Clary Corporation DT1000R, Owner'S Manual

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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