Amiga-PC null modem cable???
defau...@domain.com
EasyTransfer 2.0. I've attached a null modem cable to the serial ports
of either machine (25-pin on Amiga, 9-pin on PC). The machines are
unable to connect.
I noticed in the instructions for EasyTransfer that I need to
connect certain serial pins from the Amiga to certain pins on the PC.
Is my cable perhaps not connecting the right pins together? And what is
the difference between a 3-pin serial connection, and a 7-pin
connection?
L. Hein
Gary Beeton
defau...@domain.com wrote:
> I am attempting to transfer some Amiga files to my PC, using
> EasyTransfer 2.0. I've attached a null modem cable to the serial
ports
> of either machine (25-pin on Amiga, 9-pin on PC). The machines are
> unable to connect.
> I noticed in the instructions for EasyTransfer that I need to
> connect certain serial pins from the Amiga to certain pins on the PC.
> Is my cable perhaps not connecting the right pins together?
Should be easy to check the cable using a multimeter.
> And what is
> the difference between a 3-pin serial connection, and a 7-pin
> connection?
A 3 pin connection uses only transmit, receive, and ground signals. It
relies on the communications software to imbed XON/XOFF codes in the
data stream to control the transfer (handshaking). A 7 pin uses
dedicated hardware signals to control handshaking.
--
Gary Beeton
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Richard Harker
defau...@domain.com wrote:
> I am attempting to transfer some Amiga files to my PC, using
> EasyTransfer 2.0. I've attached a null modem cable to the serial ports
> of either machine (25-pin on Amiga, 9-pin on PC). The machines are
> unable to connect.
> I noticed in the instructions for EasyTransfer that I need to
> connect certain serial pins from the Amiga to certain pins on the PC.
> Is my cable perhaps not connecting the right pins together? And what is
> the difference between a 3-pin serial connection, and a 7-pin
> connection?
>
> L. Hein
>
I've got no idea about your cable, but I too decided to link my Pc and Amiga
together. I searched the net for the wiring diagram for a null modem cable.
I've included below the wiring description. I tried it this morning, and it
worked fine using ANSI terminal programs, so should work with the Easy
Transfer program. hope it helps.
Cheers, Rich.
9 Pin PC | 25 pin Amiga
----------------------------+---------------------------------------
(description) (pin) | (pin) (description)
----------------------------+---------------------------------------
Recieve Data 2 | 2 Transmit Data
|
Transmit Data 3 | 3 Recieve data
|
Data Terminal Ready 4 | 6+8 Data Set Ready + Carrier Detect
|
System Ground 5 | 7 System Ground
|
Data Set Ready + 6+1 | 20 Data Terminal Ready
Carrier Detect |
|
Request To Send 7 | 5 Clear To Send
|
Clear To Send 8 | 4 Request To Send
|
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Ben
> I am attempting to transfer some Amiga files to my PC, using
> EasyTransfer 2.0. I've attached a null modem cable to the serial ports
> of either machine (25-pin on Amiga, 9-pin on PC). The machines are
> unable to connect.
> I noticed in the instructions for EasyTransfer that I need to
> connect certain serial pins from the Amiga to certain pins on the PC.
> Is my cable perhaps not connecting the right pins together? And what is
> the difference between a 3-pin serial connection, and a 7-pin
> connection?
>
> L. Hein
will explain and has the software for both Ami and PC.
--
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Be