Installation
SmartRadar FlexLine
Installation Guide
Part No.: 4417.760_Rev06
34
For short distances up to 20 devices can be connected. This
number will be specific to every situation.
4.11.3.3 Host Communication EIA 485
4.11.3.3.1 Topology
Up to 31 gauges can be connected to one EIA 485 Host
communication. The gauges are connected in parallel, as
described in figure 4.9.
FIG. 4-9 EIA 485 topology
Cable specifications
Type
Twisted pair, shielded
Maximum length
1200 meter
NOTE:
If necessary the ‘common’ of the EIA 485 may be
connected to the ground GND_ISO.
Label
Parameters
11. 485A
1k2/2k4/4k8/9k6/19k2/38k4 bps
Selection by software
12. 485B
13. GND_ISO
EIA 485 Field bus
13. GND_ISO
12. 485B
11. 485A
13. GND_ISO
12. 485B
11. 485A
13. GND_ISO
12. 485B
11. 485A