Specifying The Cable Length - Cisco 10000 Series Configuration Manual

Unchannelized T3 Commands

Specifying the Cable Length

To specify the cable length for the T3 controller, use the cablelength command.
[no] cablelength feet
Where feet is a number from 0 to 450.
The default value is 249 feet.
Use the no form of this command to restore the default cable length.
In the following example, the cable length value is set to 40 feet.
Router(config)# interface serial 1/0/0
Router(config-if)# cablelength 40
This command causes the system to use one of two settings for impedance matching and pulse shaping,
Note
one setting for any cable length between 0 and 249 feet and another setting for any cable length greater
than 250 feet. The exact value you enter is stored in the configuration file.
Entering MDL Messages
You can configure maintenance data link (MDL) messages (as defined in the ANSI T1.107a-1990
specification) on the unchannelized T3 interface.
Note MDL messages are supported only when the T3 framing is set for C-bit parity. (See the
Framing Type" section on page
To configure MDL messages, use the mdl command.
[no] mdl
port
Where:
•
•
•
•
•
•
•
•
•
The default is that no MDL message is configured.
Use the no form of the command to remove an MDL message.
Cisco 10000 Series Router Line Card Configuaration Guide
4-10
{ { |
transmit path idle-signal
| }
generator id_string
transmit path enables transmission of the MDL path message.
transmit idle-signal enables transmission of the MDL idle signal message.
eic is the equipment identification code (up to 10 characters).
lic is the location identification code (up to 11 characters).
fic is the frame identification code (up to 10 characters).
unit is the unit identification code (up to 6 characters).
pfi is the facility identification code to include in the MDL path message
(up to 38 characters).
port is the equipment port (which initiates the idle signal) to include in the MDL idle signal message
(up to 38 characters).
generator is the generator number to include in the MDL test signal message (up to 38 characters).
Chapter 4 4-Port Channelized T3 Half-Height Line Card Configuration
4-8.)
|
test-signal
}
} | { | |
string eic lic fic
"Setting the
| | |
unit pfi
OL-8834-04