Reliant Octel 200 and Octel 300 Message Servers PB6001401 Bedienungsanleitung Seite 152

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Seitenansicht 151
4-34
Installation and Maintenance
Volume
Octel Overture 200/300 Serenade 3.0
PB60014–01
External Alarm Port
The
external alarm port uses a 9-pin DB9 female connector with the following pin arrangement:



Use connector J3 for the Octel Overture 200.
Use connector J5 for the Octel Overture 300.
The external-alarm connector pin assignments are as follows:
AJ1
and AJ2 Connector Pin Assignments
Pin Number
Signal Function
1 Relay
A, Pin 1
2
Relay B, Pin 1
3 LINK
4 GND
5 GND
6
Relay A, Pin 2
7
Relay B, Pin 2
8 LINK
9 GND
Relay A is the major alarm relay. Relay B is the minor alarm relay
. A relay is open when there is no
alarm. When a relay is closed, it indicates an alarm condition.
W
ith power removed from the cabinet, both Relay A and Relay B are in the closed position (normally
closed), indicating an alarm condition.
Pins 3 and 8 are linked together to provide a loop. Y
ou can use this as a confirmation that an alarm cable
is installed. Pins 4, 5, and 9 are connected to cabinet ground. These pins can be jumpered to a relay
contact, if closure to ground is required.
Both Relay A and Relay B are rated at
48 Vdc maximum
0.5 A maximum
The link loop is rated at
12 Vdc maximum
200 mA maximum
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