Verilink Access Manager 2000 (896-502037-001) Product Manual - Manual (Page 321)

Activating/Deactivating DIU loopbacks
Access Manager 2000 User Manual 8-51
• Press the key to enter the DIU slot and shelf number.
3. One of the following Select xxx Loopback Activity screens will
appear:
• For the DIU 2130 :
• For the DIU 2140 :
• For the DIU 1130 :
Select the DIU loopback operation you want.
The DIU 2130, DIU 1130, and DIU 2140 of an Access System 2000
node are each equipped with two simultaneous loopbacks for data
port (i.e., data channel) end-to-end testing.
F5
Select DIU 1130 Loopback Activity