Network Cables User Manual

24
BRTS-100 ISDN TEST SET
Figure 4-6. Check loop flow chart (3 of 3).
CHECK FOR SHORT
IN TRANSMIT PAIR
NT1 NOT
TERMINATED
OR SHORT ON
TX PAIR
B
TEST STATUS?
RED
PUT BACK IN
NORMAL MODE,
PUT IN IMPEDANCE
TEST MODE
LINE IMPEDANCE
PROBLEM
WITH NT1
GRN