Tech Support Forum - View Single Post - Convert Rs-485 port with 15 pin connector to COM1 9 pin connector

blackbox_ns · 11-19-2008, 01:29 PM

Try this pinning, if the pinout of your T3805 is correct this should work.

T3805 DB15 Serial Port
1st pin STB
2nd to 9 Data Bits signal
10 busy
11 J1
12 J2
13 GND----------------------DB9 pin 5 (signal ground)
14 TXD----------------------DB9 pin 2 (RXD)
15 RXD----------------------DB9 pin 3 (TXD)

11-19-2008, 01:29 PM	#3 (permalink)
blackbox_ns Registered User Join Date: Nov 2008 Posts: 143 OS: Xp	Re: Convert Rs-485 port with 15 pin connector to COM1 9 pin connector Try this pinning, if the pinout of your T3805 is correct this should work. T3805 DB15 Serial Port 1st pin STB 2nd to 9 Data Bits signal 10 busy 11 J1 12 J2 13 GND----------------------DB9 pin 5 (signal ground) 14 TXD----------------------DB9 pin 2 (RXD) 15 RXD----------------------DB9 pin 3 (TXD) Last edited by blackbox_ns; 11-19-2008 at 01:31 PM.