Circuit Board; Data Processing; Voice Processing - ADTRAN Total Access 374 Installation And Maintenance Manual

Total Access 374 4-POTS, 4-GigE MDU ONT Installation and Maintenance Guide

Circuit Board

The Circuit Board is contained within the Electronics Module Housing.
!
WARNING
Do Not open the Electronics Module Housing or attempt to remove the
Circuit Board from the Electronics Module.
The ONT contains a single circuit board contained within the Electronics Module that
provides the following functions:

■ Data Processing

■ Voice Processing

■ Alarm Reporting
Data Processing
The following data processing functions are performed:
■ Traffic management (priority queuing, scheduling, policing and traffic shaping)
■ Up to 16 VLANs
■ IGMP Snooping
■ QoS with four traffic classes per IEEE 802.1p
■ Full IEEE 802.1Q VLAN ID processing per port
■ 64 byte to 1600 byte packet sizes
Voice Processing
The POTS Voice Processing feature set is listed below:
■ Echo cancellation per ITU-T G.168 - up to 16 ms tails
■ Caller ID FSK tone generation
■ Fixed or adaptive jitter buffer
■ Modem, fax tone detection
■ DTMF detection/generation
■ RTP/RTCP
■ Silence suppression
■ Comfort noise generation
■ SIP
■ MGCP
■ GR-303
■ RFC 2833
■ Voice activity detection
■ Configurable framing size - 10 ms, 20 ms, or 30 ms
■ G.711
1-8
µ law/A-law, G.726-32, G.722, G.729
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61287703G1-5B