Huawei ATN 950B - Front Panel

l In the receive direction, this module receives and buffers the service packets from the
interface conversion module. Then, this module schedules packets from different
interfaces. Finally, this module outputs the packets through the backplane-side interface.
l In the transmit direction, this module receives service packets from the AND1CXPA/
AND1CXPB, identifies the destination interfaces of the packets, and buffers and schedules
the packets based on the access capability of the EM4T and the access bandwidth setting
at each interface. Finally, this module outputs the packets to the service access module.
l This module extracts and inserts IEEE 1588 V2 packets.
Management Module
This module is used with the CXP to manage and control each module on the EM4T.
Clock Module
This module performs the following functions:
l Provides the working clock for each module on the EM4T.
l Supports the synchronous Ethernet and SSM protocols.
l Supports the IEEE 1588 V2 protocol.
l Supports the 1588 ACR clock.
Power Supply Module
This module provides the DC power of the following specifications to each module on the EM4T.
l 3.3 V
l 3.0 V
l 2.5 V
l 1.2 V
5.1.4 Front Panel
On the front panel of the AND1EM4T, there are indicators and interfaces.
Appearance of the Front Panel
Figure 5-2 shows the appearance of the front panel of the AND1EM4T.
Figure 5-2 Front panel of the AND1EM4T
Indicator
The following indicators are present on the front panel of the AND1EM4T:
ATN 950B Multi-service Access Equipment
Hardware Description 5 Physical Interface Card
Issue 03 (2012-07-23) Huawei Proprietary and Confidential
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