Chapter 3
Structure
and Principle
Confidential and Proprietary Information of ZTE CORPORATION
11
On the front panel of ZXR10 2920/2928/2952, there are power
indicators, RUN indicators, fixed Ethernet electrical interfaces,
Ethernet optical interfaces, and one serial configuration port.
The AC or DC power socket and power switch are located on the
rear panel.
Major hardware of the ZXR10 2920/2928/2952 is the Ethernet
switching main board, which is indispensable in any type of
configuration.
ZXR10 2920
Front panel of the ZXR10 2920 is shown in Figure 2.
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I G U R E
2
F
R O N T
P
A N E L
O
F
Z X R 1 0
2 9 2 0
Ethernet switching main board of ZXR10 2920 is KEBT.
ZXR10 2920 provides the following types of access ports:
Sixteen fixed 10/100BASE-T Ethernet ports, support
fullduplex or semiduplex, 10/100M & MDI/MDIX self-adaption
function, VCT auto test.
Two fixed 10/100/1000BASE-T interface.
One expand slot, expansile dual-channel 1000M optical
interface, double 1000M electrical interface, 1000M one
optical & one electrical upward subboard.
One Console port is to realize the management and
configuration of various services.
There are 32 indicators on the front panel of the ZXR10 2920,
indicating the status of the 16 10/100Base-T ports. Every
interface has two indicators, indicating semiduplex/fullduplex &
LNK/ACT;four indicators show two 10/100/1000 BASE-T port &
two indicators for each port showing LNK & LNK/ACT status;two
system indicators show the system running work status.
System indicators include power indicator (PWR) and running
indicator (RUN).
f
After the system is powered up, the PWR indicator is on
and the RUN indicator is off.
f
BootROM starts to load the version. If the version is
unavailable, the states of indicators do not change. If
the version is loaded normally, the RUN indicator flashes
at 1Hz.
Front Panel
Interfaces
Indicators
