Endress+Hauser Liquistation CSF48 - Page 47

Liquistation CSF48 Electrical connection
Endress+Hauser 47
6.4.5 Bus termination
There are 2 ways to terminate the bus:
1. Internal termination (via DIP switch on module board)
"ON"
"OFF"
 45 DIP switch for internal termination
‣
Using a suitable tool such as a tweezer, move all four DIP switches to the "ON" position.
 The internal termination is used.
390 W
220 W
390 W
VP
DGND
B/B' A/A'
 46 Structure of internal termination
2. External termination
Leave the DIP switches on the module board in the "OFF" position (factory setting).
‣
Connect the external termination to terminals 81 and 82 on the front of module 485DP or
485MB for 5-V power supply.
 The external termination is used.