Host Communication Eia 485; Topology - Honeywell Enraf SmartRadar FlexLine Installation Manual

Installation
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

Cable specifications
Type
Maximum length
NOTE:
If necessary the 'common' of the EIA 485 may be
connected to the ground GND_ISO.
Label
11. 485A
12. 485B
13. GND_ISO

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.
13. GND_ISO
12. 485B
11. 485A
FIG. 4-9 EIA 485 topology
Installation Guide
34
Twisted pair, shielded
1200 meter
Parameters
1k2/2k4/4k8/9k6/19k2/38k4 bps
Selection by software
13. GND_ISO
12. 485B
11. 485A
13. GND_ISO
12. 485B
11. 485A
Part No.: 4417.760_Rev06
SmartRadar FlexLine
EIA 485 Field bus