Section 2: Installation
Wire gauge
Maximum length to EOL resistor (ft/meters)
19
6200 / 1889
18
7800 / 2377
Figures are based on maximum wiring resistance of 100
Ω.
Zone status-loop resistance/status
Table 2-5: Loop resistance values
Loop Status
Loop Resistance
SEOL (standard)
SEOL (Fire)
DEOL
TEOL
Fault
Infinite
0Ω
15,600Ω
Secure
5600Ω
5600Ω
5600Ω
5600Ω
Tamper
Infinite
Infinite
Alarm
0Ω/Infinite
0Ω
11,200Ω
11,200Ω
Masking
21,200Ω
Normally closed
Connect hardwired devices to any Z terminal and any COM terminal. Wire normally closed devices in series.
Note:
For UL Installations, do not use normally closed loops.
Figure 2-31: Normally closed
Callout
Description
1
Any Z terminal
2
Any COM terminal
3
Normally closed contact with no end of line resistor
4
2 normally closed contacts with no end of line resistor
The following table shows zone status under certain conditions for NC Loops:
Table 2-6: NC loop status
Loop resistance
Loop status
0 Ohm (shorted wire, loop shorted)
Secure
Infinite (broken wire, loop open)
Alarm
Single end-of-line (SEOL) resistor
When SEOL resistors are installed at the end of a zone loop, the alarm panel detects if the circuit is secure, open, or shorted. The
SEOL resistor must be installed at the end of the loop for proper supervision.
To enable SEOL supervision, program section [013], options [1] and [2] to OFF. To configure SEOL supervision per zone, use
programming section [002], attribute 10.
Note:
This option should be selected if either normally closed or normally open detection devices or contacts are used.
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