E. Connecting Multiple PA-2A’s
When more than 6 ringing lines are to be monitored or additional amplifiers need to be added, install as shown below,
using the
600 OHM AUDIO OUTPUT
connections.
PAGING - LOUD RINGING
AMPLIFIER SYSTEM
VIKING
ELECTRONICS
HUDSON, WI 54016
VIKING
©
MODEL PA-2A
POWER 13.8V
AC
1 2 3 4 5 6 7 8 9 10
NIGHT TRANSFER
SWITCH INPUT
PA
G
ING
HORN
600 OHM
AUDIO OUTPUT
TRUNK / P
AGING
PORT
DR
Y
CONT
ACT
CLOSURE INPUT
RINGING
VOLUME
MAX
MIN
1 - 3
4 - 6
RINGING LINES
1 2 3 4
TALK BATTERY
ALERT TONE
WARBLE / CHIME
PAGING
VOLUME
MAX
MIN
POWER
JP1
PAGING - LOUD RINGING
AMPLIFIER SYSTEM
VIKING
ELECTRONICS
HUDSON, WI 54016
VIKING
©
MODEL PA-2A
POWER 13.8V
AC
1 2 3 4 5 6 7 8 9 10
NIGHT TRAN
SFER
SWITCH INP
UT
PA
G
ING
HORN
600 OHM
AUDIO OUTPUT
TRUNK / P
AGING
PORT
DR
Y
CONT
ACT
CLOSURE INPUT
RINGING
VOLUME
MAX
MIN
1 - 3
4 - 6
RINGING LINES
1 2 3 4
TALK BATTERY
ALERT TONE
WARBLE / CHIME
PAGING
VOLUME
MAX
MIN
POWER
JP1
25AE Paging Horn
(included)
C. Contact Closure from Up to 6 Ringing Lines
When a 12V DC relay coil (Radio Shack part: # 275-248, not included) and 220
µ
F capacitor (Radio Shack part: # 272-
1017 or # 272-1029, not included) are connected as shown in the diagram to the right, the relay is activated for the
duration of each ring on 1-6 C.O. lines or analog PABX/KSU stations.
PAGING - LOUD RINGING
AMPLIFIER SYSTEM
VIKING
ELECTRONICS
HUDSON, WI 54016
VIKING
©
MODEL PA-2A
POWER 13.8
V AC
1 2 3 4 5 6 7 8 9 10
NIGHT TRANSFER
SWITCH INPUT
PA
G
ING
HORN
600 OHM
AUDIO OUTPUT
TRUNK / P
AGING
PORT
DR
Y
CONT
ACT
CLOSURE INPUT
RINGING
VOLUME
MAX
MIN
1 - 3
4 - 6
RINGING LINES
1 2 3 4
TALK BATTERY
ALERT TONE
WARBLE / CHIME
PAGING
VOLUME
MAX
MIN
POWER
JP1
Relay (Radio Shack
Part # 275-248)
220
µ
F Capacitor
Radio Shack
Part # 272-1017
or #272-1029
220
N.O.
N.C.
COM
PAGING - LOUD RINGING
AMPLIFIER SYSTEM
VIKING
ELECTRONICS
HUDSON, WI 54016
VIKING
©
MODEL PA-2A
POWER 13.8
V
AC
1 2 3 4 5 6 7 8 9 10
NIGHT TRAN
SFER
SWITCH INPUT
PA
G
ING
HORN
600 OHM
AUDIO OUTPUT
TRUNK / P
AGING
PORT
DR
Y
CONT
ACT
CLOSURE INPUT
RINGING
VOLUME
MAX
MIN
1 - 3
4 - 6
RINGING LINES
1 2 3 4
TALK BATTERY
ALERT TONE
WARBLE / CHIME
PAGING
VOLUME
MAX
MIN
POWER
JP1
25AE Paging Horn
(included)
8 Ohm
Com
(Very Long Run)
Radio Shack part #32-1031
2.5 Watt
Com
2.5 Watt
Com
8 Ohm
Com
D. Long Runs Between Amplifer and Speakers
Very long runs between the
PA-2A
and the speakers might require 70V
transformers (Radio Shack part #32-1031 or equivalent).
Note:
For additional information on how to minimize loss of audio in long
speaker runs, see
Fax Back Document 856
.
Note:
DIP switch 4 must
be in the
OFF
position.
