Help needed with an serial RS-R232 connector

[NicolasB]

Hi,

we've got a MR2002 motion detector from Syscom at work, and we need to update the OpenVPN config files on the device.

Usally we access the device via a cellular module with a SIM card via OpenVPN. But I guess that's not possible if we want to Update the config files (I'm still waiting for a reply from our supplier)

So the only other way to communicate with the device is via a direct link with a serial RS-R232 connector.

We've got a USB adapter, but we can't get it to work. The connection always fails.

There is one option that enables the user to communicate via a command line, maybe we could use this to test if the adapter even works at all?

But I could not find in the manual what commands are possible.


I've got a manual in german, maybe you can translate it in your PDF program.

 

[daver2]

As this is your first post, welcome to VCFED.

It looks like you can use HyperTerm from a Windows PC using a serial COM port.

I would recommend using a 'real' serial port PC rather than a pesky USB serial thing (certainly to start with)...

What cable and connectors have you got between the hardware unit and the PC?

Dave

 

[NicolasB]

We don't have a PC with serial ports, maybe we have to send it to the manufacturer then...

This is how how all of the connectors look.

We know the Baudrate (at least it says "Baudrate: 115200" on the Display of the device)

 

[daver2]

The baudrate is only one of the serial port parameters that you require.

You require to know the baudrate, the number of data bits, whether parity is enabled or not, if parity is enabled - is it odd or even parity that is required, and (lastly) the number of stop bits.

Then you have handshaking, software (XON/XOFF) or hardware?

All these things have to be configured correctly for a serial link to operate. They are equally important whether a physical serial port is available on the PC or a USB port.

There is a bit of a plethora of connectors in your photographs...

I recognise the connector on the equipment as the round one.

I assume there is a 9-pin D connector on the end of the cable containing the round connector that plugs into the equipment?

I assume the USB connector (that is the flat rectangular one in the first photograph) has a corresponding 9 pin D connector on the other end of it? Which is (I think) what you are showing me in photograph 2.

My suggestion is to contact the manufacturer in the first instance...

Dave

 

[MontyL]

And along the lines of translating the manual:

Amazing the amount of free tools that are available on the webs.

 

[NicolasB]

The baudrate is only one of the serial port parameters that you require.

You require to know the baudrate, the number of data bits, whether parity is enabled or not, if parity is enabled - is it odd or even parity that is required, and (lastly) the number of stop bits.

Then you have handshaking, software (XON/XOFF) or hardware?

All these things have to be configured correctly for a serial link to operate. They are equally important whether a physical serial port is available on the PC or a USB port.

There is a bit of a plethora of connectors in your photographs...

I recognise the connector on the equipment as the round one.

I assume there is a 9-pin D connector on the end of the cable containing the round connector that plugs into the equipment?

I assume the USB connector (that is the flat rectangular one in the first photograph) has a corresponding 9 pin D connector on the other end of it? Which is (I think) what you are showing me in photograph 2.

My suggestion is to contact the manufacturer in the first instance...

Dave

Yes, that's how the connectors are related.

You are right, only the manufacturer can know all the things that are required. We asked our supplier, they will probably ask the manufacturer.