wheelock ZC-312 INSTALLATION INSTRUCTIONS

273 Branchport Avenue Long Branch, N.J. 07740 (908) 222-6880

FCC REGULATIONS This equipment complies with Part 68 of the FCC Rules. On the top 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

MODEL ZC-312

MODULAR ZONE CONTROL

(3 ZONES EXPANDABLE TO 12 ZONES)

- AND -

MODEL ZEM-3

ZONE EXPANSION MODULE

(3 ZONES)

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

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.

The ZC-312 is an expandable Zone Control that performs the central control, switching and signaling required to provide selective zone paging, zone group paging, all call, talkback, background music mute, and page alert tone signaling. The ZC-312 provides 3 separate zones of paging, and can be expanded to 12 zones by installing up to 3 ZEM-3 Zone Expansion Modules. Each ZEM-3 provides a zone group consisting of 3 zones. Each ZEM-3 provides a background music input for its 3 zone group.

Containing its own (centralized) talkback control circuit, the ZC-312 can be programmed to accommodate both one-way and talkback paging zones. It can also be programmed to be used with a wide variety of system amplifier configurations which can include various combinations of 25V/70V central and zone amplifiers and amplified one-way paging speakers.

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Sheet 1 of 21 The ZC-312 is compatible with most EKSU, KSU (1A2), and PBX telephone systems. It connects to either an unused loop start CO port or a 600 ohm low power audio page port. When connected to an unused CO port, both DTMF and rotary (pulse) dial telephones may be used to operate the ZC-312. When connected to a page port, the page port must transmit DTMF tones and provide a dry contact closure. The ZC-312 can also be used in "Ring Start" applications (CO/Centrex, Station Level), when used with the Wheelock TPI-100 Telephone Paging Interface.

Paging is accessed from any telephone by pressing the CO line button (EKSU & KSU), or dialing the number assigned to paging. Twelve (12) individual zones are selected by dialing 01 thru 12. All Call is selected by dialing 00. The four (4) zone groups are selected for group paging, by dialing 21 thru 24.

When any zone, zone group, or all call selection is made, a page alert tone will be heard at all the speakers in the selected zone, zone group, or all zones (if all call is selected). The tone will also be heard at the paging telephone to provide verification of connection to the selected speakers.

The ZC-312 provides one zone group (3 zones) and can be expanded to 4 zone groups (12 zones), by adding up to 3 plug-in ZEM-3 zone expansion modules as shown in Chart 1 and Figure 1.

INTERFACE INFORMATION:

The ZC-312 can be connected directly to:

A. A telephone for stand alone paging.

B. A telephone system's unused CO line/trunk port.

C. A telephone system's 600 ohm audio page port (See Figure 12, page 19).

Using a Wheelock TPI -100 Telephone Paging Interface, the ZC-312 can be interfaced to ring start telephone paging applications such as:

A. An analog station level line.

B. A CO/Centrex line.

(See Figure 13 page 19)

Figure 1 shows the ZC-312 PC Board which includes built-in zone group 1 (Zones 1, 2, & 3), and illustrates the positions for the optional ZEM-3 Zone Expansion Modules.

GROUP Z0NES QTY. OF ZEM-3

1 1,2,3 0 2 4,5,6 1 3 7,8,9 2 4 10,11,12 3

ZC-312 PC BOARD AND ZEM-3 POSITIONS

CHART 1

ZONE GROUPS

FIGURE 1

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Sheet 2 of 21

Each zone may be accessed individually by dialing 01 thru 12. All zones can be accessed simultaneously for an all call by dialing 00. Each 3 zone group can be accessed by dialing 21 thru 24. Chart 2 illustrates the two digit dial access codes.

CHART 2

DIAL ACCESS CODES

TO ACCESS DIAL All Zones (All Call) 00 Zone 1 01 Zone 2 02 Zone 3 03 Zone 4 04 Zone 5 05 Zone 6 06 Zone 7 07 Zone 8 08 Zone 9 09 Zone 10 10 Zone 11 11 Zone 12 12 Zone Group 1 (Zones 1, 2 & 3) 21 Zone Group 2 (Zones 4, 5 & 6) 22 Zone Group 3 (Zones 7, 8 & 9) 23 Zone Group 4 (Zones 10, 11 & 12) 24

Each zone group can be individually programmed with group selector switches for the following group functions.

The amplifier type (central or zone) is programmed for each zone group as described in Chart 3.

CHART 3

AMPLIFIER TYPE

GROUP PROGRAMMABLE FUNCTION

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Sheet 3 of 21

If any of the zone groups require central amplification, then the choice of one or two central amplifiers is programmed for each of those groups, as described in Chart 4.

The speech direction function is programmed on a per zone basis, as described in Chart 5.

The ZC-312's talk battery output function can be turned "ON" or "OFF" depending upon the paging access source, as shown in Chart 6.

GROUP FUNCTION CHOICES - PER GROUP

2. Zone Amplifier:

GROUP FUNCTION CHOICES - PER GROUP

1 or 2 Central Amplifiers

2. Two central amplifiers, one for paging and one for

Talk Battery output ON/OFF "OFF" with Wheelock TPI-100 Interface for station

Amplifier Type

FUNCTION CHOICES - PER ZONE

Speech 1. One-way paging.

Direction 2. Talkback (two-way communication with hands-free

Talkback may be chosen only for zones within central amplifier groups.

TALK BATTERY OUTPUT SYSTEM PROGRAMMABLE FUNCTION

FUNCTION CHOICES FOR SYSTEM

1. Central Amplifier: 25V or 70V audio output switched to one-way and/or talkback speakers with line matching transformers.

600 ohm audio input switched to separate zone amplifiers connected to one-way paging speakers with 25V/70V line matching transformers; or switched to PRM-150 line preamplifiers or connected to one-way paging speaker amplifiers.

NOTE

1 OR 2 CENTRAL AMPLIFIERS

CHART 4

GROUP PROGRAMMABLE FUNCTION

1. One central amplifier for both paging and background music. Paging in any zone will mute music in all zones.

background music. For one-way paging, music is muted only in the zone paged. For talkback paging, music is muted in all zones.

CHART 5

SPEECH DIRECTION

ZONE PROGRAMMABLE FUNCTION

reply).

CHART 6

"ON" for stand alone telephone, unused CO line/trunk port, and 600 ohm audio page port..

level, CO or Centrex line.

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Sheet 4 of 21

Additionally, the ZC-312 can be programmed for use with a Wheelock TPI-100 Interface which produces paging from a Station Level, or Centrex line, as shown in Chart 7.

TPI-100 INTERFACE FOR STATION LEVEL, CO, OR CENTREX PAGING SYSTEM PROGRAMMABLE FUNCTION

FUNCTION CHOICES FOR SYSTEM Station level, CO or Centrex line paging (Wheelock TPI-100 Interface is required).

Depending upon system amplifier configuration, the amplifier functions and background music mute operation will vary, as shown in Chart 8.

AMPLIFIER CONFIGURATIONS, FUNCTIONS, AND MUSIC MUTE OPERATION

AMPLIFIER CONFIGURATION FUNCTION MUSIC MUTE OPERATION

(A) One (1) Central Amplifier Paging & Music Paging any zone will mute music in

(B) Two (2) Central Amplifiers One for Paging

(E) Mixed (B) & (C) Above

1. The talkback function is centrally controlled in the ZC-312, and can be selected per Zone for Configurations (A) and (B), as well as the (A) and (B) segments of mixed systems (D) and (E).

2. Mixed amplifier configurations (D) and (E) cannot be applied within the same zone group.

3. When 2 central amplifiers are used, music will be muted in All Zones only when a Talkback Zone is accessed.

The following application diagrams show the seven basic system configurations of the ZC-312 and its companion ZEM-3 Zone Expansion Modules. All of these configurations are possible with the appropriate programming switch selections. Figures 2, 3, 4, and 5 are typical configurations using central amplifiers. Figure 6 is a typical configuration using amplified speakers. Figures 7 and 8 are typical configurations using zone amplifiers.

"LO" with Wheelock TPI-100 Interface.

"HI" without Wheelock TPI-100 Interface.

and

all zones. Music is muted only in the paged zone(s).

Music is muted only in the paged zone(s)

1. Central Amplifier Zones: Paging mutes music in all zones.

2. Zone Amplifier Zones: Music is muted only in the paged zone(s).

zone(s).

CHART 7

CHART 8

One for Music

Paging & Music

Paging & Music Music is muted only in the paged

NOTES

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Sheet 5 of 21

FIGURE 2

ONE CENTRAL AMPLIFIER WHICH HAS MUSIC MUTE,

PAGE INPUT AND MUSIC INPUT

(ONE-WAY PAGING AND/OR TALKBACK)

In this application, the one central amplifier for both paging and background music has music muting and separate inputs (volume controls) for paging and music. The system uses speakers with built-in line matching transformers for both one-way paging, and paging with talkback.

1. If the central amplifier does not provide music mute, then the background music source is connected as shown in Figure 3.

2. In systems with talkback paging, install one background music source only as shown. DO NOT connect background music source directly to zone group music inputs.

NOTE

Sheet 6 of 21

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FIGURE 3

ONE CENTRAL AMPLIFIER

WHICH DOES NOT HAVE MUSIC MUTE,

AND WHICH HAS ONLY ONE INPUT

(ONE-WAY PAGING AND/OR TALKBACK)

In this application, the one central amplifier for both paging and background music does not provide music muting, and has only one input (one, or no volume control). The system uses speakers with built-in line matching transformers for both one-way paging, and paging with talkback.

1. If the background music source has no volume control, then the optional PRM-150 must be connected between the background music source and the ZC-312 MUSIC input, as shown.

2. In systems with talkback paging, install one background music source only as shown. DO NOT connect background music source directly to zone group music inputs.

NOTE

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wheelock ZC-312 INSTALLATION INSTRUCTIONS

Specifications and Main Features

Frequently Asked Questions

User Manual