Safety Information and Technical Specifi cations
2-3 Front Jumper Locations and Pin Defi nitions
A | A | A | A | A | A | A | A |
C | C | C | C | C | C | C | C |
FLASH EN
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 12 | 14 | 16 | 18 | 20 | 22 | 24 | 26 |
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| 11 | 13 | 15 | 17 | 19 | 21 |
| 23 | 25 |
A |
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B |
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C |
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D |
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E |
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F |
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G |
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H |
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J |
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K |
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L |
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M |
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N |
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P |
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R |
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T |
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U |
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V |
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W |
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Y |
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AA |
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AB |
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AC |
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AD |
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AE |
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AF |
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PCB EDGE |
PCB EDGE |
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.
3 2 1
Connector
Pins
Jumper
3 2 1
Setting
Jumper Settings
Jumper | Jumper Settings | Note |
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| Enabled allows qualified technician |
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| to reprogram the Flash EE Prom and |
Flash Enable | Open = Disable | update the chip fi rmware |
| Closed = Enabled |
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| For normal operation, leave this |
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| jumper open. |
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