Rockwell Automation 1788 NetLinx Media Checker Users Manual - Manual (Page 7)

Getting Acquainted 7
1788-UM002A-US-P – April 2000
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A continuous, varying-pitch tone indicates the
MediaChecker is connected to an active cable and
should be disconnected immediately. “ACTIVE
CABLE” is displayed.
To disable the audible signal for the “PASS” and “FAIL”
conditions, see “Setup Selections” on page 35. The tone
that indicates an active cable cannot be disabled.
Low Battery Indication
When the battery voltage is low but it is OK to continue,
the MediaChecker displays “LOW BATTERY” once during
power-up. When this message first appears there are
about 8 hours of use left. When the battery voltage is too
low to continue, the unit displays “REPLACE BATTERY”.
To continue using the MediaChecker, you must replace
the batteries. Refer to “Replacing Batteries” on page 36.
Battery Save Mode
The MediaChecker turns itself off when there is no switch
or key activity for 10 minutes. To return the
MediaChecker to operation, you must turn the rotary
switch to OFF and wait 5 seconds before turning the
MediaChecker back on.
To disable the Battery Save feature, turn the rotary switch
to OFF, then press and hold
E while turning the rotary
switch to TEST. To re-enable the Battery Save feature,
turn the MediaChecker off, then on again.
Cable ID Unit
The Cable ID lets you detect wiring failures on twisted
pair cable. Test results can vary depending on whether
the ID unit is connected or not. See Table 7 on page 14
and “Twisted Pair Cable Test Results” on page 15 for
more information.
Selecting the Display Language
The MediaChecker displays messages in English,
French, German, Spanish, and Japanese. To change the
display language, do the following:
1. With the MediaChecker off, press and hold
A
while turning the rotary switch to TEST.
2. Press C or D until the desired language is
displayed, then press
A
.