Eaton Powerware 5125 User Manual page 49

Table 2. Communication Port Pin Assignment
Pin Number Signal Name
1 Low Batt
2 TxD
3 RxD
4 DTR
5 GND
6 DSR
7 RTS
8 AC Fail
9 Power Source
The On-Bypass Relay Contact. You can enable the On-Bypass relay using
the jumper on the Single-Port Card. The jumper default is disabled.
To enable the On-Bypass relay:
1.
2.
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EATON Powerware 5125 Two-in-One UPS (2400/3000 VA) User's Guide
Function
Low Battery relay contact; 20 mA, 30 Vdc contact rating
Transmit to external device
Receive from external device
PnP (Plug and Play) from external device (tied to Pin 6)
Signal common (tied to chassis)
To external device (tied to Pin 4)
PnP from external device (default) or On Bypass relay
contact (jumper-selectable)
AC Fail relay contact; 20 mA, 30 Vdc contact rating
+V (8 to 24 volts DC power)
Remove the Single-Port Card on the UPS rear panel. Retain the
screws (see Figure 26).
Figure 26. Removing the Single-Port Card
Move the J3 jumper to the AS/400
On-Bypass relay as shown in Figure 27.
ADDITIONAL UPS FEATURES
Direction from the UPS
Out
Out
In
In
—
Out
In / Out
Out
Out
position to enable the
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ware.com
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