OpenWrt Forum Archive

Topic: WRT54GL UMTS/GPRS Mod

The content of this topic has been archived on 28 Feb 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Post #1
Penguin
27 Jan 2009, 10:07

Hello everybody!

The WRT54GL has two internal serial ports and there are UMTS/GPRS modems available with a serial interface. Now I had the idea to put one of these in my WRT54GL to have a backup internet connection in case the main connection does not work. The serial ports of the WRT54GL do not seem to support hardware flow control, but the UMTS/GPRS modems I have seen, do. I do not know if the modems require that or support both hardware and software flow control, though.

Did anyone try this before? Any ideas or comments about it?

Post #2
opensys
13 Feb 2009, 02:35

try to get the data sheet of the device, or try to find what ic is responsible to controller the data in and data out.
If the device only need the tx and rx there a possibility.
some device use usb to serial ttl conversions so is you have a old UMTS/GPRS modem device you may have lucky.

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