Emerson SL-31091 User Manual
LIEBERT MULTILINK™ CABLE ADAPTER KIT
(IRACKMLADPT)
Installation Instructions
Description
The Liebert MultiLink Cable Adapter Kit has two adapters designed for cable connections from a MultiLink
computer to a UPS or to a multiplexer such as the IntelliRack. These DB9-to-RJ45 adapters are used at
either end of an RJ45 straight-through cable, as described in these instructions.
This kit has the following components:
• DB9M - RJ45F adapter, part number ML-ADP-03
• DB9F - RJ45F adapter, part number ML-ADP-04
These instructions describe how to connect the adapters and an RJ45 cable. Step 3 also provides information
to make a longer RJ45 cable, if needed.
NOTE
Liebert recommends—although it is not required—powering down your system and UPS before
continuing with the following cable installation.
Connecting Adapters
1. Connect the adapter labeled ML-ADP-04
to the serial communication port on the
MultiLink computer.
2. Connect the other adapter (ML-ADP-03)
as follows, depending on your system
configuration:
To a multiplexer such as the IntelliRack:
Connect the ML-ADP-03 adapter to a
connector on the MultiPort 4 molded
cable assembly.
To a UPS with a DB9 port:
Connect the ML-ADP-03 adapter to the
DB9 communication interface on the
UPS.
3. Connect an RJ45 straight-through cable
between the two adapters. The cable must
be an 8-conductor wire. The pinout for
this cable is:
RJ45 male RJ45 male
1 ——————— 1
2 ——————— 2
3 ——————— 3
4 ——————— 4
5 ——————— 5
6 ——————— 6
7 ——————— 7
8 ——————— 8
STEP 1
ML-ADP-04
to serial port
on MultiLink
computer
IntelliRack
MultiPort 4 molded
cable assembly
STEP 2
ML-ADP-03 to MultiPort 4
(or to UPS)
STEP 3
RJ45 cable
between adapters
MultiPort4
1234
SL-31091 Installation Instructions page 1 12/03 (Rev. 0)
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