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W2DRZ CT-2 Controller board. See below for further description - View Schematic
The PIC18F4580 processor is in the center. It and all other
IC's are mounted in sockets for easy replacement in case of
damage.
The five LED's are status indicators for use when checking
out the controller. Viewing the LED's is not required in normal
operation.
From
left to right, the 5 connectors in the front are listed below.
| Left | Female DB9 | For 9600 baud connection to controlling PC. Use a standard serial cable, female to male connectors. |
| Left Center | RJ45 | Female 8 pin modular data jack - Input for Incremental encoders. |
| Center | Male DB9 | Auxiliary connector for Parallel or Mouse interface and for PIC programming and debugging. |
| Right Center | RJ11 | 6 pin modular telephone jack - Input for Absolute encoders. Matches US Digital A2 encoder cabling. |
| Right | DIN 8 Jack | Input for +12 VDC, Outputs to drive position control relays, A/D Elevation and Azimuth inputs. |
Click on the links in the table for pinouts for all the connectors.
| At the front of the board (back side of the picture above) is a push button and a set of 4 dip switches. The push button is no longer used. The dip switches are used to set the serial baud rate. Also shown is an attached LCD display unit: More information on LCD attachment and use of the switches. |