Technical data

500 Chapter 18
T1 Analyzer
Making T1 Measurements
T1 Analyzer
5 Select a test mode.
a. [Get Started/ Test Mode]
b. [Loopback CSU/NIU]
c. [CSU Full T1 BERT]
Use this test mode to perform measurements
such as BERT on a T1 circuit by placing the far
end CSU or NIU into a loopback state. The T1
circuit is not available for service when using
this test mode. End-to-end loopback tests are
normally limited to the CSU since NIU loop
codes are normally suppressed at the central
office.
Select this to perform a BERT test on a full T1
Circuit.
6 [Setup] Select this to display a list of setup choices that
pertain to this test mode.
7 Setup Rx input.
a. [Rx Input]
b. [Terminate]
This assumes the test set is connected into a
jack that interrupts the T1 circuit.
8 Setup line code.
a. [Line Code]
b. [B8ZS]
This assumes the circuit is designed for B8ZS.
9 Setup framing.
a. [Framing]
b. [ESF]
This assumes that the circuit has been designed
for ESF.
10 Select a pattern.
a. [Pattern]
b. Use the up and down
buttons to select.
c. QRSS
d. [Select]
Step Notes