Configuration

Structured DS3 SAM

Table 7-8:Structured DS3 SAM Diagnostics Configuration

Item

Options

Description

Port Name

 

A descriptive field to identify the port

 

 

 

Port Mode

On-line

This is a status field that can be toggled to offline, in which

 

Off-line

case the port will not be available to make calls and passive

 

 

SVCs are refused.

 

 

 

Framing

C-bit

C-bitis a framing mode using DS2 stuff bits associated

 

M13

with M13 multiplexing for other purposes such as Far End

 

 

Alarm Control (FEAC) Channel.

 

 

M13 is a mode that maps 28 DS1s directly into the DS3.

 

 

The DS1s do not exist independently as is the case when

 

 

M23 multiplexing is used.

 

 

 

Clock Mode

Network

(Synchronous) Network-This method of clock recovery

 

BITS-Clock

derives timing from the ATM Network and propagates it to

 

Loop

the CE Service Interface. The ATM network must be

 

 

synchronized to a single source clock. User equipment

 

 

should be configured to recover timing from the Broadmore

 

 

1750 CE service interface.

 

 

BITS-Clock(Building Integrated Timing Supply)-

 

 

distributes standard timing to equipment within the central

 

 

office. The Broadmore 1750 accepts BITS via either NIM

 

 

IOM. The fallback for the primary BITS clock is the other

 

 

BITS clock. The fallback for no BITS is the internal clock

 

 

of the NIM.

 

 

(Synchronous) Loop-The Broadmore 1750 CE interface

 

 

will derive clock from the attached SDS3 user equipment

 

 

and transmit from the CE interface at that rate. The user

 

 

equipment should be configured for Internal timing if the

 

 

Broadmore 1750 CE service interface is configured for

 

 

Synchronous loop.

 

 

 

Loopback

Normal

Normal Mode is no loopback.

 

Remote

Remote Loopback sets a loopback to the service side.

 

 

 

Service RAI

Auto

Indication (RAI) configuration. Allows user configuration

 

X-bits 1

of the X-bits associated with C-bit parity framing. Auto

 

X-bits 0

makes it transparent; the other choices set the X-bits to

 

 

either 1 or 0.

 

 

 

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Broadmore 1750 - Release 4.6

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Carrier Access 1750 user manual 8Structured DS3 SAM Diagnostics Configuration