Additional UPS Features

Table 2. Communication Port Pin Assignment

Pin

Signal Name

Function

Direction

Number

 

 

from the UPS

 

 

 

 

1

Low Batt

Low Battery relay contact; 20 mA, 30 Vdc

Out

 

 

contact rating

 

 

 

 

 

2

RxD

Transmit to external device

Out

 

 

 

 

3

TxD

Receive from external device

In

 

 

 

 

4

DTR

PnP (Plug and Play) from external device (tied

In

 

 

to Pin 6)

 

 

 

 

 

5

GND

Signal common (tied to chassis)

—

 

 

 

 

6

DSR

To external device (tied to Pin 4)

Out

 

 

 

 

7

—

No Connection

—

 

 

 

 

8

AC Fail

AC Fail relay contact; 20 mA, 30 Vdc contact

Out

 

 

rating

 

 

 

 

 

9

Power Source

+V (8 to 24 volts DC power)

Out

 

 

 

 

Network Transient Protector

The Network Transient Protector, shown in Figure 14, is located on the rear panel and has jacks labeled IN and OUT. This feature accommodates a single RJ-45 (10BaseT) network connector.

Low voltage models can also accommodate an RJ-11 telephone connector that provides protection for modems, fax machines, or other telecommunications equipment. As with most modem equipment, it is not advisable to use this jack in digital PBX (Private Branch Exchange) environments.

Connect the input connector of the equipment you are protecting to the jack labeled IN. Connect the output connector to the jack labeled OUT.

OUTIN

OUT

IN

NETWORK TRANSIENT PROTECTOR

Figure 14. Network Transient Protector

Powerware® 5115 User’s Guide S www.powerware.com

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