P26 Instruction Manual
13
3.4 Front view
USB (optional)
C a b l e g l a n d s:
Signal Relay Power supply
Pressure ports:
+ -
RS-232:
Port designation
PIN
Description
RXD
3
receive
TXD
2
send
GND
5
earth
USB:
Port designation
PIN
Description
Power
1
power supply via USB port of
the PC
D- bidirectional
2
USB data, negative polarity
D+ bidirectional
3
USB data, positive polarity
ID
4
not used
Ground
5
GND = USB signal earth
Case Ground
shield
shielding via PC case
INFORMATION!
The greatest possible accuracy is achieved at room temperature (20°C).