Configuring The E1 Interface - HP ProCurve Secure 7000dl Series Basic Management And Configuration Manual

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Configuring the E1 + G.703 and T1 + DSX-1 Modules

Configuring the E1 + G.703 Module

Making the Physical Connection

Use unshielded twisted pair (UTP) cabling with RJ-48C connectors to

connect the E1 interface to the CSU provided by your Public Telephone

and Telegraph (PTT) authority.

Use crossover UTP cabling with RJ-48C connectors to connect the G.703

interface to the PBX.

Configuring the E1 Interface

When you configure a G.703 module, you first configure the E1 interface to

handle data communications. As part of this configuration, you assign the

number of channels that you will use for data to the E1 interface, and the

remaining channels are automatically assigned to the G.703 interface.

In addition, you can configure the clock source (rather than simply accepting

the default setting of line). For an E1 + G.703 module, the clock source is set

only on the E1 interface.

To assign the channels to the E1 interface, complete these steps:

From the global configuration mode context, enter the following

Syntax: interface e1 <slot>/1

Replace <slot> with the slot number in which the module is installed. For

example, if the module is in slot one, enter:

ProCurve(config)# interface e1 1/1

Use the following command to create a TDM group and assign it the

number of channels used for data.

Syntax: tdm-group <number> timeslots <range of numbers>

When you divide channels between the E1 interface and the G.703 inter-

face, you must create two groups of contiguous channels. Typically, you

will reserve channel 16 and all subsequent channels for the G.703 inter-

face. Enter:

ProCurve(config-e1 1/1)# tdm-group 1 timeslots 1-15

The remaining channels—in this case, channels 16-31—are automatically

assigned to the G.703 interface.

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