Dräger RAB 7000 Notice D'utilisation page 27

Connection between remote access box and gas transmitter:
 Connect terminal "+24 V" to the DC power supply on the gas
transmitter (red connection lead on the transmitter).
 Connect terminal "ICOM" to the serial interface of the gas
transmitter (white connection lead on the transmitter).
 After completing the electrical installation, reassemble the housing cover of the remote access box.
+24 V
0 V
4-20 mA
0 mA
 Connect terminal "0 V" to the common reference potential (GND)
of the gas transmitter (black connection lead on the transmitter).
 Check the electrical installation to ensure that all conductors are
correctly connected.
OK
M
Power supply
Central
controller
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