Exploring the ST-310
S
ystem Components

 
ST-310 Board
The heart of the ST-310 is a firmware-based board. This board runs all the routines required for the switch control and the supported featuresm and it also assumes many functions normally supported by the SmarTrunk II controller, such as data base maintenance, subscriber validation and call record accounting.
   

Switch Rack

The ST-310 system components are mounted in a standard 19" rack panel with twelve slots to accommodate the switching components. Additional rack panels may be added to the system as required.
   

Power Supply

Each rack panel includes a power supply that provides the required system voltages and supervises the overall system performance. A redundant 1+1 power supply is available for special applications

   
ST-422 Switch Board
All system switching and interface functions are performed by the ST-422 Switch Board. The ST-422 contains a micro-controller, an analog matrix switching structure, plus a highly versatile analog input/output with adjustable levels for each incoming or outgoing path. The ST-422 also has an RS-232 data port for digital interconnection with any external device, plus a powerful auxiliary port for future applications. Each ST-422 can be configured to manage a channel or a telco line.