7
Installation Manual
405899972
AT&T

UPAM

MODE
24 VDC PWR SUPPLY
48 VDC PWR SUPPLY
CONFIRMATION TONE
PREANNOUNCE TONE
VOX DISABLE
VOX ENABLE
—
S1,S2
S3
S4
S5
—
S1,S2
—
S4
S3
—
S5
PAGE PORT
INPUT
Universal Paging Access Module
BGM
IN
OFF
ON
T
PHONE SYSTEM
R
+M
EXT VOX ENABLE
-M
PT
PAGING OUTPUT
PR
CONTACT CLOSURE
N.O.
COM
POWER SUPPLY
+24/48
-24/48
MODE
SWITCHES
BGM
VOL
MIN
MAX
MIN
MAX
MIN
MAX
CONTACT CLOSURE B
N.O.
COM
TONE VOL. VOX DELAY PAGING TIME

405742735 ●

117 V
200 mA
60 Hz
MODEL PRS-48
CAUTION: FOR INDOOR USE ONLY
48 V
200mA AC

PBX

GROUND START

TRUNK PORT

R

T

PBX GND

+-
GND
Trunk Port Connections – Ground Start