Stulz S-Klima C7000 - EBUS Expansion Board for RS485 Bus

BA C7000 for EC Tower | EN | 01-2019 | 1000755
10
Port 2
Port 3
3.3 EBUS expansion board for RS485 bus
Circuit board design
Pin Designation Function
1 Port 2-H
RS485 BMS bus
2 Port 2-L
3 Port 3-H
RS485 components bus
4 Port 3-L
X10 SUB-D 15 to X14 on IO controller
Jp no. Function, if open
8 EBUS port 2 activated
9 EBUS port 3 activated
Assignment - EBUS board
Technical data:
Power consumption: 11.3 VA
Operating temperature: 5 °C to 40 °C
Storage temperature: -30 °C to 60 °C
Note:
If an optional EBUS expansion card is used, jumper
8 and jumper 9 have to be removed.
If no EBUS expansion card is used, jumper 8 and
jumper 9 have to be set.
EBUS activation
Setting at the end of the bus for port
2: (Example)
Bias high
Bus termination: on
Setting in the middle of the bus for
port 3: (Example)
Bias: low
Bus termination: off
Switch for adjusting the
bias and the
bus termination