The SX50 is based on a compact modular design which allows easy system expansion, fault finding and card replacement. The SX50 is a digital electronic system, using stored program control and advanced digital architecture.
The SX50 has a very wide range of features and can accommodate up to 160 extensions, 32 Exchange Lines, 24 Private Circuits, and up to 32 SUPERSET 4 telephones, depending on system configuration.
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