Chapter 10 Technical appendix
48
Device description HE 5697 MFC
Version 1.4
10.2
Communication cards
10.2.1
2 × Ethernet, 2 × RS-485
10.2.1.1 Ethernet interfaces
This communication card is equipped with 2 Ethernet ports 10/100BaseT (compliant with IEEE
802.3). Each Ethernet port supports:
10/100 MBit/s
Auto negotiation
Auto MDIX
Display of link / data status via LED:
Link = LED lights up continuously
Data = LED flashes
10.2.1.2 RS-485 interfaces
This communication card is equipped with 2 RS-485 ports.
The RS-485 ports are specified as follows:
10.2.1.3 General technical data
10.2.1.4 Ambient conditions
See chapter 3.3 "Technical data"
.
10.2.1.5 Electrical connections
Ethernet ports XC1 and XC2:
RJ-45
Recommended connection cable: Better than Cat5
Galvanic isolation:
corresponding to category b,
Data rate:
max. 500 kBaud
RS-485 driver:
max. 32 unit loads
Supply voltage:
takes place via the system bus
Power consumption:
I < 0.5 A @ 5 V
I < 0.1 A @ 3.3 V
