Nortel Networks NTRN10AN, 3500 manual Channelized DS3 service DS3VTx12 mapper

2-44Operation, administration, and maintenance (OAM) features

Changing the BLSR configuration / connection audit period

A user can edit the BLSR configuration / connection audit period. The range is between 15 minutes to 10080 minutes (7 days). The default is 1440 minutes (1 day).

Channelized DS3 service (DS3VTx12 mapper)

The DS3VTx12 circuit pack accommodates 12 channelized DS3 signals, demultiplexing each of them into 28 DS1s which are in turn mapped into VT1.5s. As a result, each DS3VTx12 circuit pack gives full visibility and access to 336 VT1.5/s.

In keeping with the commitment of OPTera Metro 3500 supporting full digital cross-connect capabilities (DCS), users are able to cross-connect all and any VT1.5s from the DS3VTx12 circuit pack to VT1.5 paths of any other kind supported by this network element, such as OC-48, OC-12, OC-3, EC-1, DS1, DSM, and other DS3VTx12s.

AINS, loopback, and manual facility provisioning are supported at both the DS3 and DS1 facility levels. Full bandwidth management and In-Service Traffic Rollover (ISTR) capabilities are supported at the STS-1 (DS3) level down to the VT1.5 (DS1) level for the DS3VTx12 circuit pack.

The DS3VTx12 circuit pack supports some but not all performance monitoring parameters that are supported on other DS3 and DS1 circuit packs. Table 2-23 on page 2-108and Table 2-24 on page 2-109illustrate the supported parameters on the DS3VTx12 circuit pack for DS3 and DS1 PMs.

Note 1: The DS3VTx12 mapper supports M13 and ASYNC mapping only.

Note 2: VT management is supported with VTX-series circuit packs in slots 13 & 14 only.

Note 3: The DS3VTx12 mapper is not supported on OPTera metro shelves equipped with STX-192 circuit packs.

For more information about the DS3VTx12 mapper, see DS3VTx12 mapper on page 3-90.

Common Language Location Identifier

OPTera Metro 3500 supports an 11 character alphanumeric Common Language Location Identifier (CLLI), that assigns a unique identification code to each location and to each coded telephone plant item. The CLLI number is user-provisionable and the code structure is: CCCCSSBBUUU

•CCCC is the geographical or place code

•SS is the geographical or state/country code

•BB is the network site code

OPTera Metro 3500 Multiservice Platform NTRN10AN Rel 12.1 Standard Iss 1 Apr 2004