There are a total of four (4) RJ45 ports on the card numbered from 1 to 4. The topmost port is one (1). This information applies to the rebranded BlackBox card KV1609C Serial Control Card. The information relates to the Avocent/Cybex 4XP/XP4000/XP4040 chassis and the BlackBox ServSwitch Multi EXP chassis.
| rear of the XPSI card. Pin |
Name | Direction | Description |
|---|---|---|---|
| 1 | DTR | ![]() |
Data Terminal Ready |
| 2 | RTS | ![]() |
Request to Send |
| 3 | GND | ![]() |
Signal Ground |
| 4 | TXD | ![]() |
Transmitted Data |
| 5 | RXD | ![]() |
Received Data |
| 6 | GND | ![]() |
Signal Ground |
| 7 | CTS | ![]() |
Clear to Send |
| 8 | DSR | ![]() |
Data Set Ready |




