Carrier Access 1750 user manual 7Structured DS3 SAM Operational Configuration, Options Description

		Configuration
		Structured DS3 SAM
Table 7-7:Structured DS3 SAM Operational 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 with
	M13	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. Local Line Loopback sets a
	Local	loopback to the service equipment.Remote Loopback sets a
	Remote	loopback to the ATM network.
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.

Broadmore 1750 - Release 4.6 7-51