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Dip Switch Settings
Switch
Switch
Number
Description
1
Group assignment
2
Talk assist volume
3
Record Control
Balanced Battery Feed
4
Adjustment
From the observing port, any of the 24 lines or stations can be accessed by dialing a two digit Touch Tone code.
Stations being observed are unaware that they are being monitored. Automatic gain control equalizes in and outbound
conversation levels. If assistance is required, the observer can quickly enter the conversation by dialing a Touch Tone
"Q." An audio out jack provides a microphone level signal for a tape recorder while the record control jack provides
remote operation of the tape recorder on command. Up to 48 lines or stations may be monitored by parallel connecting
a second SO-24 to the observing port and assigning it as the high group (see Installation, section C).
A. Accessing the SO-24
The SO-24 provides balanced 12V talk battery on the observing wire pair. A manager or training supervisor may
access the SO-24 observing port from an unused trunk input on any PABX/KSU or via a dedicated Touch Tone
phone. The SO-24 may also be remotely accessed through one of Viking's Remote Access Devices (see
Installation section D).
B. Selecting a Line or Station
Once the observing port is accessed, select any of the 24 lines or stations by dialing the two digit code assigned to
that station (see Installation chart). Nothing can be heard by the station being observed. Select another station by
dialing a "#" followed by another two digit code. You may also hang up and then re-access the observing port to dial
another two-digit code.
C. Talk Assist
Though the SO-24 monitors silently, a manager may enter the conversation to provide assistance at any time by
dialing a "Q."
D. Tape Recorder
A remotely controllable tape recorder may be started and stopped when interfaced with the SO-24 using the
provided cables (see Installation). To start the recorder, dial a Touch Tone "9." To stop the recorder, dial a Touch
Tone "#" or hang up.
Recommended Tape Recorders: Radio Shack #14-1150, 14-1151 or 14-1053
Product Support Line...(715) 386-8666
Due to the dynamic nature of the product design, the information contained in this document is subject to change without notice., Viking
Electronics, its affiliates and/or subsidiaries assume no responsibility for errors and/or omissions contained in this information. Revisions of
this document or new editions of it may be issued to incorporate such changes.
Fax Back Doc # 690
Programming
ON/OFF
OFF - Low group (1 - 24)
ON - High Group (25 - 48)
OFF - Normal voice
ON - Reduced volume
OFF - Dial "9" to record
ON - Record control automatic
OFF - Normal
ON - For break-ups
Operation
Printed in the U.S.A.
1 2 3 4
SERVICE OBSERVING UNIT
1
2
3
4
ON
1
2
3
4
OFF
POWER
Fax Back Line...(715) 386-4345
VIKING
©
MODEL SO-24
VIKING ELECTRONICS, INC. HUDSON, WI 54016
ZF290250 Rev E
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