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KD3838, 3030, 2525

DIP Switch Settings and Functions

S1 Mode Selection Switch

When bit 1 of this switch is OFF at initialization (i.e., when power is first applied or whenever the reset switch on the rear panel is pressed), the normal mode is enabled. When bit 1 is ON,  the test mode is enabled.

Bit 1		Bit 2		Bit 3	Bit 4	Bit 5	Bit 6	Bit 7	Bit 8
OFF	Normal mode	ON	Mode 2	Mode 1	Rate 2	Rate 1	Beeper  ON	Terminator LF	ASCII
		OFF					Beeper OFF	Terminator CR+LF	Binary
ON	Test mode	ON	Interface test	X (don't care)
		OFF

Mode selection and Data Transfer Rate
(Bits 2 through 5 with Bit 1 OFF)

		Bit 1	Bit 2	Bit 3	Bit 4	Bit 5
Remote mode		OFF	OFF	OFF	OFF	OFF
Point mode		OFF	ON	ON	OFF	OFF
Switch Stream	110 Data/s	OFF	OFF	ON	ON	ON
	70				ON	OFF
	35				OFF	ON
	20				OFF	OFF
Stream	110 Data/s	OFF	ON	OFF	ON	ON
	70				ON	OFF
	35				OFF	ON
	20				OFF	OFF

Beeper ON/OFF (Bit 6)

Whenever the cursor or stylus is within the effective digitizing area and a button is pressed, if normal data is received, a bepper may be sounded one time. This bit establishes whether or not the beeper will be sounded.

ON	Beeper is sounded
OFF	Beeper is not sounded

Terminator Selection (Bit 7)

ON	LF (line feed) is output as the terminator
OFF	CR+LF (Carriage return and line feed) is output as the terminator

Data Format Selection (Bit 8)

ON	Data is output in ASCII format (BCD format when using the parallel interface)
OFF	Data is output in Binary format

Interface Test (Bits 1 and 2 ON)

The interface test is performed by connecting the required dummy connector (see separate section on the interface) and verifying digitizer input and output operation.

Normal operation	Beeper sounds every 2 seconds
Faulty operation	Beeper sounds continuously

S2:  RS-232C Interface Switch

For details, see the separate section on the RS-232C interface.

3.4 Bottom Panel Switch (S3) Description

This switch is used to establish transfer conditions and address, depending on the interface used.

	Bit 1	Bit 2	Bit 3	Bit 4	Bit 5	Bit 6	Bit 7	Bit 8
RS-232C	Character length 7/8 bits	Stop bits		Parity		Baud rate multiplier 1/64, 1/16	Inch/millimeter	Not usable (always OFF)
Parallel	Not usable (always OFF)

Bits 1 through 6

These bits are described in the section on the RS-232C interface. They may not be used
(are always OFF) when using parallel interface.

Inch/Millimeter (Bit 7)

ON	Inch Specifications (0.005 inch resolution)
OFF	Metric specifications (0.1 mm resolution)

Bit 8

(Not usable, always OFF)

4.2.2 Operation Description

(a) Baud Rate Setting

The baud rate is set by a combination of bit 2 of switch S3 on the bottom of the digitizer and switch S2 on the interface panel.

Baud Rate	S3	S2
	Bit 6	Bit 1	Bit 2	Bit 3	Bit 4
9600	OFF	ON	OFF	ON
4800	OFF	ON	OFF	OFF
2400	ON	ON	OFF	ON
1200	ON	ON	OFF	OFF
600	ON	OFF	ON	ON
300	ON	OFF	ON	OFF
150	ON	OFF	OFF	ON

(b) Parity Setting

The input/output data parity check is set by means of bits 4 and 5 of switch S3 on the bottom of the digitizer.

	Bit 4	Bit 5
Odd	ON	OFF
Even	ON	ON
None	OFF

(c) Stop Bit Setting

The number of input/output stop bits is set by means of bits 2 and 3 of switch S3 on the bottom of the digitizer.

Stop bits	S3
	Bit 2	Bit 3
1	OFF	OFF
1-1/2	OFF	ON
2	ON	OFF
None	ON	ON

(d) Character Length Setting

The input/output data character length is set using bit 1 of switch S3.

ON	7 bits
OFF	8 bits

4.2.3 Standard Switch Settings at Time of Shipping

S1 (Rear)

BLACK in the lower row indicates OFF

	1	2	3	4	5	6	7	8
ON
OFF

S2 (Interface)

	1	2	3	4
ON
OFF

S3 (Bottom)

	1	2	3	4	5	6	7	8
ON
OFF

Factory presets

Function	Factory preset
Baud rate	9600 bps
Data format	ASCII
Character length	7 bits
Terminator	CR+LF
Parity	None
No. of Stop Bits	2
Inch/millimeter	Millimeter
Beeper ON/OFF	ON
Normal/Test mode	Normal
Mode	Remote mode