Serial Communications; Serial Cable - Emerson GXT5000R-208 User Manual

The UPStationGXT5000R-208 has a DB-9 serial port male connector on the rear of the unit.
Contact closure signals are not provided on this connector. Serial signals are provided on this
port and are assigned as follows:
PIN
1,4,6,7,8,9 Do not connect
2 UPS RxD (typical RS-232 levels)
3 UPS TxD (typical RS-232 levels)
5 Common
This port is not directly compatible with the Liebert M3LS9P9S serial communication cable
supplied with the UPS. A DB-9 adapter must be used to provide a standard Liebert UPS com-
munication port.
A DB-9 adapter is included in the UPS accessory box. Attach the adapter to the UPS using the
captive screws.
FEMALE
Connects to UPS
The DB-9 adapter will redirect the communication signals and provide a female DB-9 commu-
nication port suitable for connection to the Liebert M3LS9P9S serial communication.

Serial Cable

Connect the DB-9 adapter to your computer serial port using the Liebert M3LS9P9S serial
communication cable.
M3LS9P9S Cable - 9 Pin UPS to 9 Pin Serial Port for Serial Communications
Connects to DB-9 Signal Converter

SERIAL COMMUNICATIONS

DESCRIPTION
REAR PANEL MALE DB-9
DB-9 Adapter
2
3
5
MALE
2
3
5
FEMALE
2
3
5
Connects to Serial Cable
FEMALE
2
3
5
Connects to Computer Serial Port
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