Specifications
1. Pick up the telephone handset and press the CO line button (EKSU, KSU), or number assigned to paging (PBX) to access the port assigned to
paging. (Port to which the ZC-312 has been connected).
2. To initiate a zone page, dial "01" thru "12" to select zones 1 thru 12, respectively.
3. To initiate a group page, dial "21" thru "24" to select zone groups 1 thru 4, respectively.
4. To initiate an all-call page, dial "00".
5. When paging, background music will be muted. At the conclusion of the page (i.e., phone "hangs-up"), the background music will automatically be
restored.
6. When any page is initiated, an alert tone is heard both in the telephone receiver, and in all selected zones. Adjust the tone volume control in the
ZC-312 to the desired level. Note the minimum setting turns the tone off.
7. If talkback is used, adjust the talkback volume control in the ZC-312 to the desired level.
8. At the conclusion of the page, simply hang-up the telephone handset; or press the hook switch before dialing the next number.
TROUBLE SHOOTING
CONDITION
CHECK
1. Zone page or all call page cannot be
accessed
1. Telephone system must have touch tone (DTMF) or rotary (pulse) dialing
2. Check presence and polarity of voltage on (-) 24VDC and GND (+) terminals on TB4.
2. No background music. 1. Verify unit has released from last page.
2. Check program source, and adjust its volume control, as desired.
3. Check presence of line level music input (if used) at terminals on TB1 of ZC-312.
Check for presence of music at terminals on TB2 of ZC-312 and TB2 of ZEM-3
modules. If necessary also at speaker amplifier, or central or zone amplifier inputs.
3. No sound or low page volume. 1. Check presence and level of audio input at Tip and Ring terminals on TB1 of the ZC-
312, and if necessary also at the CO Port. (or the Audio Page Port)
2. Check presence and level of audio at the zone AUDIO output terminals on TB2 of the
ZC-312 and TB1 of the ZEM-3 modules. If necessary also at speaker amplifier inputs,
and central or zone amplifier inputs.
4. The page alert tone is too high or too
low.
1. Set the page alert Tone Volume Control in the ZC-312, to the desired level.
5. Talkback does not function properly. 1. Check for proper programming of the zone's One-Way/Talkback Select Switch.
2. Adjust the talkback Volume control in the ZC-312.
P81982 K
Sheet 20 of 21
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