| 2. Setting
up your hardware |
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| 2.0
Overview |
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| In this
section you will set up your
hardware so that it will be able to communicate with the host computer.
There are sections on the cables required and setup of your modem (if used). |
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| PC-PLOT-IV
communicates with your host computer or modem through a device in your
IBM PC called an asynchronous communication adapter. The actual device
may be an IBM asynchronous adapter board, a portion of a multi-function
card, or an internally mounted modem such as the Hayes Smartmodem (TM)
1200B. |
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| You may
also need a cable to connect your computer to your modem or local host
computer. Cables are often a source of considerable grief when setting
up a system because there are so many varieties of a "standard RS-232C
cable". |
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| If you
are using an internal modem (installed inside your computer) you can completely
ignore the following section on cables. |
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| 2.1
Modem setup |
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| The following
setups are valid for Hayes modems. The switch settings for other modems
will most certainly be different but with the information contained in
this section, you will be able to set them up also. |
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| Hayes
300, 1200 and 2400 modems are mounted in an external box which is connected
by a cable to your computer (RS-232 cable) and by a telephone cord to your
phone system. They have red lights on the front panel which can be used
as diagnostic aids to setting up your system. |
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| The Hayes
1200B mounts inside your computer and is connected only to your phone system
by a cable. There are no lights on the 1200B. |
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Haves
300 and_ 1200 setup |
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Switch
settings for use with PC-PLOT-IV and most other communications programs.
The switches are located behind the plastic front bezel. |
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Haves
1200B internal modem |
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Position
marked with a * is normal setting |
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Multi-line phone |
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U. S. Robotics Auto-dial
212A |
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RNG OFF
Test mode |
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SHI ON/OFF
Carrier detect not used by PC-PLOT-IV |
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BAL ON/OFF
Set for 1 or 2 line phones |
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DTR OFF
Allows PC-PLOT-IV to hang up modem
Note 1 |
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| The setting for COM1
and COM2 can be deceiving. If there is only one serial device in your computer,
it will be defined to be COMI by the ROM BIOS setup routine in your computer
independent of the setting of the switches or jumpers on the board. It
is important however, that if you have only one serial port (modem or serial
board) it should be set for COM1 so that the interrupts are correctly selected. |
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| If you have two serial
devices in your computer, they MUST be set for different channel numbers.
Usually, the serial board in an XT or AT is set for COM1 at the factory
so you should set your modem to COM2 if there is another serial device
in your system. |
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| Refer to the HELP Section
(17) if you have problems in getting your configuration to work. Also refer
to Appendix B which defines the RS-232-C cables required for PC-PLOT-IV. |
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| PC-PLOT-IV
Chapter 2 Setting up Hardware |