Carrier Access Broadmore 1750 - Manual (Page 166)

7-52 Broadmore 1750 - Release 4.6
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
Off-line
This is a status field that can be toggled to offline, in which
case the port will not be available to make calls and passive
SVCs are refused.
Framing C-bit
M13 C-bit is a framing mode using DS2 stuff bits associated
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
BITS-Clock
Loop (Synchronous) Network-This method of clock recovery
derives timing from the ATM Network and propagates it to
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
Remote Normal Mode is no loopback.
Remote Loopback sets a loopback to the service side.
Service RAI Auto
X-bits 1
X-bits 0 Indication (RAI) configuration. Allows user configuration
of the X-bits associated with C-bit parity framing. Auto
makes it transparent; the other choices set the X-bits to
either 1 or 0.