DG1/DG2 for external chime control
Dry contact (NO) when bell is ringing (factory setting)
Current output to drive external device
11
12
13
Terminals for door strike.
Terminals to main monitor (no polarity).
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CON3
CON2
DR4
DR3
DR2
DR1
3.2. EX-900H
Connect to a N.C. magnetic switch sensor for door status detection.
Terminals for power adapter.
Terminals for next monitor (w/polarity).
Terminals from previous monitor (w/polarity).
1
2
3
4
