Moog Components Group Prizm Fiber Optic USB 1.1 Link Manual
February 17, 2009
Page 6 of 9
Remote Hub Board (201030-xxx):
+5V Power Motherboard (D4)
- Lit green
+3.3V Power Motherboard (D5)
- Lit green
+5V Power Daughterboard (D7)
- Lit red
+3.3V Power Daughterboard (D8)
- Lit red
Fiber Link
- Tied to signal detect of the optical module. Lit
green when there is sufficient optical power at the
receiver.
USB Link
- Lit green when communication is established
with the Host board and a valid USB host is
connected to J1 of the Host Board.
Port 1
- Lit green when a valid USB 1.1 peripheral is
plugged into J9 and USB Link is illuminated.
Port 2
- Lit green when a valid USB 1.1 peripheral is
plugged into J8 and USB Link is illuminated.
Port 3
- Lit green when a valid USB 1.1 peripheral is
plugged into J10 and USB Link is illuminated.
Port 4
- Lit green when a valid USB 1.1 peripheral is
plugged into J11 and USB Link is illuminated.
1.6 Prizm Fiber Optic USB 1.1 Link Adjustment and Troubleshooting
This section is meant to lend guidance while troubleshooting any problems that arise during operation
of either the Local Host or Remote Hub boards.
1.6.1 POWER SECTION TESTING:
If both the +5V Power LED and the +3.3V Power LED are out on the motherboard:
•
Check for reversed polarity of power supply leads.
•
Check for proper supply voltage (+5VDC min)
•
Check for shorted power supply.
If only the +5V Power LED is out on the motherboard:
•
5V DC is present at the source.
•
If +5V is not available replace the board with a spare.
•
If +5V is available check the +5V LED.
If only the +3.3V Power LED is out on the motherboard:
•
5VDC across D6 (replace board if +5VDC is not available)
•
3.3VDC across C14.
•
If +3.3V is not available replace the board with a spare.
•
If +3.3V is available check the +3.3V LED.
If both the +5V Power LED and the +3.3V Power LED are out on the daughterboard:
•
Verify that the daughterboard is seated properly on the motherboard’s data headers.
