Zhone IMACS 8000, User Manual

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Reference Guide 2-5
System Installation Power Supplies and Ringing Generators
2.3.4.1 8000 Chassis
The chassis have 12 holes on each side, as shown in Figure 2-2. These holes facilitate
mounting in a 19- or 23-inch rack (48.2 or 58.4 cm). You can attach the front, middle, or rear
of this chassis to a rack, using the mounting brackets as previously shown for the front-loading
chassis with power supplies on the side. To place a two-sided chassis on a tabletop, attach the
mounting brackets to the two holes on the bottoms of the chassis sides.
Figure 2-2.Chassis Mounting Holes
Table 2-1. Minimum Chassis Clearances
2.4 Power Supplies and Ringing Generators
The power supply and ringing generators can consist of up to two power supplies, two
AC-to-DC converters, and up to two ringing generators. External -48V talk battery and
ringing generators may be used instead of the internal units. Use the following guidelines to
determine your power supply and ringing generator requirements.
Clearance Front Rear Top Bottom
Inches 10 10 3/4 2
Centimeters 25 25 2 5
Top
Bottom
B
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F
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