Testing and Configuration
Initially I hooked up the controller to a power supply, jumped the 24-pin connections green wire to a black wire, and the Touch-2100 and five fans came to life. You can also see that the default color of the Touch-2100 is red, and while it might be a bit grainy to see now, just wait a second.
What you see is a C/F button to change temperature scales, a plus and minus key for adjusting fan speeds and thermal alarms, and a color button on the left side. To the right you see dashes that will progress across the section showing the fans are spinning, it denotes the RPM, temperature of the probe, and its alarm setting for each of the five channels.
Not only did I swap out to the green backlighting for this image, I also grabbed a hold of the channel one thermal probe to gauge its accuracy. You might also notice that similar fans are reading two different speeds, and this is due to the 100 RPM increment scale of the controller. If the RPM rises too far, the controller reads the next 100 RPM, not the actual speed.
Swapping out now for the blue backlighting I also went ahead and dropped all the fans as low as the controller would allow. What I find is that it seems that 1000 RPM is the starting point for fan control, no matter its original speed. Don't be discouraged if you set this panel to lower the speeds and when done it seems to do nothing. After a few seconds the new settings take a hold as the fan controller automatically steps down the voltage for you.