Microtest "COMPAS"

On 7.3.16 06:46, Ed Prochak wrote:
> On Sunday, March 6, 2016 at 8:09:47 PM UTC-5, jaymar...@gmail.com wrote:
>> Hi sir,you said you're using it mostly to monitor rs232 communication? may i ask if i can use it to trace if a machine or computer has an output, via rs232 when connecting on this device? or can you give me some instruction on how to use the function rs232?
>> Thank you sir, appreciate any help :)
>
> rs232 is not a function.
>
> it is the electrical definition for a serial interface standard.
> Google it
>    ed
>

The OP is probably looking for an asynchronous serial line analyzer.

-- 

-TV

On 03/06/16 22:46, Ed Prochak wrote:
> On Sunday, March 6, 2016 at 8:09:47 PM UTC-5, jaymar...@gmail.com wrote:
>> Hi sir,you said you're using it mostly to monitor rs232 communication? may i ask if i can use it to trace if a machine or computer has an output, via rs232 when connecting on this device? or can you give me some instruction on how to use the function rs232?
>> Thank you sir, appreciate any help :)
>
> rs232 is not a function.
>
> it is the electrical definition for a serial interface standard.
> Google it

Pedantic, and wrong. RS-232, or EIA-232 as it is now called, defines 
physical and electrical properties of an interface which can be used to 
carry both asynchronous and synchronous serial data streams. Everything 
one needs to understand the physical-layer and recover the bits on the 
wire is specified in the standard.

What is not specified in the standard is the protocol which travels 
across the serial link, as it doesn't care. Unlike Ethernet, which has a 
defined packet format, the largest unit of transfer on the EIA-232 
asynchronous interface is one byte.

So, when the OP asked about "rs232", everyone knew what he/she was 
talking about, and it is common usage to call it that. It is arguably 
clearer than "serial port", as SPI, I2C, USB, PCIe, and numerous other 
interfaces could also be classified as "serial ports".

Google it.

--- Zach