|PXML No. 48
The OCS 300 is a Stored Program Controlled (SPC) PABX employing digital switching and transmission techniques. They are based on a modular construction of a maximum of 7 shelves, mounted one above the other (each shelf is 27cm high, 100cm wide & 50cm deep). The main memory is UV EPROM and Lithium battery backed RAM.
The operators console (if provided) consists of a special telephone (modified Kirk set
with keys in calculator order) with light emitting diodes (LED) display and additional
Control Keys. The maximum capacity (352 ports) is 279 extensions, 3 operator consoles and
40 trunks (exchange lines, Inter PBX and DDI lines).
Last revised: September 25, 2021