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Powerware 9315 Parallel Capacity/Redundant System with PHP SSBM
164201373 Rev. A 092402
3
2
1
6
5
4
9
8
7
12
11
10
13
15
14
18
17
16
21
20
19
24
23
22
25
GND
RS232 TXD
RS232 RXD
RS232 R TS
RS232 CTS
RS232 DSR
RTN
+12V
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
RS232 DTR
NOT USED
--12V
NOT USED
NOT USED
NOT USED
PORT 2 (DB--25)
Figure 13---2. P ort 2 Pin Assignments
Ta b l e 1 3 --- 2 . P i n A s s i g n m e n t s fo r P o r t 2 ( D B --- 2 5 )
Pin # Symbol Description Comments
1 GND Chassis Ground
2 TXD Transmit Data Input to UPS
3 RXD Receive Data Output from UPS
4 RTS Request to Send Input to UPS
5 CTS Clear to Send Output from UPS
6 DSR Data Set Ready Output from UPS
7 RTN Return
8 +12V +12 volts Output from UPS --- always true
20 DTR Data Terminal Ready Input to UPS --- typically not used by UPS
22 --- 12V --- 12 volts Output from UPS --- always true
NOTE: Pins 5 and 6 are tied together internally.