It does nothing with usb to serial port COM4

Fernando Ruza — Tue, 05 Feb 2019 11:19:41 -0000

Hi!, I have an adapter usb to serial with the port COM4 and plugged a serial printer to it. I have setuped tcp2com with this port but nothing is recieved, or at least the printer does nothing:

C:\PUB\tcp2com-1.0.0-bin>.\tcp2com.exe --test tcp/9100 com4
Test mode - Press Ctrl+C to stop program
bridge.c: StartTcpSocket() succeeded
bridge.c: GetOverlappedResult() succeeded
bridge.c: Accepted connection from 10.36.196.152
bridge.c: Closed connection from 10.36.196.152 (Ctrl-C)

The Server is listening at port 9100 so that everything it receives is transfered to COM4 to the printer. I have setuped de serial port with the registry values as it says in the documentation to reflect: 19200 Bauds, Parity: N, Byte size: 8 and Stop bits: 1 because the printer is setuped with these values. I send a file job with netcat from linux that the printer knows to print but it does nothing:

root@xen-pozo:~# nmap -sT hpcinf52.hguv.local -p9100

Starting Nmap 6.47 ( http://nmap.org ) at 2019-02-05 12:00 CET
Nmap scan report for hpcinf52.hguv.local (10.36.195.95)
Host is up (0.0046s latency).
rDNS record for 10.36.195.95: HPCINF52.local.gaigu.sescam.jclm.es
PORT     STATE SERVICE
9100/tcp open  jetdirect

Nmap done: 1 IP address (1 host up) scanned in 1.22 seconds

root@xen-pozo:~# cat /root/d4793392-001 | nc -w 1 hpcinf52.hguv.local 9100
+TCP2COM v1.0.0

Does tcp2com software runs with usb to serial ports?. Any clue will be apreciated.

Regards, Fernando.

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It does nothing with usb to serial port COM4