User manual

Duplex Multiplexers User Manual Page 11
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Videoswitch VCM614d.doc
3.5 Interface Connector Pin-out (25-way D-type)
All connections to the alarm inputs and outputs and the VCR step input are made via a 25-way D-
type connector on the rear panel of the multiplexer. A suitable mating connector (male) is provided.
This diagram shows the layout of the pins on the 25-way D-type (female) connector on the rear
panel:
Pin Function
1 Ground
2 Alarm 15
3 Alarm 17
4 Alarm 19
5 Alarm 9
6 Alarm 11
7 Alarm 13
8 Alarm 1
9 Alarm 3
10 Alarm 5
11 Alarm 7
12 Relay N/O
13 Relay N/C
14 Step Cable Input (connect to VCR “SW-OUT”)
15 Alarm 16
16 Alarm 18
17 Alarm 20
18 Alarm 10
19 Alarm 12
20 Alarm 14
21 Alarm 2
22 Alarm 4
23 Alarm 6
24 Alarm 8
25 Relay Common
3.6 RS232 Connector Pin-out (3.5mm Jack)
The multiplexer may be controlled remotely via the RS232 connector (this facility is not currently
available on the 4 and 8 cameras models). A separate manual is available on request which gives
details the command set.