User's Manual

APPENDIX B
INTERFACE PORTS
Revised: 4 Feb 14 APX B-3 EST P/N AA107-195CM
RS-485 and RS-422 Data Ports (Ports 1 and 2)
The ESTeem Model 195C/M have a single, two-wire RS-485 interface in Port 1 and a single, four-wire RS-422 interface in Port 2.
To ease access to these ports the AA066 (Figure 3) cable adapter is available. The RJ-45 interface can be inserted into either Port
1 (RS-485) or Port 2 (RS-422) and the corresponding signal lines (Figure 1) can be inserted in the screw terminals.
Note: Verify the screw terminal cover is attached to the cable before termination.
4/20mA Sensor Inputs (Port 1)
Figure 3: AA066 Cable Adapter
The ESTeem
Model 195C/M have four independent 4/20mA inputs sensors that can be read through either ModbusTCP protocol
(See Chapter 6) or through the “sread” software command from a serial port. For detailed information on scaling or modifications
to sensor reading, please contact ESTeem customer support at 509-735-9092.