2-3 Front Jumper Locations and Pin Defi nitions
Explanation of Jumpers
To modify the operation of the backplane,
jumpers can be used to choose between
optional settings. Jumpers create shorts
between two pins to change the function
of the connector. Pin 1 is identifi ed with
a square solder pad on the printed circuit
board. Note: On two pin jumpers, "Closed"
means the jumper is on and "Open" means
the jumper is off the pins.
Jumper Settings
Jumper Jumper Settings Note
JP5
Open = OXAE
Closed = OXA8
Read Boot Strap ROM from Address A8
LED2
D13
JP5
Jumper Settings
LED NORMAL STATE SPECIFICATIONS
Heartbeat LED (LED2) ON Blinks during normal operation
Overheat LED (D13) OFF
Solid red when the 1078 chip
is overheated
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