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AT&T 0II722050-917 Telephone User Manual

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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

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