Configuring The E1 Interface For Data Communications; Assigning Channels To The E1 Interface - HP ProCurve 7000dl Series Basic Management And Configuration Manual

You connect the G.703 port to the PBX using crossover UTP cabling with
RJ-48C connectors.

Configuring the E1 Interface for Data Communications

The first step in configuring the E1 + G.703 module is to configure the E1
interface that will handle data. Two settings for the E1 interface directly affect
the G.703 interface:
channel assignment
clock source

Assigning Channels to the E1 Interface

When you configure the E1 interface, you assign the E1 interface a certain
number of channels that will be "nailed" to that interface. By default, any
channels that you do not assign to the E1 interface are passed to the G.703
interface.
An E1-carrier line includes a total of 32 channels: one channel is used to
maintain the connection, the other 31 channels can be used for data or voice.
When you divide these channels between the E1 interface and the DSX-1
interface, you must create two groups of contiguous channels. Typically, you
will reserve channel 16 and all subsequent channels for the G.703 interface.
You assign the channels to the E1 interface using the tdm-group command.
The remaining channels are automatically assigned to the G.703 interface.
To assign channels 1–15 to the E1 interface, move to the E1 interface config-
uration mode context and enter the tdm-group command:
Syntax: tdm-group <number> timeslots <range of numbers>
ProCurve(config-e1 1/1)# tdm-group 1 timeslots 1-15
If you view the status of the E1 interface (after you bind the physical interface
to the logical interface using the bind command), you will see that channels
1–15 are "nailed" to that interface, while channels 16–31 are assigned to the
G.703 interface. (See Figure 9-1.)
Enter show interface e1 <slot>/<port> at the enable mode context prompt:
ProCurve# show interface e1 1/1
Configuring the E1 + G.703 and T1 + DSX-1 Modules
Configuring the E1 + G.703 Module
9-5