Electrical/Environmental Requirements And Characteristics; Cable Lengthdnetwork Requirements; Grounding Requirements - Toshiba Strata DK 280 Installation Manual

Digital business telephone system
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and Characteristics
The electrical/environmental requirements and
characteristics for the Strata DK280 are provided in
Table 2-1.
Cable Lengths/Network
2.3
Requirements
Table 2-2 lists station loop requirements. Table 6 in
the General Description shows the system network
requirements. The base and optional expansion
cabinets must be placed within the allowed maximum
o f
distance
each other as designated by Table 2-2.
Requirements
2.4
Grounding
The system requires a solid earth ground for proper
operation. System AC power cords already contain a
for
conductor
the "third wire ground" provided by the
commercial outlet. But in addition, an insulated
conductor must be connected between the frame
ground on any cabinet power supply and a
pipe or the building ground. Chapter 3-Cabinet
Installation provides complete ground wiring
installation instructions, including ground for
secondary protectors (see Figure 3-1 9).
2-4
cold
water
January
1996

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