Section 2: Installation
Table 2-6 SEOL loop status
Loop resistance
Loop status
0 Ω (shorted wire, loop shorted)
Violated
5600 Ω (contact closed)
Secure
Infinite (broken wire, loop open)
Violated
Double end of Line (DEOL) resistors
When double end-of-line (DEOL) resistors are installed at the end of a zone loop, the second resistor enables the panel to
determine if the zone is in open, closed, tampered or faulted.
Note:
Any zone programmed for Fire or 24-hr Supervisory must be wired with a SEOL resistor regardless of the type of zone
wiring supervision selected for the panel. If you change the zone supervision options from DEOL to SEOL or from NC to
DEOL, power the system down completely, then power it back up for correct operation.To enable DEOL supervision per
zone, program section [013], option [1] to OFF and option [2] to ON. To configure DEOL supervision per zone, use pro-
gramming section [002], bit 11.
Figure 2-31 DEOL wiring
Note:
If the DEOL supervision option is enabled, all hardwired zones must be wired for DEOL resistors, except for Fire and
24 Hour Supervisory zones. Do not use DEOL resistors for Fire zones or 24 Hour Supervisory zones.
Note:
Do not wire Fire zones to keypad zone terminals if the DEOL supervision option is selected.
Note:
This option can only be selected if N/C detection devices or contacts are used. Only one N/C contact can be con-
nected to each zone.
The following table shows zone status under certain conditions for DEOL:
Table 2-7 DEOL loop status
Loop resistance
Loop status
0 Ω (shorted wire, loop shorted)
Fault
5600 Ω (contact closed)
Secure
Infinite (broken wire, loop open)
Tamper
11200 Ω (contact open)
Violated
Triple end-of-line (TEOL) resistor
The TEOL resistor supervises anti-masking functionality in hardwired motion detectors. To configure TEOL supervision per
zone, use programming section [002], bit 15.
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