Accessing The T1 Interface For The Dsx-1 Port; Configuring Line Coding - HP ProCurve Secure 7000dl Series Basic Management And Configuration Manual

Configuring the E1 + G.703 and T1 + DSX-1 Modules
Configuring the T1 + DSX-1 Module
9-16
You may want the T1 + DSX-1 module to take its timing from the PBX rather
than from the public carrier's equipment. To change the clock source for the
T1 interface to through, enter:
ProCurve(config-t1 1/1)# clock source through
For detailed information about configuring T1 interfaces, see Chapter 4:
Configuring E1 and T1 Interfaces.

Accessing the T1 Interface for the DSX-1 Port

The ProCurve Secure Router treats the DSX-1 port as a T1 interface. Because
it is the second port of the T1 + DSX-1 module, you access the DSX-1 interface
by entering the following command from the global configuration mode
context:
Syntax: interface t1 <slot>/2
For example, if the T1 + DSX-1 module is in slot 1, enter:
ProCurve(config)# interface t1 1/2
You will need to configure the DSX-1 interface to match the settings used by
the PBX to which it connects. Both ends of the connection must use the same
methods of coding data and dividing it into frames.
As with any T1 interface, you will also need to set the transmit signal level.
This setting depends on the distance between the interface and the equipment
to which it connects. Properly configuring the signal level compensates for
attenuation across distant connections and keeps the signal from becoming
"too hot" across short cables.
Finally, you will need to set the signaling mode to determine how the ProCurve
Secure Router carries signaling information for the DS0 channels.

Configuring Line Coding

You must configure the DSX-1 interface to use the same line coding that your
PBX uses:
Alternate Mark Inversion (AMI)
Bipolar 8-Zero Substitution (B8ZS)