Psax 4500 Multiservice Media Gateway; Conventions; Text Types Used In This Document - Lucent Technologies PacketStar User Manual

Chapter 1 Getting Started

Conventions

PSAX 4500 Multiservice Media Gateway

Conventions

Text Types Used in This Document

®
PSAX 4500 Alarm Module User Guide, Issue 1
PacketStar
1-4
Supporting 15 slots for I/O and server modules—with provisions for OC-3,
OC-3c/STM-1, and OC-12c/STM-4c interfaces with 1:1 protection, 1:1 DS1
module protection switching, and a full range of interfaces such as DS0A,
DS1/E1, DS3/E3, 10/100BASE-T Ethernet, and serial—the PSAX 2300 sys-
tem solves demanding and diverse network design challenges with ease.
The PacketStar PSAX 4500 Multiservice Media Gateway provides carrier-class
reliability, with an unmatched range of service capabilities, end-to-end traffic
prioritization, "any-service, any-channel" flexibility, and breakthrough voice
technology. Ideal for the central office or a large enterprise multiservice
media gateway, the PSAX 4500 system provides highly reliable network
access for time-division multiplex voice, frame relay, 10/100BASE-T Ether-
net, and ATM data applications.
When it is functioning in a redundant operating mode and after it has experi-
enced a single-point failure, the PSAX 4500 system provides up to 4.2 Gbps
of ATM cell bus capacity. The total ATM cell bus capacity of the system may
also be scaled to provide nonblocking, nonredundant chassis bandwidths
beyond 4.2 Gbps.
The high-performance midplane design supports 15 interface slots. Module
protection for two groups of four or six multiport DS3, STS-1e, or E3 mod-
ules is provided via an N:1 protection scheme using rear access line interface
modules. The protection module provides backup so that on the failure of
any one of the modules in a group, traffic is maintained. 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 DS1/E1 IMA, DS3/E3, OC-3,
OC-3c/STM-4c, and OC-12c/STM-4c trunks into the ATM core, managing
the whole quickly and efficiently, down to the individual permanent virtual
circuit.
Through the use of the latest DSP voice technology, the PSAX 4500 system
supports advanced voice traffic over ATM (VToA) services for up to 6048 DS0
channels. As a multiservice media gateway—with H.248 call control, CAS,
PRI, GR-303, and V5.2 protocols, 3-Port DS3/STS-1e, 1-Port OC-3/STM-1
CES, and Tones and Announcements modules—the PSAX 4500 system pro-
vides packet solutions for voice over xDSL, trunking, tandem, and PRI offload
switching.
Table 1-1 shows how each typographical convention is used.
Release 10.0.0
255-700-598