Specifications

9
CONFIGURATION 3:
LOOP START TRUNK / 3-ZONE / ONE-WAY PAGING / SINGLE AMPLIFIER / 25 & 70V AC SPEAKERS
In this configuration, the PCM unit supplies a 48V talk battery and loop current detection from pins 3 & 4 of the TRUNK/PAGE PORT
jack on the PCMTIM module to the loop start trunk in the telephone system. There are two modes of operation for loop start trunk.
(1) When the unit detects a loop resistance between TIP and RING, it activates. When the loop opens, the page ends. Pins 1, 2, 5 & 6
are not used in this configuration. Note: Default and VOX timers are not used in this mode.
(2) The unit will operate as in mode one, except it will also provide a one-second hook flash after the expiration of the VOX and/or
Default timers. Operation in this mode will enable the unit to automatically disconnect itself from the loop start trunk of the PBX.
This will prevent the paging system from being locked up indefinitely in the event a telephone is accidentally left off hook after a page
has been completed. The feature codes are 014 to inhibit and 015 to enable this feature. The default feature code is 014 (OFF).
The required setup includes PCMTIM - PCMCPU - PCMZPM - PCMPS2. Modules must be assembled, from left to right, in this order.
INSTALLATION:
STEP 1: Assemble Modules PCMTIM to PCMCPU and to PCMZPM (see Illustration/Instructions on Appendix page 37,
then return to this page and complete the following Steps).
Note: DO NOT connect the PCMPS2 (power supply) at this point.
STEP 2: Connecting Loop Start Trunk from the Telephone System to the PCMTIM Module
• Take the loop start trunk pair from the telephone system and wire it to the RJ11 TRUNK/PAGE PORT jack in the PCMTIM module
to pins 3 and 4 (red and green).
• Use a 4 or 6-pin modular cord to connect the RJ11 to the TRUNK/PAGE PORT jack on the PCMTIM module.
STEP 3: Switch Settings
• Set the slide switches on the PCMTIM module for Loop Start Trunk configuration: Set the first switch to LS (for Loop Start) and set
the second switch to TRUNK.
• Set the SYS-ID DIP switches on the PCMCPU module to the OFF position (to the left).
• Set the RUN-PROGRAM switch on the PCMCPU module to the RUN mode (up).
• Set the Talk Back DIP switches on the PCMZPM module to the OFF position (to the left) for all zones.
• Set the OUTPUT switch on the PCMZPM module to the HI-PWR position (down).
STEP 4: Testing your System
• Connect power supply PCMPS2 to the PCMCPU module to either the power jack 12V DC input or wire it to the 12V DC screw ter-
minals observing polarity.
• Power LEDs should be lit on each module.
• Access the Loop Start Trunk from the phone system and verify access tones (double beep).
• At this point, the system should be functioning properly.
• Disconnect Power Supply.
STEP 5: Connecting the Paging Amplifier
• Locate the terminals on the PCMCPU module labeled PA IN/RT and wire to the TIP and Ring (T & R) input on the Bogen
paging amplifier (either TPU-Series, GS-Series, or Classic Series amplifiers).
• Locate the terminals on the PCMCPU module labeled PA OUT/RT and wire to COMMON and either the 25 or 70V output
on the paging amplifier.
STEP 6: Connecting 25 & 70V AC Speakers
• Locate the terminals on the PCMZPM module labeled ZONE A. These terminals have two connections marked + and - .
Wire your speakers for ZONE ONE to these terminals. Observe polarity (-) to common (+) to selected tap setting.
• Follow the same procedure for the terminals labeled ZONE B for ZONE TWO, and the terminals labeled ZONE C
for ZONE THREE.
STEP 7: Testing your System
• Connect the power supply PCMPS2 to the PCMCPU module to either the power jack 12V DC input or wire it to the 12V DC screw
terminals observing polarity.
• Connect the Bogen amplifier to the AC power outlet (120V AC 60Hz).
• Set the volume on your Bogen amplifier to a 1/2 turn.
• Access the Loop Start Trunk from the telephone system and listen (on the handset) for the confirmation tone (double beep).
• Dial 01 to access ZONE ONE and listen (on the handset and also to the speakers) for a pre-announce tone (single beep) followed
by your page (audio)
• Follow the same steps for ZONES TWO (02) and THREE (03). Dial [00] for All-Page.
• Set the Bogen amplifier to the desired volume level.