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System clocking, Signaling, Management interfaces – Carrier Access Access Navigator User Manual

Page 44: Protocols, Alarms

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2-8

August 2003

Access Navigator - Release 1.8

Access Navigator / DCS Service Manager

System Clocking

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

formats)

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

System Clocking

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

clock (minimum Stratum 4)

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Automatic clock switching and holdover

Signaling

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Robbed-bit and clear channel connections at DS0 level

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FXS/FXO loop start and ground start robbed bit signaling

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E&M robbed bit signaling

Management Interfaces

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Command line interface (CLI) for provisioning and maintenance

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RS-232 interface for local CLI

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Ethernet Telnet support for remote CLI

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Ethernet SNMP uses Telcordia® standard MIB for DS1 interfaces (RFC-1406)

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TFTP and Xmodem support for flash memory software upgrades

Protocols

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Command Line Interface (CLI)

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Simple Network Management Protocol (SNMP)

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Telnet /TFTP

Alarms

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Critical, Major, and Minor alarm levels

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DS1 alarms for LOS, LOF, AIS, and RAI

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Front panel LED indicators

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Output signal: relay contact closure and LED indication

Maximum relay contact rating: 110V AC or DC @ 1A

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Alarm inputs from dry contact closures

Maximum input rating: 60V DC