1. Selecting a Paging Control Unit
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
Model
Description
PICTURES
Access Method
VPU'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
+20
V-2003A
3 Zone paging Control Unit
V-2006A
6 Zone Page Control Unit
+30
V-2924A
24 Zone Expandable* Intercom System
Loop start trunk (FXO) only
V-9940
Expandable Station Page Adapter
Station (FXS) -4
V-9970
One-way Digital Station Page Adapter