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Chapter 3. Operation
Port Test
Port Test execution disrupts normal data flow in the port being tested.
Operation
1.1 Dual Nx56/64
3-12
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.
To display Figure 3-8 on the TSU 100, place the cursor on
3)PORT TEST, and press
displays the available ports.
3
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
Dual Nx56/64 Option Module User Manual
or the number
Enter
Figure 3-8. Port Test Submenu
key. This
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