Technical information

Serial Solutions Newcom Parameters
serial device needs a true signal.
Type 3 RS485 Send only.
This is a half duplex, transmit only handshake.
The PC transmits whenever it wishes, it cannot
receive any data.
The CTS, DSR and DCD inputs are ignored. The
RTS output line is set true just in case the external
serial device needs a true signal.
Type 4 3 Wire Handshake.
Really no handshake at all since the PC transmits
irrespective of the handshake lines.
The 3 wires are TxD, RxD and Ground, no other
lines are required. Thus the CTS, DSR and DCD
inputs are ignored. The RTS and DTR output lines
are set true just in case the external serial device
needs a true signal.
Single port examples:-
/H1,2 Set COM1, handshake 2
/H,1 Set handshake 1 for all ports
The /H switches are processed from left to right, so for example
/H,2 /H1,0 /H2,1
would set COM3 to COM16 to handshake type 2,
COM1 to type 0 and COM2 to type 1.
When a range of ports is given, every port port in the range is
set to the specified handshake value.
Range of port examples:-
/H7-16,4 sets up handshake type 4 =no handshake for COM7
to COM16.
/H3-5,2 sets up handshake type 2 CTS/RTS for port COM3,
COM 4 and COM5.
Page 26 Chapter 2