GAI-Tronics 378-002 Monitored Input Module (MIM) Station - Manual (Page 5)

Pub. 42004-490A
Model 378-002 Monitored Input Module Station Page 5 of 10
f:\standard ioms - current release\42004 instr. manuals\42004-490a.doc
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Mode 1: IDC Line Supervision Multiple Switch
In this mode any number of normally-open dry contact closures may be installed on the line. The loop is
monitored for ground faults and open circuits in Mode 1. The end-of-line device is a 20 k
, 5% tolerance
resistor.
Figure 2. IDC Line Supervision Multiple Switch
N OTE : The 20 k
, 5% tolerance resistor is not included with the MIM. This resistor is included in a kit
(12509-003), which must be ordered separately.