Table of Contents
Overview: PA-A2 ATM CES Port Adapter
This chapter describes the PA-A2 ATM CES port adapter and contains the following sections:
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Circuit Emulation Services Overview
Voice and video services—circuit emulation services (CES)—allow you to interconnect existing T1/E1
interfaces and other types of constant bit rate (CBR) equipment. CBR services include such features as
PBX interconnect, consolidated voice and data traffic, and video conferencing.
With circuit emulation, data received from an external device at the edge of an ATM network is converted
to ATM cells, sent through the network, reassembled into a bit stream, and passed out of the ATM
network to its destination. T1/E1 circuit emulation does not interpret the contents of the data stream. All
the bits flowing into the input edge port of the ATM network are reproduced at one corresponding output
edge port.
An emulated circuit is carried across the ATM network on a PVC, which is configured through the
network management system.
The ATM CES port adapter offers two types of services, that are covered in the following sections:
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OL-3460-01
Circuit Emulation Services Overview, page 1-1
PA-A2 ATM CES Port Adapter Overview, page 1-15
LEDs, page 1-17
PA-A2 ATM CES Cables, Connectors, and Pinouts, page 1-18
ATM Management Information Base Specifications, page 1-20
Fibre-Optic Transmission Specifications, page 1-20
Setting ATM CES Port Adapter Jumpers, page 1-23
PA-A2 ATM CES Port Adapter Slot Locations on the Supported Platforms, page 1-24
Identifying Interface Addresses, page 1-27
Circuit Emulation Services Internetworking Function, page 1-2
Network Timing Services for CES Operations, page 1-8
C H A P T E R
PA-A2 ATM CES Port Adapter Installation and Configuration
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