ABOUT SECURITY ZONES
Each of the 48 security zone inputs on an Omni II system may be configured as a burglary zone, a fire zone, a temperature zone, or an auxiliary input. Zones 1-4, however, are the only inputs that can be used with 2-wire smoke detectors. Zones 9-16 are the only inputs that can be configured as a PESM.
An external 1000-ohm end-of-line zone resistor is required for all zones unless the Setup item ZONE RESISTERS is set to "No". If the Setup item ZONE RESISTORS is disabled, all zones other than Supervised Fire and Gas, will not use an end-of-line resistor. In this configuration, all zone switches (other than Supervised Fire and Gas) must be normally closed (open for alarm). If any zone requires a normally open (closed for alarm) switch (other than Supervised Fire and Gas), the Setup item ZONE RESISTORS must be set to "Yes" and all zones will require and external 1000-ohm end-of-line resistor.
The zone type for each zone is selected through the Omni II SETUP menu or by using the PC ACCESS software.
The system supports a maximum zone resistance, excluding the end-of-line resistor, of 150 ohms. The default setting for ZONE RESISTORS is "Yes". The default settings for all zone inputs on an Omni II controller are configured as Auxiliary inputs.
Omni II can be expanded to 48 zones by adding two 16 Zone Hardwire Expander Modules or one 16 Zone Hardware Expander Module and one 16 Zone Wireless Receiver.
BURGLAR ZONE HOOKUPS
The Omni II system supports both normally open and normally closed switches. Most contacts designed for doors, windows, motion detectors, glassbreak detectors and other security devices meet this requirement. An external 1000-ohm end-of-line resistor must be used for all burglary zones if ZONE RESISTORS is set to "Yes".
1.When using a normally open switch, a 1000-ohm end-of-line resistor must be in parallel with the zone being used. Maximum loop resistance excluding end-of-line resistor should not exceed 150 ohms. ZONE RESISTORS must be set to "Yes".
2.When using a normally closed switch, a 1000-ohm end-of-line resistor must be put in series with the zone being used if ZONE RESISTORS are set to "Yes". If ZONE RESISTORS are set to "No", the 1000-ohm end-of-line resistor is not used. Maximum loop resistance excluding end-of-line resistor should not exceed 150 ohms.
3.Power motion detectors from AUXILIARY 12V.
4.Unused zones may be left open, and should be left at the default setting of AUXILIARY zone types.
5.When Zones 1-4 are configured to anything other than a Supervised Fire or Gas zone, the corresponding Zone Jumpers (JP11-JP14) must be in the NRM (normal) position.
6.See FIGURE 2 (OVERALL CONNECTIONS DIAGRAM) for configurations of burglary zones.
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