T1 interface (continued), Adpcm signaling, Management – Carrier Access Network Device Axxius 800 User Manual
Page 434: Synchronization, Network standards, Clocking

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Axxius 800 - Release 2.2
Quad DS1 ADPCM Card
Technical Specifications
T1 Interface (continued)
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Jitter: meets AT&T Pub. TR-62411
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Solid-state fuseless overvoltage and overcurrent line protection
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Channel status LEDs
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Less than 3 ms signaling latency
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Less than 10 ms overall Axxius 800 system signaling latency
ADPCM Signaling
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Clear Channel Signaling passed on 64K clear channel
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24-channel 32 Kbps ADPCM compression
Management
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Managed by Axxius 800 DS1 or DS3 Controller Craft or SNMP Interface
Synchronization
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Provides reference clock to backplane from selected T1
Network Standards
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RFC 2495
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ANSI T1.403-1995, T1.231-1993
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ITU G.703, G.704
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32 Kbps ADPCM voice compression per ANSI T1.302-1989
Clocking
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Loop-timed from any T1
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External from BITS clock input (T1.101, T1.102 signal type)
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Revertive or non-revertive (provisionable) clock switching provides automatic
backup to secondary T1 should the primary T1 fail
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Operates as a Stratum 4E device as defined by Telcordia GR-1244-CORE and
AT&T TR 62411