EXFO FTB-800 Series for FTB-1 - Manual (Page 356)

Test Results
346 FTB-700G/800 Series
Summary (Cable Test)
When the link is down:
If the determined Wire Map is either MDI, MDIX, MDI (-), MDIX (-), or
Noise (Link up), the test is declared as PASS. If the determined Wire
Map is either Short, Short-between-pair, Open, Noise (Link down), or
Unknown, the test is declared as FAIL.
Note: Refer to Ethernet Cables on page 543 for cable pinout.

Distance To Fault (m/ft) gives the distance to fault from the near end
for each pair, unless the problem is due to excessive noise. Noise may
be due to electrical noise causing communication error.

Prop. Delay (ns) indicates the propagation delay of a signal through
each pair.

Length (m/ft) indicates the cable length of each pair.
Short Short-circuit between Tip and Ring wires of a pair or
Tip or ring wire of a pair is connected with an alien
wire grounded.
Open No cable plugged in, remote end open, or either one
or two wires of a pair are not connected.
Short-between
-pairs
Short between one or two wires of a pair with one or
two wires of another pair. Short between more than
two pairs, including one or two wires for each pair.
Noise Excessive noise on a pair most likely caused by a link
partner running in 10/100 Mbit/s forced mode. In this
case, no distance is reported and there is no
comparison with any threshold.
Unknown No fault has been identified but the link is down. To
maximize the cable test result, it is preferable to have
the far end equipment powered up.