Chapter 3. Operation
3-12 Dual Nx56/64 Option Module User Manual 61200142L1-1
Port Test
This menu item is used to activate testing of specific data
ports. It also controls the activation of loopbacks and the
initiation of data test patterns. Test results are shown on
the TSU/TDU/ESU display.
Operation
To display Figure 3-8 on the TSU 100, place the cursor on
3)PORT TEST, and press Enter or the number 3 key. This
displays the available ports.
Figure 3-8. Port Test Submenu
1.1 Dual Nx56/64
The Nx interface offers the following test functions:
LOOPBK
Initiates a loopback.
PRT/LCI
The Nx port activates both a local loopback (Back toward
the DTE) and a port loopback when either is invoked
Port Test execution disrupts normal data flow in the port being tested.
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