Defining Zone Termination Resistance; Wiring Resistors For Zone Termination Resistance; Zone Termination Configuration Options - Risco ProSYS Plus Quick Installer's Manual

Defining Zone Termination Resistance

End-of-line termination resistance can be defined for relay detectors, not wireless
or bus detectors. Defining the end-of-line resistance involves first physically wiring
resistors (if not already in place) at installation, and then afterwards selecting the
zone's termination resistance option at the keypad during installer programming
(see Defining Zone Termination Resistance using the "Resistance" Option, page 43).
NOTE: For relay detectors wired to zone expanders, during installer programming
you separately define their individual termination resistance values, and also define
it for the zone expanders.

Wiring Resistors for Zone Termination Resistance

To wire termination resistors:


For RISCO EOL (end-of-line) and DEOL (double-end-of-line) detectors without
built-in termination resistance, install a 2.2K Ω end-of-line resistor at the
detector-side of each hard-wired zone

For a detector with a tamper switch, you can use DEOL termination to save
additional main panel connections

For RISCO TEOL (triple-end-of-line) detectors without built-in end-of-line resistance,
install 4.7K Ω, 6.8K Ω and 12K Ω resistors at the detector-side of each hard-wired
zone. TEOL is supported to identify detector masking and trouble.

Zone Termination Configuration Options

09/2016 Page 24 5IN2371 C