Rosewill RTK-T05, Руководство пользователя

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5 in 1 Cable Tester RTK-T05 User Manual
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telephone line. Most regular telephones made in the last 20 years are not polarity sensitive. So, even though the cable
is wired in reverse (crossed), it may work OK. Early touch-tone telephones and answering machines were polarity
sensitive. If connected in reverse polarity, the touch-tone phone my not dial out (no touch), and the answering machine
may not answering machine may not answer when the line rings.
The 5 in 1 says my RJ-11 phone cable is good, but my phone does not work. First, make sure the telephone line is
booked up and “love” by using a tester like the QT6314. This simple tester will verify the presence of loop current, and
will test the polarity of the line. The “good” cable may result in a reversed line. The QT6314 will show reversed if this is
the case. The line is not actually being reversed in the good cable it’s been reversed somewhere else along the wire.
Either the reversed cable can be located the corrected, or an often-used simpler approach is to replace the good cable
with a reversed cable, making the polarity come out correctly. It is also worth knowing that some female/female
couplers reverse the polarity of the phone line.
Analog telephones will usually work, regardless of line polarity. Digital phones are often polarity sensitive, and may not
work with reversed line polarity.
8. MAINTENANCE
Your 5 in 1 Cable Tester is a precision test instrument and, when used as described in this manual, should not require
maintenance. There are no internal adjustments. Calibration is not required. The clean the outside of the tester, use a
cloth dampened with a mild detergent solution. Do not use any abrasive cleanser, or chemical solvents that may
damage the case of the tester.
9. ACCESSORIES
The 5 in 1 cable tester includes the following items:
Main Unit
Remote
Female BNC Terminator
USB Adapter
Female/Male BNC Jumper Cable x 2
Male/Male RJ-11 Jumper Cable x 2
Male/Male RJ-45 STP Jumper Cable x 2
Instruction Manual
Carrying Bag
Thank you for purchasing a quality Rosewill Product.
Please register your product at : www.rosewill.com for complete warranty information and future support for your product.