Indicator Function
SD interface ACT (green)
On: this interface is inserted with SD card
Off: this interface has no SD card or SD card is
exceptional
Flash: SD card is under reading/writing
ACT (green)
Flash: data receiving/sending on 10/100/1000 Base-T
Ethernet interface
LINK (green)
On: 10/100/1000 Base-T Ethernet interface link has
been established
Off: 10/100/1000 Base-T Ethernet interface is not
connected with any other interface
4.3.2 Power Module
ZXR10 8912E/8908E/8905E/8902E core switches address the practical application need.
To meet the strict requirement for equipment reliability, hot backup is designed for power
supply Module, and both 48V DC power supply and 220V AC power supply are designed.
DC power supply adopts 1+1 mode; AC power supply adopts 1+1 backup or 2+1 backup
depending on different racks, which highly improves the reliability of the power system.
Besides, 8900E series power supply also provides multiple intelligent protection
mechanisms, which can perform protection, detection and fault report for the power
supply according to voltage, current and temperature, including output overvoltage
protection, output overcurrent protection, output undervoltage protection, output
undercurrent protection, overtemperature short-cuicuit protection, input overvoltage
protection, input undervoltage protection, overtemperature, overvoltage, fan fault and
current limit alarm report function, voltage detection report function, current detection
report function and temperature detection report function.
The diagram of 8912E/8908E/8905E DC power rear panel is as shown in Figure 4-21.
Figure 4-21 8912E/8908E/8905E DC power board diagram
The diagram of 8912E/8908E/8905E AC power rear panel is as shown in Figure 4-22.
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