15
III.8 Installation on an RS232/RS422 ASCII network
For an ASCII network, there are two possible choices: RS232 and RS422.
For RS232, all the DIP switches are down.
For RS422, all the DIP switches are up.
Connect the cable as shown in the diagram below.
Nota : Do not forget to select F into the prog/alternate menu in order to validate and
display datas received from the card.
Nota : When several probes are installed, the priority becomes as follow: HF probe then
wired temperature probe and wired temperature/humidity probe.
III.9 Installation of the temperature/humidity probe
The probe must be installed indoor and away from possible sources of electrical
interferences
Fix the probe with its support in a place that is not under sun exposure. Avoid
building outside walls, power sources, metallic structures and windy places
T+
T-
R+
R-
Ground
Ground
TX
RX
2
3
5