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2. Dry Contact (Common Audible) Closure (contacts not included)
Step 1. Connect the dry contact closure to pins
3 and 4.
Step 2. A dry contact closure will initiate loud
ringing.
Note: For information on speakers to use, ambient
noise levels and speaker wiring, see Fax Back
Document 498.
3. Night Transfer (Loud Ringing) Switch (switch not included)
A Night Transfer Switch may be used to enable or disable loud ringing.
a. Ringing Analog Lines
Connect the night transfer switch to terminal pins 1 and 2. When the switch is on (closed), loud ringing is dis-
abled. When the switch is off (open), loud ringing is enabled.
Ringing Line Input Wiring
Lines 1-3
RJ25
Green
Line 1
Red
Yellow
Line 2
Black
Blue
Line 3
White
Note: For information on speakers to use, ambient noise levels and speaker wiring, see Fax Back Document 498.
b. Dry Contact Closure with Night Transfer (Loud Ringing) Switch
Interface the night transfer switch in
series with the contact closure. When
the switch is on (closed), loud ringing is
enabled. When the switch is off (open),
loud ringing is disabled.
Note: For information on speakers to use,
ambient noise levels and speaker wiring,
see Fax Back Document 498.
Dry Contact Closure
(not included)
Lines 4-6
RJ25
Green
Line 4
Red
Yellow
Line 5
Black
Blue
Lines 4, 5 and 6
Line 6
White
Lines 1, 2 and 3
Dry Contact Closure
(not included)
Night Transfer (Loud Ringing) Switch
VIKING
MODEL PA-2A
©
PAGING
VOLUME
VIKING
ELECTRONICS
HUDSON, WI 54016
MIN
MAX
PAGING - LOUD RINGING
AMPLIFIER SYSTEM
AUDIO LOADING
1 2 3 4
5 6
TALK BATTERY
ALERT TONE
PWR
WARBLE / CHIME
RINGING LINES
1 - 3
4 - 6
1 2 3 4 5
1
2
3
4
5
VIKING
MODEL PA-2A
©
PAGING
VOLUME
VIKING
ELECTRONICS
HUDSON, WI 54016
MIN
MAX
PAGING - LOUD RINGING
AMPLIFIER SYSTEM
AUDIO LOADING
1 2 3 4
TALK BATTERY
ALERT TONE
WARBLE / CHIME
RINGING LINES
1 - 3
4 - 6
1 2 3 4 5
1
2
3
VIKING
MODEL PA-2A
©
RINGING
PAGING
VOLUME
VOLUME
VIKING
ELECTRONICS
HUDSON, WI 54016
MIN
MAX
MIN
PAGING - LOUD RINGING
AMPLIFIER SYSTEM
AUDIO LOADING
1 2 3 4
5 6
TALK BATTERY
ALERT TONE
PWR
WARBLE / CHIME
RINGING LINES
1 - 3
4 - 6
1 2 3 4 5
1
2
3
4
5
6
(not included)
RINGING
VOLUME
MIN
MAX
7 8
9 10
25AE Paging Horn
(included)
6
7
8
9
10
RINGING
VOLUME
MIN
MAX
5 6
7 8
9 10
25AE Paging Horn
PWR
(included)
4
5
6
7
8
9
10
Night Transfer (Loud Ringing)
Switch (not included)
MAX
7 8
9 10
25AE Paging Horn
7
8
9
10
(included)
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