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3-4 August 2003 Access Navigator - Release 1.8
Access Navigator / GR-303 + Data Host
Features and Benefits
Features and Benefits
The Access Navigator / GR-303 + Data Host is a transport element that combines the functions of a GR-303
digital terminal, 32-port T1 digital crossconnect system, T1 channel/data service unit (CSU), T1 diagnostic
test equipment, and Access Bank® II host controller into a modular chassis 1½ rack units high. Ethernet
SNMP, optional redundancy, and modular T1 expansion provide carrier-class service protection and
management at either carrier or customer located T1 service access points.
Access Navigator / GR-303 + Data Host offers an integration of:
l 32 T1 port GR-303 remote digital terminal
l GR-303 to TR-08 translation for CA’s Access Bank® I/TR-08
l GR-303 Direct Inward Dial (DID) support when used with Lucent 5ESS switches
l Digital crossconnect system
l T1 CSUs and demarcation testing
l Ethernet Telnet and SNMP management
l Optional Controller redundancy
l Modular Quad T1 expansion
l NEBS Certified
GR-303 Services
The Access Navigator / GR-303 + Data Host provides T1 local voice and data services to multiple customers
(see Figure 3-3). Using GR-303 switching protocol for call concentration, the Access Navigator reduces
recurring backhaul transmission costs and switch port costs by up to a factor of 4.
By using CA's Access Bank® II and Adit 600 products at the customer premise, an end-to-end distributed
voice and data digital loop carrier and remote management system is provided. Standard T1 connections
from customer PBXs and key systems may be concentrated or bypassed from the GR-303 groups.
The power of a 32 T1 port voice and data switch/concentrator and remote service management system is
contained in only 1½ rack units of space. Integrated testing and optional common equipment redundancy
assure carrier-class service availability.