ADTRAN T1 ESF CSU ACE user manual Enable Disable

Chapter 3. Operation T1 ESF CSU ACE User Manual

6)BIT STUFFING

When enabled, bit stuffing causes the T1 ESF CSU ACE to monitor for ones (1s) density violations and inserts a one (1) when needed to maintain ones at 12.5 percent. This option should be disabled if B8ZS is enabled. The factory default is DISABLED.

ENABLED

DISABLED

7)SET LBO

Selects the line build out for the network interface. The factory default is 0 dB.

0 dB

-7.5 dB

-15 dB

-22.5 dB

When interfacing to a Smart jack, the 0 dB setting typically works best because most Smart jacks expect a strong receive level.

8)NET LB

When enabled, the T1 ESF CSU ACE responds to loopback codes from the network interface. The factory default is ENABLED.

ENABLED

DISABLED

9) ROB BIT SIG

Enables and disables robbed-bit signaling. This option should be enabled in applications when the terminal interface (TI) is connected to equipment for voice or dialed data services (PBX/SW56). When enabled, robbed bit signaling will occur in the user specified DS0s. The DS0s must be contiguous, and are defined by a starting and ending DS0. The factory default is Disabled.

ENABLE

DISABLE

10) RBS START

When robbed-bit signaling is enabled, enter the first DS0 in which robbed-bit signaling will occur (1-24). The factory default is 1.

11) RBS END

When robbed-bit signaling is enabled, enter the last DS0 in which robbed-bit signaling will occur (1- 24). The factory default is 24.

44 © 2004 ADTRAN, Inc 61204025L1-1B