Specifications
FX II Hardware Introduction 
GCA39-824 Rev 2, Issue 4/02  Page 4  Printed in the USA 
FXCPU-2 board comes with built-in Com ports and contains 3 different sets of memory that 
are necessary for the operation, programming, and functionality of the communication 
system.  
•  The board contains: 
*  2 serial ports: (Programmable to 19,200 bps) These ports are non-dedicated; compatible 
with serial printers and OAI applications (e.g., Wide Open Office), and can be used for direct 
link programming. 
*  Operational Memory: Holds Flash, Scratch, and NOV RAM.  
Flash: Used for system initialization, storing current feature sets, and establishing slot- 
size capabilities. The Flash memory is retained by the super capacitors installed on the 
FXCPU boards. The capacitors can maintain system programming for 65 hours. 
Scratch: Workhorse memory for the board—RAM used for general telephony activities 
(e.g., speed dialing, transferring, and call forwarding). 
NOV (Nov-Volatile) RAM: It is used for SMDA storage (its standard use), and to 
increase the system speed dial capacity. 
NOV memory may need to be expanded to support an additional amount of SMDA 
storage. 
FXSRV-EX Services Board 
Description 
•  The FXSRV-EX supports the FXCPU-EX board or the FXCPU-2 Rev. P and later. Use the 
FXCPU-2 for applications requiring additional processing capabilities, i.e. Networking Hub 
or additional call records. The FXCPU-EX board is mounted to the FXSRV-EX. 
•  It has a 256K timeswitch as opposed to the 512K timeswitch found on the FXSRV-2 board. 
The timeswitch is used to make all station-to-station and line-to-line voice connections in the 
system. 
•  The board includes: 
*  1 DTMF receiver 
*  4 Programmable dry-contact relays 
*  1 six-pin modular connector: For two Music-on hold options and one Paging device 










