Concept 993015

Model 3000 / Access 4000 Memory configurations

A significant feature of the 3000/Access 4000 products is the ability to adapt the memory to suit the requirements of the particular system installation.

Memory Size
Definitions: The Memory installed in Model 3000 / Access 4000 Control Modules has traditionally been specified in Bytes. Some manufacturers choose to specify memory capacity in Bits, thereby making the memory size sound much larger. (There are 8 Bits in a Byte of memory) This can create confusion for the specifier or installer. In order to allow memory capacity to be compared in different products, memory sizes for the 3000/4000 are now being defined in both formats. The original "Byte" format will still be provided first, followed by the "Bit" format in brackets. Initially, the Installer must choose the appropriate Memory Size to suit the size of the installation.

The 3000 is fitted with 32k (256kBit) Memory in the factory, but can be upgraded to 128k (1MBit) or 512k (4MBit) if required.
The Access 4000 is fitted with 128k (1MBit) in the factory but can be upgraded to 512k (4MBit) when necessary.

Memory Configuration
Secondly, the Installer has the option to choose an appropriate Memory Configuration so that the available memory is utilized in the most effective way for each particular system. In most cases the "Standard" configuration offers a practical mix of modules and items for the majority of installations. The other configurations cater for systems that have a greater emphasis on particular applications, while maintaining the concept of fully integrated systems.