Viking ls-4×4 Service Manual
Telecommunication Peripheral Products LS-4x4
Line Scanner
Technical Practice
March 11, 1999
Share Multiple Lines between Modems,
Fax Machines and Credit Card Readers
Eliminate the need for dedicated lines
with the LS-4x4 line scanner!
Each LS-4x4 will accept one to four
telephone lines and one to four
devices. Depending on the number of
line scanners cascaded, 1, 2, 3,
4...8...12 or more modems, credit card
readers, fax machines, etc., may share
one to four telephone lines or analog
PABX/KSU stations.
When a device, such as a modem, attached to a device port needs access to a
telephone line, the LS-4x4 will instantly scan for an open line starting from the last line
to the first line. When the LS-4x4 detects an open line, that line is routed to the device
port, while incoming calls may also be routed to a corresponding device port. If no
lines are available, a fast busy tone will be returned.
VIKING©
http://www.VikingElectronics.com
E-mail...Sales@VikingElectronics.com
Features
• Modular installation
• High speed modem compatible, copper wire
through will not cause a step down in speed
• Cascadeable to accommodate additional
devices
• Programmable to allow incoming calls
• Credit card reader compatible
• Reverse line scanning for compatibility with
rollover lines and hunt groups
• Provides fast busy signal when all lines are in
use
• One year warranty
Made in the U.S.A.
Sales...(715) 386 - 8861
Applications
Eliminate dedicated lines for...
• Modem pools
• Credit card readers
• Internet access
• Fax machines
• Courtesy phones
• Emergency phones (requires UPS)
• Information kiosks
Specifications
Power: 120VAC/13.8VAC 1.25A UL listed adaptor provided
Dimensions: 133mm. x 130mm. x 38mm. (5.25” x 5.1” x 1.5”)
Shipping Weight: 1.0 Kg (2 lbs 3 oz.)
Environmental: 0°C to 32°C (32°F to 90°F) with 5% to 95% non-
condensing humidity
Busy Tone: 500 Hz - 250 ms on/ 250 ms off
Talk Battery: 40V DC while lines are available, 12 V DC when all
lines are in use (for credit card reader line detection)
Connections: (4) RJ-14 jacks, (4) RJ-11 jacks
Installation
1 to 4 C.O. lines
120V AC
Standard Configuration Rear View
120V AC
Optional 2nd Level LS-4X4 Rear View
or analog
PABX/KSU
extensions
POWER
USE ONLY LISTED
CLASS 2 POWER
SOURCE 12 VDC,
13.8
500 mA MAX
VAC
Line 1 (Red/Green)
Line 2 (Yellow/Black)
Line 3 (Red/Green)
Line 4 (Yellow/Black)
IN IN
LINE 1-2 LINE 3-4 LINE 1-2
LINE 3-4
13.8
POWER
USE ONLY LISTED
CLASS 2 POWER
SOURCE 12 VDC,
500 mA MAX
VAC
(2) RJ-14 Line Cords
(included)
IN
LINE 1-2 LINE 3-4 LINE 1-2
Note: Radio Shack part # 279-4011 combines two RJ-11’s (one line) into one RJ-14 (two lines).
Phone
Standard Configuration
Front View
VIKING©
DEV 1 DEV 4DEV 3DEV 2
LINE SCANNER
MODEL LS-4 X 4
PWR RING IN
1 2 3 4
Hayes
pwr
Modem
28.8
aa cd oh io mr
Credit Card
Reader
10000332
123
456
789
#
0Q
Optional 2nd Level LS-4X4
Front View
VIKING©
DEV 1 DEV 4DEV 3DEV 2
OUTOUT
LINE 3-4
LINE SCANNER
MODEL LS-4 X 4
1 2 3 4
PWR RING IN
To
Additional
LS-4x4
Line Scanners
Modem
Hayes
pwr aa cd oh io mr
28.8
10000332
123
456
789
#
0Q
Hayes
pwr aa cd oh io mr
Modem
28.8
Fax Machine
Hayes
pwr aa cd oh io mr
Modem
28.8
Credit Card
Reader
Programming
Incoming calls on each line can be routed to their corresponding device port by turning the appropriate dip switch on.
Note: It is recommended that incoming calls be connected to the lower device ports.
Front View of the LS-4X4
VIKING©
DEV 1 DEV 4DEV 3DEV 2 PWR RING IN
Dip Switch
1
2
3
4
Position
ON
ON
ON
ON
LINE SCANNER
MODEL LS-4 X 4
1 2 3 4
Example
All incoming calls on LINE 1 will ring DEV 1
All incoming calls on LINE 2 will ring DEV 2
All incoming calls on LINE 3 will ring DEV 3
All incoming calls on LINE 4 will ring DEV 4
Line 1
Line 2
1432
O
N
Line 3
Line 4
ON (Enable)
OFF (Disable)
Product Support...(715) 386-8666 Fax Back Line...(715) 386-4345
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 # 270
Printed in the U.S.A.
ZF300850 Rev C
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