Casio HS-3000/4M 3.9Keyboard & Mouse Connector, JP12: RS-422/485Receiver Enabled/Disabled Select, JP13: RS-422/485Transceiver Enabled/Disabled Select

JP12: RS-422/485 Receiver Enabled/Disabled Select

JP12	Description
Short 1-2(default)	Always Enable
Short 3-4	Enable by writing the REG.2EFh BIT1=1
All Open	Always Disable

2 6

15

JP13: RS-422/485 Transceiver Enabled/Disabled Select

JP13	Description
Short 1-2 (default)	Always Enable
Short 3-4	Enable by ”-RTS” signal
Short 5-6	Enable by writing the REG.2EFh BIT0=1
Short 7-8	Always Disable

2 8

1 7

3.9Keyboard & Mouse Connector

The HS-3000/4M offers two connection methods for keyboard connector, at location CN19 is 5-pin connector, location CN21 is PS/2 6-pin Mini DIN connector.

CN19: 5-pin Keyboard Connector

PIN	Description
1	Keyboard Clock
2	Keyboard Data
3	N/C
4	GND
5	+5V

1	2	3	4	5
Keyboard Clock	Keyboard Data	N/C	GND	+5V

CN21: PS/2 6-pin Mini DIN Keyboard Connector

PIN	Description
1	Keyboard Data
2	N/C
3	GND
4	+5V
5	Keyboard Clock
6	N/C

Keyboard	3 GND
Clock
	5
	1 Keyboard
	Data
	2 N/C
	6
N/C	4 +5V

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