GROUP FUNCTION
CHOICES - PER GROUP
Amplifier Type
1. Central Amplifier:
25V or 70V audio output switched to one-way
and/or talkback speakers with line matching
transformers.
2. Zone Amplifier:
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.
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.
CHART 4
1 OR 2 CENTRAL AMPLIFIERS
GROUP PROGRAMMABLE FUNCTION
GROUP FUNCTION
CHOICES - PER GROUP
1 or 2 Central Amplifiers
1. One central amplifier for both paging and
background music. Paging in any zone will mute
music in all zones.
2. Two central amplifiers, one for paging and one for
background music. For one-way paging, music is
muted only in the zone paged. For talkback
paging, music is muted in all zones.
The speech direction function is programmed on a per zone basis, as described in Chart 5.
CHART 5
SPEECH DIRECTION
ZONE PROGRAMMABLE FUNCTION
FUNCTION
CHOICES - PER ZONE
Speech
1. One-way paging.
Direction
2. Talkback (two-way communication with hands-free
reply).
NOTE
Talkback may be chosen only for zones within central amplifier groups.
P81982 K
Sheet 4 of 21
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.
CHART 6
TALK BATTERY OUTPUT SYSTEM PROGRAMMABLE FUNCTION
FUNCTION
CHOICES FOR SYSTEM
Talk Battery output
"ON" for stand alone telephone, unused CO line/trunk
port, and 600 ohm audio page port..
ON/OFF
"OFF" with Wheelock TPI-100 Interface for station
level, CO or Centrex line.
