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| PMAC2A PC104 Hardware Reference Manual |
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| J8 (JHW) Handwheel Encoder Connector |
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| Pin# | Symbol | Function | Description |
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| 1 | GND | Common | Reference voltage |
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| 2 | HWA1+ / PUL1+ | Input/Output | HW1 channel A or pulse output selected by jumpers E3 and E4 |
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| 3 | Input/Output | HW1 channel a or pulse output selected by jumpers E3 and E4 |
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| 4 | HWB1+ / DIR1+ | Input/Output | HW1 channel b or direction output selected by jumpers E3 and E4 |
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| 5 | Input/Output | HW1 channel b or direction output selected by jumpers E3 and E4 |
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| 6 | HWA2+ / PUL2+ | Input/Output | HW2 channel a or pulse output selected by jumpers E3 and E4 |
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| 7 | Input/Output | HW2 channel a or pulse output selected by jumpers E3 and E4 |
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| 8 | HWB2+ / DIR2+ | Input/Output | HW2 channel b or direction output selected by jumpers E3 and E4 |
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| 9 | Input/Output | HW2 channel b or direction output selected by jumpers E3 and E4 |
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| 10 | +5V | Output | Supply voltage |
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| J10 Ethernet Port (Optional) |
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| Pin # | Function |
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1TXD+
2TXD-
3RXD+
4No Connect
5No Connect
6RXD-
7No Connect
8No Connect
9No Connect
10 | No Connect |
This connector is used for Ethernet communications from the
When making a direct connection to a Host communication Ethernet card in a PC a cat 5 networking crossover cable must be used. A standard cat 5 straight through networking cable cannot be used in this scenario. When using a connection to a network hub or switch, the standard cat 5 straight through networking cable must be used, and not a crossover cable.
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