Chapter 3. Operation
61200.129L1-1
TSU 120 User Manual
89
Port Tests
The Port Tests menu is used to activate testing of
specific data ports. It controls the activation of
loopbacks and the initiation of data test patterns. Test
results are displayed in the LCD window.
The execution of Port Tests will disrupt normal data flow in
the port being tested.
Operation
Follow standard operating procedures to access the
4)TEST menu item.
With the cursor on 3)PORT TESTS, press Enter or
number 3. The unit displays the available ports.
Port Test Menu Items for 0.1 Nx56/64
0.1 Nx56/64 is the base Nx interface. It offers the
following test functions:
LOOPBK
This initiates a loopback. The following options are
available:
PRT/LCL
The Nx port activates both a Local
loopback (back toward the DTE) and
a Port loopback when either is
invoked.
REMOTE
The remote loopback causes a V.54
code to be sent to the far end. The
Nx at the far end activates a
PRT/LCL loopback upon detection
of
the V.54 code.
OFF
The loop is deactivated.
The TSU 120 checks the remote loopback activation by
detecting a proper response from the remote end. While
waiting for the response, the display shows Looping. If
successful, the display changes to Looped Up. If unsuc-
cessful, the display shows Failed.
Summary of Contents for TSU 120
Page 1: ...TSU 120 PART NUMBER 1200129L1 USER MANUAL 61200 129L1 1A July 1997...
Page 52: ...Chapter 2 Installation 38 TSU 120 User Manual 61200 129L1 1...
Page 132: ...Appendix C System Configuration Charts 118 TSU 120 User Manual 61200 129L1 1...
Page 138: ...Appendix D TSU 120 System Messages 124 TSU 120 User Manual 61200 129L1 1...