Clarification on Identifying RAK3172-8-SM-I vs RAK3172-9-SM-I

WisBlock
1

Hi RAK Team,
We have received RAK3172 modules with part numbers RAK3172-8-SM-I (SKU 305045) and RAK3172-9-SM-I (SKU 306042). Both parts look physically identical after assembly. The only visible differentiation is on the packed cover label, where the SKU code is mentioned.

In case of mixing during production or at the vendor side, it becomes very difficult for the operator to identify the correct module physically, since both appear the same (without TCXO, with IPEX antenna).

Could you please advise on:

  1. Whether there is any physical marking, laser code, or silkscreen on the module PCB that helps distinguish RAK3172-8-SM-I from RAK3172-9-SM-I?
  2. If not, is there any way (e.g., firmware AT command, frequency band readout, UID check) to confirm the SKU code once the module is powered?
  3. Any recommended best practice for handling / storage / labeling to avoid mix-ups in production?

This clarification will help us avoid wrong part usage in production and ensure correct frequency band compliance (RU864/IN865/EU868 vs US915/KR920/AS923).

Looking forward to your guidance.

2

Hi @Prasanna ,

In the LoRaWAN application perspective, you have nothing to worry because both SKUs will work on both 8xx and 9xx Mhz. These are configurable via AT commands or on your RUI3 FW. They share common hardware - No TCXO with IPEX.

The difference on these SKUs are on the certifications. For example Europe uses 8xx Mhz which requires CE/RED. While US has 9xx Mhz that needs to comply on FCC rules. That’s why sticker label are different.