Information
The Cisco 4OC12/ATM-IR-SC is a line card module designed for use in Cisco routers. It is specifically designed to provide high-speed ATM (Asynchronous Transfer Mode) connectivity over optical networks. The "4OC12" in the name refers to the fact that it supports up to four OC-12 (Optical Carrier level 12) connections, which have a data rate of 622.08 Mbps each. The "ATM-IR" indicates that it supports ATM with Inverse Multiplexing for ATM (IMA) technology, which allows multiple OC-12 connections to be combined to increase bandwidth. The "SC" refers to the type of optical connector used for the fiber optic connections. Overall, the Cisco 4OC12/ATM-IR-SC is a high-performance line card module for enabling high-speed ATM connectivity in Cisco routers.
Specifications
ATM Cell Rate
155.52 Mbps
ATM Cell Total
53 bytes
Connector Type
SC
Interface Type
OC-12/STM-4
ATM Cell Format
ATM Adaptation Layer 5 (AAL5)
ATM Cell Payload
48 bytes
ATM Traffic Type
Inverse Multiplexing for ATM (IMA)
Maximum Distance
40 km
ATM Cell Overhead
5 bytes
Physical Interface
Single-mode fiber optic
ATM Service Category
ATM Forum UNI 3.1/4.0
ATM Cell Header Scrambling
No
ATM Cell Header Compression
No
ATM Cell Payload Scrambling
No
ATM Cell Payload Compression
No
ATM Cell Header Decompression
No
ATM Cell Header Error Recovery
Yes
ATM Cell Payload Decompression
No
ATM Cell Header Error Detection
Yes
ATM Cell Payload Error Recovery
Yes
ATM Cell Header Error Correction
Yes
ATM Cell Payload Error Detection
Yes