Printed in the U.S.A.
ZF290030 Rev D
Fax Back Doc # 670
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.
Product Support Line...(715) 386-8666 Fax Back Line...(715) 386-4345
F. Trouble Shooting
1. Touch Tone Diagnostics
2. LED, Ring, and Communication Diagnostics
a. Set dip switches as shown at the right.
b. Press the RESET button.
c. The display should begin lighting each LED
on the display in consecutive order.
d. Once all LED’s are on, the display will turn
each LED off in consecutive order. Ringing
should also be heard.
Note: The volume is adjustable.
3. Checking the Sensitivity of the LM-24M
a. Set dip switches as shown at the right.
b. Press the RESET button.
c. Go off-hook on the attendant’s phone.
d. The “Data” LED on the scanner should produce a
steady light while off-hook and go off completely
when hung-up.
Operation
The LM-24S system consists of two modules: the LM-24D display which is located at the answering position and the
LM-24M scanner which is located in the telephone equipment room. Up to three LM-24D displays may be connected to
one LM-24M scanner without optional PS-2 power supplies. The communications link between the display and the
scanner is a single pair of telephone wires. The scanner connects to all station ports that are to be monitored.
The LM-24S provides a visual “idle and “in-use” LED as well as visual and audible ring indication for up to 24 C.O. lines
or analog PABX/KSU station ports. The system helps to eliminate confusion by providing a programmable ring
indication on a per-line basis. The LM-24S is designed to be used at department answering positions, message centers
or any system with directed call pickup, call forward on busy/no answer and for back up attendants.
The LM-24S scans all station circuits providing real time updated information for the attendants.
a. Set dip switches as shown to the right.
b. Press the RESET button.
c. From the attendant’s phone, dial a Touch
Tone 1.
d. The first LED on the LM-24D display should light.
e. From the attendant’s phone, dial a Touch Tone 2.
f. The second LED on the LM-24D display should light, etc.
Note: A
✱
on the attendant’s phone is LED 11 on the LM-24D and # on the attendant’s phone is LED 12.
VIKING
©
MODEL LM-24M
VIKING ELECTRONICS, INC. HUDSON, WI 54016
LINE STATUS MONITOR
SCANNER
RJ21X
POWER DATA
RESET
1 2 3 4
COM
EARTH
GND
1 2 3 4
ON
OFF
VIKING
©
MODEL LM-24M
VIKING ELECTRONICS, INC. HUDSON, WI 54016
LINE STATUS MONITOR
SCANNER
RJ21X
POWER DATA
RESET
1 2 3 4
COM
EARTH
GND
1 2 3 4
ON
OFF
VIKING
©
MODEL LM-24M
VIKING ELECTRONICS, INC. HUDSON, WI 54016
LINE STATUS MONITOR
SCANNER
RJ21X
POWER DATA
RESET
1 2 3 4
COM
EARTH
GND
1 2 3 4
ON
OFF
Note: In order to attempt diagnostics tests 1 or 3, a C.O. line or analog station port must be connected to the
attendant port (pins 25 and 50 - V/S and S/V), as described above to access programming. Diagnostic test 2 does
not require any connections to the RJ-21X.
SENS
ADJUST
SENS
ADJUST
SENS
ADJUST
