Emerson SL-31091 Fascicule

L

IEBERT

 M

ULTI

L

INK

™ C

ABLE

 A

DAPTER

 K

IT

 

(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.

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 Intel-

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:

NOTE
Liebert recommends—although it is not required—powering down your system and UPS before 

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MultiPort4