Rockwell Automation 1788 NetLinx Media Checker Users Manual - Manual (Page 8)

8 Preparing the MediaChecker for Use
1788-UM002A-US-P – April 2000
Preparing the MediaChecker for Use
ATTENTION: To reduce wear on the
MediaChecker connector, leave the adapter
connected to the MediaChecker whenever
possible.
Plugging a 4 or 6 position plug into the
MediaChecker’s UTP/FTP jack can
permanently damage the jack pins.
Important: The noise filter should be set to the
frequency of the local power mains (50 Hz or
60 Hz). See “Setup Selections” on page 35
for this and other customizing selections.
After connecting the cable under test to the appropriate
connector on top of the MediaChecker, you must select
proper cable type, category, and size before testing or
measuring. It may also be necessary to calibrate the
MediaChecker to the cable under test. See “Calibrating
the MediaChecker to a Cable” on page 10.
Important: Never run cable tests with more than one
cable connected to the MediaChecker.
Doing so can cause erroneous results.
If you think the MediaChecker is not performing properly,
refer to “When Something Goes Wrong” on page 36.
Selecting a Cable Type
Characteristics for a variety of Rockwell Automation’s
industrial commercial network cables are stored in the
MediaChecker and can be accessed through SETUP.
See Table 5.
Table 5. Predefined Cable List
ControlNet
(CNET)
DeviceNet
(DNET) DH+/RIO
Ethernet
(ENET)
RG6
RG6F
DS3/4
Thick
Thin
KwikLink
1770-CD
9022
9463
UTP
FTP