VIKING
Model: xxxxxxxxx
V
iking Electronics, Inc. (715) 386-8861
1531 Industrial St., Hudson, WI 54016
www
.vikingelectronics.com DOD#
S/N: XXXXXXXX
P/N:
DEV
:
xxxxxxxx
RoHS
Internal View of the VR-1B
12V DC
Adapter
(included)
(2) #6x3/4 panhead
screws (included)
R1
R5
R2
R15
C2
C1
C3
1
34
2
ON
Standard
Analog Phone
(not included)
Optional Radio Shack
#279-008 "T" Adapter
(not included)
1
34
2
ON
ON OFF
"Stutter" dial tone detection may
require adjusting the sensitivity.
Start with this trim pot in the
center position.
OR
Analog
Phone Line
Modular Cord
(included)
A
A
p
p
p
p
l
l
i
i
c
c
a
a
t
t
i
i
o
o
n
n
s
s
Connect an analog phone line modular cord into the
VR-1B
’s “LINE IN” jack (or hardwire tip and ring to the screw ter-
minals). Plug the 12V DC power supply into the
VR-1B
’s “12VDC” jack (or hardwire to the screw terminals). The
VR-
1B
will flash to indicate ringing, light steady when the phone is off hook, follow the cadence of 90 to 125V message
waiting voltage, and gives a “stutter” flash if message waiting “stutter” dial tone is detected. The 4 position DIP Switch
can be used to enable / disable different features as shown below. An optional “T” adapter can be used for the
VR-1B
to share the modular plug with a phone.
Switch 1
OFF
ON
OFF
ON
Switch 2
OFF
OFF
ON
ON
Description
Normal Mode (factory setting): The
VR-1B
functions as described above.
Both ring detect and 90 to 125V message waiting voltage detect are disabled.
Off hook detect is disabled.
PBX Stutter Dial Tone Detect Only Mode: Interrogates idle line for stutter dial tone every 30 seconds.
Switch
3
3
Position
ON
OFF
Description
Always-On Mode enabled: Whenever power is applied to the
VR-1B
the red LED will illuminate.
Normal Mode (factory setting).
Switch
4
4
Position
ON
OFF
Description
Disable stutter dial tone detect. The
VR-1B
will never interrogate the line for stutter dial tone.
Stutter dial tone detection functions normally (factory setting).
A. Analog Phones
