System 57 Quick Start Guide
05701-M-5026 MAN0839 Issue 1
Transmitters powered from the 5701 Control Card require either three or four wire
connections and the detector documentation will indicate the 0V and +24V power
connections and the positive and negative loop connections.
At the System 57 end of the field cable the detector wires should be connected to the S, 01,
NS, 0V or 24V terminals on the Field Interface or Relay Card that is attached to the required
Single Channel Display Card. The exact terminals used vary depending upon whether three
or four wire topology is used, and the requirement for loop current source or sink
configuration. The Schematics below detail the connections for 3 wire current sink or source
transmitters. For other schematics (including isolated and barrier) refer to operating manual
05701-M-5001.
8.4.1 3 Wire Source Transmitter (sink card)
NS
S
01
4-20mA
29
+24V
28
27
Transmitter
0V
5701 Interface Card
Sensor Drive
Module Link
Positions 12, 10,
7 & 3
8.4.2 3 Wire Sink Transmitter (source card)
NS
S
01
4-20mA
29
+24V
28
27
Transmitter
0V
5701 Interface Card
Sensor Drive
Module Link
Positions 12, 9,
6, 3 & 1.
11