Transcript
PagePac
®
Issue 1
by
MULTI-ZONE MICROPHONE V-5335405 INTRODUCTION Your high fidelity desk microphone provides high quality, low noise single and multi-zone paging capability to existing paging products. A cardioid electret element suppresses background noise, and is housed on the end of a flexible tube. You can page through a momentary push-button for short pages, or make a long page with a lock-on button. Front panel LEDs indicate paging status (see Figure 1).
deactivate. On the multi-zone model, use the DTMF pad to select zone addresses or implement paging features; Refer to your Page Controller Manual for zone options. The three LEDs on the front panel show paging status. A flashing yellow LED indicates a long term page. The red LED indicates a busy condition on the system. The green LED indicates that the microphone is on and ready to initiate a page (even when the unit is paging). The volume can be adjusted by using the screwdriver-accessible output level at the back panel (see Figure 2).
The back panel is shown in Figure 2. An attached wall socket transformer provides power to the unit. Connections for tip and ring, busy buss, and dry contact closure are made at a compression screw terminal block. You can adjust the output volume level by screwdriver. The multi-zone model has a switch for selecting dedicated single zone paging.
SPECIFICATIONS FEATURES • • • •
DTMF Pad for Multi-Zone Access Can be Switched to Dedicated Single-Zone Momentary Push or Lock-On Page Button Front Panel LEDs
INSTALLATION The microphone has rubber feet for placing directly on a desktop. Connect the transformer to a standard 120 VAC 60 Hz wall socket. Figure 3 shows the wiring connections at the microphone terminal block. Multiple microphones may be wired to an amplifier in either a star or daisy chain configuration, as shown in Figure 4. Choose the configuration that minimizes the length of wiring runs. Figure 5 shows the wiring diagram for connecting microphones to a PagePac D-Series AmpliCenter amplifier. An additional terminal block is recommended with the star configuration for connecting the various incoming wires at the amplifier end.
Power Requirements • 120 VAC, 60 Hz
Dimensions/Weight • Base: 7”W x 3”H x 5”D (17.78cm x 7.62cm x 12.7cm) Gooseneck: 14”H (35.56cm) • 2.50 lbs (1.13 kg)
OPERATION To make a short page, press and hold the larger, momentary contact push-button. To make a longer page, press the smaller locking push-button; when the page is over, press this push-button again to
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TECHNICAL ASSISTANCE
Note: The shielding for the wires should NOT be connected to the GND screw at any microphone in the star configuration.
When calling, have a VOM and a telephone test set available and call from the job site. Call (540) 427-3900 and ask for PagePac Technical Support, or call (540) 427-6000 for Valcom 24-hour Automated Support or visit our websites at http://www.pagepac.com and www.valcom.com.
Note: The Shield should remain continuous to the end of the wire run and should only be grounded at the amplifier. Figure 6 shows the wiring diagram for connecting microphones to a Paging Controller Unit.
Should repairs be necessary, attach a tag to the unit clearly stating company name, address, phone number, contact person, and the nature of the problem. Send the unit to: Valcom, Inc. PagePac® Repair Dept. 5614 Hollins Road Roanoke, VA 24019-5056
CARDIOID ELECTRET CONDENSER ELEMENT WITH HIGH SUPPRESSION OF BACKGROUND NOISE
TOUCHTONE PAD FOR MULTI-ZONE ACESS LED INDICATORS
MOMENTARY PUSHBUTTON FOR SHORT PAGES
LOCKING PUSHBUTTON FOR LONG PAGES
Figure 1. Multi-Zone Microphone Features
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Normally Open Contacts
Busy Buss for Multiple Microphones
Output
SCREWDRIVER-ACCESSIBLE VOLUME CONTROL
SWITCH FOR DEDICATED SINGLE-ZONE PAGING
ON Single Zone Page
Mic Level Control
OFF V-5335405 Ref. No. 22700-003 Valcom, Inc. Roanoke, VA 24019-5056
COMPRESSION SCREW TERMINAL BLOCK
CABLE CONNECTED TO WALL SOCKET TRANSFORMER PROVIDES 12 VAC
Figure 2. Back Panel Controls and Connectors
Enlarged View
GND
OUTPUT
BUSY BUSS
CONTACT CLOSURE
Figure 3. Wiring Connections on Microphone Terminal Block
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DAISY CHAIN WIRING
STAR WIRING
SHIELDED WIRE NO SMALLER THAN 24 AWG. NO GREATER THAN 1000 FT. TOTAL TO LAST MICHROPHONE
AMPLIFIER
AMPLIFIER
SHIELDED WIRE NO SMALLER THAN 24 AWG UP TO 1000 FT.
Figure 4. Star or Daisy Chain Wiring Configurations
RIGHT
GROUND
MUSIC IN
TIP LEFT
RING
C1
D SERIES AMPLICENTER TERMINAL BLOCK
PAGE IN GROUND
+
GROUND -
70 V OUT
RIGHT
GROUND
MUSIC IN
TIP LEFT
RING
C1
GROUND
GROUND -
+
70 V OUT PAGING IN
SHIELD
GND
C C -
+
BUSY +
BUSY -
MIC 1
GND
C C -
+
BUSY +
BUSY -
MIC 2
GND
C C -
+
BUSY +
BUSY -
MIC 3
GND
C C -
+
BUSY +
BUSY -
MIC 4
SHIELD TERMINAL BLOCK R66B
GND
STAR WIRING
C C -
+
BUSY +
BUSY -
DAISY CHAIN WIRING
(ALL OTHER MICROPHONES ARE ATTACHED IN A SIMILAR MANNER TO THE TERMINAL BLOCK))
R66B
Figure 5. Typical Connections to a D-Series AmpliCenter 0dBm 0dBu
N .B .
AA
PAGING CONTROLLER TERMINAL STRIP SHIELD
DAISY CHAIN WIRING (REFER TO FIGURE 5 FOR TYPICAL STAR WIRING CONFIGURATION)
GND
C C - +
BUSY +
BUSY -
MIC 1
GND
C C - +
BUSY +
BUSY -
MIC 2
GND
C C - +
BUSY +
BUSY -
MIC 3
GND
C C - +
BUSY +
BUSY -
MIC 4
Figure 6. Typical Connections to Paging Controller Unit
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