Liebert GXT2-6000 RT208 user manual Communications Interface Port, 11.1.1 DB-9 Interface Port

Communications

11.0COMMUNICATIONS

11.1Communications Interface Port

The UPStation GXT2-6000RT208 UPS has a standard DB-9 serial port female connector located on the rear of the UPS unit. Several signals are provided on this port and are assigned as follows:

Table 3 DB-9 pin assignment

DB-9 Assignment Description

Pin

1Low Battery (open collector)

2UPS TxD (typically RS-232 levels)

3 UPS RxD (typically RS-232 levels)

4 Remote Shutdown (5-12VDC, 10-24mA max; battery operation)

5Common

6Remote Shutdown (short to pin 5); all modes of operation

7 Low Battery (open emitter)

8 Utility Fail (open emitter)

9 Utility Fail (open collector)

	Pin Assignment				Collector to Emitter*
	6	7	8	9	(+)	Open
						Collector
					330 Ohms
					(-)	Open
1	2		3	4	5	Emitter

* Maximum voltage and current on pins 1, 7, 7 and 9 are 60VDC and 10.0 mA

11.1.1DB-9 Interface Port

Using the following directions to attach the smaller enclosed ferrite bead clamp to the communication cable as shown at right:

1.Open the ferrite bead.

2.Place the communication cable inside the ferrite bead groove.

3.Position the ferrite bead as close as possible to the end of the cable that connects to the DB-9 connector of the UPS.

4.Close the ferrite bead so that the ferrite bead’s case snaps closed with the cable routed through the ferrite bead’s case.

Run cable through ferrite bead case

11.1.2Communications SNMP Web Card SNMP Adapter

Attach the larger enclosed ferrite bead clamp to the network cable, see illustration at right, using the following directions:

1.Open the ferrite bead.

2.Place the network cable inside the ferrite bead groove.

3.Wrap the cable once around the ferrite bead.

4.Position the ferrite cable as close as possible to the end of the cable that connects to the UPS.

5.Close the ferrite bead so that the ferrite bead’s case snaps

closed with the cable routed through the ferrite bead’s case. Wrap network

cable around ferrite bead

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