Panasonic 1200N - Manual (Page 49)

Hardware Specifications Hardware Configuration and Overview of Functions
Centillion 1200N ATM Switch User Manual 4-7
NTP 297-8103-903
Functional Blocks
A functional description of each functional block in the line card is shown in the
following table.
Hardware Block Description of Functions
Line card PHY ■ Conversion of physical media
(e.g., E/O conversion, O/E conversion)
■ Reception clock recovery
■ Transmission clock generation
■ Frame termination
■ Cell alignment
■ Speed conversion
■ Line loop-back control
MUX ■ Cell multiplexing/demultiplexing of multiple PHY
■ Cell loop-back control
ALT ■ SSO (Switch Specific Overhead) generation
(reception side)
■ Cell header conversion (transmission side)
■ Policing control
■ Flow monitor (e.g., passing cell count)
■ OAM function (Fault Management)
IXB ■ Cell storage buffer (32K cell buffer)
■ QoS five-class (CBR, rt-VBR, nrt-VBR, ABR, UBR)
■ Two-class cell loss priority control
■ EPD (Early Packet Discard)
■ BP (Back Pressure) reception control
■ Congestion notification control
OXB ■ Cell storage buffer (32K cell buffer)
■ QoS five-class (CBR, rt-VBR, nrt-VBR, ABR, UBR)
■ BP (Back Pressure) generation control
■ Broadcast cell control
■ ABR (ER control, binary mode)
■ Congestion notification control
■ Shaping