D-Link DES-1228 user manual Sdram for CPU, Flash Memory, Port Functions, Front panel

SDRAM for CPU		8M Bytes
Flash Memory		Prom 2M Bytes
Port Functions
	- 24 x 10/100BaseT ports
LAN	- Compliant with the following standards:
	1.		IEEE 802.3 compliance
	2.		IEEE 802.3u compliance
	3.		Support Full and Half Duplex operations
	- 2 Combo 1000Base-T/SFP ports

-1000Base-T/SFP ports compliant to the following standards:

1.IEEE 802.3 compliance

2.IEEE 802.3u compliance

3.IEEE 802.3ab compliance

4.IEEE 802.3z compliance

5.Support Full and Half Duplex operations

Combo ports in the and the Gigabit mode only support Full

front panel	duplex.
	6. The SFP ports support 1000M Full
	Duplex operations or 100M Full and Half
	Duplex operations
	- SFP Transceivers Supported:
	1.	DEM-310GT (1000BASE-LX)
	2.	DEM-311GT (1000BASE-SX)
	3.	DEM-314GT (1000BASE-LH)
	4.	DEM-315GT (1000BASE-ZX)
	5.	DEM-312GT2 (1000BASE-SX), up to
		2km

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