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Project Description
ACOM Director is a tool to allow computer control of the ACOM 2000A amateur radio (HAM Radio) amplifier both locally and over the internet.

Version 0.7.1 now includes integration with Logger32 to allow the ACOM 2000A to track the frequency of your radio.


System Requirements

You will require a Windows XP/Vista/7 either 32-bit or 64-bit with the Microsoft.NET 3.5 SP1 Framework installed


How do I connect a computer to my ACOM2000A?

There are two ways of connecting your computer to the ACOM2000A HF amplifier


Method 1 - Basic Null Modem Cable

You will need to connect a com port on your computer to the RS232 port on the rear of the ACOM2000A using a basic null modem cable. The wiring for the null modem cable should be as follows


Pin 1 - No Connection

Pin 2 - Pin 3

Pin 3 - Pin 2

Pin 4 - No Connection

Pin 5 - Pin 5

Pin 6 - No Connection

Pin 7 - No Connection

Pin 8 - No Connection

Pin 9 - No Connection


It is important that you do not use a "Full" Null Modem cable with all its pin connections made. This is because the ACOM2000A's RS232 port does not appear to be a real RS232 port and it utilises the other pins for ACOM's own purposes. These appear to be undocumented however there have been reports that useage of a "Full" Null modem cable can cause errors to appear on the RCU (With "Microprocessor conflict" being the most common) or could even cause damage to the computer's COM port due to excessive voltage on the other lines.


Please note that when using this method, you will not be able to power on the ACOM2000A using ACOM Director.


Method 2 - Through a remote power on adaptor

ACOM themselves provide a remote power on adaptor and there are a number of homebrew solutions available on the internet. All of these solutions essentially operate in the same manner, using the RTS & DTR lines of the COM port to switch pin 5 of the RCU connector in order to turn on the amplifier.


You will typically need a "Full" Null Modem cable if you are using one of these devices, however some designs will have the cross over of Pin 2 & Pin 3 built into the adaptor, in which case a regular RS232 cable will be required.


Further details of the project can be found on my website below

M0YOM - ACOM Director

Last edited Oct 26, 2014 at 2:45 PM by JamesThresher, version 6