Anritsu BTS/Sitemaster RS232 problem

[slurry]

I have a BTS-master which wont connect over RS232 to the Anritsu LST-software,
it's rather annoying because it's one of my most used instrument.

Is there any odd way to connect that is not mentioned in the manual? -a factory reset makes no difference.

RS232 pin 2/3 is not shorted to ground or loaded in any way

-any ideas?

[coromonadalix]

hum 

Does it require null modem cable ?  or an other type of cable dtr dts pins shorted or a combination, twisted rx / tx pins  ...  maybe your ic's are fine,  and you dont have the proper cable, or the cable is damaged   if you say its ok on other instruments,  maybe there is a bit of info missing


You could use an rs232 terminal software, short the rs232 pins on your 232 ic (the output pins who go to the buffer chip / cpu  etc ...)  and echo the commands like sending anything / characters  etc ... if the chip is ok  the commands / characters will be echoed back to the computer ... see that as a loopback test ??

I had a problem similar,  the rs232 lines where not pulled right, the dtr line was used as a reset line, since it wasn't at the good logic level, i had reset problems on my interface board

It resetted fine after unplugging the cable   I did manage to find from polland a nice usb to rs232 isolated adapter with all the rs232 lines with status leds, if i have an rs232 line pulled wrong for a project, i see their status before programming ...    model UR232ISO  from sibit.pl