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Configuration, RRC 1258 / Re: Remote Rig + ERC + Com1?
« on: 2013-05-24, 01:37:58 »
Hi Stu,
I don't know what is exacltly going on but my setup is same on both RRCs. If you soldered the wires on the back of PCB then it's confusing to tell which one is TXD or RXD. However switching TXD and RXD doesn't hurts, so you can try either way and if one works that's fine.
One more thing I want to mention about the term TXD and RXD is that it differs from device to device. TXD can mean either 'output of data' or 'The port should be connected to TXD of the opposite device'. It's quite confusing. I would have called them as input and output. Simply, the input of one device should go to the output of the other device. In that manner, all the pin functions you may need are as follows;
Computer
pin2 : input
pin3 : output
pin5 : GND
Control RRC-COM1
pin2 : output
pin3 : input
pin5 : GND
Control RRC-COM2
pin2 : output
pin3 : input
pin5 : GND
Radio RRC-COM1
pin2 : output
pin3 : input
pin5 : GND
Radio RRC-COM2
pin2 : input
pin3 : output
pin5 : GND
ERC-M
tip : input
ring : output
GND : GND
Hope this idea doesn't give you another headache. ^ ^
73, Joe.
I don't know what is exacltly going on but my setup is same on both RRCs. If you soldered the wires on the back of PCB then it's confusing to tell which one is TXD or RXD. However switching TXD and RXD doesn't hurts, so you can try either way and if one works that's fine.
One more thing I want to mention about the term TXD and RXD is that it differs from device to device. TXD can mean either 'output of data' or 'The port should be connected to TXD of the opposite device'. It's quite confusing. I would have called them as input and output. Simply, the input of one device should go to the output of the other device. In that manner, all the pin functions you may need are as follows;
Computer
pin2 : input
pin3 : output
pin5 : GND
Control RRC-COM1
pin2 : output
pin3 : input
pin5 : GND
Control RRC-COM2
pin2 : output
pin3 : input
pin5 : GND
Radio RRC-COM1
pin2 : output
pin3 : input
pin5 : GND
Radio RRC-COM2
pin2 : input
pin3 : output
pin5 : GND
ERC-M
tip : input
ring : output
GND : GND
Hope this idea doesn't give you another headache. ^ ^
73, Joe.