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8
SymDec 4
User Manual
I/O Connector
Three 10-pin connectors (P16, 17, and 18) on the back panel provide the connections for the alarm inputs,
outputs, and other data lines. Connect the wires to the 3 terminating connectors provided with the SymDec 4.
See the table below for a description of the pinouts.
Table 4.
Pin
1
Alarm Relay 1 N/Open
2
Alarm Relay 1 Common
3
Alarm Relay 2 N/Open
4
Alarm Relay 2 Common
5
Not used
6
Not used
7
Not used
8
Not used
9
Alarm Input 1
10
Alarm Input 2
Note:
Do not attempt to wire accessories directly to the I/O connector.
Ethernet Port
The cable connection configuration for the ethernet port depends on your network configuration:
•
For a SymDec 4 that connects directly to a hub, use a straight through connection.
•
For a SymDec 4 that connects directly to a PC, use a cross-over connection.
Consult with your network administrator or IS professional for the specific type of configuration. See
Advanced Menu / Communications / Ethernet Settings
Ethernet settings in the menu system
Ethernet
Wire type
Connector type
Max cable length
Minimum cable length
Hub wiring configuration
PC wiring configuration
P16
Signal
Pin
1
2
3
4
5
6
7
8
9
10
10/100Base-T, auto sensing
Cat 5
RJ-45
328 feet/100 meters
6 feet/1.8 meters
Straight through
Cross over
P17
Signal
Alarm Input 3
Alarm Input 4
Alarm Reset 1
Alarm Reset 2
Alarm Reset 3
Alarm Reset 4
Not used
Not used
Not used
Not used
on page 70 for information about configuring the
P18
Pin
Signal
1
Not used
2
Not used
3
Not used
4
Not used
5
Not used
6
Ground
7
Disk End Output
8
Ground
9
Alarm Output
10
Ground
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