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SCAN-LAN Vt
D.6 Recalibration
1.
Calibrate Performance Module.
Follow the procedures in
Chapter 10
for Performance Module Calibration.
NOTE
In addition to calibrating, this step checks the NEXT to ensure that your
new cable assembly is similar in quality to factory specifications. If your
assembly fails this test, re-examine the twisted pairs as they enter the
screw terminals. Try twisting the wires tighter and make sure the twists
extend as close as possible to the screw terminals. Sometimes moving
the pairs is all that is required. Many CAT 5 patch cables have too much
NEXT due to the way they are terminated at the plug end. You may need
to try several before finding one that passes this test. Pre-tested cables
are available from Black Box.
2.
Calibrate Remote.
Follow the Remote Unit Calibration procedure, also
in
Chapter 10
.
3.
System Check.
Check your SCAN-LAN Vt performance by turning the
dial to EXTENDED FUNCTIONS. Run Self-Test. All results should
read PASS. Run Pair Reversal Test. Results should read PASS.
