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Chassis SC745 User's Manual
Rear Jumpers and Pin Definitions
The jumpers are used for internal texting only.
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
identified 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.
Connector
Pins
Jumper
Setting
3 2 1
3 2 1
Figure D-2. Rear Jumpers
JP8
ACTLED
JP9
Jumper Settings
Jumper
Jumper Settings
Note
JP8
2-3: Default
This is used for internal testing only.
JP9
1-2: Default
This is used for internal testing only.
ACTLED
Open: Default
This is used for internal testing only.