AT&T 0II722050-917 installation manual Appendix B-AT&T PagePal Functional Diagram

Appendix B—AT&T PagePal Functional Diagram

PAGING EQUIPMENT INTERFACE

(PagePal)

— — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —

I

I

DRY LINE LEVEL INPUT WITH I

I

CONTACT CLOSURE FROM

P1

CONTACTS

I

AMPLIFIED MIC, RECORDED I

ANNOUNCEMENTS, RADIO,

I

ATTENDANT INPUT LEVEL

P1

I

ETC.

I

I

600 OHM

0dB

I

I

I

MUSIC INPUT LEVEL

P6

I

MUSIC SOURCE

I

100K OHM

0dB

I

I

300 OHMS

I

I

I OUTPUT TO

20dB

TIP

I

TELEPHONE INTERFACE

300 OHMS

I POWER AMP(s)

I

LOOP START or GROUND START

I

RING

-24VDC TALK BATTERY

I

P3

I

I

STATION or CENTREX

CLOSED @ P1 THROUGH P5

I

VOX TIMEOUT

REMOTE AMP

MAX. TIMEOUT

C

I

I CONTROL

I

C 1

I

DRY LOOP (PAGE PORT)

I

I

CONTACT CLOSURE

I

TONE 1

I

I

TONE 2

TONE GEN

P2, 4, or 5

I

CONTACT CLOSURE

CONTACT CLOSURE

OPTION JUMPERS

I

I

RING DETECT

NIGHT BELL

POWER SUPPLY

& OTHER TONES

115 VAC

NIGHT SELL

I

I

AC/DC DETECT

I

I

I— — — — — — — — — — — — — — — — — — — — — — — — — — — — — —I

Figure B-1. AT&T PagePal Functional Diagram

B-1