The customer would like to get advice about hot-swap ADM3078E.
ADM3078E has thee mode (shut-down, rx, tx).
Do you have any particular recommended mode when ADM3078E face hot-swap?
Thank you for your help as always.
The ADM3078E has true fail-safe A, B inputs.
When the cable is disconnected from the A, B pins the ADM3078E RO pin will have a Logic 1/High output.
The ADM307xE family guarantees a logic high receiver output when the receiver inputs are shorted, open, or connected to a terminated transmission line with all drivers disabled.
The ADM3078E data sheet page 16 describes the hot swap feature.
The feature prevents data error during a power up sequence.
When VCC rises, an internal pull-down circuit holds DE low and /RE high.
After the initial power-up sequence, the pull-down circuit becomes transparent, resetting the hot-swap tolerable input.
Thank you very much for your response!
But my apology I misunderstood about the customer's question. It is not related with hot-swap.
(I shoud be re-write the title on this discussion...)
They would like to know our recommended mode when something (like RS-422 cable) is dis-/ connected to ADM3078E A,B pins.
At this case, do you have any particular recommended ADM3078E mode?
Thank you for your response!
I understood that there is no particular recommended mode since AD3078E have a true fail safe feature on A,B pins.
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