Figure 12‐2. port 2 (db‐25) – Powerware 9315 User Manual
Page 88
COMMUNICATION
EATON Powerware
®
9315 UPS (500–750 kVA) Installation and Operation Manual
S 164201244 Rev E www.powerware.com
12-2
13
12
10
11
9
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
RS‐232 DTR
NOT USED
–12V
NOT USED
NOT USED
NOT USED
23
21
19
17
15
1
5
4
3
2
GND
RS‐232 TXD
RS‐232 RXD
RS‐232 RTS
RS‐232 CTS
6
8
7
RS‐232 DSR
RTN
+12V
NOT USED
NOT USED
NOT USED
NOT USED
NOT USED
24
22
25
20
18
16
14
Figure 12‐2. Port 2 (DB‐25)
Table 12‐2. Pin Assignments for Port 2 (DB‐25)
Pin Number
Symbol
Function
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.