PortServer TS 16

I have a problem using this device to communicate with a simple modem. I use straight ETH cable with 76000697 (female) and 76000701 (male) rs232->rj45 converter. When plugged to some device (using 76000697), there is no problem with communication. But when I use 76000701 for modem, HT receive rubbish after AT command.
I think rs232->rj45 converters are good, because when I am making a loop using TS -> ETH cable -> 76000697 -> 76000701 -> ETH cable -> TS, I can communicate from one HT to the other.

Can sb help me :slight_smile:

Please refer to the link