Tescom T-300P Series, User Manual, Page: 42 / 45

38
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 events are:
•
LINE FAILURE
•
BATTERY LOW
•
LOAD ON BYPASS
•
BATTERY CB input
•
BATTERY CB output
•
EMERGENCY STOP input
ATTENTION: Max. 42VAC or 60VDC voltage should be applied to the dry contact outputs.
7.5 Remote Monitoring Panel
Remote monitoring panel can be used from 400 meters away from UPS. Up to 25 meters there is no need extra
hardware RS232 communication is okay. But if 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 By-Pass
Relay