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Chapter 4
Configuring the 6T3 Line Card
adtran for connection from a 6T3 line card to an Adtran DSU. Specify digital-link for connection to a
Digital Link DSU (DL3100). Specify kentrox for connection from a 6T3 line card to a Kentrox DSU.
Specify larscom for connection from a 6T3 line card to a Larscom DSU.
Also see the
regarding DSU feature compatibilities.
Enabling T3 Scrambling
In interface configuration mode, enable T3 scrambling by entering the scramble configuration
subcommand, as in the following example:
Router(config-if)# scramble
Use the no form of this command to restore the default value, disabled.
The local port configuration must match the remote port configuration. For example, if you enable
Note
scrambling on the local port, you must do the same on the remote port.
Also see the
regarding DSU feature compatibilities.
Specifying T3 Framing
In interface configuration mode, specify T3 framing by entering the framing {c-bit | m23}
configuration subcommand, as in the following example:
Router(config-if)# framing c-bit
Use the no form of this command to return to the default, C-bit framing.
Setting the Cable Length
In interface configuration mode, set the cable length (0 to 450 feet), as in the following example:
Router(config-if)# cablelength 250
Use the no form of this command to return to the default, which is 50 feet.
Checking the Configuration
After configuring the new interface, use the show commands to display the status of the new interface
or all interfaces, and use the ping and loopback commands to check connectivity. This section includes
the following subsections:
•
•
•
•
•
OL-3449-02
"Interoperability Guidelines for 6T3 Line Card DSUs" section on page 1-3
"Interoperability Guidelines for 6T3 Line Card DSUs" section on page 1-3
Using show Commands to Verify the New Interface Status, page 4-10
DS3 Alarm and Event Detection, page 4-14
Using the ping Command to Verify Network Connectivity, page 4-15
Using loopback Commands, page 4-15
Bit Error Rate Testing, page 4-17
Clear Channel 6-Port T3 (DS3) Line Card Installation and Configuration
Checking the Configuration
for information
for information
4-9
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