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3.4.1.2 MS Connector Pinouts (24 Vac)
MS Connector
Pin
Function
J
I/O 1
P
I/O 2
U
Alarm I/O Common
M
RS422 RX+
N
RS422 RX-
S
RS422 TX+
R
RS422 TX-
L
Analog Video Output
A
Analog Video Shield
G
Overall Shield
D
Ethernet TX+
E
Ethernet TX-
F
Ethernet RX+
H
Ethernet RX-
B
24 Vac Hi
T
Not Connected
C
24 Vac Low
K
Not Connected
3.4.2 Inputs/Outputs
Inputs
The Inputs can be configured to initiate an event either when a contact closure between an Input and Alarm
Common is detected or when an open circuit between an Input and Alarm Common is detected.
Caution: Do not connect a power source to the inputs.
l
Connect pins J and P on the MS connector to Inputs 1 and 2, respectively. A contact closure between
Inputs and Alarm I/O Common (MS connector pin U) will generate an event.
Outputs
The Outputs can be set up to be latched or momentary with programmable momentary duration. When an
event is generated by the software the Output acts as a power switch to ground to control external com-
ponents (the power ground must be referenced to camera ground).
Caution: The source voltage for any Output must not exceed 50 Vdc, and the maximum current must not
exceed 250 mA.
l
Connect pin J on the MS connector to Output 1. When an event is generated by the software, a relay
contact connects the Output to the Alarm I/O Common (MS connector pin U).