CHAPTER 4: Test Procedures
A
RED
SWITCH TO
REVERSE, DO
CONTINUITY TEST
LINE
CONTINUITY
TEST STATUS?
GRN
PUT BACK IN
NORMAL MODE,
PUT IN LEVEL
TEST MODE
LEVEL
TEST STATUS?
GRN
NT1 OR
SWITCH NOT
WORKING
GRN
TEST STATUS?
PROBLEM WITH
TX PAIR
| CONTINUITY |
|
|
|
OPEN IN |
| GRN | ||
| ||||
| ||||
RX PAIR |
| |||
TEST STATUS? |
|
| B | |
|
|
| ||
|
| RED | ||
|
| |||
| OPEN IN |
|
|
|
| TX PAIR |
|
|
|
RED | SIGNAL |
| LEVEL TOO |
| LOW |
Figure 4-6. Check loop flow chart (2 of 3).
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