hAP ax lite LTE6 and powersupply

Hardware MikroTik hardware general
1

I travel a lot in work and because of this, the lite lte6 was perfect for me. Even better being powered from USB-C. However, I can’t get any power supply other then the official to work. I carry around a 3x100w usb-c charger that I use for laptop, phone, and the last port was reserved for the Mikrotik. However, it does not power on.

Anyone got it working with anything else then the official psu?

2

It is a known issue.

The Ax lite (LTE6 or not) uses a USB-C connector AND 5V BUT it is not a USB-C compliant device.

It does NOT negotiate with a USB-C power supply the voltage (which is OK, as it needs 5V) nor the amperage (there is a special provision in USB-C specs to allow 3A on 5V passively, otherwise the current is limited to either 900 mA or 1.5A, anyway not enough to power an Ax Lite as the original power supply is a 2.4A one).

You need a USB-A (with adequate amperage) power supply and a USB-A to USB-C cable or:

  1. add a couple resistors to the AX Lite USB-C socket
    or
  2. create a male-female USB-C adapter withe the female connector with the two 5.1 kOhm resistors
    or
  3. create a male-female USB-C adapter using a “USB-C decoy” board - be warned that some of these boards do not have a 5 V mode but only 9V+ ones, so make sure you get one with the 5V(3A) mode.

See here for more details:
http://forum.mikrotik.com/t/hap-ax-lite/164010/1
http://forum.mikrotik.com/t/hap-ax-lite/164010/1
http://forum.mikrotik.com/t/hap-ax-lite-usb-power/172612/1

3

Thanks for taking your time and explaining it.

As far as I can tell by the images. The 5.1k ohm is pulldown resisors, right? It looks like you soldered them to ground.
If so, I have something to do tonight. :slight_smile:

4

No, I didn’t solder them (user gwynbleidd reported doing that).

Yes, they are pull down resistors, details on the circuit are on the github page for the mod (which is not suitable as-is for the Hex Lite because the connector pins are spaced differently):
https://github.com/ide/usb-c-to-c-power-mod
They connect the two CC lines to ground.