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Chapter 1 Getting Started
Text Conventions
®
Table 1-1. PacketStar
PSAX Product Family
Target Market
Device Name
Carrier-Class
PSAX 2300
Office
Carrier-Class
PSAX 4500
Office
Text Conventions
Text Types Used in This Document
®
1-Port Channelized STS-1e, T1 Format Module User Guide, Issue 1
PacketStar
1-4
®
The PacketStar
rier-grade, high-density multiservice ATM access functions. Designed
as the multiservice media gateway for the central office or for a large
enterprise customer, the PacketStar
work access for time-division multiplex voice, frame relay, and ATM
data applications.
Supporting 15 slots for I/O and server modules, a 3.9 Gbps ATM cell
bus architecture, carrier-class reliability, full redundancy, provisions
for OC-12c/STM-4c interfaces, N x T1/E1 module protection switch-
ing, and a full range of interfaces such as DS1/E1, DS3/E3,
10/100Base-T Ethernet, and serial the PSAX 2300 system solves
many demanding and diverse network design challenges with ease.
®
The PacketStar
10 Gbps of switching capacity, the highest in the PacketStar
and carrier-class reliability. The PSAX 4500 system offers an
unmatched range of service capabilities, end-to-end traffic prioritiza-
tion, "any-service, any-channel" flexibility, and breakthrough voice
technology. The new high-performance backplane design supports 15
interface slots.
In four segments, the unique PSAX 4500 backplane allows each seg-
ment to be scaled independently to provide nonblocking, redundant
chassis bandwidths beyond 10 Gbps. Protection for two groups of four
multiport DS3, STS-1e, and E3 modules is provided via an N:1 protec-
tion scheme using rear access line interface modules. The protection
module can fill in so that on the failure of any one of the four mod-
ules, traffic is maintained.
Using the latest voice-compression technology, the DSP2x Voice
Server modules deliver service providers eight times the capacity of
traditional time division multiplex circuits while maintaining toll
quality and reducing costs by nearly 30 percent per channel. A single
PSAX 4500 system at the edge of the carrier network can transition
traffic from a large number of network customers over high-speed
OC-12c/STM-4c trunks into the ATM core, managing the whole
quickly and efficiently, down to the individual permanent virtual cir-
cuit.
This book uses a different kind of type for each kind of text you will see on
screens and equipment. In general, text you see in the book will closely
Application/Description
PSAX 2300 Multiservice Media Gateway offers car-
®
PSAX 2300 system provides net-
PSAX 4500 Multiservice Media Gateway offers up to
®
family,
Release 7.0
255-700-184
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