STARPLUS Starplus DHS-L, Technical Manual, Page: 23 / 294

DHS- L Gener al D esc riptio n 2-5
Chapter 2 - Description a nd Installation
Key Service Unit
The KSU is encased in metal with a removable front cover. The KSU dimensions are:
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Width: 21.6 in.
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Height: 18.1 in.
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Depth: 15 in.
Two large slots located on the back of the KSU are designed for wall mounting via a wall
mount bracket. There are two screw slots located on the bottom, back of the cabinet also
for aiding in wall mounting.
The cabinet was designed with convenient servicing in mind. The front cover of the
cabinet can easily be removed using the key provided to unlock the securing latch
mechanism. Once removed, all serviceable components are easily accessed (Refer to
Figure 2-1 ). This includes the backplane, cards, card slots, station and trunk connections,
ground connections, battery connections, power supply and fuses.
Figure 2-1: DHS-L KSU (cover removed)
The KSU contains all of the circuitry for system operation. The system’s architecture is
based on the universal slot concept, which allows a great deal of flexibility when
planning the system configuration.