Iso-Iec 11801

Overview Performance Specifications for
ISO/IEC 11801 Class D, Class E and Class F Cabling

NEXT loss, insertion loss, ELFEXT, return loss,
d.c. loop resistance, d.c. resistance unbalance, current carrying capacity, operating
voltage, power capacity, propagation delay, delay skew, unbalance attenuation, and
coupling attenuation
Henriecus Koeman
Fluke Networks
Version: December 9, 2002
Copyright notice
Fluke Networks grants a free, irrevocable license to the JTC1/SC-35/WG 3 US-TAG to incorporate text contained in this
contribution and any modifications thereof in the creation of US or international standards publications; to copyright in the
standards’ owner name any standards publication even though it may include portions of this contribution; and at US-
TAG sole discretion to permit others to reproduce in whole or in part the resulting US or international standards
publication.
.Intellectual Property Statement
The author with Fluke Networks is not aware of patents, the use of which may be essential to a standard resulting in
whole or in part from this contribution.
This is an expert contribution, which is NOT endorsed by the

US National Body.
ANY COMMENTS ON THIS DOCUMENT AND POSSIBLE CORRECTIONS ARE

HIGHLY APPRECIATED!
E-mail: henriecus.koeman@flukenetworks.com
This document contains table values at key frequencies starting on

page 16.
Overview ISO/IEC Requirement Specifications Fluke Networks

1
isolims_dec2002.doc 12/07/02 8:34 AM
Notes:
1. The information in this document reflects the final version of the ISO/IEC 11801-2002
rd
standard, which is the 3 edition of ISO/IEC 11801.
2. The cable and connector specifications are mostly in IEC documents. The assumptions used
when establishing channel, permanent link and CP link performance are shown in this
document. The corresponding requirements in the IEC document are stated often in a
different manner, and are sometimes tighter than assumed for the purpose of ISO/IEC 11801-
2002. Component requirements for parameters for which there are no channel specifications
are not included this overview. Refer to the relevant IEC documents for more detailed
performance information. In particular:
• IEC 61156-5 and IEC 61156-6 for horizontal and flexible cable.
• IEC 60603-7-7 for the modular 8-pin RJ-45 connector.
• IEC 61076-3-104 for the Class F back-up connector.
3. The requirements for permanent link and CP link depend on the total length and the number
of connectors for certain parameters (insertion loss, ACR, PS ACR, propagation delay, delay
skew, dc loop resistance, dc resistance unbalance) or just on the number of connectors
(ELFEXT and PS ELFEXT). Other parameters have test limits that do not depend on the
length and the number of connectors in the link (NEXT, PS NEXT, return loss). The tables in
this document show limits for the maximum implementation of these links. The standards
clearly state that compliance is practically verified by evaluating the difference between
channel limits and measured values for the link insertion loss and delay skew. The observed
margin establishes by what maximum length of cable a link may be extended to a channel
configuration. If more cabling components than just a patch cord at each end are added
to a link, the channel performance must always be verified for compliance. If a
maximum implementation link (90 m) meets the requirements and no more than 10 m in
total length of two compliant patch cables are added, the channel performance is
assured. The margin of other parameters that are length dependent (propagation delay,
dc loop resistance) can be assumed satisfied when it is determined that the insertion
loss and delay skew margin requirements are satisfied.
4. If the insertion loss is less than 4 dB pass/fail limits for insertion loss, NEXT and PS NEXT
parameters do not apply. For channel and permanent link return loss measurements, the
minimum insertion loss is 3 dB. For the CP link, the 4 dB rule applies to ACR and PS ACR as
well.
5. The table values for ISO/IEC 11801-2000 Class D insertion loss deviate slightly (up to 0.3 dB)
from the computed values from cable and connector requirements, because the original
ISO/IEC 11801-1995 specifications were only provided in table format. The ISO/IEC 11801-
2000 Class D table values are shown, where different than computed values. All
ISO/IEC 11801-20002 pass/fail limits will be based on equations, which are identified in
ISO/IEC 11801-2002 Annex G.

2
Overview Requirement Specifications
Horizontal and backbone link length equations
General restrictions horizontal link lengths
1 Physical length of the channel shall not exceed 100 m.
2 Physical length of the fixed horizontal cable shall not exceed 100 m. If the total length of
patch, equipment, and work area cords exceeds 10 m, the allowed physical length of the
fixed horizontal cable shall be reduced according to the horizontal link length equations
table.
3 Where a multi-user TO assembly is used, the length of the work area cord should not
exceed 20 m.
4 The length of patch cords / jumper cables should not exceed 5 m.
Horizontal link length equations

Class D Class E channels Class F
channels using Category 6 channels using
using components Category 7
Category 5 components
components
* *
Interconnect, no CP (2 connectors) H = 109-FX H = 107-3 -FX H = 107-2 -FX
* *
Cross-connect, no CP (3 connectors) H = 107-FX H = 106-3 -FX H = 106-3 -FX
* *
No cross-connect, CP (3 connectors) H = 107-FX-CY H = 106-3 -FX-CY H = 106-3 -FX-CY
* *
Cross-connect, CP (4 connectors) H = 105-FX-CY H = 105-3 -FX-CY H = 105-3 -FX-CY
H = the maximum length of the fixed horizontal cable (m)
F = combined length of patch cords/jumpers, equipment and work area cords (m)
C = the length of the CP cable (m)
X = the ratio of cord cable insertion loss (dB/m) to fixed horizontal cable insertion loss (dB/m)
Y = the ratio of CP cable insertion loss (dB/m) to fixed horizontal cable insertion loss (dB/m)
Note: For operating temperatures above 20 °C, H should be reduced by 0.2 %/°C for screened cables and
0.4 %/°C for unscreened cables
*
This length reduction is to provide an allocated margin to accommodate insertion loss deviation.
General restrictions backbone link lengths

1 Physical length of the Class D, E and F backbone channels shall not exceed 100 m.
2 When 4 connections are used, the physical length of the backbone cable should be at
least 15 m.
Backbone link length equations

Class D Class E channels Class F
Using Category 5 components B = 105-FX
Using Category 6 components B = 111-FX B = 105-3*-FX
Using Category 7 components B = 115-FX B = 107-3*-FX B = 105-3*-FX
B = the length of the backbone cable (m)
F = combined length of patch cords/jumpers and equipment cords (m)
X = the ratio of cord cable insertion loss (dB/m) to backbone cable insertion loss (dB/m)
Notes: Where channels contain a different number of connections (4 are assumed), the fixed cable length
shall be reduced (in case there are more connectors), or increased (where fewer connectors exist) by 2 m
per connection for cat 5 cables and 1 m per connection per cat 6 and 7 cables. Additionally, NEXT, return
loss and ELFEXT performance should be verified.
For operating temperatures above 20 °C, B should be reduced by 0.2 %/°C for screened cables and 0.4
%/°C for unscreened cables
*
This length reduction is to provide an allocated margin to accommodate insertion loss deviation.

3
Overview Requirement Specifications Insertion loss
Parameter Class D-2000 Class D-2002 Class E Class F
Frequency Range 100 MHz 100 MHz 250 MHz 600 MHz
Cable
insertion loss
0.2 0 .2 0.25 0.2
1.967 f + 0.02 f + 1.9108 f + 0.0222 f + 1.82 f + 0.0169 f + 1.8 f + 0.01 f +
f f f f
±0.3 dB approx)
(±
100 MHz 21.7 dB 21.3 dB 19.9 dB 19.0 dB
250 MHz 33.0 dB 31.0 dB
600 MHz 50.1 dB
Connector
insertion loss
0.04 * f 0.04 * f 0.02 * f 0.02 * f
0.1 dB min 0.1 dB min 0.1 dB min 0.1 dB min
100 MHz 0.4 dB 0.4 dB 0.2 dB 0.2 dB
250 MHz 0.3 dB 0.3 dB
600 MHz 0.5 dB
Channel insertion 100 m 100 m 100 m 100 m
loss
1.05 * att + 3 * att 1.05 * att + 4 * att 1.05 * att + 4 * att 1.05 * att + 4 * att
ca co ca co ca co ca co
± 0.2 dB approx.)
(± 4 dB min 4 dB min 4 dB min
100 MHz 24.0 dB 24.0 dB 21.7 dB 20.8 dB
250 MHz 35.9 dB 33.8 dB
600 MHz 54.6 dB
Permanent Link 90 m 90 m + 3 connectors 90 m + 3 connectors 90 m + 3 connectors
insertion loss L=90 n = 3 L=90 n = 3 L=90 n = 3
(Maximum 0.9 * att + 2 * att L
* att + n * att
L
* att + n * att
L
* att + n * att
implemenation) ca co ca co ca co
100 100 100 ca co
± 0.3 dB approx.)
(±
4 dB min 4 dB min 4 dB min
100 MHz 20.6 dB 20.4 dB 18.5 dB 17.7 dB
250 MHz 30.7 dB 28.8 dB

600 MHz 46.6 dB
CP Link insertion na 90 m + 2 connectors 90 m + 2 connectors 90 m + 2 connectors
loss L=90 n = 2 L=90 n = 2 L=90 n = 2
(Maximum na L L L
implemenation) * att + n * att * att + n * att * att + n * att
100 ca co 100 ca co 100 ca co
4 dB min 4 dB min 4 dB min
100 MHz na 20.0 dB 18.3 dB 17.5 dB
250 MHz 30.3 dB 28.5 dB

600 MHz 46.1 dB
Notes:
• Permanent link and CP link specifications have limits as a function of length and number of connectors.
This table shows the maximum implementation of the permanent link (90 m + 3 connections) and CP link (90
m + 2 connections). Margins relative to channel requirements are to be used when testing links against
length dependent limits.
• Temperature effects of insertion loss in cable (0.4 %/°°C up to 40 °C, 0.6 %/°°C up to 60 °C) and ILD must be
accounted for by reduced maximum length of horizontal cabling or maximum length of patch
cords/jumpers.
• Class E channels: ILD ≈ 1 dB @ 250 MHz (approx. 3 m reduction of horizontal cabling or 2 m of patch
cordage).
• Class F channels: ILD ≈ 2 dB @ 600 MHz (approx. 3 m reduction of horizontal cabling or 2 m of patch
cordage).

4
Overview Requirement Specifications NEXT loss
Cable NEXT loss 100 m 100 m 100 m 100 m
Pair-to-pair
64 − 15 logç
f
÷
65.3 − 15 log( f ) 74.3 − 15 log( f ) 102 .4 − 15 log ( f )
0.772 75 dB max 75 dB max 75 dB max
100 MHz PP 32.3 dB 35.3 dB 44.3 dB 72.4 dB
250 MHz PP 38.3 dB 66.4 dB
600 MHz PP 60.7 dB
Power sum
61 − 15 logç
f
÷ 62.3 − 15 log( f ) 72.3 − 15 log( f ) 99.4 − 15 log ( f )
0.772 75 dB max 75 dB max 75 dB max
100 MHz PS 29.3 dB 32.3 dB 42.3 dB 69.4 dB
250 MHz PS 36.3 dB 63.4 dB
600 MHz PS 57.7 dB
Conn NEXT loss
Pair-to-pair
56 − 20 logç
f
÷ 83 − 20 log ( f ) 94 − 20 log( f ) 102 .4 − 15 log ( f )
16 80 dB max 80 dB max 80 dB max
100 MHz PP 40.1 dB 43.0 dB 54.0 dB 72.4 dB
250 MHz PP 46.0 dB 66.4 dB
600 MHz PP 60.7 dB
Power sum f 80 − 20 log( f ) 90 − 20 log( f ) 99.4 − 15 log( f )
53 − 20 logç ÷
16 77 dB max 77 dB max 77 dB max
100 MHz PS 37.1 dB 40.0 dB 50.0 dB 69.4 dB
250 MHz PS 42.0 dB 63.4 dB
600 MHz PS 57.7 dB
Note:
NEXT loss requirements for cable over 75 dB and connecting hardware over 80 dB are for information only
(measurement cap) in ISO/IEC 11801-2002.
Additional crosstalk requirements for hybrid cable

Class D-2000 Class D-2002 Class E Class F
PS NEXT not specified 68.3 − 15log( f ) 77.3 − 15 log( f ) 105.4 − 15 log( f )
100 MHz PS 38.3 dB 47.3 dB 75.0 dB
250 MHz PS 41.3 dB 69.4 dB
600 MHz PS 63.7 dB

5
Overview Requirement Specifications NEXT loss (continued)
Channel NEXT loss 100 m 100 m 100 m 100 m
( 4 conn model)
− N ca − N co − N co − N ca − N co
Pair-to-pair æ − Nca ö æ − N ca − N co
ö
−20 logç 10 20
+ 2 * 10 20
÷ −20 logç 10 20 + 2 * 10 20 ÷ − 20 logç10 20 + 2 * 10 20 −20 logç10 20
+ 2 * 10 20
÷
è ç
è
60 dB max 60 dB max 65 dB max 65 dB max
100 MHz PP 27.1 dB 30.1 dB 39.9 dB 62.9 dB
250 MHz PP 33.1 dB 56.9 dB
600 MHz PP 51.2 dB
Power sum 57 dB max 57 dB max 62 dB max 62 dB max
100 MHz PS 24.1 dB 27.1 dB 37.1 dB 59.9 dB
250 MHz PS 30.2 dB 53.9 dB
600 MHz PS 48.2 dB
Permanent Link 90 m up to 90 m up to 90 m up to 90 m
NEXT loss 2 or 3 connectors 2 or 3 connectors 2 or 3 connectors
Pair-to-pair æ − N ca − N co
ö æ − N ca − N co
ö
− 20 logç10 20 + 10 20 − 20 logç10 20 + 10 20 ÷ − 20 logç10 20 + 10 20 ÷ − 20 logç10 20 + 10 20 ÷
ç ç ÷ ç ÷ ç ÷
è è è è
100 MHz PP 29.3 dB 32.3 dB 41.8 dB 65.0 dB
250 MHz PP 35.3 dB 60.4 dB
600 MHz PP 54.7 dB
Power sum æ − N ca − N co
ö
− 20 logç10 20 + 10 20 ÷ − 20 logç10 20 + 10 20 ÷ − 20 logç10 20 + 10 20 ÷ − 20 logç10 20 + 10 20 ÷
ç ÷ ç ÷ ç ÷ ç ÷
è è è è
100 MHz PS 26.3 dB 29.3 dB 39.3 dB 62.0 dB
250 MHz PS 32.7 dB 57.4 dB
600 MHz PS 51.7 dB
CP Link NEXT loss na up to 90 m up to 90 m up to 90 m
2 connectors 2 connectors 2 connectors
Pair-to-pair na æ − N ca − N co
ö
− 20 logç10 20 + 10 20 ÷ − 20 logç10 20 + 10 20 ÷ − 20 logç10 20 + 10 20 ÷
ç ÷ ç ÷ ç ÷
è è è
60 dB max 65 dB max 65 dB max
100 MHz PP na 32.3 dB 41.8 dB 65.0 dB
250 MHz PP 35.3 dB 60.4 dB
600 MHz PP 54.7 dB
Power sum na æ − N ca − N co
ö
− 20 logç10 20 + 10 20 ÷ − 20 logç10 20 + 10 20 ÷ − 20 logç10 20 + 10 20 ÷
ç ÷ ç ÷ ç ÷
è è è
100 MHz PS na 29.3 dB 39.3 dB 62.0 dB
250 MHz PS 32.7 dB 57.4 dB
600 MHz PS 51.7 dB
Notes:
• If the insertion loss in the channel or permanent link is less than 4 dB, the pass/fail limits for NEXT/PS NEXT
loss shall not apply. The ACR/PS ACR pass/fail limits shall always apply.
• If the insertion loss in the CP link is less than 4 dB, the pass/fail limits for NEXT/PS NEXT loss shall not
apply. The ACR/PS ACR pass/fail limits shall also not apply.
• It will always be necessary to certify the channel whenever more components than a compliant patch cable
at each end of a permanent link or CP link is added.

6
Overview requirement specifications for NEXT loss of patch cords
Method of calculating pass/fail limit for patch cords:
æ − NEXT − NEXT + 2 ⋅ IL
ç connectors, dB cable, dB connector , dB ö
ç 10
NEXT = − 10 ⋅ logç10 10 + 10 + RFEXT
cord , dB ç
ç
ç
è
where :
NEXT cord, dB - is the NEXT of the entire cord in dB
NEXT connectora, dB - is the NEXT of the connectors in dB
NEXT cable, dB - is the NEXT of the cable itself in dB
IL connector, dB - is the insertion loss of one connector in dB
RFEXT - is the allowance for reflected FEXT effects
RFEXT = 0 dB for category 5 patch cords and
RFEXT = 0.5 dB for category 6 and 7patch cords
æ æ ö
ö
ç − NEXT − NEXT + 2 ⋅ ççç IL + IL
and:
ç local , dB remote , dB è cable , dB connector , dB
NEXT = − 20 ⋅ logç10 20 + 10 20
connectors , dB ç
ç
ç
è
The frequency dependence of NEXT, if the anchor value at 100 MHz is known, is given by:
æ f ö
NEXT local , dB = NEXT remote , dB = NEXTconnector , dB (100 ) − 20 ⋅ log ç
è 100
for category 7 patch cords.
æ f ö
NEXT local , dB = NEXT remote , dB = NEXTconnector , dB (100) − 15 ⋅ log ç
è 100
for category 5 and 6 patch cords.
L
IL ≈α ⋅
cable , dB cable , 100 m , dB 100
where :
NEXT local, dB - is the NEXT of the connector at the local end of the cord in dB
NEXT remote, dB - is the NEXT of the connector at the remote end of the cord in dB
IL cable, dB - is the insertion loss of the cable in dB
IL connector, dB - is the insertion loss of the connector in dB
NEXT connector, dB(100) - is the NEXT of the connector in dB at 100 MHz
α cable, 100 m, dB - is the insertion loss of 100 m of the cable used for the cord
L - is the length of the cable in the cord
The length corrected near-end crosstalk of the cable of the plug cord is given by:
α
L cable, 100 m , dB
1 − 10100 5
NEXT = NEXT − 10 ⋅ log
cable, L , dB cable, 100 m , dB α
cable, 100 m , dB
1 − 10 5
Calculations yielding NEXT limits in excess of 65 dB shall revert to a limit of 65 dB.
Assumptions for test head for the anchor value at 100 MHz:
• Category 5: NEXT
connector , dB
(100) = 41. 0
connector , dB
(100) = 54. 0
connector , dB
(100) = 72.4

7
Overview of NEXT loss patch cord requirements
Frequency ISO/IEC –2002 Cat 5 ISO/IEC –2002 Cat 6 ISO/IEC –2002 Cat 7
(MHz) (dB) (dB) (dB)
1m 2m 5m 10 m 1m 2m 5m 10 m 1m 2m 5m 10 m
1 65.0 65.0 65.0 65.0 65.0 65.0 65.0 65.0 65.0 65.0 65.0 65.0
4 62.5 62.1 61.1 59.9 65.0 65.0 65.0 65.0 65.0 65.0 65.0 65.0
10 54.7 54.3 53.4 52.5 65.0 65.0 63.9 62.4 65.0 65.0 65.0 65.0
16 50.7 50.3 49.5 48.7 62.4 61.6 60.0 58.5 65.0 65.0 65.0 65.0
20 48.8 48.4 47.7 46.9 60.5 59.7 58.2 56.7 65.0 65.0 65.0 65.0
31.25 45.0 44.7 44.0 43.3 56.7 56.0 54.5 53.1 65.0 65.0 65.0 65.0
62.5 39.1 38.9 38.4 38.0 50.8 50.1 48.8 47.7 65.0 65.0 65.0 65.0
100 35.2 35.0 34.7 34.5 46.8 46.2 45.0 44.2 65.0 65.0 65.0 65.0
125 44.9 44.3 43.3 42.5 64.8 65.0 65.0 65.0
155.52 43.1 42.5 41.5 40.9 63.4 63.6 64.1 64.7
175 42.1 41.5 40.6 40.1 62.7 62.9 63.3 64.0
200 41.0 40.5 39.6 39.1 61.8 62.0 62.6 63.2
250 39.1 38.6 37.9 37.6 60.4 60.7 61.2 61.9
300 59.3 59.5 60.2 60.9
450 56.8 57.1 57.8 58.6
600 55.0 55.4 56.2 57.0
Overview ACR

ACR Channel PP
100 MHz PP 3.1 dB 6.1 dB 18.2 dB 42.1 dB
250 MHz PP -2.8 dB 23.1 dB
(@250 MHz)
3.0 dB (@200 MHz)
600 MHz PP -3.4 dB
ACR Channel PS
100 MHz PS 0.1 dB 3.1 dB 15.4 dB 39.1 dB
250 MHz PS -5.8 dB (250 MHz) 20.1 dB
0.1 dB (@200 MHz)
600 MHz PS -6.4 dB
For Class F, also the ACR values for a two-connector model are shown in the draft standard. In this case assume for the
channel and permanent link formulas:
• Insertion loss: 2 connectors are present.
• NEXT and PS NEXT loss: 1 connector is present (at each end).
• The Power Sum ACR value is then 0 dB @ 570MHz.
• The insertion loss limits at 100 MHz, 250 MHz and 600 MHz are respectively 20.4 dB, 33.2 dB, and 53.6 dB.
• The PP NEXT loss limits at 100 MHz, 250 MHz and 600 MHz are respectively 65.0 dB, 60.4 dB, and 54.7 dB.
• The PS NEXT loss limits at 100 MHz, 250 MHz and 600 MHz are respectively 62.0 dB, 57.4 dB, and 51.7 dB.
• The PP ACR limits at 100 MHz, 250 MHz and 600 MHz are respectively 44.6 dB, 27.3 dB, and 1.1 dB.
• The PS ACR limits at 100 MHz, 250 MHz and 600 MHz are respectively 41.6 dB, 24.3 dB, and –1.9 dB.
• For permanent links and CP links in case of length dependent test results, the ACR and PS ACR are subject to a
4 dB minimum insertion loss requirement as for NEXT.

8
Overview Requirement Specifications ELFEXT
100 m 100 m 100 m 100 m
Cable ELFEXT
Pair-to-pair æ f ö 63.8 − 20 log( f ) 67.8 − 20 log( f ) 94 − 20 log( f )
66 − 20 logç
è 0.772 75 dB max 75 dB max 75 dB max
100 MHz PP 23.8 dB 23.8 dB 27.8 dB 54.0 dB
250 MHz PP 19.8 dB 46.0 dB
600 MHz PP 38.4 dB
Power sum æ f ö 60.8 − 20 log( f ) 64.8 − 20 log( f ) 91 − 20 log( f )
63 − 20 logç ÷
è 0.772 75 dB max 75 dB max 75 dB max
75 dB max
100 MHz PS 20.8 dB 20.8 dB 24.8 dB 51.0 dB
250 MHz PS 16.8 dB 43.0 dB
600 MHz PS 35.4 dB
Connector FEXT 75.1 − 20 log( f ) 75.1 − 20 log( f ) 83.1 − 20 log( f ) 90 − 15 log( f )
loss Pair-to-pair 75 dB max 65 dB max 65 dB max 65 dB max
100 MHz PP 35.1 dB 35.1 dB 43.1 dB 60.0 dB

250 MHz PP 35.1 dB 54.0 dB
600 MHz PP 48.3 dB
Power sum 72.1 − 20 log( f ) 72.1 − 20 log( f ) 80.1 − 20 log( f ) 87 − 15 log( f )
100 MHz PS 32.1 dB 32.1 dB 40.1 dB 57.0 dB
250 MHz PS 32.1 dB 51.0 dB
600 MHz PS 45.3 dB
Note:
ELFEXT and FEXT loss requirements for cable over 75 dB and connecting hardware over 65 dB are for
information only (measurement cap).

9
Overview Requirement Specifications ELFEXT (continued)

Channel ELFEXT 100 m 100 m 100 m 100 m
4 connectors
Pair-to-pair æ f ö æ − N ca −N ö æ − N ca −N ö æ − N ca −N ö
ç co ç co ç
17.0 − 20 logç
co
− 20 logçç10 20 + 4 * 10 20 − 20 logç10 20 + 4 * 10 20 − 20 logçç10 20 + 4 *10 20
è 100 ç
ç ç çç
è è è
100 MHz PP 17.0 dB 17.4 dB 23.3 dB 44.4 dB

250 MHz PP 15.3 dB 37.8 dB
600 MHz PP 31.3 dB
Power sum f æ −N −N ö æ −N −N ö æ − N ca −N ö
ç ç ÷
14.4 − 20 logç ÷ ca co ca co ç
ç
co
100 − 20 logç10 20 + 4 * 10 20 − 20 logç10 20 + 4 * 10 20 ÷ − 20 logç10 20 + 4 * 10 20
ç ç ÷
ç ç ÷ çç
è è è
100 MHz PS 14.4 dB 14.4 dB 20.3 dB 41.4 dB
250 MHz PS 12.3 dB 34.8 dB
600 MHz PS 28.3 dB
Permanent link 90 m up to 90 m up to 90 m up to 90 m
ELFEXT 2 or 3 connectors (n) 2 or 3 connectors (n) 2 or 3 connectors (n)
Pair-to-Pair æ f ö æ − N ca −N ö æ − N ca −N ö æ − N ca −N ö
19.6 − 20 logç ç co ç co ÷ ç co ÷
÷
è 100 − 20 logçç10 20 + n *10 20 − 20 logçç10 20 + n *10 20 ÷
÷ − 20 logçç10 20 + n *10 20 ÷
÷
ç ç ÷ ç ÷
è è è
100 MHz PP (n = 3) 19.6 dB 18.6 dB 24.2 dB 46.0 dB
250 MHz PP (n = 3) 16.2 dB 39.2 dB
600 MHz PP (n = 3) 32.6 dB
Power sum æ f ö æ − N ca −N ö æ − N ca −N ö æ − N ca −N ö
17.0 − 20 logç ç co ÷ ç co ÷ ç co ÷
÷
è 100 − 20 logçç10 20 + n *10 20 ÷
÷ − 20 logçç10 20 + n *10 20 ÷
÷ − 20 logçç10 20 + n *10 20 ÷
÷
ç ÷ ç ÷ ç ÷
è è è
100 MHz PS (n = 3) 17.0 dB 15.6 dB 21.2 dB 43.0 dB
250 MHz PS (n = 3) 13.2 dB 36.2 dB
600 MHz PS (n = 3) 29.6 dB
CP link ELFEXT na up to 90 m up to 90 m up to 90 m
Pair-to-Pair na æ − N ca −N ö æ − N ca −N ö æ − N ca −N ö
ç co ç co ÷ ç co ÷
− 20 logçç10 20 + 2 *10 20 − 20 logçç10 20 + 2 *10 20 ÷
÷ − 20 logçç10 20 + 2 *10 20 ÷
÷
ç ç ÷ ç ÷
è è è
100 MHz PP na 20.0 dB 25.2 dB 48.0 dB
250 MHz PP 17.3 dB 40.9 dB

600 MHz PP 34.1 dB
Power sum na æ − N ca −N ö æ − N ca −N ö æ − N ca −N ö
ç co ÷ ç co ÷ ç co ÷
− 20 logçç10 20 + 2 *10 20 ÷
÷ − 20 logçç10 20 + 2 *10 20 ÷
÷ − 20 logçç10 20 + 2 *10 20 ÷
÷
ç ÷ ç ÷ ç ÷
è è è
100 MHz PS na 17.0 dB 22.2 dB 45.0 dB
250 MHz PS 14.3 dB 37.9 dB

600 MHz PS 31.1 dB
Note:
When the measured FEXT values exceed 70 dB, the pass/fail limits for ELFEXT for a channel, permanent link and
CP link do not apply. This practically only occurs for Class F at high frequencies.

10
Overview Requirement Specifications Return Loss
The return loss requirements for cable consist of:
• A mean characteristic impedance requirement based on the velocity of propagation @ 100 MHz and mutual
capacitance, and a
• Return loss requirement starting at 4 MHz.

100 MHz 100 MHz 250 MHz 600 MHz
Mean characteristic ± 15 Ω ±5Ω ±5Ω ±5Ω
impedance
Cable RL 100 m 100 m 100 m 100 m
(solid conductor)
Return loss no change 4 – 10 MHz: 4 – 10 MHz: 4 – 10 MHz:
20+5 log(f) 20+5 log(f) 20+5 log(f)
10–20 MHz: 25 dB 10–20 MHz: 25 dB 10–20 MHz: 25 dB
20-100 MHz: 20-250 MHz: 20-250 MHz:
34.1-7 log(f) 34.1-7 log(f) 34.1-7 log(f)
100 MHz 20.1 20.1 20.1
250 MHz 17.3 17.3
600 MHz 17.3
Cable RL 100 m 100 m 100 m 100 m
(stranded)
Return loss no change 4 – 10 MHz: 4 – 10 MHz: 4 – 10 MHz:
20+5 log(f) 20+5 log(f) 20+5 log(f)
10–20 MHz: 25 dB 10–20 MHz: 25 dB 10–20 MHz: 25 dB
20-100 MHz: 20-250 MHz: 20-250 MHz:
36.2-8.6 log(f) 36.2-8.6 log(f) 36.2-8.6 log(f)
100 MHz 19.0 19.0 19.0
250 MHz 15.6 15.6
600 MHz 15.6
RL
patch cord assy
1 – 25 MHz not specified 19.8 + 3 log( f ) 19.8 + 3 log( f ) 19.8 + 3 log( f )
25 MHz – up not specified 38.0 − 10 log( f ) 38.0 − 10 log( f ) 38.0 − 10 log( f )
100 MHz not specified 18.0 dB 18.0 dB 18.0 dB
250 MHz 14.0 dB 14.0 dB
600 MHz 10.2 dB
Conn RL
1 – 10 MHz 26 dB 26 dB 30 dB 30 dB
20 MHz – 100 MHz æ f ö 60 − 20 log( f ) 64 − 20 log( f ) 68 − 20 log( f )
26 − 20 * logç
è 20 30 dB max 30 dB max
100 MHz–250 MHz 64 − 20 log( f ) 68 − 20 log( f )

100 MHz 12.0 dB 20.0 dB 24.0 dB 28.0 dB
250 MHz 16.0 dB 20.0 dB
600 MHz 12.4 dB

11
Overview Requirement Specifications Return Loss (continued)
Channel RL up to 100 m up to 100 m up to 100 m up to 100 m
(17 dB max) (17 dB max) (19 dB max) (19 dB max)
1 – 10 MHz 17 17 19 19
10 – 20 MHz 17 17 24 − 5 log( f ) 24 − 5 log( f )
20 MHz –40 MHz f 30 − 10 log( f ) 24 − 5 log( f ) 24 − 5 log( f )
17 − 10 logç ÷
20
30 − 10 log( f ) 32 − 10 log( f ) 32 − 10 log( f )
17 − 10 logæç ö÷
40 – 100 MHz f
è 20
100 – 250 MHz 32 − 10 log( f ) 32 − 10 log( f )
250 – 600 MHz 8 dB
100 MHz 10.0 dB 10.0 dB 12.0 dB 12.0 dB
250 MHz 8.0 dB 8.0 dB
600 MHz 8.0 dB
Permanent Link RL up to 90 m up to 90 m up to 90 m up to 90 m
2 or 3 connectors 2 or 3 connectors 2 or 3 connectors
(17 dB max) (19 dB max) (21 dB max) (21 dB max)
1 – 10 MHz 17 dB 19 dB 21 dB 21 dB
10 – 20 MHz 17 dB 19 dB 26 − 5 log ( f ) 26 − 5 log ( f )
20 MHz –40 MHz æ f ö 32 − 10 log( f ) 26 − 5 log ( f ) 26 − 5 log ( f )
17 − 7 logç
è 20
40 – 100 MHz æ f ö 32 − 10 log( f ) 34 − 10 log( f ) 34 − 10 log( f )
17 − 7 logç ÷
è 20
100 – 250 MHz 34 − 10 log( f ) 34 − 10 log( f )
250 – 600 MHz 10 dB
100 MHz 12.1 dB 12.0 dB 14.0 dB 14.0 dB
250 MHz 10.0 dB 10.0 dB
600 MHz 10.0 dB
CP Link RL na up to 90 m up to 90 m up to 90 m
(19 dB max) (21 dB max) (21 dB max)
1 – 10 MHz na 19 dB 21 dB 21 dB
10 – 20 MHz na 19 dB 26 − 5 log ( f ) 26 − 5 log ( f )
20 MHz –40 MHz na 32 − 10 log( f ) 26 − 5 log ( f ) 26 − 5 log ( f )
40 – 100 MHz na 32 − 10 log( f ) 34 − 10 log( f ) 34 − 10 log( f )
100 – 250 MHz 34 − 10 log( f ) 34 − 10 log( f )
250 – 600 MHz 10 dB
100 MHz na 12.0 dB 14.0 dB 14.0 dB
250 MHz 10.0 dB 10.0 dB
600 MHz 10.0 dB
Note:
Return loss pass/fail limits for the channel, permanent link and CP link do not apply when the insertion loss is
below 3 dB.

12
Overview Requirement Specifications Propagation Delay
100 MHz 100 MHz 250 MHz 600 MHz
Cable PD Prop. Delay Prop. Delay Prop. Delay Prop. Delay
36 36 36 36
534 + 534 + 534 + 534 +
f f f f
1 MHz 570 ns 570 ns 570 ns 570 ns
2 MHz 559 ns 559 ns 559 ns 559 ns
10 MHz 545 ns 545 ns 545 ns 545 ns
100 MHz 538 ns 538 ns 538 ns 538 ns
250 MHz 536 ns 536 ns
600 MHz 535 ns
Conn PD
1 MHz and up 2.5 ns 2.5 ns 2.5 ns 2.5 ns
Channel PD d +4d d +4d d +4d d +4d
ca conn ca conn ca conn ca conn
1 MHz 580 580 580 580
2 MHz 569 569 569 569
10 MHz 555 555 555 555
100 MHz 548 548 548 548
125 MHz 547 547
200 MHz 547 547
250 MHz 546 546
600 MHz 545
Permanent Link up to 90 m (L) up to 90 m (L) up to 90 m (L)
PD 2 or 3 connectors (n) 2 or 3 connectors (n) 2 or 3 connectors (n)
d + 3d L L L
ca conn d +nd d +nd d +nd
100 ca conn 100 ca conn 100 ca conn
1 MHz 521 521 521 521
2 MHz 511 511 511 511
10 MHz 498 498 498 498
100 MHz 491 491 491 491
125 MHz 491 491
200 MHz 490 490
250 MHz 490 490
600 MHz 489
CP Link PD na up to 90 m (L) up to 90 m (L) up to 90 m (L)
na L L L
d +2d d +2d d +2d
1 MHz na 518 518 518
2 MHz na 509 509 509
10 MHz na 496 496 496
100 MHz na 489 489 489
125 MHz 488 488
200 MHz 488 488
250 MHz 488 488
600 MHz 487
Notes:
This table shows the maximum implementation of the permanent link (90 m + 3 connections) and CP link (90
m + 2 connections). Margins relative to channel requirements are to be used when testing links against
length dependent limits. If the insertion loss and delay skew requirements are met based on margin
analysis, it is assumed per the standards guidelines that the propagation delay requirements are met as
well.

13
Overview Requirement Specifications Delay Skew
Cable DS 100 m 100 m 100 m 100 m
any frequency 45 ns 45 ns 45 ns 25 ns
Conn DS
Delay Skew 1.25 ns 1.25 ns 1.25 ns 1.25 ns
Channel DS 100 m 100 m 100 m 100 m
Delay Skew ds + 4 ds ds + 4 ds ds + 4 ds ds + 4 ds
ca conn ca conn ca conn ca conn
Permanent Link DS 90 m up to 90 m (L) up to 90 m (L) up to 90 m (L)
2 or 3 connectors (n) 2 or 3 connectors (n) 2 or 3 connectors (n)
Delay Skew 0.9 dsca+ 2 dsconn L L L
ds + n ds ds + n ds ds + n ds
(3 connectors)
CP Link DS 90 m up to 90 m (L) up to 90 m (L) up to 90 m (L)
Delay Skew 0.9 dsca+ 2 dsconn L L L
ds + 2 ds ds + 2 ds ds + 2 ds
(2 connectors)
Note:
This table shows the maximum implementation of the permanent link (90 m + 3 connections) and CP link
(90 m + 2 connections). Margins relative to channel requirements are to be used when testing links against
length dependent limits.
Overview Requirement Specifications DC Loop Resistance

Cable (100 m) 30 Ω 19 Ω 19 Ω 19 Ω
Connectors 0.3 Ω 0.2 Ω 0.2 Ω 0.2 Ω
Channel up to 100 m up to 100 m up to 100 m up to 100 m
4 connectors 4 connectors 4 connectors 4 connectors
dc resistance 40 Ω 25 Ω 25 Ω 25 Ω
Permanent link up to 90 m up to 90 m (L) up to 90 m (L) up to 90 m (L)
3 connectors 2 or 3 connectors (n) 2 or 3 connectors (n) 2 or 3 connectors (n)
dcr + 3 dcr L L L
ca conn 22 + n ⋅ 0.4 22 + n ⋅ 0.4 22 + n ⋅ 0.4
100 100 100
dc resistance 34 Ω 21 Ω 21 Ω 21 Ω
CP link na up to 90 m (L) up to 90 m (L) up to 90 m (L)
na L L L
22 + 2 ⋅ 0.4 22 + 2 ⋅ 0.4 22 + 2 ⋅ 0.4
100 100 100
dc resistance na 20.6 Ω 20.6 Ω 20.6 Ω
Note:
length dependent limits. If the insertion loss and delay skew margins satisfy their requirements, per the
standard, it may be assumed that the dc loop resistance requirements are met as well.

14
Overview Requirement Specifications DC Loop Resistance Unbalance
Cable (100 m) na 3% 3% 3%
Connectors na 0.05 Ω 0.05 Ω 0.05 Ω
Channel up to 100 m up to 100 m up to 100 m up to 100 m
4 connectors 4 connectors 4 connectors 4 connectors
dc resistance na 3% 3% 3%
unbalance
Permanent link up to 90 m up to 90 m (L) up to 90 m (L) up to 90 m (L)
3 connectors 2 or 3 connectors (n) 2 or 3 connectors (n) 2 or 3 connectors (n)
CP link na up to 90 m (L) up to 90 m (L) up to 90 m (L)
unbalance
Note:
• DC resistance unbalance requirements are assumed to be met by design and are not a field test
measurement requirement.
length dependent limits. If the insertion loss and delay skew margins satisfy their requirements, per the
standard, it may be assumed that the dc loop resistance unbalance requirements are met as well.
Overview Requirement Specifications DC power supply

Current carrying unspecified 0.175 A per 0.175 A per 0.175 A per
capacity conductor conductor conductor
Operating voltage unspecified 72 V 72 V 72 V
Power capacity unspecified 10 W 10 W 10 W
Overview unbalance attenuation (LCL)

100 MHz 100 MHz 250 MHz 600 MHz
Cable
1 MHz and up not specified 40 − 10 log( f ) 40 − 10 log( f ) 40 − 10 log( f )
100 MHz 20.0 dB 20.0 dB 20.0 dB
200 MHz 17.0 dB 17.0 dB
250 MHz ffs ffs
600 MHz ffs
Connectors
1 – 100 MHz not specified 66 − 20 log( f ) 66 − 20 log( f ) 66 − 20 log( f )
100 – 250 MHz 66 − 20 log( f ) 66 − 20 log( f )
250 – 600 MHz 66 − 20 log( f ) (ffs)
100 MHz 26.0 dB 26.0 dB 26.0 dB
250 MHz 18.0 dB 18.0 dB
600 MHz ffs
Channel
1 MHz and up not specified 40 − 10 log( f ) (ffs) 40 − 10 log( f ) (ffs) 40 − 10 log( f ) (ffs)
100 MHz 20.0 dB 20.0 dB 20.0 dB
250 MHz 16.0 dB 16.0 dB
600 MHz 12.2 dB

15
OVERVIEW ISO/IEC SPECIFICATIONS
December 9, 2002
ISO/IEC 11801-2002 Class D

Class D – 2002, Cable (refer also to IEC 61156-5 and IEC 61156-6)
Freq. Insertio NEX ACR NEXT ACR ELFEXT ELFEXT Ret. Ins. Ret.
(MHz) n loss T pp pp ps ps pp ps Loss Loss Loss
(sol.) (str.) (str.)
1 2.1 65.3 63.2 62.3 60.2 63.8 60.8 na 3.2 na dB
4 4.0 56.3 52.3 53.3 49.3 51.8 48.8 23.0 6.0 23.0 dB
10 6.3 50.3 44.0 47.3 41.0 43.8 40.8 25.0 9.5 25.0 dB
16 8.0 47.2 39.2 44.2 36.2 39.7 36.7 25.0 12.1 25.0 dB
20 9.0 45.8 36.8 42.8 33.8 37.8 34.8 25.0 13.6 25.0 dB
31.25 11.4 42.9 31.5 39.9 28.5 33.9 30.9 23.6 17.1 23.3 dB
62.5 16.5 38.4 21.8 35.4 18.8 27.9 24.9 21.5 24.8 20.8 dB
100 21.3 35.3 14.0 32.3 11.0 23.8 20.8 20.1 32.0 19.0 dB
Return loss for cable is currently specified on the basis of mean characteristic impedance (100 Ω ± 5 Ω) as well
as return loss at frequencies > 4 MHz.
Class D – 2002, Connecting Hardware (refer also to IEC 60603-7-7)

Freq. Insertion NEXT ACR NEXT ACR ELFEXT ELFEXT Return Loss
(MHz) loss pp pp ps ps pp ps
1 0.1 83.0 80.0 75.1 72.1 26.0 dB
4 0.1 71.0 68.0 63.1 60.1 26.0 dB
10 0.1 63.0 60.0 55.1 52.1 26.0 dB
16 0.2 58.9 55.9 51.0 48.0 26.0 dB
20 0.2 57.0 54.0 49.1 46.1 26.0 dB
31.25 0.2 53.1 50.1 45.2 42.2 26.0 dB
62.5 0.3 47.1 44.1 39.2 36.2 24.1 dB
100 0.4 43.0 40.0 35.1 32.1 20.0 dB
Class D – 2002, Channel

(MHz) loss pp * pp ps * ps pp ps **
1 4.0 60.0 56.0 57.0 53.0 57.4 54.4 17.0 dB
4 4.5 53.5 49.0 50.5 46.0 45.4 42.4 17.0 dB
10 7.2 47.0 39.8 44.0 36.8 37.4 34.4 17.0 dB
16 9.1 43.6 34.5 40.6 31.5 33.3 30.3 17.0 dB
20 10.2 42.0 31.8 39.0 28.8 31.4 28.4 17.0 dB
31.25 12.9 38.7 25.8 35.7 22.8 27.5 24.5 15.1 dB
62.5 18.6 33.6 15.0 30.6 12.0 21.5 18.5 12.0 dB
100 24.0 30.1 6.1 27.1 3.1 17.4 14.4 10.0 dB
* for insertion loss values > 4 dB
** for insertion loss values > 3 dB
Class D – 2002, Permanent Link (maximum implementation: 90 m, 3 connectors)

(MHz) loss pp * pp * ps * ps * pp ps **
1 4.0 60.0 56.0 57.0 53.0 58.6 55.6 19.0 dB
4 4.0 54.8 50.8 51.8 47.8 46.6 43.6 19.0 dB
10 6.1 48.5 42.4 45.5 39.4 38.6 35.6 19.0 dB
16 7.7 45.2 37.5 42.2 34.5 34.5 31.5 19.0 dB
20 8.7 43.7 35.0 40.7 32.0 32.6 29.6 19.0 dB
31.25 10.9 40.5 29.6 37.5 26.6 28.7 25.7 17.1 dB
62.5 15.8 35.7 19.8 32.7 16.8 22.7 19.7 14.0 dB
100 20.4 32.3 11.9 29.3 8.9 18.6 15.6 12.0 dB
** for insertion loss values > 3 B

16
December 9, 2002
Class D – 2002, CP link (maximum implementation: 90 m, 2 connectors)

(MHz) loss pp * PP * ps * ps * pp ps **
1 4.0 60.0 56.0 57.0 53.0 60.0 57.0 19.0 dB
4 4.0 54.8 50.8 51.8 47.8 48.0 45.0 19.0 dB
10 5.9 48.5 42.5 45.5 39.5 40.0 37.0 19.0 dB
16 7.6 45.2 37.7 42.2 34.7 35.9 32.9 19.0 dB
20 8.5 43.7 35.2 40.7 32.2 34.0 31.0 19.0 dB
31.25 10.7 40.5 29.8 37.5 26.8 30.1 27.1 17.1 dB
62.5 15.5 35.7 20.2 32.7 17.2 24.1 21.1 14.0 dB
100 20.0 32.3 12.3 29.3 9.3 20.0 17.0 12.0 dB
** for insertion loss values > 3 B
ISO/IEC 11801-2002 Class E

Class E – 2002, Cable (refer also to IEC 61156-5 and IEC 61156-6)
Freq. Insertion NEXT ACR NEXT ACR ELFEXT ELFEXT Return Ins. Return
(MHz) loss pp pp ps ps pp ps Loss Loss Loss
(sol.) (str.) (str.)
1 2.1 74.3 72.2 72.3 70.2 67.8 64.8 na 3.1 na dB
4 3.8 65.3 61.4 63.3 59.4 55.8 52.8 23.0 5.7 23.0 dB
10 6.0 59.3 53.3 57.3 51.3 47.8 44.8 25.0 9.0 25.0 dB
16 7.6 56.2 48.6 54.2 46.6 43.7 40.7 25.0 11.4 25.0 dB
20 8.5 54.8 46.3 52.8 44.3 41.8 38.8 25.0 12.8 25.0 dB
31.25 10.7 51.9 41.1 49.9 39.1 37.9 34.9 23.6 16.1 23.3 dB
62.5 15.5 47.4 31.9 45.4 29.9 31.9 28.9 21.5 23.2 20.8 dB
100 19.9 44.3 24.4 42.3 22.4 27.8 24.8 20.1 29.9 19.0 dB
125 22.5 42.8 20.4 40.8 18.4 25.9 22.9 19.4 33.7 18.2 dB
155.52 25.3 41.4 16.1 39.4 14.1 24.0 21.0 18.8 38.0 17.4 dB
175 27.1 40.7 13.6 38.7 11.6 22.9 19.9 18.4 40.6 16.9 dB
200 29.1 39.8 10.6 37.8 8.6 21.8 18.8 18.0 43.7 16.4 dB
250 33.0 38.3 5.3 36.3 3.3 19.8 16.8 17.3 49.5 15.6 dB
Return loss for cable is currently specified on the basis of mean characteristic impedance (100 Ω ± 5 Ω) as well
Class E – 2002, Connecting Hardware (refer also to IEC 60603-7-7)

1 0.1 94.0 90.0 83.1 80.1 30.0 dB
4 0.1 82.0 78.0 71.1 68.1 30.0 dB
10 0.1 74.0 70.0 63.1 60.1 30.0 dB
16 0.1 69.9 65.9 59.0 56.0 30.0 dB
20 0.1 68.0 64.0 57.1 54.1 30.0 dB
31.25 0.1 64.1 60.1 53.2 50.2 30.0 dB
62.5 0.2 58.1 54.1 47.2 44.2 28.1 dB
100 0.2 54.0 50.0 43.1 40.1 24.0 dB
125 0.2 52.1 48.1 41.2 38.2 22.1 dB
155.52 0.2 50.2 46.2 39.3 36.3 20.2 dB
175 0.3 49.1 45.1 38.2 35.2 19.1 dB
200 0.3 48.0 44.0 37.1 34.1 18.0 dB
250 0.3 46.0 42.0 35.1 32.1 16.0 dB

17
December 9, 2002
ISO/IEC 11801-2002 Class E
Class E – 2002, Channel
(MHz) loss pp * pp ps * ps pp ps **
1 4.0 65.0 61.0 62.0 58.0 63.3 60.3 19.0 dB
4 4.2 63.0 58.9 60.5 56.4 51.2 48.2 19.0 dB
10 6.6 56.6 50.0 54.0 47.4 43.3 40.3 19.0 dB
16 8.3 53.2 44.9 50.6 42.3 39.2 36.2 18.0 dB
20 9.3 51.6 42.3 49.0 39.7 37.2 34.2 17.5 dB
31.25 11.7 48.4 36.7 45.7 34.0 33.4 30.4 16.5 dB
62.5 16.9 43.4 26.5 40.6 23.7 27.3 24.3 14.0 dB
100 21.7 39.9 18.2 37.1 15.4 23.3 20.3 12.0 dB
125 24.5 38.3 13.8 35.4 10.9 21.3 18.3 11.0 dB
155.52 27.6 36.7 9.0 33.8 6.1 19.4 16.4 10.1 dB
175 29.5 35.8 6.3 32.9 3.4 18.4 15.4 9.6 dB
200 31.7 34.8 3.1 31.9 0.1 17.2 14.2 9.0 dB
250 35.9 33.1 -2.8 30.2 -5.8 15.3 12.3 8.0 dB
Class E – 2002, Permanent Link (maximum implementation: 90 m, 3 connectors)

1 4.0 65.0 61.0 62.0 58.0 64.2 61.2 21.0 dB
4 4.0 64.1 60.1 61.8 57.8 52.1 49.1 21.0 dB
10 5.6 57.8 52.2 55.5 49.9 44.2 41.2 21.0 dB
16 7.1 54.6 47.5 52.2 45.1 40.1 37.1 20.0 dB
20 7.9 53.1 45.1 50.7 42.7 38.2 35.2 19.5 dB
31.25 10.0 50.0 40.0 47.5 37.6 34.3 31.3 19.0 dB
62.5 14.4 45.1 30.7 42.7 28.2 28.3 25.3 16.0 dB
100 18.5 41.8 23.3 39.3 20.8 24.2 21.2 14.0 dB
125 20.9 40.3 19.4 37.7 16.8 22.3 19.3 13.0 dB
155.52 23.6 38.7 15.2 36.1 12.6 20.4 17.4 12.1 dB
175 25.1 37.9 12.7 35.3 10.1 19.3 16.3 11.6 dB
200 27.1 36.9 9.9 34.3 7.2 18.2 15.2 11.0 dB
250 30.7 35.3 4.7 32.7 2.0 16.2 13.2 10.0 dB
Class E – 2002, CP Link (maximum implementation: 90 m, 2 connectors)

1 4.0 65.0 61.0 62.0 58.0 65.0 62.0 21.0 dB
4 4.0 64.1 58.1 61.8 57.8 53.2 50.2 21.0 dB
10 5.5 57.8 50.0 55.5 50.0 45.2 42.2 21.0 dB
16 7.0 54.6 45.0 52.2 45.2 41.2 38.2 20.0 dB
20 7.9 53.1 42.5 50.7 42.8 39.2 36.2 19.5 dB
31.25 9.9 50.0 37.2 47.5 37.6 35.3 32.3 18.5 dB
62.5 14.2 45.1 27.7 42.7 28.4 29.3 26.3 16.0 dB
100 18.3 41.8 20.0 39.3 21.0 25.2 22.2 14.0 dB
125 20.7 40.3 16.0 37.7 17.0 23.3 20.3 13.0 dB
155.52 23.3 38.7 11.7 36.1 12.8 21.4 18.4 12.1 dB
175 24.9 37.9 9.2 35.3 10.4 20.4 17.4 11.6 dB
200 26.8 36.9 6.3 34.3 7.5 19.2 16.2 11.0 dB
250 30.3 35.3 1.0 32.7 2.4 17.3 14.3 10.0 dB

18
December 9, 2002
ISO/IEC 11801-2002 Class F
Class F – 2002, Cable (refer also to IEC 61156-5 and IEC 61156-6)
Freq. Insertion NEXT ACR NEXT ACR ELFEXT ELFEXT Return Ins. Ret.
(MHz) loss pp pp ps ps pp ps Loss Loss Loss
(solid) (str.) (str.)
1 2.0 80.0 78.0 77.0 75.0 94.0 91.0 na 3.0 na dB
4 3.7 80.0 76.3 77.0 73.3 82.0 79.0 23.0 5.6 23.0 dB
10 5.9 80.0 74.1 77.0 71.1 74.0 71.0 25.0 8.8 25.0 dB
16 7.4 80.0 72.6 77.0 69.6 69.9 66.9 25.0 11.1 25.0 dB
20 8.3 80.0 71.7 77.0 68.7 68.0 65.0 25.0 12.4 25.0 dB
31.25 10.4 80.0 69.6 77.0 66.6 64.1 61.1 23.6 15.6 23.3 dB
62.5 14.9 75.5 60.6 72.5 57.6 58.1 55.1 21.5 22.3 20.8 dB
100 19.0 72.4 53.4 69.4 50.4 54.0 51.0 20.1 28.5 19.0 dB
125 21.4 70.9 49.6 67.9 46.6 52.1 49.1 19.4 32.1 18.2 dB
155.52 24.0 69.5 45.5 66.5 42.5 50.2 47.2 18.8 36.0 17.4 dB
175 25.6 68.8 43.2 65.8 40.2 49.1 46.1 18.4 38.4 16.9 dB
200 27.5 67.9 40.4 64.9 37.4 48.0 45.0 18.0 41.2 16.4 dB
250 31.0 66.4 35.5 63.4 32.5 46.0 43.0 17.3 46.5 15.6 dB
300 34.2 65.2 31.1 62.2 28.1 44.5 41.5 17.3 51.3 15.6 dB
450 42.7 62.6 19.9 59.6 16.9 40.9 37.9 17.3 64.0 15.6 dB
600 50.1 60.7 10.6 57.7 7.6 38.4 35.4 17.3 75.1 15.6 dB
Return loss for cable is currently specified on the basis of mean characteristic impedance (100 Ω ± 5 Ω as well
Class F – 2002, Connecting Hardware (refer also to IEC 60603-7-7 and IEC 61076-3-104)
1 0.1 80.0 77.0 90.0 87.0 30.0 dB
4 0.1 80.0 77.0 81.0 78.0 30.0 dB
10 0.1 80.0 77.0 75.0 72.0 30.0 dB
16 0.1 80.0 77.0 71.9 68.9 30.0 dB
20 0.1 80.0 77.0 70.5 67.5 30.0 dB
31.25 0.1 80.0 77.0 67.6 64.6 30.0 dB
62.5 0.2 75.5 72.5 63.1 60.1 30.0 dB
100 0.2 72.4 69.4 60.0 57.0 28.0 dB
125 0.2 70.9 67.9 58.5 55.5 26.1 dB
155.52 0.2 69.5 66.5 57.1 54.1 24.2 dB
175 0.3 68.8 65.8 56.4 53.4 23.1 dB
200 0.3 67.9 64.9 55.5 52.5 22.0 dB
250 0.3 66.4 63.4 54.0 51.0 20.0 dB
300 0.3 65.2 62.2 52.8 49.8 18.5 dB
450 0.4 62.6 59.6 50.2 47.2 14.9 dB
600 0.5 60.7 57.7 48.3 45.3 12.4 dB

19
December 9, 2002

Class F – 2002, Channel
(MHz) loss pp * pp ps * ps pp *** ps *** **
1 4.0 65.0 61.0 62.0 58.0 65.0 65.0 19.0 dB
4 4.1 65.0 60.9 62.0 57.9 65.0 64.2 19.0 dB
10 6.4 65.0 58.6 62.0 55.6 60.8 57.8 19.0 dB
16 8.1 65.0 56.9 62.0 53.9 57.5 54.5 18.0 dB
20 9.1 65.0 55.9 62.0 52.9 55.9 52.9 17.5 dB
31.25 11.4 65.0 53.6 62.0 50.6 52.8 49.8 16.5 dB
62.5 16.3 65.0 48.7 62.0 45.7 47.8 44.8 14.0 dB
100 20.8 62.9 42.1 59.9 39.1 44.4 41.4 12.0 dB
125 23.4 61.4 38.0 58.4 35.0 42.8 39.8 11.0 dB
155.52 26.2 60.0 33.8 57.0 30.8 41.2 38.2 10.1 dB
175 27.9 59.2 31.3 56.2 28.3 40.4 37.4 9.6 dB
200 30.0 58.3 28.4 55.3 25.4 39.4 36.4 9.0 dB
250 33.8 56.9 23.1 53.9 20.1 37.8 34.8 8.0 dB
300 37.3 55.7 18.4 52.7 15.4 36.4 33.4 8.0 dB
450 46.5 53.1 6.5 50.1 3.5 33.4 30.4 8.0 dB
600 54.6 51.2 -3.4 48.2 -6.4 31.3 28.3 8.0 dB
*** for FEXT values < 70 dB
Class F – 2002, Permanent Link (maximum implementation: 90 m, 3 connectors)

(MHz) loss pp * pp * ps * ps * pp *** ps *** **
1 4.0 65.0 61.0 62.0 58.0 65.0 62.0 21.0 dB
4 4.0 65.0 61.0 62.0 58.0 65.0 62.0 21.0 dB
10 5.5 65.0 59.5 62.0 56.5 62.7 59.7 21.0 dB
16 6.9 65.0 58.1 62.0 55.1 59.3 56.3 20.0 dB
20 7.7 65.0 57.3 62.0 54.3 57.7 54.7 19.5 dB
31.25 9.7 65.0 55.3 62.0 52.3 54.5 51.5 18.5 dB
62.5 13.9 65.0 51.1 62.0 48.1 49.5 46.5 16.0 dB
100 17.7 65.0 47.3 62.0 44.3 46.0 43.0 14.0 dB
125 19.9 64.9 45.0 61.9 42.0 44.4 41.4 13.0 dB
155.52 22.4 63.5 41.1 60.5 38.1 42.8 39.8 12.1 dB
175 23.8 62.7 38.9 59.7 35.9 41.9 38.9 11.6 dB
200 25.6 61.9 36.3 58.9 33.3 40.9 37.9 11.0 dB
250 28.8 60.4 31.6 57.4 28.6 39.2 36.2 10.0 dB
300 31.8 59.2 27.4 56.2 24.4 37.8 34.8 10.0 dB
450 39.7 56.6 16.9 53.6 13.9 34.8 31.8 10.0 dB
600 46.6 54.7 8.1 51.7 5.1 32.6 29.6 10.0 dB

20
December 9, 2002

Class F – 2002, CP Link (maximum implementation: 90 m, 2 connectors)
(MHz) loss pp * pp * ps * ps * pp *** ps *** **
1 4.0 65.0 61.0 62.0 58.0 65.0 62.0 21.0 dB
4 4.0 65.0 61.0 62.0 58.0 65.0 62.0 21.0 dB
10 5.4 65.0 59.6 62.0 56.6 65.0 62.0 21.0 dB
16 6.8 65.0 58.2 62.0 55.2 61.7 58.7 20.0 dB
20 7.6 65.0 57.4 62.0 54.4 60.0 57.0 19.5 dB
31.25 9.6 65.0 55.4 62.0 52.4 56.7 53.7 18.5 dB
62.5 13.7 65.0 51.3 62.0 48.3 51.5 48.5 16.0 dB
100 17.5 65.0 47.5 62.0 44.5 48.0 45.0 14.0 dB
125 19.7 64.9 45.2 61.9 42.2 46.3 43.3 13.0 dB
155.52 22.1 63.5 41.4 60.5 38.4 44.6 41.6 12.1 dB
175 23.5 62.7 39.2 59.7 36.2 43.7 40.7 11.6 dB
200 25.3 61.9 36.6 58.9 33.6 42.7 39.7 11.0 dB
250 28.5 60.4 31.9 57.4 28.9 40.9 37.9 10.0 dB
300 31.5 59.2 27.8 56.2 24.8 39.5 36.5 10.0 dB
450 39.3 56.6 17.3 53.6 14.3 36.4 33.4 10.0 dB
600 46.1 54.7 8.6 51.7 5.6 34.1 31.1 10.0 dB
ISO/IEC 11801-2002 Patch Cord requirements

Freq. ISO/IEC –2002 Cat 5 ISO/IEC –2002 Cat 6 ISO/IEC –2002 Cat 7
(MHz) (dB) (dB) (dB)
1m 2m 5m 10 m RL 1m 2m 5m 10 RL 1m 2m 5m 10 m RL
m
1 65.0 65.0 65.0 65.0 19.8 65.0 65.0 65.0 65.0 19.8 65.0 65.0 65.0 65.0 19.8
4 62.5 62.1 61.1 59.9 21.6 65.0 65.0 65.0 65.0 21.6 65.0 65.0 65.0 65.0 21.6
10 54.7 54.3 53.4 52.5 22.8 65.0 65.0 63.9 62.4 22.8 65.0 65.0 65.0 65.0 22.8
16 50.7 50.3 49.5 48.7 23.4 62.4 61.6 60.0 58.5 23.4 65.0 65.0 65.0 65.0 23.4
20 48.8 48.4 47.7 46.9 23.7 60.5 59.7 58.2 56.7 23.7 65.0 65.0 65.0 65.0 23.7
31.25 45.0 44.7 44.0 43.3 23.1 56.7 56.0 54.5 53.1 24.0 65.0 65.0 65.0 65.0 23.1
62.5 39.1 38.9 38.4 38.0 20.0 50.8 50.1 48.8 47.7 20.0 65.0 65.0 65.0 65.0 20.0
100 35.2 35.0 34.7 34.5 18.0 46.8 46.2 45.0 44.2 18.0 65.0 65.0 65.0 65.0 18.0
125 44.9 44.3 43.3 42.5 17.0 64.8 65.0 65.0 65.0 17.0
155.52 43.1 42.5 41.5 40.9 16.1 63.4 63.6 64.1 64.7 16.1
175 42.1 41.5 40.6 40.1 15.6 62.7 62.9 63.3 64.0 15.6
200 41.0 40.5 39.6 39.1 15.0 61.8 62.0 62.6 63.2 15.0
250 39.1 38.6 37.9 37.6 14.0 60.4 60.7 61.2 61.9 14.0
300 59.3 59.5 60.2 60.9 13.2
450 56.8 57.1 57.8 58.6 11.5
600 55.0 55.4 56.2 57.0 10.2

21
December 9, 2002
ISO/IEC 11801-2002 Propagation delay (Class D, E and F)
Freq Cable Connectors Channel Perm. Link CP link

(100 m) (90 m, (90 m,
3 connectors) 2 connectors)
1 570 2.5 580 521 518 ns
2 559 2.5 569 511 509 ns
4 552 2.5 562 504 502 ns
10 545 2.5 555 498 496 ns
16 543 2.5 553 496 494 ns
20 542 2.5 552 495 493 ns
100 538 2.5 548 491 489 ns
125 537 2.5 547 491 488 ns
200 537 2.5 547 490 488 ns
250 536 2.5 546 490 488 ns
600 535 2.5 545 489 487 ns
ISO/IEC 11801-2002 Delay Skew
All Cable Connectors Channel Perm. Link CP link

frequencies (100 m) (90 m, (90 m,
Class D 45 1.25 50 44 43 ns
Class E 45 1.25 50 44 43 ns
Class F 25 1.25 30 26 25 ns
ISO/IEC 11801-2002 DC resistance
All Cable Connectors Channel Perm. Link CP link

frequencies (100 m) (90 m, (90 m,
Class D, E, F 19 0.2 25 21 20.6 Ω

22
December 9, 2002

Class D - 2000, Cable
Frequency Insertion NEXT ACR NEXT ACR ELFEXT ELFEXT Return
(MHz) loss pp pp ps ps pp ps Loss
1 2.2 62.3 60.1 59.3 57.1 63.8 60.8 na dB
4 4.1 53.3 49.2 50.3 46.2 51.7 48.7 na dB
10 6.5 47.3 40.8 44.3 37.8 43.8 40.8 na dB
16 8.2 44.3 36.0 41.3 33.0 39.7 36.7 na dB
20 9.2 42.8 33.6 39.8 30.6 37.7 34.7 na dB
31.25 11.7 39.9 28.2 36.9 25.2 33.9 30.9 na dB
62.5 16.8 35.4 18.6 32.4 15.6 27.8 24.8 na dB
100 21.7 32.3 10.6 29.3 7.6 23.8 20.8 na dB
Class D - 2000, Connecting Hardware

Frequency Insertion NEXT ACR NEXT ACR ELFEXT ELFEXT Return
(MHz) loss pp pp ps ps pp ps Loss
1 0.0 80.1 77.1 75.1 72.1 26.0 dB
4 0.1 68.0 65.0 63.0 60.1 26.0 dB
10 0.1 60.1 57.1 55.1 52.1 26.0 dB
16 0.2 56.0 53.0 51.0 48.0 26.0 dB
20 0.2 54.1 51.1 49.1 46.1 26.0 dB
31.25 0.2 50.2 47.2 45.2 42.2 22.1 dB
62.5 0.3 44.2 41.2 39.2 36.2 16.1 dB
100 0.4 40.1 37.1 35.1 32.1 12.0 dB
Class D - 2000, Channel

Frequency Inserti NEXT ACR NEXT ACR ELFEXT ELFEXT Return
(MHz) on pp pp ps ps pp ps Loss
loss
1 4.0 60.0 56.0 57.0 53.0 57.0 54.4 17.0 dB
4 4.6 50.6 46.0 47.6 43.0 45.0 42.4 17.0 dB
10 7.2 44.0 36.8 41.0 33.8 37.0 34.4 17.0 dB
16 9.1 40.6 31.5 37.6 28.5 32.9 30.3 17.0 dB
20 10.2 39.0 28.8 36.0 25.8 31.0 28.4 17.0 dB
31.25 12.9 35.7 22.8 32.7 19.8 27.1 24.5 15.1 dB
62.5 18.6 30.6 12.0 27.6 9.0 21.1 18.5 12.1 dB
100 24.0 27.1 3.1 24.1 0.1 17.0 14.4 10.0 dB
Class D - 2000, Permanent Link

Frequency Inserti NEXT ACR NEXT ACR ELFEXT ELFEXT Return
(MHz) on pp pp ps ps pp ps Loss
loss
1 4.0 60.0 56.0 57.0 53.0 59.6 57.0 17.0 dB
4 4.0 51.8 47.8 48.8 47.8 47.6 45.0 17.0 dB
10 6.1 45.5 39.4 42.5 39.5 39.6 37.0 17.0 dB
16 7.7 42.3 34.5 39.3 34.5 35.5 32.9 17.0 dB
20 8.7 40.7 32.0 37.7 32.0 33.6 31.0 17.0 dB
31.25 10.9 37.6 26.6 34.6 26.6 29.7 27.1 15.6 dB
62.5 15.8 32.7 16.9 29.7 16.8 23.7 21.1 13.5 dB
100 20.3 29.3 9.0 26.3 8.9 19.6 17.0 12.1 dB
Notes:
Limits are based on computed values from formulas in the overview. Small deviations occur with the table
values in ISO/IEC 11801 for insertion loss and NEXT loss for the existing Class D – 1995/2000 limits.

23

Iso-Iec 11801

Uploaded by

Copyright:

Available Formats

Iso-Iec 11801

Uploaded by

Document Information

Original Title

Copyright

Available Formats

Share this document

Share or Embed Document

Sharing Options

Did you find this document useful?

Is this content inappropriate?

Copyright:

Available Formats

Iso-Iec 11801

Uploaded by

Copyright:

Available Formats

Overview Performance Specifications for

ISO/IEC 11801 Class D, Class E and Class F Cabling

This is an expert contribution, which is NOT endorsed by the

ANY COMMENTS ON THIS DOCUMENT AND POSSIBLE CORRECTIONS ARE

This document contains table values at key frequencies starting on

Overview ISO/IEC Requirement Specifications Fluke Networks

Overview ISO/IEC Requirement Specifications Fluke Networks

Horizontal link length equations

General restrictions backbone link lengths

Backbone link length equations

Overview ISO/IEC Requirement Specifications Fluke Networks

250 MHz 30.7 dB 28.8 dB

250 MHz 30.3 dB 28.5 dB

Overview ISO/IEC Requirement Specifications Fluke Networks

Additional crosstalk requirements for hybrid cable

Overview ISO/IEC Requirement Specifications Fluke Networks

Overview ISO/IEC Requirement Specifications Fluke Networks

Overview ISO/IEC Requirement Specifications Fluke Networks

Parameter Class D-2000 Class D-2002 Class E Class F

Overview ISO/IEC Requirement Specifications Fluke Networks

100 MHz PP 35.1 dB 35.1 dB 43.1 dB 60.0 dB

Overview ISO/IEC Requirement Specifications Fluke Networks

Parameter Class D-2000 Class D-2002 Class E Class F

100 MHz PP 17.0 dB 17.4 dB 23.3 dB 44.4 dB

250 MHz PP 17.3 dB 40.9 dB

250 MHz PS 14.3 dB 37.9 dB

Overview ISO/IEC Requirement Specifications Fluke Networks

Parameter Class D-2000 Class D-2002 Class E Class F

100 MHz–250 MHz 64 − 20 log( f ) 68 − 20 log( f )

Overview ISO/IEC Requirement Specifications Fluke Networks

Overview ISO/IEC Requirement Specifications Fluke Networks

Overview ISO/IEC Requirement Specifications Fluke Networks

Overview Requirement Specifications DC Loop Resistance

Overview ISO/IEC Requirement Specifications Fluke Networks

Overview Requirement Specifications DC power supply

Parameter Class D-2000 Class D-2002 Class E Class F

Overview unbalance attenuation (LCL)

Parameter Class D-2000 Class D-2002 Class E Class F

Overview ISO/IEC Requirement Specifications Fluke Networks

ISO/IEC 11801-2002 Class D

Class D – 2002, Connecting Hardware (refer also to IEC 60603-7-7)

Class D – 2002, Channel

Class D – 2002, Permanent Link (maximum implementation: 90 m, 3 connectors)

Overview ISO/IEC Requirement Specifications Fluke Networks

ISO/IEC 11801-2002 Class D

Class D – 2002, CP link (maximum implementation: 90 m, 2 connectors)

ISO/IEC 11801-2002 Class E

Class E – 2002, Connecting Hardware (refer also to IEC 60603-7-7)

Overview ISO/IEC Requirement Specifications Fluke Networks

Class E – 2002, Permanent Link (maximum implementation: 90 m, 3 connectors)

Class E – 2002, CP Link (maximum implementation: 90 m, 2 connectors)

Overview ISO/IEC Requirement Specifications Fluke Networks

ISO/IEC 11801-2002 Class F

Overview ISO/IEC Requirement Specifications Fluke Networks

ISO/IEC 11801-2002 Class F

Class F – 2002, Permanent Link (maximum implementation: 90 m, 3 connectors)

Overview ISO/IEC Requirement Specifications Fluke Networks

ISO/IEC 11801-2002 Class F

ISO/IEC 11801-2002 Patch Cord requirements