Communicating With A Pc (Personal Computer) - Serial Communications - Husky MP2500 Manual

For example, to suit a typical modem, configure the MP2500 as follows:
Option Setting
Baud rate: *
Protocol: *
Length: 8
Parity: *
Stop bits: *
LF: No
Null: 0
RTS: True
DTR: Yes
CTS: Yes
DSR: Yes
DCD: Yes
Echo: No
Txt/o: 30
Rxt/o: 30
Serig: off
Configure the modem interface speed, parity, data and stop bits as the
MP2500. Configure the modem line speed to suit the remote modem.
13.7.4 Communicating with a PC (Personal
Computer) - serial communications
13.7.4.1 Cable (25-way)
Some PCs have a 25-way D-type connector fitted, usually female but
sometimes male. If a 25-way connector is fitted, you will require a cable
wired as shown below.
Chapter 13: Introduction to Communications
Comments
To suit the modem.
To suit the remote system.
Binary data.
To suit the modem.
To suit the modem.
Adding LFs would corrupt binary data.
Adding NULLs would corrupt binary data.
Handshake output when the MP2500 wants to
start transmission. (Modem replies on CTS.)
May be needed to turn on the modem.
Handshake input from the modem, when the
modem asks to start transmitting (by raising
RTS).
Input to indicate that the modem is ready to
operate.
Input to indicate that received data is valid.
There's no point viewing binary data!
To help detect any problem between the
MP2500 and the modem.
To help detect any problem between the
MP2500 and the modem.
Filtering bytes would corrupt binary data.
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