User manual
Technical data
12
7. Technical data
Specification Value Unit
Power supply 5 V
Power consumption <700 mW
Operating temperature -30 .. +85
a
b
°C
a
The buzzer is limited to -20 .. +70 °C but unused.
b
SD card socket is limited to -25 .. +85 °C.
Table7.1.Electrical charachteristics
7.1. Modbus port
MBTCP system uses this port as configured in "/etc/mbtcp.conf" section [RS485].
Pin Description
1 unused
2 unused
a
3 unused
b
4 RS485+
5 GND
6 RS485-
7 unused
8 unused
9 +5V
c
a
Can be RXD of RS232 "/dev/ttyS3".
b
Can be TXD of RS232 "/dev/ttyS3".
c
This pin can power connected gpio.net modules.
Table7.2.RS485 (DSUB female connector X13)
7.2. Debug console
This port runs a debug/emergency shell at 115200 baud 8N1.
Pin Description
1 unused
2 RXD
3 TXD
4 unused
5 GND
6 unused
7 unused
8 unused
9 unused
Table7.3.RS232 (DSUB male connector X6)