Test-Um VALIDATOR-NT NT955 - Manual (Page 57)

56
Test-Um NT955 Series
Test Results
Untitled1.job Test-Um Inc.
validator
A
B
C
D
BERT Results:
188ft
186ft
--
--
--
--
Length
Max: 300ft
Skew
Max: 35ns
SNR
Min:20db
BACKSPC PG UP PG DOWN
--
--
30.0
30.0
Short
100%
2005 Aug 25
10:53:01
184ft
7 ft
Figure 4.4 Page Down to Display Distance To Short
Miswire - A wire or both wires of a pair are not connected to correct
pins at the other end of the cable. For example, a reverse pair displays
the wires connected to the correct pair of pins, but the two leads are
reversed. (See Figure 4.5)
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 4.5 Test Results-Miswire
Split Pair - The cable has an error in the twisting of the wires together
within the cable. Cables are generally made up of 8 wires twisted
together in 4 pairs. A cable can be wired with correct continuity, but
not with correct pairing. If the only error is a split pair error, the cable
has correct continuity. If the Validator main unit is unable to link to its
remote due to another error, such as a short, A Link Test Error Message
displays “Unable to Measure SNR.” Press OK to view the wiremap
results. (See Figure 4.6)
Validator TM How AutoTest Works