RET MDCU Module PDF
RET MDCU Module PDF
RET MDCU Module PDF
MDCU Module
RET Actuator | Multi-Device Control Unit for Single Band or Multi-Band Antennas
• Plug-in module for the remote control of the electrical downtilt of antennas with internal tilt motors
• New version (hardware V4), replacement for MDCU-x0001, MDCU-x0002 and MDCU-x0003 (x = A or G)
• Able to be set to different protocols: AISG 1.1 or 3GPP/AISG 2.0 or Ericsson proprietary protocol
• Does not protrude from the bottom of the antenna
• Easy to install thanks to the captive screws
Description
The MDCU (Multiple Device Control Unit) is the electronic module that allows the remote control of
the electrical downtilt (RET) in Amphenol antennas with factory embedded motors. For a multiband
antenna, whatever the number of the independent variable tilt controls (usually one per band), only
one MDCU module is installed. It behaves as if separate RET control units were fitted for each band
of the antenna and daisy-chained together.
The MDCU is fully inserted inside the bottom of the antenna and leaves more room for spacing between co-
axial connectors. For all Amphenol internal RET systems, when an MDCU module is installed in an antenna,
all the tilt indicators remain visible and manual change of the tilt is still possible (manual override, the control-
ler will read the new tilt setting).
The module has one male AISG connector, which is the control access, and one female AISG connector to
allow the link of a seperate RET antenna in daisy-chain.
Technical Data
Male AISG 8-pin connectors (type IEC60130-9) for control data and
Input Control Port
power supply of the unit
Female AISG 8-pin connector (type IEC60130-9). All the 8 pins are
Daisy Chain Port
wired to the corresponding pins of the input control port.
+12V (pin 1) or +24V (pin 6) DC.
Power Supply If both voltages are supplied, the unit is powered by the 24V line.
Compatible with 10V...30V on pin 6 and on pin 1.
Data Lines / Data Rate RS485 / 9.6 kbps for AISG, 115 kbps for Ericsson protocol
Precision ± 0.5°
Quoted performance parameters are provided to offer typical or range values only and may vary as a result of normal manufacturing and operational conditions. Extreme operational
conditions and/or stress on structural supports is beyond our control. Such conditions may result in damage to this product. Improvements to product may be made without notice.
REV051415O www.amphenol-antennas.com 1 of 3
RET Control Units
MDCU Module
RET Actuator | Multi-Device Control Unit for Single Band or Multi-Band Antennas
Technical Data
Dimensions (approximate) Depth: 75 mm (3.0 in) Width: 80 mm (3.1 in) Height: 18 mm (0.7 in)
Weight (approximate) 280 g (0.6 lbs)
-40°C to +60°C (-40°F to +140°F) operating with tilt change (motor operation), no icing
Temperature Range
-40°C to +70°C (-40°F to +158°F) operating stand-by (no motor actuation) or storage
The unit is a plug-in module that is installed inside the antenna. There is no specific IP rating that applies
IP Rating
to it.
The unit is fitted inside the antenna and secured with captive screws. Before inserting the unit inside
Installation the antenna, there is no need or prior positioning of either the unit or the antenna tilt mechanism to a
dedicated position. A spare or retrofit unit will need to be loaded with configuration data.
Part Numbering
An MDCU can be factory set to any protocol and can be factory set to drive any combination of the motors found in the antenna.
The MDCU part number is built as follows:
MDCU-pxxxxx
MDCU-G0000
Standard unit. Basic part number that is referred to in the antenna data sheet
MDCU-A0000
Additional coding values will be defined when necessary. Please contact us for uncovered needs.
Quoted performance parameters are provided to offer typical or range values only and may vary as a result of normal manufacturing and operational conditions. Extreme operational
conditions and/or stress on structural supports is beyond our control. Such conditions may result in damage to this product. Improvements to product may be made without notice.
REV051415O www.amphenol-antennas.com 2 of 3
RET Control Units
MDCU Module
RET Actuator | Multi-Device Control Unit for Single Band or Multi-Band Antennas
“RET-Ready” Antennas
Thanks to the small size and its installation inside the antenna, Amphenol can deliver antennas with the
MDCU already installed and pre-commissioned to fit all antenna parameters. Every RET device is factory
configured and calibrated, and informative data like antenna model number and serial number is factory
loaded.
The antenna is ready to be used upon delivery to a site. There is no need for further installation of the RET
devices nor for programming the configuration or for running a calibration process. RET-Ready
This is what we refer to as “RET-Ready” Antennas.
Antennas
In addition, each RET ID (Serial Number) will use the first (most left) character to indicate the colour of the
corresponding frequency band of the antenna. This helps greatly during site commissioning by the ease it
provides to distinguish between the RET devices shown by the AISG controller in the device list.
Note: When delivered as spare or retrofit units, an MDCU will have a letter Z instead
of the colour coding letter as the first (most left) character of its RET ID (Serial Number).
Such spare or retrofit units will also not be configured to any antenna unless the purchase
order specifically asks for it. It will need the usual upload of a configuration file before
the first operation.
Please keep in mind that with the Ericsson protocol it is not possible to send a
configuration file to the RET unit; the MDCU has to be factory set to an antenna type
before delivery.
Quoted performance parameters are provided to offer typical or range values only and may vary as a result of normal manufacturing and operational conditions. Extreme operational
conditions and/or stress on structural supports is beyond our control. Such conditions may result in damage to this product. Improvements to product may be made without notice.
REV051415O www.amphenol-antennas.com 3 of 3