Datasheet

Table Of Contents
CHAPTER
6-1
Cisco ONS 15454 SDH Reference Manual, R7.0
October 2008
6
Storage Access Networking Cards
The Fibre Channel Multirate 4-Port (FC_MR-4) card is a 1.0625- or 2.125-Gbps Fibre Channel/fiber
connectivity (FICON) card that integrates non-SDH framed protocols into an SDH time-division
multiplexing (TDM) platform through virtually concatenated (VCAT) payloads. This chapter provides
information about the FC_MR-4 card. For installation and step-by-step circuit configuration procedures,
refer to the Cisco ONS 15454 SDH Procedure Guide.
Chapter topics include:
6.1 FC_MR-4 Card Overview, page 6-1
6.2 FC_MR-4 Card Modes, page 6-3
6.3 FC_MR-4 Card Application, page 6-6
6.4 FC_MR-4 Card GBICs, page 6-7
6.1 FC_MR-4 Card Overview
Note For specifications, see the A.8.1 FC_MR-4 Card Specifications” section on page A-48.
The FC_MR-4 card uses pluggable Gigabit Interface Converters (GBICs) to transport
non-SONET/SDH-framed, block-coded protocols over SONET/SDH. The FC_MR-4 enables four client
Fibre Channel (FC) ports to be transported over SONET/SDH, encapsulating the frames using the ITU-T
generic framing procedure (GFP) format and mapping them into either T1X1 G.707-based VCAT
payloads or standard contiguously concatenated SONET/SDH payloads. The FC_MR-4 card has the
following features:
Four FICON ports operating at 1 Gbps or 2 Gbps
All four ports can be operational at any time due to subrate support
Advanced distance extension capability (buffer-to-buffer [B2B] credit spoofing)
Pluggable GBIC optics
Dual rate (1G/2G): MM (550 m) and SM (10 km)
Single rate (1G): SX (550 m) and LX (10 km)
SONET/SDH support
Four 1.0625-Gbps FC channels can be mapped into one of the following: