Circuit Board; Data Processing; Voice Processing - ADTRAN Total Access 372E Installation And Maintenance Manual

Circuit Board

!
WARNING
Do not open the Electronics Module or attempt to remove the Circuit Board
from the Electronics Module.
The SBU 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, G.729AB
61287723G1-5B
Components and Interfaces
9