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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CAUTION: These devices are not intended for use in hazardous locations as defined by the National Electrical Code (NEC) and by the

National Fire Protection Association (NFPA).

FIGURE 2.

FIGURE 3.

FIGURE 4.

SIMPLIFIED SCHEMATIC AND CONNECTION DIAGRAM.

* Connect only if Wheelock TBM-101 or TBH-104 Talkback Modules are used.

The ZC-3 can be connected to an audio page port only if the audio page port provides:

(A) A 600 OHM, low power audio output.
(B) Transmission of DTMF touchtones.
(C) A dry contact closure that closes when the port is selected, and opens when the paging telephone "hangs-up"

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Check telephone system manufacturer's installation instructions for
any other audio page port connection considerations.

NOTE

WIRING: See Figure 4.

- Make sure the 24VDC Power Supply is disconnected from the 115VAC power source.

- Connect Tip and Ring from telephone system to TB1, terminals 2 and 1 respectively.

- For Zone 1, connect Speaker Amplifiers, Paging Amplifier, or Wheelock Talkback Speaker Module Tip and Ring to TB2 terminals 4 and 3
respectively. If a Talkback Speaker Module is used, also:

(A) Connect its TB inhibit (TB1 terminal 6) to the required ZC-3 zone INH (terminal 13, 14, or 15).
(B) If Talkback Module and ZC-3 use separate power supplies, then also connect Talkback Module's GND (TB1 terminal 5) to ZC-3's "A" GND

(TB1 terminal 4).

- Connect Zone 1 background music source to TB2, terminals 1 and 2. Background music may be connected to any or all zones.

- Zones 2 and 3 hook up in a similar fashion.

- Connect the "A" battery power supply positive (+) and negative (-) to TB1, terminals 4 and 3 respectively. Connect the "B" battery power supply
positive (+) and negative (-) to TB1, terminals 6 and 5 respectively. One Wheelock RPS-2406 Power Supply ("A" battery) can be used for both "A"
and "B" battery.

- Recheck all wiring.

- Connect the power supply to the 115VAC power source.

- Test the system using the following operation instructions.

OPERATION:

- Pick up the telephone handset and press the CO line button (EKSU, KSU), or number assigned to paging (PABX), to access the CO port to which
ZC-3 has been connected).

- To initiate a zone page, dial "1", "2", or "3" (on the telephone's touchtone keypad) to select zone 1, 2 or 3 respectively.

- To initiate an All-Call page, dial "0" (on the telephone's touchtone keypad).

- Sequential selections can be made between zones, from zones to All-Call, or from All-Call to zones by simply dialing the next zone or All-Call.
Sequential selections can be made in any order. It is not

- A zone page will mute background music only in the zone selected.

- All-Call will mute background music throughout the system.

- At the conclusion of page (i.e., phone "hangs-up", or another selection is made), the muted background music will automatically be restored.

- When any page is initiated, an alert tone is heard both in the telephone receiver, and at all selected speakers.

VOLUME ADJUSTMENTS:

- First adjust volume controls on Speaker Amplifiers and Talkback Speaker Modules for required paging volume. (If paging amplifiers are used with
conventional speakers equipped with line matching transformers, then refer to the Paging Amplifier's instructions for volume adjustments).

- Next adjust page alert tone volume (internal adjustment in ZC-3), to required level. When control is turned fully counter clockwise, page alert tone
is "OFF".

- Lastly, adjust volume on background music source (if applicable).

TROUBLE SHOOTING

CONDITION CHECK

CONNECTION TO 600 OHM AUDIO PAGE PORT

necessary to "hang-up" between selections.

FIGURE 5.

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1. Zone page or All-Call

page cannot be
accessed

2. No background music.

3. No sound or low page

volume.

4. The alert tone is

too high or too low.

5. Talkback does not

function properly.

1. Telephone system must have touchtone (DTMF)
dialing.

2. Check presence and polarity of -24VDC and
GND for both "A" and "B" battery.

3. Check sidetone in handset. If there is no side
tone, recheck "A" and "B" battery, at least

-20VDC required.

1. Verify unit has released from last page.

2. Check program source, and adjust its volume
control, as desired.

3. Check presence of music audio input at "T" in
and "R" in and if necessary also at the music
source.

4. Check presence of music audio input at "T" out
and "R" out and if necessary also at speaker
amps. or paging amp. input.

1. Check presence and level of audio input at Tip
Ring and if necessary also at the CO Port.

2. Check presence and level of audio at "T" out
and "R" out and if necessary also at speaker
amps. input.

1. Set the alert Tone Volume to the desired
level.

1. If ZC-3 and TBM-101 or TBH-104 use separate
power supplies, then check to insure there is a
common GND connection between ZC-3 and
TBM-101 or TBH-104.

2. TBM-101 or TBH-104 inhibit (INH) terminal
must be connected to the ZC-3's proper zone
inhibit (INH) terminal.

3. Refer TBM-101 or TBH-104 installation
instructions.

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Limited Warranty

Wheelock products must be used within their published specifications and must be PROPERLY specified, applied, installed, operated, maintained and
operationally tested in accordance with these instructions at the time of installation and at least twice a year or more often and in accordance with local,
state and federal codes, regulations and laws. Specification, application, installation, operation, maintenance and testing must be performed by qualified

personnel for proper operation in accordance with all of the latest National Fire Protection Association (NFPA), Underwriters' Laboratories (UL), National
Electrical Code (NEC), Occupational Safety and Health Administration (OSHA), local, state, county, province, district, federal and other applicable
building and fire standards, guidelines, regulations, laws and codes including, but not limited to, all appendices and amendments and the requirements
of the local authority having jurisdiction (AHJ). Wheelock products when properly specified, applied, installed, operated, maintained and operationally
tested as provided above are warranted against mechanical and electrical defects for a period of one year from date of installation or 18 months from
date of manufacture (as determined by date code), whichever first occurs. Correction of defects by repair or replacement shall be at Wheelock's sole
discretion and shall constitute fulfillment of all obligations under this warranty. THE FOREGOING LIMITED WARRANTY SHALL IMMEDIATELY
TERMINATE IN THE EVENT ANY PART NOT FURNISHED BY WHEELOCK IS INSTALLED IN THE PRODUCT. THE FOREGOING LIMITED
WARRANTY SPECIFICALLY EXCLUDES ANY SOFTWARE REQUIRED FOR THE OPERATION OF OR INCLUDED IN A PRODUCT. WHEELOCK
MAKES NO REPRESENTATION OR WARRANTY OF ANY OTHER KIND, EXPRESS, IMPLIED OR STATUTORY WHETHER AS TO
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR ANY OTHER MATTER.

USERS ARE SOLELY RESPONSIBLE FOR DETERMINING WHETHER A PRODUCT IS SUITABLE FOR THE USER'S PURPOSES, OR WHETHER
IT WILL ACHIEVE THE USER'S INTENDED RESULTS. THERE IS NO WARRANTY AGAINST DAMAGE RESULTING FROM MISAPPLICATION,
IMPROPER SPECIFICATION, ABUSE, ACCIDENT OR OTHER OPERATING CONDITIONS BEYOND WHEELOCK'S CONTROL.

WHEELOCK DOES NOT WARRANT THAT THE OPERATION OF THE SOFTWARE WILL BE UNINTERRUPTED OR ERROR-FREE OR THAT THE
SOFTWARE WILL MEET ANY OTHER STANDARD OF PERFORMANCE, OR THAT THE FUNCTIONS OR PERFORMANCE OF THE SOFTWARE
WILL MEET THE USER'S REQUIREMENTS. WHEELOCK SHALL NOT BE LIABLE FOR ANY DELAYS, BREAKDOWNS, INTERRUPTIONS, LOSS,
DESTRUCTION, ALTERATION, OR OTHER PROBLEMS IN THE USE OF A PRODUCT ARISING OUT OF OR CAUSED BY THE SOFTWARE.

THE LIABILITY OF WHEELOCK ARISING OUT OF THE SUPPLYING OF A PRODUCT, OR ITS USE, WHETHER ON WARRANTIES, NEGLIGENCE,
OR OTHERWISE, SHALL NOT IN ANY CASE EXCEED THE COST OF CORRECTING DEFECTS AS STATED IN THE LIMITED WARRANTY AND
UPON EXPIRATION OF THE WARRANTY PERIOD ALL SUCH LIABILITY SHALL TERMINATE. WHEELOCK IS NOT LIABLE FOR LABOR COSTS
INCURRED IN REMOVAL, REINSTALLATION OR REPAIR OF THE PRODUCT BY ANYONE OTHER THAN WHEELOCK OR FOR DAMAGE OF ANY
TYPE WHATSOEVER, INCLUDING BUT NOT LIMITED TO, LOSS OF PROFIT OR INCIDENTAL OR CONSEQUENTIAL DAMAGES. THE
FOREGOING SHALL CONSTITUTE THE SOLE REMEDY OF THE PURCHASER AND THE EXCLUSIVE LIABILITY OF WHEELOCK.

IN NO CASE WILL WHEELOCK'S LIABILITY EXCEED THE PURCHASE PRICE PAID FOR A PRODUCT.

Limitation of Liability

WHEELOCK'S LIABILITY ON ANY CLAIM OF ANY KIND, INCLUDING NEGLIGENCE AND BREACH OF WARRANTY, FOR ANY LOSS OR DAMAGE
RESULTING FROM, ARISING OUT OF, OR CONNECTED WITH THIS CONTRACT, OR FROM THE MANUFACTURE, SALE, DELIVERY, RESALE,
REPAIR OR USE OF ANY PRODUCT COVERED BY THIS ORDER SHALL BE LIMITED TO THE PRICE APPLICABLE TO THE PRODUCT OR PART
THEREOF WHICH GIVES RISE TO THE CLAIM. WHEELOCK'S LIABILITY ON ANY CLAIM OF ANY KIND SHALL CEASE IMMEDIATELY UPON THE
INSTALLATION IN THE PRODUCT OF ANY PART NOT FURNISHED BY WHEELOCK. IN NO EVENT SHALL WHEELOCK BE LIABLE FOR ANY
CLAIM OF ANY KIND UNLESS IT IS PROVEN THAT OUR PRODUCT WAS A DIRECT CAUSE OF SUCH CLAIM. FURTHER, IN NO EVENT,
INCLUDING IN THE CASE OF A CLAIM OF NEGLIGENCE, SHALL WHEELOCK BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.
SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE PRECEDING
LIMITATION MAY NOT APPLY TO ALL PURCHASERS.

6/93

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