D70H
D70H
On/off button
(hold for 2 s to
switch off)
2 ports for Hein-
dehain sensors
RS-232 connector for
PC communication
Connector for pedal
Mini-USB connector
for power supply and
transferring the meas-
urement to a PC
The D70 has an RS-232 port, which means that it can be connected to a machine or external
system. The speed, parity and format can be adjusted by the user.
Connector pins
Equipped with a 9-pin SUB-D female connector.
Description of the RS-232 signals and pin assignments:
Communication ports
Pin
Signal
Direction
Description
1
Unused
2
RX
Input
Receive data
3
TX
Output
Transmit data
4
IN1
Input
Factory testing only, do not connect
5
Ground
-
Signal ground
6
Not used
7
IN2
Input
Factory testing only, do not connect
8 & 9
Not used
Mini-USB connector
The mini-USB connector has two functions:
1. Powering the display via the adapter. This adapter supplies a regulated constant voltage of
5V/1A.
2. Transferring measurements. If you connect the D70 to a PC, it will be detected as a keyboard
using the standard drivers for the operating system. When you transfer a measurement, the
number will be «written» to the PC as if you had typed it in on a keyboard.
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