from :http://www.allpinouts.org/index.php/APC_USB_cable_schematic
connector or cable wiring APC part# 940-0127B
10 pin RJ50 (10P10C) male connector to the APC cable
4 pin USB A or USB B plug connector to the PC
| APC Pin | USB Pin | Description |
|---|---|---|
| 1 | 1 | USB +5V (red wire) |
| 4 | shield | chassis ground |
| 7 | 4 | USB GND (black wire) |
| 9 | 2 | USB Data- (white wire) |
| 10 | 3 | USB Data+ (green wire) |
Notes
- You cant use a RJ45 because pin 8 is the latest pin, you will need pin 9 and 10 for the cable. Only a RJ50 will be ok to use.