Quick Configuration Guide for A7000 1xT1 or 1xT1 + DSX-1 Modules 2005-04

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The following steps specifies the clock source for the T1 network interface(s).
1. At the (config)# prompt, enter interface t1 1/1 to activate the interface configuration mode
for the T1 network interface.
2. Enter clock source line
to configure the router to recover clocking from the T1 network
connection.
The following steps demonstrate configuring a T1 network interface with timeslots 1 through 10
reserved for data.
1. At the (config-t1 1/1)# prompt, enter tdm-group 1
timeslots 1-10 to create a TDM group for
DS0s 1 through 10 (the data DS0s) on the T1 network connection (t1 1/1).
2. Enter no shutdown to activate the T1 interface.
3. Enter exit to return to the Global Configuration mode.
1. Enter interface t1 1/2 to activate the interface configuration mode for the DSX-1 interface.
2. Enter signaling mode robbed-bit to verify the DSX-1 interface is configured for voice
(robbed-bit) signaling.
3. Enter no shutdown to activate the DSX-1 interface.
4. Enter exit to return to the Global Configuration mode.
Configure the T1 Network Interface
Note
The 1xT1 + DSX-1 Module supports a single clock source for both interfaces.
Note
If two routers are configured on a private T1 using PPP (as in the PPP over
fractional T1 diagram), one router must be configured for clock source internal to
provide timing on the circuit and the other to clock source line. Configuring the
routers as such provides a single master clock on the point-to-point circuit and
avoids timing issues. This only applies to circuits that do not contain timing
sources from the provider. Frame relay circuits inherently have a provided clock
source, so all routers connected to the public frame relay network should be set to
clock source line to recover clocking from the network source and avoid timing
issues.
Create the T1 Interface TDM Group
Note
The ProCurve Secure Router automatically map DS0s 1 through 24 from the
network connection of a T1/FT1 + DSX-1 interface module to the DSX-1 port.
Creating a TDM group removes the specified DS0s from the DSX-1 map. All
remaining DS0s not included in the TDM group will be passed from the network
port (t1 1/1) to the DSX-1 port (t1 1/2).
Configure the DSX-1 Interface (Optional)
Note
The default t1 1/2 signaling is robbed bit and does not need to be set. To use PRI,
set signaling mode to none.