Thales' cellular IoT products business is now part of Telit Cinterion, find out more.

You are here

PLS8-E Disable hardware flow control | Telit Cinterion IoT Developer Community

June 27, 2022 - 12:55am, 538 views


Is it possible to disable hardware flow control on the PLS8-E? According to the AT command set, AT\Q parameter can only be set to 3 which is RTS/CTS hardware flow control. I would like to use the modem with a device that only has the following lines available on the RS232 connection: RXD, TXD, GND, CTS and DTR. If I connect only RXD, TXD and GND, the device can't communicate with the PLS8-E. If there is no possibility to disable flow control, do you know if I can bypass it somehow? E.g. Connecting the RTS line from the PLS8-E to some voltage?

Right now if I connect pin CTS from the device to pin RTS from the PLS8-E, the communication between them works and I don't understand why.