Robin RS 1100, User Manual, Page: 14 / 104

4
Pin assigmentDefinition 2 of HR15 connector
PIN Definition Type Description
1
CLK1 I/O Keyboard Clock Signal
2
DATA1 I/O Keyboard Data Signal
3
VCC P
Power : +5V
4
TXD O
RS232 Output
5
RXD I
RS232 Input
6
CLK2 I/O
PC Clock Signal
7
DATA2 I/O PC Keyboard Signal
8
GND P
Ground
9
D- I/O
USB Signal
10
D+ I/O
Communication Port
HR15 must be connected with a host for further operation, such as PC, POS.or any intelligent terminal with USB, RS232 or PS/2
interface.

USB
USB interface on the host

RS232
RS232 interface on the host