Elettronica Santerno SINUS K, User Manual

Page: 172 / 191

INSTALLATION
SINUS K
INSTRUCTIONS
172/ 191
13.7.1. E
NVIRONMENTAL
R
EQUIREMENTS
Operating temperatures: 0 to + 50 °C ambient temperature (for higher temperatures, please contact
Elettronica Santerno)
Relative humidity: 5 to 95% (non-condensing)
Max. operating altitude 4000 (a.s.l.)
13.7.2. E
LECTRICAL
F
EATURES
CONNECTION:
When board ES822 is fitted, RS485 connector automatically disables; 9-pole D connectors (male D connectors
for RS485, or female D connectors for RS232-DTE located on board ES822) activate depending on the position
of J1.
Contacts of 9-pole, male D connector CN3 (RS485):
PIN FUNCTION
1 - 3 (TX/RX A) Differential input/output A (bidirectional) according to RS485standard. Positive polarity with
respect to pins 2 – 4 for one MARK.
2 - 4 (TX/RX B) Differential input/output B (bidirectional) according to RS485 standard. Negative polarity
with respect to pins 1 – 3 for one MARK.
5 (GND) control board zero volt.
6-7-8 Not connected.
9 +5 V, max 100mA for power supply of optional, external RS485/RS232 converter.
Contacts of 9-pole, female D connector CN2 (RS232-DCE):
PIN FUNCTION
1-9 Not
connected
2 (TX A) Output according to RS232 standard
3 (RX A) Input according to RS232 standard
5 (GND) zero volt
4-6 Connected together for DTR-DSR loopback
7-8 Connected together for RTS-CTS loopback