1. Paging System Design Selecting a Paging Control Unit

2. Page Control Selection Selecting a paging control unit for your application depends on several considerations: Telephone Access method One-Way paging, Talkback (two-way) paging or combination of both Total number of zones (stations) Special Features such as Emergency Page Override, Background Music, Programmable Features Per Zone, Night Ring, Time Clock Tone and Alert Tones

3. Page Control Selection Telephone Access Method - this is where you would determine the type of interface that will be used to access the paging system. There are basically three types of interface methods Loop Start Trunk (requires talk battery) Analog Station Port (provides talk battery) 600 Ohm Paging Port (audio only)

4. Page Control Selection Other methods that are similar to a loop start trunk port are: Foreign Exchange Office (FXO) Wide Area Telephone Service (WATS) Central Office Trunk Port (COT port) Central Office Line Port (Key system line port) Dedicated Single Line Phone Set

5. Page Control Selection Other methods that are similar to an analog station port are: Foreign Exchange Subscriber (FXS) Central Office Line (CO Line) Centrex (Plexar) Plain Ordinary Telephone Service (POTS) Off Premise Extension/Station (OPX, OPS) On Premise Extension (ONP) 2500 Line (Single Line Extension)

6. Page Control Selection ModelDescription PICTURES Access MethodVPU's V-2000A Basic single Zone Page Control Unit Loop start trunk (FXO), page port, telephone set +12 V-2001A Enhanced Single Zone Page Control Unit Loop start trunk (FXO), page port, telephone set +20 V-2003A 3 Zone paging Control Unit Loop start trunk (FXO), page port, telephone set +20 V-2006A 6 Zone Page Control Unit Loop start trunk (FXO), page port, telephone set +30 V-2924A 24 Zone Expandable* Intercom System Loop start trunk (FXO) only 0 V-9940 Expandable Station Page Adapter Station (FXS) -4 V-9970 One-way Digital Station Page Adapter Station (FXS) -4