Viking PA-30 Technical Practice page 5
30 watt paging amp with loud ringing
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Also See for PA-30:
- Design manual (12 pages) ,
- Application note (1 page) ,
- Product manual (8 pages)
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E. Additional Paging Power
When more than (30) 8 ohm speakers are required, an additional PA-30 can be added.
Step 1. Connect the main PA-30 as described on previous pages.
Step 2. Move the talk battery DIP switch to the OFF position (DIP switch 1)
Step 3. Connect the main PA-30 600 Ohm Output (pins 5 and 6) to a second PA-30 Page In (pins 9 and 10).
Step 4. Add a jumper wire across the Page Contact (pins 11 and 12) of the second PA-30.
Up to (15)
8 Ohm Speakers
(not included)
Up to (15) more
8 Ohm Speakers
(not included)
F. 70 Volt Speakers
Step 1. Connect pins 1 and 4 to the 70 volt speakers.
Step 2. For increased volume levels change the
speaker's "tap" to a higher power level.
Note: For information on speakers to use, ambient noise levels
and speaker wiring, see Fax Back Document 498.
G. Very Loud Paging
If very loud paging is required, one or two 8-Ohm speakers
can be connected in a way that provides 6dB of additional
speaker volume.
Connect one or two 8-Ohm speakers to pins 1 and 4.
Note: For information on speakers to use, ambient noise levels and
speaker wiring, see Fax Back Document 498.
Main PA-30
VIKING
MODEL PA-30
©
MASTER
VOLUME
VIKING
ELECTRONICS
HUDSON, WI 54016
MIN
MAX
30 WATT TELECOM
PAGING AMPLIFIER
LOUD RINGING
70V OUT
1 2 3 4 5 6
7 8 9 10 11 12 13 14 15 16 17
LED2
LED4
LED3
LED5
on
1
2
3
4
+ SPKR -
+ SPKR -
600 OHM
PAGE
RINGING
AUX IN
PAGE IN
CC
NT
70V OUT
OUTPUT
CONTACT
LINE
Up to (15)
8 Ohm Speakers
(not included)
Up to (15) more
8 Ohm Speakers
(not included)
Second PA-30
VIKING
MODEL PA-30
©
VIKING
ELECTRONICS
HUDSON, WI 54016
30 WATT TELECOM
PAGING AMPLIFIER
70V OUT
1 2 3 4 5 6
7 8 9 10 11 12 13 14 15 16 17
LED2
LED4
LED3
on
1
2
3
+ SPKR -
+ SPKR -
600 OHM
PAGE
AUX IN
PAGE IN
70V OUT
OUTPUT
CONTACT
Up to (50) 70V
Speakers
(not included)
One or two 8 Ohm
Speakers
(not included)
MASTER
VOLUME
MIN
MAX
LOUD RINGING
LED5
4
RINGING
CC
NT
LINE
Note: For information on speak-
ers to use, ambient noise levels
and speaker wiring, see Fax
Back Document 498.
VIKING
MODEL PA-30
©
MASTER
VOLUME
VIKING
ELECTRONICS
HUDSON, WI 54016
MIN
MAX
30 WATT TELECOM
PAGING AMPLIFIER
LOUD RINGING
70V OUT
1 2 3 4 5 6
7 8 9 10 11 12 13 14 15 16 17
LED2
LED4
LED3
LED5
on
1
2
3
4
+ SPKR -
+ SPKR -
600 OHM
PAGE
RINGING
AUX IN
PAGE IN
CC
70V OUT
OUTPUT
CONTACT
LINE
VIKING
MODEL PA-30
©
MASTER
VOLUME
VIKING
ELECTRONICS
HUDSON, WI 54016
MIN
MAX
30 WATT TELECOM
PAGING AMPLIFIER
LOUD RINGING
70V OUT
1 2 3 4 5 6
7 8 9 10 11 12 13 14 15 16 17
LED3
LED2
LED4
LED5
on
1
2
3
4
+ SPKR -
+ SPKR -
600 OHM
PAGE
RINGING
AUX IN
PAGE IN
CC
NT
70V OUT
OUTPUT
CONTACT
LINE
NT
5
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