User's Manual

C-5000 COMMUNICATION MANAGEMENT CONTROLLER
INSTALLATION MANUAL
Page 4-18 Publication No. 150-041118
Section 4 – Electrical Installation Rev C
May 2006
Note: Verify that the C-5000 Serial RT Card is installed for this interface.
Pin(s) - Signal Name
1 - DIGITAL SHIELD
Shield ground connection for RS-422 CONTROL TX H and CONTROL TX L
lines. Normally not used.
2 – RS-422 CTRL TX LO
This pin is the active low sense serial data output and meets EIA RS-485 voltage
levels. The data from this output must be connected to the RT-5000 input pin
RS-422 CTRL RX LO (pin L).
3 - ON/OFF
When this output is pulled to ground, the power supply in the RT-5000 is enabled
and the transceiver will turn on. This must be connected to pin W of the
RT-5000.
4 – RS-422 CTRL TX HI
This pin is the active high sense serial data output and meets EIA RS-485
voltage levels. The data from this output must be connected to the RT-5000
input pin RS-422 CTRL RX HI (pin M).
5 – RS-422 CTRL RX LO
This pin is the active low sense serial data input and meets EIA RS-485 voltage
levels. This input must be connected to the RT-5000 output pin RS-422 CTRL
TX LO (pin K).
6 – SPARE
Spare pin.
7 - IN SPARE #1
Spare input pin.
8 – RS-422 CTRL RX HI
This pin is the active high sense serial data input and meets EIA RS-485 voltage
levels. This input must be connected to the RT-5000 RS-422 output pin CTRL
TX HI (pin k).
9 – SPARE
Spare pin.