Specifications

Chapter 4 Troubleshooting and Diagnostics D8E1T1 Installation and Operation Manual
4-12 Expose (Link Status)
Table 4-7. User-Defined Loop Field Descriptions
Field Description
Activate Code - Length:
(option field)
Defines the length of the code needed to activate a remote loop. Select 4, 5, 6,
or 7 bits. The default is 5 bits.
Activate Code - Value:
(text field)
Used to enter the binary code needed to activate a remote loop. The default is
00001000.
Deactivate Code - Length:
(option field)
Defines the length of the code needed to deactivate a remote loop. Select 4, 5,
6, or 7 bits. The default is 6 bits.
Deactivate Code - Value:
(text field)
Used to enter the binary code needed to deactivate a remote loop. The default
is 00100100.
Unframed: (option field) Select Yes if the loopback command can over-write the framing bits, or No if it
cannot.
Backplane Loop
The Backplane Loop is designed to check the integrity of the Backplane and allow
testing through the D8E1T1 port from the remote side to the backplane and back
to the tester. The backplane loop is shown as part of Figure 4-7.
1. Move your cursor to the Backplane Loop field and press <Enter> or press T to
toggle the backplane loop On or Off.
2. Press X to enable the Backplane Loop. The Process Loop Command Prompt
appears.
3. Press Y to initiate the backplane loop, and you are returned to the Diagnostics
Manager Menu. Press N to exit and return to the Diagnostics Manager Menu.
There must be a connection to another module or to the D8E1T1 module itself
mapped on the backplane in order for the backplane loop to function.
4.6 Expose (Link Status)
The Expose function is used to display the status of the T1/E1 links, access G.826
statistics, reinitialize the framer, and insert errors for diagnostic purposes.
Note