KYLAND KIEN8000, Руководство пользователя

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Kyland Telecom
第二章 性能指标
1.5
Service Interface
1
．
8 Ethernet ports 10Base-T/100Base-T, each is adatpive to 10M or 100M and half-
duplex or full-duplex mode. AutoMDI/MDI-X connection is supported. The
transmission distance is less than 100m.
2
．
The Ethernet port is ableo to source DC24V power supply with max 300MA
current.
3
．
Conform to IEEE802.3/802.3U/802.3X.
1.6
Service Functions
KIEN8000 offers such service functions as following:
1
．
LED Indicator
The LEDs of the front panel indicate the port status correctly including transmission
rate, link status and system status.
2
．
Layer-2 Switching
Switches work in two ways: Cut-Through and Store-and-Forward. In Cut-Through, a
data packet is immediately relayed further after detecting the target address; in Store-
and-Forward, a data packet is first read-in completely and checked for errors before
the switch relays the same. KIEN1000-PSE employs Store-and-Forward that is a
switching mode widely used.
3
．
Power Sourcing
Each Ethernet port supplies DC24V voltage and up to 300mA current to remote
Ethernet instruments or PoE Powered Devices (PD).
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