Figure 14: Alarm circuit options with EOL resistors
Callout
Description
A
NO switch
B
NC switch
C
EOL: NO switch; 5.6 kΩ resistor
D
EOL: NC switch; 5.6 kΩ resistor
E
DEOL: NC switch only;
R1=5.6 kΩ resistor; S1=tamper
R2=5.6 kΩ resistor; S2=Alarm
F
TEOL: NC switch only;
R1=5.6 kΩ resistor; S1=tamper
R2=5.6 kΩ resistor; S2=alarm
R3=10 kΩ resistor; S3=fault S2 and S3=masking
7. Close the device cover and fasten the cover screw. See Figure 9.
Wiring the auxiliary input in fallback mode
About this task:
This section is relevant only for devices enrolled in fallback mode as MC-302E PG2 .
1. Connect the auxiliary sensor contacts across the auxiliary input terminals.
2. If the auxiliary input is defined as NC, series connected NC sensor contacts must be used
exclusively. An EOL resistor is not required.
3. If the auxiliary input is defined as NO, parallel connected NO sensor contacts must be used
exclusively. A 5.6 kΩ EOL resistor must be wired at the far end of the zone loop.
4. For EOL supervision: NC sensor contacts can be used, as shown in Figure 14. A 5.6 kΩ EOL
resistor may be wired at the far end of the zone loop.
The following figure illustrates an NO and NC alarm circuit with EOL resistor.
Note:
An alarm message is transmitted once the loop is opened or short circuited.
9
MC-302E PG+ Wired Input Door/Window Magnetic Contact Installation Guide
D-308441 MC-302E PG+ Rev. 0
