Ensoniq Control 16 RJ-45 Connector Pinout
by matt on Sep.16, 2009, under Informational
As I stated in my first Control 16 post, the C16 is meant to connect to a proprietary Ensoniq PCI card (which I don’t have.) So instead I have been reverse engineering the C16 interface so that I can convert it for use with my PC. The C16 has two connectors on the back a 1/4″ jack, which is used to connect an optional footswitch; and an RJ-45 connector, which is proprietary. Both connectors are mounted on a board called PWR/SER_I/F.
The pinout of the RJ-45 connector is as follows (pin 1 is on the left when looking into the connector, therefore on the right in the photo above):
| 1 | RS-422 data in (+) |
| 2 | RS-422 data in (-) |
| 3 | RS-422 data out (+) |
| 4 | +12v |
| 5 | GND |
| 6 | RS-422 data out (-) |
| 7 | GND |
| 8 | +5v |
While the above pinout may appear a little random at first glance, when using standard CAT5 cable it means that the pairs are RS422 in; RS422 out; +5v and GND; and +12v and GND.
Here is a schematic for a RS422 to RS232 converter, similar to what I am using myself (though I have been providing power from a lab power supply at this stage.)
Please note that while I have successfully connected power and data to my control 16 without blowing it up, this information is only provided as a guide and I recommend double checking it against your actual hardware before connecting anything to your control 16.

