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2-4 August 2003 Access Navigator - Release 1.8
Access Navigator / DCS Service Manager
Features and Benefits
Features and Benefits
Functions
The Access Navigator / DCS Service Manager is a transport element that combines the functions of a
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 (see Figure
2-2). 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.
Services
The Access Navigator provides all the grooming and filling functions of a 1/0 digital crossconnect
system to maximize T1 usage. With carrier/customer demarcation testing, carriers are able to decrease
maintenance costs and labor, while increasing service availability. Fractional voice and data services
from multiple customers and applications are combined by the Access Navigator to save recurring
backhaul transmission costs, and capital costs on switch or router ports.
Facilities
With both NEBS and customer premise certifications, the Access Navigator can be located in carrier
racks or on customer walls. Space, power, and installation labor are dramatically reduced in comparison
to old generation digital crossconnect and CSU or NIU shelves. Additional Quad T1 Framer cards can
be installed while the Access Navigator is in service to provide from 4 to 32 DS1/CSU connection ports.
TFTP and Xmodem utilities permit software updates to redundant systems without affecting service.
Management
Access Navigators provide management access via Ethernet SNMP, Telnet CLI, and RS-232 CLI (see
Figure 2-3). Valet™ and NetworkValet™ EMS software provides a graphical user interface (GUI) for
SNMP management. Flow-through provisioning of the remote Access Bank II and testing control over
T1 connections reduce truck rolls and monitors voice and data service availability at customer locations.