To enable data transmission, perimeter and PC are connected with a cable. This is a special cable. You can produce this cable yourself or let it be produced for you.
Because the Octopus 500EZ perimeter has a 25 pin male connector, the cable should have 25 pin connectors, too. The following pins are connected:
Perimeter's side (male connector) -> PC's side (female connector)
Pin 1 -> Pin 1
Pin 2 -> Pin 2
Pin 3 -> Pin 3
Pin 7 -> Pin 7
Additionally, the following pins have to be connected on the PC-side connector
Pin 4 <-> Pin 5
Pin 6 <-> Pin 20
Warning: Do not combine 25 pin and 9 pin connectors on that cable. The pin setting is very different and can cause error. Use manufactured 25 to 9 pin adapters.
The cable is plugged into the interface on the left side of the Octopus 500Z.
The PC has male connectors with 9 or 25 pins. These connectors are called serial interfaces (COM or RS232 interface). Most PC have 2 connectors labeled COM 1 or COM 2. The cable from the perimeter is plugged into a free interface. If the connector has 9 pins, use an adapter. Please note the number of the interface (No.1 or No.2, seldomly No.3 or No. 4).
Attention! Using 25 pin connectors, you must ensure that it is not a SCSI interface. These connectors may have the same dimensions, but are electrically belonging to a different system. Plugging the perimeter into a SCSI interface may damage your computer !
When the cable connection is set, continue with the next step.