Avaya Configuring WAN Lines Services Manual de usuario Pagina 129

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Configuring E1 and T1 Services
308648-14.00 Rev 00
6-7
By default, the T1 line buildout for DSX-1 is based on a physical line length of
1 ft. Configure a line length based on the approximate length of the cable
connecting the router and the associated T1 equipment, from 1 to 655 ft.
See the Line Buildout parameter on page A-89 for information.
Setting the Internal Clock Mode
The T1 equipment associated with a T1 interface must use a compatible transmit
clock. The T1 interface supports three sources for the transmit clock:
Internal -- Indicates that the router sets the clock
Slave -- Indicates that the incoming data stream sets the clock
Manual -- Indicates that jumpers on the T1 link or net module set the clock
By default, the T1 interface uses manual clock mode, which is determined by
hardware configuration jumpers. See Installing and Maintaining BN Routers or
Installing and Maintaining ASN Routers and BNX Platforms for information
about configuring the T1 module’s hardware jumpers.
See the Clock Mode parameter on page A-89 for information.
Assigning Channel Functions
Each T1 channel on an interface is idle by default. You can assign the following
functions:
Data -- Assigns the channel to data pass-through (T1 connector to
T1 connector)
Voice -- Assigns the channel to voice pass-through (T1 connector to
T1 connector)
Circuit 1 -- Assigns the channel to the first T1 connector
Circuit 2 -- Assigns the channel to the second T1 connector
Idle -- Makes the channel idle
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