Access Navigator / DCS Service Manager

System Clocking

￿￿ANSI T1.403, Section 6 & 7 (jitter, pulse mask transmission, receive sensitivity, framing formats)

￿￿Built-in CSU with loopback and BERT for testing the T1s

System Clocking

￿￿Primary and secondary sources from: DS1s, external clock source (such as BITS) or internal clock (minimum Stratum 4)

￿￿Automatic clock switching and holdover

Signaling

￿￿Robbed-bit and clear channel connections at DS0 level ￿￿FXS/FXO loop start and ground start robbed bit signaling ￿￿E&M robbed bit signaling

Management Interfaces

￿￿Command line interface (CLI) for provisioning and maintenance ￿￿RS-232 interface for local CLI

￿￿Ethernet Telnet support for remote CLI

￿￿Ethernet SNMP uses Telcordia® standard MIB for DS1 interfaces (RFC-1406) ￿￿TFTP and Xmodem support for flash memory software upgrades

Protocols

￿￿Command Line Interface (CLI)

￿￿Simple Network Management Protocol (SNMP) ￿￿Telnet /TFTP

Alarms

￿￿Critical, Major, and Minor alarm levels ￿￿DS1 alarms for LOS, LOF, AIS, and RAI ￿￿Front panel LED indicators

￿￿Output signal: relay contact closure and LED indication Maximum relay contact rating: 110V AC or DC @ 1A

￿￿Alarm inputs from dry contact closures Maximum input rating: 60V DC

2-8

August 2003

Access Navigator - Release 1.8

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Carrier Access Access Navigator user manual System Clocking, Signaling, Management Interfaces, Protocols, Alarms