Router 1-Port E3 Atm Fic; Introduction; Interface Attributes - 3Com 3C13701 Module Manual

3Com Router 5000 and Router 6000 v2.41
Module Guide

4.11 8.8 Router 1-Port E3 ATM FIC

4.11.1 Introduction

8.8 Router 1-Port E3 ATM FIC, the 1-port 34Mbps ATM-E3 interface card, provides
these functions:
Two ATM cell mapping modes: ATM direct mapping (ADM) and physical layer
convergence protocol (PLCP).
Scrambling in data transmission.
Line clock (when working as DTE interface) and internal clock (when working as
DCE interface).
Four types of test measures: local cell loopback, local loopback, remote payload
loopback, and remote line loopback.
Note:
You may equip your router with 8.8 Router 1-Port E3 ATM FIC cards to its full capacity. Yet, you are
recommended to install only one 8.8 Router 1-Port E3 ATM FIC on it, whatever its model is, to ensure
performance of some key services.

4.11.2 Interface Attributes

The following table describes the interface attributes of the 8.8 Router 1-Port E3 ATM
FIC.
Table 4-23 Interface attributes of the 8.8 Router 1-Port E3 ATM FIC
Connector
Number of connectors
Interface standard
Interface rate
Interface cable
Supported services
Attribute
SMB
2
G.703, G.751, G.832, G.823
34.368 Mbps
E3/T3 cable (75-ohm coaxial cables)
ATM traffic CBR (constant bit rate), rt_VBR (variable bit rate-real
time), nrt_VBR (variable bit rate-non real time), UBR (unspecified
bit rate)
Chapter 4 Flexible Interface Cards (Router 6000)
8.8 Router 1-Port E3 ATM FIC
4-35