Test-Um VALIDATOR-NT NT955 User Manual

Test-Um NT955 Series

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

Expected

Results

1 1

2 2

3 3

6 6
4 4

5 5
7 7

8 8

Cable001

Fail

1 1

2 2

3 3

6 6
4 4

5 5
7 7

8 8

Test Time: 10:53 Thu 2005 Aug 25

BACKSPC

PG UP

PG DOWN

Test-Um Inc.

validator

100%

2005 Aug 25

10:53:01

CAT5E

1 Gbit/s



Remote ID: 1

Figure 4.3 Test Results Short on Pair 4 and 5

Validator

How AutoTest Works

Validator

How AutoTest Works