Safety Information
3
1788-UM002A-US-P – April 2000
ATTENTION: To avoid possible fire, electric shock, personal injury, or damage to the MediaChecker:
•
Do not connect the MediaChecker to any telephony inputs, systems, or equipment, including ISDN. Doing
so is a misapplication of this product, which can result in damage to the instrument and create a potential
shock hazard to the user.
•
Do not connect the MediaChecker to active inputs, systems, or equipment. Doing so is a misapplication of
this product, which can result in damage to the instrument and create a potential shock hazard to the
user. Disable network power sources and all communication nodes before connecting the MediaChecker.
•
Do not apply more than 25 V dc to any MediaChecker input. Use caution when connecting the
MediaChecker to a network, as voltages greater than 25 V dc may be present on nearby conductors.
•
Always turn on the MediaChecker before connecting it to a cable. Turning the MediaChecker on activates
the tool’s input protection circuitry.
•
Do not open the MediaChecker's case (except to replace the batteries). No user-serviceable parts are
inside.
•
To avoid false test results, replace the batteries as soon as “LOW BATTERY” appears in the display.
•
Use only batteries recommended by the manufacturer.
•
Do not use the MediaChecker if it is damaged. Protection may be impaired. Inspect the MediaChecker for
physical damage before each use.
•
Do not attempt to insert any connector other than an RJ45 connector into the RJ45 jack. Inserting other
connectors, such as RJ11 (telephone) connectors, can permanently damage the jack.
•
Do not operate portable transmitting devices during a cable test. Doing so might cause erroneous test
results.
•
To avoid false test results, do not run cable tests with cables attached to more than one connector on the
MediaChecker or with network equipment attached to the cable under test.
Summary of Contents for MediaChecker 1788-MCHKR
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