Wiremap; Length/Delay - Fluke OMNIScanner 2 User Manual

Twisted Pair Measurements with OMNIS

Wiremap

The Wiremap function tests twisted-pair cabling for proper wiring.
Your cabling configuration is checked for shield continuity, opens,
shorts, crossed pairs, split pairs, and reversed pairs. For each pair,
Wiremap displays the length.
The screen displays a graphical representation of the wiring in your
cable, where the
the far end wiring on the right side of the screen.
• A reverse video number
• A straight line between pairs indicates a good
pair
• No line between wire pairs indicates an open
• An X between a wire pair indicates a reversed
pair
• A ] between wirepairs indicates a short
• The measured length of the pairs 1-2, 3-6, 4-5, and 7-8 are shown on
the left side.
In the example, OMNIS
(although they are wired straight through), a reversed pair 3 - 6, an
open on wire 7, and a short on wire 8 to the Shield.
Press ESC to exit the WIREMAP screen.

Length/Delay

The Length/Delay function measures a cable's length, propagation
delay and skew. OMNIS
or shorted.
The accuracy of the NVP (Nominal Velocity of Propagation) setting
determines the exactness of the Length measurements. The NVP speci-
fied by cable manufacturers is used for all the cables in OMNIS
near end wiring is shown on the left side, and
1 indicates a split pair
displays split pairs on 1 - 2 and 4 - 5
CANNER
will determine whether the cable is open
CANNER
OMNIS User Guide
CANNER
CANNER
CANNER
's
5 - 5