F o r P r o f e s s i o n a l s . . . S i n c e 1 8 5 7
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LAN Scout™ Jr.
Instruction Manual
GENERAL SPECIFICATIONS
The Klein Tools LAN Scout™ Jr. is a portable data cable tester. It tests and
troubleshoots RJ45 terminated cables and provides built-in tone generation
for cable tracing.
• Dimensions: 4.6" x 2.3" x 1.1" (11.7 x 5.8 x 2.8 cm)
• Weight:
• Operating Temperature: 0°C / 32°F to 50°C / 122°F
• Storage Temperature: -20°C / -4°F to 60°C / 140°F
• Humidity: 10% to 90%, non-condensing
• Maximum Voltage between any two connectors pins without damage:
• Battery Life typical: 6V alkaline batteries - 4 x LR44
• Cable Types: Shielded or Unshielded; Cat-7, Cat-6x, Cat-5E, Cat-5,
• Maximum RJ Cable Length: 0 to 1000 feet (305 meters)
• Minimum Cable Length for Split Pair Detection:
To ensure safe operation and service of the tester, follow these instructions.
Failure to observe these warnings can result in severe injury or death.
• The LAN Scout™ Jr. is designed for use on unenergized cabling
• Poorly terminated RJ plugs have the potential to damage the jack on
4.0 oz. (115 grams) with battery and remote
• RJ Jack: 66V DC or 55V AC
• Standby: 3.5 years
• Active: 80 hours
Cat-4, Cat-3
1.5 feet (0.5 meters)
WARNINGS
systems. Connecting the LAN Scout™ Jr. to live AC power may
damage it and pose a safety hazard for the user.
the LAN Scout™ Jr. Visually inspect a RJ plug before inserting it into
the tester. The contacts should always be recessed into the plastic
housing of the plug. Plugging 6-position plugs into the 8-position
jack on the tester has the potential to damage the outer-most
contacts of the jack unless the plug is specifically designed for
that purpose.
WARNINGS:
Always wear approved eye protection.
Do NOT use on energized circuits.
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DISPLAY
7
1
2
5
6
3
4
1. Pass: “Pass” illuminates if the cable is a properly wired 4-pair
T568A/B data cable or cross-over (uplink) cable. A cross-over
cable will have the pin numbers of the crossed pairs flashing and
will alternate with “C”.
2. Cable Faults: The “Miswire” icon illuminates if the cable is not
wired to one of the cabling standards. An open or short error takes
precedence over miswires and the appropriate icon(s) illuminates.
The “Split” icon illuminates if the designated pairs are not twisted
together in the cable, an AC signal fault.
3. Tester-End Wire Map: The top line displays the pins on the tester
end in order. These pins are mapped to the pins on the remote-end
shown directly below them on the LCD.
4. Remote-End Wire Map: The bottom line displays the
corresponding pin on the remote-end. Dash lines on the remote
line indicate shorted pins. No pin numbers displayed on the remote
line are open pairs.
5. Battery Low: The battery low symbol illuminates when the
battery is nearing depletion. The symbol will begin to flash
when the battery needs to be replaced. Results may be unreliable
at this point.
6. Shield: The “S” icon illuminates when a shielded data cable is
properly connected at both ends. It will be flashing if there is a
short to a wire in the cable along with that pin number and the
“Short” indicator.
7. Voltage Detected Warning: If voltage is detected on any of the
tester connectors, the “Voltage!” icon illuminates. A check for
voltage is performed before each test and if found, no test is run.
The tester should be disconnected immediately from the source
of the voltage.
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CONTROL BUTTON
The LAN Scout™ Jr. has a single button to both start a test and select other
functions and options. Presses of less than about 1 second (short press)
and more than 1 second (long press) are recognized differently.
1. Cable Testing (short press): With the LAN Scout™ Jr. off, each short
press of the button causes a cable test to be executed and the results
displayed for 20 seconds before powering off. “TEST” is displayed
while testing is being performed. If another short press occurs
before the 20 second time out another test and 20 second time out
begin. If the button is pressed and held until “LOOP” is displayed and
then released, tests are run continuously and the display updated.
The LAN Scout™ Jr. will turn off automatically if there is no test
result change for 5 minutes. A long press of the button will cause
the LAN Scout™ Jr. to exit cable test loop mode and enter mode
selection as discussed below.
2. Mode Selection (long press): Starting with the LAN Scout™ Jr. off, a
long press of the button will cause the LAN Scout™ Jr. to enter mode
selection. In mode selection the LAN Scout™ Jr. cycles through cable
test and tone generator modes. The mode displayed when the button
is released will begin execution. From powered off, the modes in
order are:
• LOOP: Cable test that loops continuously until it times out or
is exited by a long press that reenters mode selection. Used to
troubleshoot intermittent problems.
• Four Tone Cadences (Hi Lo 1, Hi Lo 2, Hi, Lo): The next four
modes are all tone generator modes with different sounds. The
“Hi Lo” tones are made up of two frequencies with different
timings. “Hi” and ”Lo” are single frequency. Once in a tone mode,
short presses change the pins carrying tone. The pins with tone
are displayed. In a tone mode, the Jr. will turn off automatically
30 minutes after the last button press or by exiting to mode select
with a long press.
• OFF: When the button is released with “OFF” displayed, the Jr.
will power off. Once in one of the above modes, OFF is the first
mode offered upon exiting to mode select. To select a different
mode other than OFF, continue to hold the button down and the
next mode in rotation will be displayed next.
• CABLE: The cable test mode is the single cable test mode with 20
second timeout that a short press from powered off executes.
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WIRING AND DISPLAY EXAMPLES
Properly W i re d T568A UTP:
Tester
T568B is electrically identical to
T568A, but swaps the green and
orange pairs. Either standard will
work as long as the same standard
is used at both ends of a run or
patch cable. Mixing “A” and “B”
creates a cross-over cable.
T568A Cab l e w ith Split Pai r s :
Tester
Remote
Remote
A common error in building a cable
is to put all the pairs in pin sequence
1-2, 3-4, 5-6 and 7-8. This will
produce the correct continuity, but
the pairs are designated to be on
pins 3-6 and 4-5 in the middle of
the connector for compatibility with
phone wiring. This wiring error is
only detected by the split pair test
since the designated pairs are not
twisted together.
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WIRING AND DISPLAY EXAMPLES
T568A Cab l e w ith a Short a n d Open:
Tester
The 1-2 pair pins are shorted
together and the 7-8 pair is
open. The pins with the errors
are flashing. Dash lines (-) on
the bottom (remote) display
line indicate the short, while
no numbers on the bottom
line indicate the open pair.
T568A Cab l e w ith a Miswire a nd
Unrecogni z e d Continuity:
Tester
Remote
Remote
T568A Cable with a miswire and
unrecognized continuity: Pins 1
and 2 on the LAN Scout™ Jr.
are connected to pins 2 and 1 at
the remote-end. The pins with this
error are flashing. The “U” for the
remote pin numbers indicates an
unrecognizable continuity was
detected that is neither a short
or open.
FLASHING
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BATTERY REPLACEMENT
1. Remove single screw in the middle of the back of the LAN Scout™
Jr. with a #0 Phillips head screwdriver. Remove battery door.
2. Recycle exhausted batteries. Hitting the palm of your cupped
hand with the back of the LAN Scout™ Jr. will usually dislodge the
batteries from the compartment.
4. Insert batteries into battery compartment with the battery plus sign
(+) in the direction of the plus sign on the case (the spring contact is
negative and the button contact is positive). Inserting the last battery
in the middle of the stack is the easiest.
5. Replace battery door and screw, taking care not to over-tighten it.
WARRANTY
This product is warranted to be free from defects in materials and workmanship for a period of two years from the date of purchase. During this
warranty period, Klein Tools has the option to repair or replace or refund
the purchase price of any unit which fails to conform to this warranty
under normal use and service. This warranty does not cover damage which occurs in shipment or failure which results from alteration,
tampering, accident, misuse, abuse, neglect, or improper maintenance.
Batteries and damage resulting from failed batteries are not covered by
warranty. A purchase receipt or other proof of original purchase date will
be required before warranty repairs will be rendered.
Any implied warranties, including but not limited to implied warranties
of merchantability and fitness for a particular purpose, are limited to the
express warranty. Klein Tools shall not be liable for loss of use of the
instrument or other incidental or consequential damages, expenses, or
economic loss, or for any claim or claims for such damage, expenses or
economic loss.
Some states or countries laws vary, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights,
and you may also have other rights which vary from state to state. If
your Klein product requires repair or for information on how to exercise
your rights under the terms of this warranty, please contact Klein Tools
at 1-800-553-4676.
CLEANING
Turn instrument off and disconnect any cables. Clean the instrument by
using a damp cloth. Do not use abrasive cleaners or solvents.
STORAGE
Remove the batteries when instrument is not in use for a prolonged
period of time. Do not expose to high temperatures or humidity. After a
period of storage in extreme conditions exceeding the limits mentioned
in the Specifications section, allow the instrument to return to normal
operating conditions before using it.
DISPOSAL / RECYCLE
Caution: This symbol indicates that equipment and its
accessories shall be subject to a separate collection and
correct disposal.
CUSTOMER SERVICE
KLEIN TOOLS, INC.450 Bond Street Lincolnshire, IL 60069