Test-Um NT955 operating instructions Test Results Short on Pair 4

Test-Um NT955 Series ValidatorTM How AutoTest Works

A PASS or FAIL indication will be briefly displayed along with a speed rating up to 1 Gigabit depending on the cable type. The screen will show the Remote ID, wiremap of the individual pairs, and automatically scroll down to display Length, Skew, SNR and BERT test results. The lights on the remote unit flash sequentially to indicate a PASS condition. The job file is saved after every Auto Test.

Then the Cable Test Schedule displays the results and the test highlight automatically increments to the next cable in the list. The Voice over IP icon (VoIP) displays if the cable test results indicate a speed rating of 100MB or greater. You can go back to the previously tested cable by using the arrow navigation buttons and the Results soft key (F2) to inspect the specific test measurements, the speed test results, and the wire map conditions of each individual pair on the cable. Use the Arrow keys to scroll down this screen.

Interpreting Wiremap Errors: The following four classes of wiring errors cause cables to FAIL. Errors are reported in order of severity. The severity refers to the ability of a more severe error to mask lower severity errors. For example, if there is a short in the cable, miswires and split pairs may be detected for the pairs involved in the short fault.

Short - The pair has a low resistance connection between wire pairs or the shield. The wire pairs involved and the distance to the short in feet or meters displays in red on the wiremap screen.

(See Figure 4.3 & Figure 4.4)

Test Results Untitled1.job

	2005 Aug 25 Test-Um Inc.
100%	10:53:01	VALIDATOR

Cable001			Remote ID: 1		 Fail
Test Time: 10:53 Thu 2005 Aug 25					1 Gbit/s
	Expected			Results	CAT5E
1		1	1		1
2		2	2		2
3		3	3		3
6		6	6		6
4		4	4		4
5		5	5		5
7		7	7		7
8		8	8		8

BACKSPGUPC PG DOWN

Figure 4.3 Test Results Short on Pair 4 and 5

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