2
Set the Reference for Coaxial Tests
The reference procedure for coaxial tests sets the baseline for insertion loss and
resistance measurements. Set the reference at these times:
When you want to use the tester with a different module. The tester can save
reference values for eight different pairs of modules.
Every 30 days, at minimum. To ensure maximum accuracy of test results, set the
reference daily.
It is not necessary to set the reference again if you use different coaxial adapters.
To set the reference
1
Make the connections shown in Figure 1.
2
Turn on the tester and the remote a minimum of 1 minute before you set
the reference.
Notes
Set the reference only after the testers are at an ambient
temperature between 10 °C and 40 °C (50 °F and 104 °F).
The tester will not let you set the reference if the patch cord is longer
than 30 cm (12 in).
You can also set the reference with a 50
patch cord
3
On the home screen, select a copper cable test.
4
On the home screen, tap
TOOLS
, then tap
Set Reference
.
5
On the
SET REFERENCE
screen tap
TEST
.
GPU179.EPS
Figure 1. Connections for the Reference Procedure
DSX-CHA003
COAX ADAPTER
DSX-CHA003
COAX ADAPTER
Coaxial adapter
with F-connector
adapter
12 inch (30 cm) 75
coaxial patch cord
Coaxial adapter
with F-connector
adapter
