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AT&T 0II722050-917 Appendix BAT&T PagePal Functional Diagram

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Appendix B—AT&T PagePal Functional Diagram

PAGING EQUIPMENT INTERFACE

(PagePal)

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DRY LINE LEVEL INPUT WITH

CONTACT CLOSURE FROM

AMPLIFIED MIC, RECORDED

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P1 CONTACTS

ANNOUNCEMENTS, RADIO,

ETC.

P1

ATTENDANT INPUT LEVEL

600 OHM

0dB

MUSIC SOURCE

100K OHM

0dB

TELEPHONE INTERFACE

P6

MUSIC INPUT LEVEL

300 OHMS

20dB

TIP 300 OHMS

LOOP START or GROUND START

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RING -24VDC TALK BATTERY P3

STATION or CENTREX

CLOSED @ P1 THROUGH P5

VOX TIMEOUT

MAX. TIMEOUT

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C1

DRY LOOP (PAGE PORT)

CONTACT CLOSURE TONE 1

CONTACT CLOSURE TONE 2

TONE GEN

P2, 4, or 5

CONTACT CLOSURE OPTION JUMPERS NIGHT BELL

RING DETECT & OTHER TONES

NIGHT SELL AC/DC DETECT

POWER SUPPLY

115 VAC

OUTPUT TO

POWER AMP(s)

REMOTE AMP

CONTROL

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Figure B-1. AT&T PagePal Functional Diagram

B-1

Contents

Main ii Contents Page Descrption LEVEL CONTROLS PagePal Figure 1-1. Front View of the AT&T PagePal Features Page Page Important Safety Instructions WARNING: General Information of Recorder Logging Balanced to Unbalanced Connections Modular Telephone Jack PAGEPAL Figure 2-1. Typical Connections to the AT&T PagePal Connectors (Rear Panel View) 2-6 Installation Page Table 2-2. AT&T PagePal J2 Terminal Block Connector Terminal Description 2-8 Installation Wall Mount Instructions Figure 2-2. Wall Mounting Adjustments Slide Switch Level Controls Attendant Input Music Input Troubleshooting Use Table 2-3 to assist in locating possible problems. 2-12 Installation Table 2-3. AT&T PagePal Troubleshooting Suggestions Installation 2-13 Table 2-3. PagePal Troubleshooting Suggestions (continued) 2-14 Installation Installation 2-15 2-16 Installation Appendix AFCC Regulations and Warranty FCC RegulationsPart 15 Radio Frequency Interference FCC RegulationsPart 68 Page Warranty Information Limited Warranty and Limitation of Liability Page Appendix BAT&T PagePal Functional Diagram PAGING EQUIPMENT INTERFACE Figure B-1. AT&T PagePal Functional Diagram Appendix CSecondary Circuit Protection Important Information Safety Information Installation Steps Figure C-2. PageGuard Installation Secondary Circuit Protection C-3