Activate or deactivate the onboard csu, Dsu channel selection – Lucent Technologies Network Access Module User Manual

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INA Module Administration Options

C-2

INA Module Installation and Configuration Guide

The rest of the administration options are essentially the same as for the 100D module.
For more information on configuring the 100D module, see System Programming manual
(555-710-111).

Activate or Deactivate the Onboard CSU

The internal CSU on the INA module is activated by default. You can view and change
this setting by using the following sequence on your system programming console:

Menu: SysProg

Start

LinesTrunks

More

More

CSU/DSU

Slot#

Enter

ActivateCSU

Caution – The MERLIN MAGIX is forced into an idle state if the CSU settings are
changed during active voice calls. In this case, the change in CSU status occurs after all
active voice calls have been terminated.

Deactivating the CSU has the following impact on 100R module operation:

The 100R board does not respond to network initiated loopback requests.

The 100R board does not send T1 performance statistics to the network.

The line compensation value used by the 100R board corresponds to the DTE
settings appropriate for a 100D module instead of a CSU. The DTE and CSU values
are summarized in Table C-1

DSU Channel Selection

By default, no channels are assigned to the router. DSU channel selection is used to
assign channels to the router. Use the following sequence on your system programming
console to assign channels to the router:

Menu: SysProg

Start

LinesTrunks

More

More

CSU/DSU

Slot#

Enter

ChannelSel

Channel#

Enter

You must repeat this sequence for each channel to be assigned to the router.

Table C-1

100R Module Line Compensations with a Deactivated CSU

Line Compensation
Setting in MERLIN
MAGIX System
Programming

DTE Line Compensation
When CSU Is
DEACTIVATED

CSU Line Buildout
(LBO) When CSU Is
DEACTIVATED

1

0 to 133 feet

0.0db

2

133 to 266 feet

-7.5db

3

266 to 399 feet

-15db

4

399 to 533 feet

-22.5db

5

533 to 655 feet

-22.5db

!

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