Clary DT Series ET - Manual (Page 12)

T H E C O N T I N U O U S P O W E R C O M P A N Y
Page 12
SIGNALS AND INTERFACING
here are two DB-9, subminiature, female
connectors. These are provided for
communications links to a computer or
sophisticated monitoring device.
SIGNAL provides open collector type contact
closures that typically signal Utility Interrupt, Low
Battery and Inverter Active conditions. A system
shutdown feature is also available on this port. By
shorting pin 6 to pin 7 will cause the system to
shutdown in battery mode. This conserves the
battery life once an orderly shutdown has been
accomplished. The system may be configured to
shutdown by applying a +5 to +12V signal across
the appropriate pins. Contact the factory for
configuration details.
RS232 is a true communications signal port.
Below is the pin out of the two connectors with their
default assignments:
OPEN-COLLECTOR CONNECTOR (SIGNAL)
2- UTILITY INTERRUPTED SIGNAL
3- INVERTER ACTIVE SIGNAL
4- COMMON SIGNAL RETURN
5- LOW BATTERY SIGNAL
6- + UPS SHUTDOWN
7- - UPS SHUTDOWN
RS232 CONNECTOR
2- TRANSMITTING DATA (TX)
3- RECEIVING DATA (RX)
6 & 8- DATA SET READY
5- SIGNAL GROUND
T
(Programmable:
0 to 4Hr 15 Min 10 S)
DB-9F
-
+
5 1
INVERTER ACTIVE
LOW BATTERY
UTILITY INTERRUPTED
SIGNAL: OPEN-COLLECTOR CONNECTOR RS232: COMPUTER
CONNECTOR
SYSTEM
SHUTDOWN
6 9
DSR
GND
5 3
TX
RX
2
6 8
DB-9F