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LtAP (RBLtAP-2HnD) using dual PCI-e LTE modems

Tue Oct 22, 2019 1:06 pm

Please make clear for me about LtAP (RBLtAP-2HnD).
Do I can to use dual LTE PCI-e modems simultaneously?
Official information very poor.
I found only this:
MiniPCIe slot #1 Top slot supports PCIe and USB 2.0 cards, but is shared with the USB 2.0 type A
port (can use either USB port or miniPCIe slot at the same time)
MiniPCIe slot #2 Bottom slot supports only USB (2.0 and 3.0) miniPCIe modems (no PCIe support)

And I can't understand how I can use two LTE modems simultaneously. For ex: What modules I can insert into bottom PCI-e slot?

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Re: LtAP (RBLtAP-2HnD) using dual PCI-e LTE modems

Thu Feb 13, 2020 10:03 am

I'll try to use 2 PCIe LTE modem (r11-lte and r11-lte6).
But the system sees only one modem PCIe, i upgrade the RBLtAP-2HnD but not see the module.
the problem is on 3 sims see only 2 sim slot.
Does anyone have some solution?
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Re: LtAP (RBLtAP-2HnD) using dual PCI-e LTE modems

Mon Feb 17, 2020 4:32 pm

Thank support
This is support mail:


Please check/enable what USB 2.0 line are routed to mini-PCIe slot 2(upper) with console command:

/system routerboard usb set type=mini-PCIe
If that does not help, please:

enable LTE logging with the console command:
/system logging add topic=lte
reboot device
wait few minutes, create Supout.rif file from your device and send it to us.
This article explains how to make a supout.rif file: ... utput_File

Best regards,

Artis M.
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Re: LtAP (RBLtAP-2HnD) using dual PCI-e LTE modems

Tue Feb 18, 2020 12:40 am

Other works a default situation is:
  • USB port works but not work slot 1 with his SIM1
  • LTE works in slot 2 always but you must select what sim slot you use 2/3.
and you can resign from USB port to enable Slot 1 for LTE purpose with SIM 1 and if you place modem with USB3.0 interface then you should mask/isolate to ensure correct initialization of USB3.0 pin's. Check the documentation and many posts at forum.

Graf with notification and I hope explain situation clear.
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