The SamBus aka ‘The Card Cage’ was a multi-port expansion device to allow 4 expansion devices to attach to the Coupé.
All devices connected will use up some of the available power, and some will be more power-hungry than others. All future peripherals produced will carry a “Loading Factor” number which will be located near the device’s serial number and prefixed by the letters “LF”. This will allow you to estimate how much power a device is likely to consume. If the “Loading Factor” total is above 200 units for all the devices connected, an external 5v power supply will need to be plugged in to the SAMBUS via the external power connector.
The following peripherals were designed before the SAMBUS was in production, and you should assume the following “Loading Factor” units for them.
|External Drive Interface||15 LF units.|
|SPI||15 LF units.|
|Comms Interface||20 LF units.|
|Voicebox||15 LF units.|
|Sam Drive||50 LF units each|
PDF Manual Scan at www.samcoupe-pro-dos.co.uk
If you have one of these still then the battery will have leaked by now but if you are lucky you will be able to snip it out, clean with white vinegar to neutrilise the alkali and then again with Isopropal alcohol and fit a new one. Replacements available from most parts shops.