How to distinguish each PCA9616 connected in parallel?

[kenneth_seo]

Hi All,

In the attached file, how does the Analog Board (Master) distinguish between TD_ID_Board #1 (Slave#1) and TD_ID_Board #2 (Slave#2)?
In general, in the case of I2C, each Slave's address can be used to distinguish each Slave, but can PCA9616 also distinguish each Slave with an address like general I2C?
And should I set each TD_ID_Board to HW or SW? If so, can you tell me how?

Thank you in advance.

[guoweisun]

You can try to use one pair of PCA9616 then at the end of termination use I2C Multiplexer