Can I Daisy Chain a TSN-Enabled and Non-TSN-Enabled Chassis?

Updated Nov 7, 2023

Reported In


  • cDAQ-9188
  • cDAQ-9185
  • cDAQ-9189
  • cDAQ-9184
  • cDAQ-9181

Issue Details

The cDAQ 9189/9185 has the ability to daisy chain multiple chassis together. Can I include a 9188 or other Ethernet chassis in this chain?


Any Ethernet cDAQ can be included in a daisy chain of chassis. Many of the non-TSN Ethernet chassis (the 9188 included), only have a single Ethernet port. So while they can connect to a computer through a chain, there can only be a single chassis of this type and it must be the last chassis in the chain.

Additionally, daisy chaining is primarily used to add TSN time synchronization functionality, and while these non-TSN chassis can be included in the chain, this does not give them access to TSN functionality. If a non-TSN-enabled device is placed between two TSN-enabled devices, it will break the chain and not allow them to synchronize via Time Sensitive Networks. If you would like TSN-enabled devices to synchronize, link the non-TSN-enabled chassis on the end of the chain.