User's Manual

E1 Spread Spectrum Radios
8-28
Figure 8-38: RF Loopback Setting
8.7.4 Remote Loopback
Under Remote Loopback, a self-detection test on the complete loopback from local to remote is carried out. This
function setting is done through the NMS or the LCD display button.
Figure 8-39: Remote Loopback
In the System Test window, tick the Setting column for Tributary 1. Press Accept Setting. The IDU’s first E1
interface is now performing the Remote Loopback test. There can be multiple selections for the test. Press Clear
All Test to stop all tests.