The Strata DK40i is a compact, double cabinet (base plus expansion) wall mount design, which provides many of the features offered by much larger systems.
Provides capacity of 4 CO lines, 8 digital stations and 4 single line stations in the base cabinet. With an expansion cabinet it has the maximum capacity of 12 CO lines and 28 stations.
The base cabinet includes external page interface, MOH/BGM interface, power failure transfer (1 line to 1 station), and miscellaneous relay control.
Mfr. Part #: DKSUBI40A
Toshiba Base Key Service Unit