6 
 
Figure 4: SMU300 Rear View 
 
Item  Description 
1  PSU. 
2  Keyboard and mouse PS/2 ports (keyboard and mouse may be connected through USB 
ports). 
3  USB ports. 
4  COM1 (serial connector A). This port is preferred for serial communications, since it works 
at boot time and after boot time. 
5  VGA video out. 
6 
 
ETH0.(left) (Note that the LAN1 LED on the front panel correlates to the ETH0 port.) 
LED indicators: 
•  Off  - No connection or 10 Mb/s 
•  Green – 100 Mbps 
•  Amber – 1 Gbps 
ETH1.(right) (Note that the LAN2 LED on the front panel correlates to the ETH1 port.) 
LED indicators: 
•  Off  - No connection or 10 Mb/s 
•  Green – 100 Mbps 
•  Amber – 1 Gbps