Nortel Networks NTRN10AN EC-1x3 circuit pack NTN436AA, Unidirectional path switched rings UPSRs

Models: 3500 NTRN10AN

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3-82Hardware feature descriptions

Note: 1+1 line protection can be used only between OC-3 ports which have the same port number and which are located on OC-3x4 optical interface circuit packs installed in adjacent slots. OC-3 ports in the odd slot act as the working line, and OC-3 ports in the even slot act as the protection line.

Unidirectional path switched rings (UPSRs)

UPSRs operating at an OC-3 line rate - and employing OC-3x4 circuit packs - require two OC-3x4 circuit packs in each shelf.

Section data communication channel (SDCC)

An OC-3 line carries a DCC channel that can be edited, provisioned, and deprovisioned. Each OC-3x4 circuit pack carries four SDCC channels (one for each OC-3 port).

Note 1: The maximum number of simultaneous SDCC-provisionable ports on an OPTera Metro 3500 shelf is 34 (the shelf must be equipped with eight unprotected OC-3x4 or OC-12x4 STS circuit packs in slots 3 through 10, and a protected pair of OC-48 or OC-192 circuit packs in slots 11 and 12).

Note 2: For Nortel Networks interworking and multi-vendor network scenarios, DCC interoperability can be achieved with the appropriate provisioning. See Optical Networks Data Communications Network Planning Guide, NTR710AM.

Alarm LED definitions

The following table provides a list of LEDs of the OC-3x4 optical interface.

LED

Color

Description

 

 

 

Status

Red

Circuit pack failure

 

 

 

Active

Green

In service and carrying traffic

 

 

 

LOS(1-4)

Yellow

Loss of signal on the port

 

 

 

EC-1x3 circuit pack (NTN436AA)

Release 12 supports a version of the EC-1x3 mapper specifically for the OPTera Metro 3500 shelf.

The EC-1x3 circuit pack receives and transmits three EC-1 signals from external equipment and provides accessibility to VT1.5s or STS-1s within the network element. This circuit pack is fully bidirectional. The facility signal attributes for an EC-1x3 circuit pack facility are provisionable.

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

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Nortel Networks NTRN10AN, 3500 manual EC-1x3 circuit pack NTN436AA, Unidirectional path switched rings UPSRs