GRI 11319 Resistor Pack 1-22K Series & 1-4.7K Parallel

The GRI 11319 is a dual-resistor EOL pack containing one 22K ohm resistor for series wiring and one 4.7K ohm resistor for parallel wiring. This specific combination — 22K series and 4.7K parallel — is the dual EOL (DEOL) resistor specification required by certain alarm panel manufacturers for their double-supervision zone inputs, providing four-state zone monitoring (closed, open, short, and fault) from a single field device.

Features

• Resistor-only pack for zone supervision; eliminates soldering on the job; closed loop switches use the resistor in series; open loop switches use the resistor in parallel; resistor packs available for retrofit of existing switch sets
• Two resistors included: one 22K ohm (series) and one 4.7K ohm (parallel); the specific combination of values matches the DEOL supervision specification of particular alarm control panels — verify your panel's EOL requirements before ordering
• Dual EOL (DEOL) supervision using these two values allows the alarm panel to distinguish between four zone states: normal closed (door closed), alarm (door open), open circuit (wire cut), and short circuit (wire shorted)
• Designed for retrofit applications — adds DEOL supervision to any existing GRI or compatible magnetic contact switch set without replacing the switch, by wiring the resistors in the field at the switch or at a junction point