System clocking, Signaling, Management interfaces – Carrier Access Access Navigator User Manual
Page 44: Protocols, Alarms

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