Quectel RM520N series - VID and PID

IoT Modules 5G Module
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Hi,

For my product implementation, I tried to identify the RM520N chip using its VID and PID by collecting data from anonymous users.

However, I encountered three questions:

  1. Multiple different values have been reported for the same RM520N module:

    VID (Vendor ID) PID (Product ID)
    1eac 1004
    1eac 1007
    2c7c 0800
    2c7c 0801

    What are the differences between these?

  2. According to the Quectel Product Brochure V8.2, the RM520N has three variants:

    RM520N-CM, RM520N-GL, and RM520N-EU.

    Do they share the same VID and PID?
    If not, could you provide the VID and PID for each variant?

  3. Are these variants technically the same chip with the same interfaces (exposing the same MBIM port), or are there differences?

Thanks!

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For standard firmware it is 2C7C 0801.
For 2C7C 0800, it should be Rx50xQ, such as RM500Q RM505Q RM502Q RG500Q, all those are based on Qualcomm X55 Chip.
If you are using the PCIe interface, you might see the 1eac, if it is not standard firmware such as customerized for Lenovo, you might also see the VID not with 0x2C7C.

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3

Quectel module based on Qualcomm X62 shares with the USB VID&PID 0x2C7C&0x0801.

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Many thanks, @Bean.Wang-Q

So for RM520N, the VID and PID table is as follows:

VID (Vendor ID) PID (Product ID) Desc
1eac 1004 RM520N PCIe variant
1eac 1007 RM520N PCIe variant
2c7c 0801 RM520N standard firmware / X62 based Quectel modules
others others Non-standard firmwares (e.g. Lenovo-customerised)

I understand that regional variants (-CN, -GL, -EU) do not have different VIDs or PIDs.

The last question here: Can I control them through the same MBIM port?

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Yes. If the modem works in PCIe, it support QMI and MBIM.

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