Working Principle And Signal Flow - Huawei ATN 950B Hardware Description

ATN 950B Multi-service Access Equipment
Hardware Description
Function and Feature
Clock

5.5.3 Working Principle and Signal Flow

AND1EX1 mainly consists of the service access module, service processing module,
management module, clock module, and power supply module
Figure 5-9
Figure 5-9 Block diagram for the functions of the AND1EX1
1 x 10GE signal
Transmit Direction
The service packets from AND1CXPA/AND1CXPB are sent to the service processing module
through the backplane-side interface of the EX1. The service processing module buffers and
schedules the packets. Then, the service processing module sends the processed packets to the
service access module, where coding/decoding, and serial/parallel conversion are performed.
Finally, the service access module outputs the packets through the 10 GE interface on the front
panel.
Receive Direction
The 10 GE interface on the front panel receives 10 GE service signals. Then, the service access
module performs serial/parallel conversion, and coding/decoding on the services, and then sends
the services to the service processing module. The service processing module buffers and
Issue 03 (2012-07-23)
shows the block diagram for the functions of the AND1EX1.
Service access
module
Management bus
Management
module
Each module on the board
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Description
Supports automatic loopback release at the port.
Supports synchronous Ethernet.
Supports SSM protocol.
Supports IEEE 1588V2 protocol.
Supports 1588 ACR clock.
Service
Service signals
processing
module
Management bus
Clock
module
Management bus
5.0V
Power
3.3V
supply
1.8V
module
1.2V
5 Physical Interface Card
Back plane
Service signals
Clock signals
Clock signals
System power
-48V/-60V
System power
-48V/-60V
CXP
CXP
CXP
supply
supply
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