Technical data

530 Chapter 18
T1 Analyzer
More Information About T1 Testing
T1 Analyzer
Figure 18-11 Flow Diagram of Out-of-band Loop-up Code Originating from the Test Set
Please note that 2
15
-1 (2047) pattern is used because it is normally used for
fractional T1 testing and has a low probability of being present on the full T1.
Timeout
No
Test Set Stops Sends Loop-Up Code on ESF
Test Set Waits for 900 ms
215 - 1 Pattern
Detected
D
i
s
p
l
a
y
"
O
p
e
r
a
t
i
o
n
C
o
m
p
l
e
t
e
"
D
i
s
p
l
a
y
"
T
i
m
e
o
u
t
"
Yes
Test Set Sends Loop-Up Code ESF Data
Link and 2
15
- 1 Pattern In-Band
Test Set Waits for 100 ms
Test Set Reverts to Sending
User Selected Pattern