Please note that transmit pin of one RS-232 device must connect with the receive pin of the other device. If you can connect you PC to the device to be controlled with a straight through cable, then you can use our Phoenix to DB-9 adaptor to connect the wire that will connect to the Domain 3000 to your PC to test the wire, and you can then unplug the adaptor and plug the cable into the Domain 3000. However, you will not be able to connect the Domain 3000 to the PC with that same cable unless you add a Null Modem.
Test the systems to be controlled with your PC
Connect a commercial cable directly from the system to your PC
(Do not use the pulled cable with the Phoenix connector on it at this time)
Note what type of cable is required: straight thru or crossover
Open the application that came with the system OR open Hyper Terminal on your PC
Go to Start / Programs / Accessories / Communications / Hyper terminal
Enter any name (it won’t matter) and click OK
On the “Connect To” menu, click on “Connect using” and select COM1 and click OK
Select the baud rate and other attributes for the system you are connecting to and click OK
If another application is using the COM port you will get an error, close that application and click on the “Phone” icon
Select “File” / “Properties” and the “Settings tab”, click the “ASCII Setup …” button
Check the appropriate fields as shown below, click OK
Send and receive commands from your PC to the system
Do not connect the cable to the Domain Controller until you have completed this step
Find the pin out of the cable
Find the cable by vendor or by type
Wire the cable to the system to be controlled and test it with your PC
Wire the cable according to the pin out diagram
Connect the cable to the system to be controlled
Connect the Phoenix connector to PC adaptor and the PC adaptor to your PC
Make sure that dip switch pins 1 & 2 are selected and all others are not
Run the same test over this cable as you did over the commercial cable
If it does not work, do the LEDs on the PC adaptor flash?
Trying crossing over the cable (pins 1 & 2 not selected, 3 & 4 selected)
Perform a continuity test on the cable
Remove the cable from the PC and from the system to be controlled
Apply a voltage across Transmit (Phoenix pin 5) and Gnd (Phoenix pin 1)
Measure that voltage on the system’s connector on the Receive pin
Make sure it does not appear on the Transmit pin of the system to be controlled
Apply a voltage across Receive (Phoenix pin 4) and Gnd (Phoenix pin 1)
Measure that voltage on the system’s connector on the Transmit pin
Make sure it does not appear on the Receive pin
Connect the working cable to the Domain Controller
Make sure the baud rate settings are the same on the Domain Controller as on your PC