Avaya (109352-E, Uživatelský manuál Strana 69

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Installing the BCN and BCN RLC
109352-E Rev. A 3-7
Space Requirements
Make sure the installation site is large enough for the BCN and provides sufficient
air plenum (a volume of free space surrounding the hardware platform for heat
exhaust). Table 3-4 lists the dimensions of the BCN.
Table 3-5 lists the number of British thermal units (Btus) generated by the BCN
and its air plenum requirements.
Table 3-6 shows the total space needed (dimensions plus air plenum requirements)
for the BCN. You must ensure that the rear of the rack has at least 20 inches of
additional clearance available for inserting and removing the power modules.
Table 3-4. BCN Dimensions
Height Depth Width
24.4 in. (62.0 cm) 22.9 in. (58.2 cm) 19 in. (48.3 cm)
Table 3-5. BCN Thermal Output and Air Plenum Requirements
Thermal Output
(Maximum Btu/hr.)
Location of Air
Plenum
Required
Air Plenum
Recommended
Air Plenum
7700 Front of BCN 2.5 in. (6.4 cm) 4 in. (10.2 cm)
Rear of BCN 2.5 in. (6.4 cm) 4 in. (10.2 cm)
Top of BCN 3.5 in. (9 cm) 5.25 in. (13.3 cm)
Right of BCN 2 in. (5.1 cm) 3 in. (7.6 cm)
Table 3-6. Total Space Required for BCN
Height Depth Width
27.9 in. (70.9 cm) 27.9 in. (70.9 cm) 21 in. (53.3 cm)
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