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7.3.5 DUMB Modem – UPS Connection Cable
The connection cable between dumb modem and UPS is as followed:
UPS
DB9 female
MODEM
DB25 male
6 3
7 7
9 2
7.4 Dry Contact Interface Connection
Some important events can be monitored by this connection for each event a relay is located on
interface board and NC-C-NO contacts are connected terminals.
These are:
• LINE FAILURE
• BATTERY LOW
• LOAD ON BYPASS
• BATTERY CB input
• BATTERY CB output
• EMERGENCY STOP input
7.5 Remote Monitoring Panel
Remote mınitoring panel can be used from 400 meters away from UPS. Up to 25 meters there is no
need extra hardware RS232 communication is normal. But if the distance is longer than 25 meters
extra RS485 hardware is needed.
Up to 5 remote monitoring panels can be used in system.
CN3
CN4
Battery Circuit
Breaker Input
Emergency Stop
Line Failure
Relay
Battery Low Relay
or Common Alarm
Relay
By-Pa
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