Huawei ATN 950B Hardware Description page 67

ATN 950B Multi-service Access Equipment
Hardware Description
schedules the service packets, and finally outputs the packets through the backplane-side
interface.
Service Access Module
This module performs the following functions:
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Service Processing Module
This module performs the following functions:
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Management Module
This module is used with the AND1CXPA/AND1CXPB to manage and control each module on
the EX1.
Clock Module
This module performs the following functions:
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Power Supply Module
This module provides the DC power of the following specifications to each module on the EX1.
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Issue 03 (2012-07-23)
In the receive direction, this module receives the 10 GE services from the interfaces on the
front panel, performs serial/parallel conversion, and coding/decoding, and then sends the
services to the service processing module.
In the transmit direction, this module receives the service packets from the service
processing module, performs coding/decoding, and serial/parallel conversion on the
packets, and then outputs the packets through the 10 GE interfaces on the front panel.
This module extracts the synchronous Ethernet clock.
In the receive direction, this module receives and buffers the service packets from the
interface conversion module. Then, this module schedules packets based on the access
capability of the EX1 and the access bandwidth settings at the interface. Finally, this module
outputs the packets through the backplane-side interface.
In the transmit direction, this module receives service packets from the AND1CXPA/
AND1CXPB, buffers and schedules the packets. Finally, this module outputs the packets
to the service access module.
This module extracts and inserts IEEE 1588 V2 packets.
Provides the working clock for each module on the EX1.
Supports the synchronous Ethernet and SSM protocols.
Supports the IEEE 1588 V2 protocol.
Supports the 1588 ACR clock.
5.0 V
3.3 V
1.8 V
1.2 V
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