Rockwell Automation 1609-SDC1 Dry Contact Communication Cable User Manual
Rockwell Automation Equipment
 
To
1609-S UPS
To PLC I/O module
Female
990-3012 revision 1 9/06
41063-312-01(2)
The 1609-SDC1 is a DB-9 to dry contact communication cable. This cable is designed to provide UPS status (UPS 
on battery and UPS low battery only) to a PLC. The cable is not intended for any other application, and use of the 
cable for unsupported applications could result in erratic UPS behavior. The DB-9 connector must be attached to 
the 1609-S serial port. The second end provides the signal wires for direct connection to a PLC I/O module. 
Pin Definitions 
OBAT (Brown) - On Battery Signal. Contact closes when UPS goes to battery power. 
GND (Red) - Common, to be used with OBAT signal. 
LBAT (Orange) - Low Battery Signal. Contact closes when UPS has low battery condition. 
GND (Black) - Common, to be used with LBAT signal. 
Shell (No insulation) - No connection required. Can be used to ground cable common to PLC common.
1609-SDC1 Dry Contact Communication Cable
 
Installation Guide