wheelock ZC-3 INSTALLATION INSTRUCTIONS

273 Branchport Avenue
Long Branch, N.J. 07740
[phone]

FCC REGULATIONS

This equipment complies with Part 68 of the FCC Rules. On the back of this equipment is a label that contains, among other information, the FCC
Registration Number and the Ringer Equivalence Number (REN) for this equipment. You must, upon request provide this information to your telephone
company.

The REN is also useful to determine the quantity of devices that you may connect to your telephone line and still have all of those devices ring when your
telephone number is called. In most, but not all areas, the sum of the REN's of all devices connected to one line should not exceed five (5.0). To be
certain of the number of devices that you may connect to your line, you may want to contact your local telephone company.

Should the equipment cause harm to the telephone network, the telephone company shall, if possible, notify the customer that temporary discontinuance
of service may be required. However, where prior written notice is not possible, the telephone company may temporarily discontinue service without
notice, if such action is necessary under the circumstances. The telephone company may make changes in its communication facilities, equipment and
operations procedures, where such action is reasonably required in the operation of its business and is not inconsistent with the rules and regulations of
the Federal Communications Commission.

Do not attempt to repair or modify this equipment. Repairs to this product will be performed by Wheelock Inc. 273 Branchport Ave, Long Branch, NJ
07740 in accordance with Wheelock Inc.'s published Terms and conditions of Sale. This equipment should not be used on coin telephone lines.
Connection to party line service is subject to state tariffs.

If trouble is experienced, disconnect this equipment from the telephone line to determine if it is causing the malfunction. If the equipment is determined
to be malfunctioning, its use shall be discontinued until the problem has been corrected.

APPLICATION INFORMATION

INSTALLATION INSTRUCTIONS

ZONE CONTROL MODULE (3 ZONES)

MODEL NUMBER ZC-3

WARNING: ANY MATERIAL EXTRAPOLATED FROM THIS DOCUMENT OR FROM WHEELOCK MANUALS OR OTHER DOCUMENTS

The ZC-3 Zone Control Module provides the central control, switching and signaling required to perform the following functions when connected to an
unused loop start CO port of electronic (EKSU), mechanical (1A2) key PBX telephone systems. It can also be connected to a 600 OHM low power audio
page port which transmits DTMF touchtones and provides a contact closure.

1. Three zones of paging (one-way and/or Talkback)

2. All-Call

3. Background music input to any or all zones

4. Background music mute:
A. Per Zone - only within the paged zone
B. Total system - on All-Call

5. Alert tone prior to page:
A. Per zone - only within the paged zone
B. Total system - on All-Call

6. Alert tone volume adjustment (with "OFF" position)

7. Talkback Inhibit on All-Call

8. Provides talk battery to an unused CO line/trunk port.

The Zone Control Module can be used with:

1. Speaker Amplifiers

2. Wheelock TBM-101 Talkback Speaker Module and TBH-104 Talkback Horn System.
Modules - maximum of one per zone

3. Zone Amplifiers (one per zone) for 25V/70V paging systems.

4. Any combination of items (1) thru (3) (Not mixed in the same zone).

Copyright 1987, 1988, 1989, 1991, 1992, 1993 Wheelock Inc. All rights reserved.

A maximum of 10 Speaker Amplifiers (including TBM-101 and TBH-104 Talkback Modules) can be connected to one Zone Control Module, based upon
a minimum audio input signal of -15dBM (0.1VRMS) at each speaker-amplifier. Depending upon the paging systems configuration, and the available
audio output signal from the host telephone system, the audio input signal may be less. If additional volume is required, use Wheelock's PRM-150

DESCRIBING THE PRODUCT FOR USE IN PROMOTIONAL OR ADVERTISING CLAIMS, OR FOR ANY OTHER USE,
INCLUDING DESCRIPTION OF THE PRODUCT'S APPLICATION, OPERATION, INSTALLATION AND TESTING IS USED AT
THE SOLE RISK OF THE USER AND WHEELOCK WILL NOT HAVE ANY LIABILITY FOR SUCH USE.

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Preamplifier. Expanded systems can have up to 150 Speaker Amplifiers connected to each zone, by installing a Wheelock PRM-150 preamplifier in

zone's output. The PRM-150 is used for one-way paging zones only.

each

1. The ZC-3 Zone Control Module is designed for indoor use.

2. The ZC-3 is designed for use with touch-tone (DTMF) systems only

NOTES

.

TYPICAL APPLICATION DIAGRAM

FIGURE 1.

POWER SUPPLY REQUIREMENTS
The ZC-3 requires:

1. "A" Battery - 18 to 28VDC filtered talk battery.

2. "B" Battery - 20 to 28V peak unfiltered relay battery.

The Wheelock RPS-2406 Power Supply is regulated and filtered ("A" Battery). One RPS-2406 can provide the ZC-3 "A" and "B" battery requirements.

Parameter Minimum Nominal Maximum Units
Supply Voltage -20 -24 -28 VDC
Idle "A" Battery 0 mA
Current "B" Battery 25 mA
Operating "A" Battery 60 mA
Current "B" Battery 100 mA
Alert Tone Frequency 700 Hz
Alert Tone Duration 500 m sec
Alert Tone Level -11 dBm
Page Input/Output Level (T&R) -15 10 dBm
Page Input/Output Impedance (T&R) 600 Ohms
Music Input/Output Level -15 10 dBm
Music Input/Output Impedance 600 Ohms
Operating Temperature 0 55 C
Operating Humidity TO 85% RH
Zone Control Access * PRESS CO LINE BUTTON, OR TOUCH DIAL NUMBER ASSIGNED TO PAGE
Page Zone 1 Dial "1"
Page Zone 2 Dial "2"
Page Zone 3 Dial "3"
All - Call Dial "0"
Off-Hook Detection Sensitivity 1125 Ohms DC Resistance (780 to 1460 Ohms)

* CO LINE BUTTON - FOR EKSU AND KSU (1A2) KEY TELEPHONE SYSTEMS.
NUMBER ASSIGNED - FOR PBX TELEPHONE SYSTEMS.

MOUNTING INFORMATION
The ZC-3 is designed for surface wall mounting near the telephone system. Remove the top cover by pushing on the latch at the bottom of the housing
base with a small screw driver. See Figure 2.

Figure 3 is the mounting template. To mount the base (containing the PC Board Assembly) to the wall space the 2 mounting screws provided
horizontally on 2.750" centers (See Figure 3).

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