Powerware 5115 RM User Manual download pdf (Page 42)

Communication

Powerware

5115 Rack-Mount User’s Guide : 164201449 Rev A www.powerware.com

Communication Port

To establish communication between the UPS and a computer, connect

your computer to the UPS communication port using the supplied

communication cable.

When the communication cable is installed, power management

software can exchange data with the UPS. The software polls the UPS for

detailed information on the status of the power environment. If a power

emergency occurs, the software initiates the saving of all data and an

orderly shutdown of the equipment.

The cable pins are identified in Figure 1 9 and the pin functions are

described in Table 2.

245

Figure 19. Communication Port

Table 2. Communication Port Pin Assignment

Number

Signal Name Function Direction

from the UPS

1 Low Batt Low Battery relay contact; 20 mA, 30 Vdc

contact rating

Out

2 TxD Transmit to external device Out

3 RxD Receive from external device In

4 DTR PnP (Plug and Play) from external device (tied

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

rating

Out

9 Power Source +V (8 to 24 volts DC power) Out

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 57 58

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Powerware 5115 RM User Manual Page 42