R
Richard
- Jan 1, 1970
- 0
I have a 75176 RS485 Transceiver chip here. Looking at the application
notes, it seems pretty straight forward to hook up, however I'm wondering.
Should I add a Jumper and a termination 120 ohm Resistor Between A and B?
Should I install any pull ups or Pull downs on the 485 data signal lines?
Does A pull down and B pulls Up?
Just wanting to do this 1 time. I will be using it strickly in half duplex
(For ModBus Mode).
Thanks for any pointers.
Richard
notes, it seems pretty straight forward to hook up, however I'm wondering.
Should I add a Jumper and a termination 120 ohm Resistor Between A and B?
Should I install any pull ups or Pull downs on the 485 data signal lines?
Does A pull down and B pulls Up?
Just wanting to do this 1 time. I will be using it strickly in half duplex
(For ModBus Mode).
Thanks for any pointers.
Richard