B-6 Sun Blade 1500 Service, Diagnostics, and Troubleshooting Manual • December 2004
TABLE B-6 describes the behavior of the status LEDs.
B.1.6 USB Ports
There are 7 external USB ports for the Sun Blade 1500 workstation in standard
configurations. The two USB ports on the bezel and the two USB ports on the rear
panel are USB 1.1 standard. The three USB ports on the IEEE 1394/USB 2
combination card are USB 2.x standard. Though the ports are of different standards,
they have the same pinouts.
FIGURE B-5 identifies a USB port.
FIGURE B-5 USB Port
TABLE B-7 lists the pinouts.
TABLE B-6 Twisted-Pair Ethernet LED Status
LED Status
Amber - Link When illuminated, a 10/100/1000 Mbps link exists.
Green - Activity When flashing, indicates transmit or receive activity.
TABLE B-7 USB Port Pinouts
Pin Signal
1 VCC, 5VDC
2 Data -
3 Data +
4 Ground
1234