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Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
September 2005
Chapter 15 Shelf Hardware Reference
15.12.1 Fan Speed and Power Requirements
Figure 15-40
Position of the ONS 15454 ETSI Fan-Tray Assembly
15.12.1 Fan Speed and Power Requirements
Fan speed is controlled by the TCC2/TCC2P card’s temperature sensors. The sensors measure the input
air temperature at the fan-tray assembly. Fan speed options are low, medium, and high. If the
TCC2/TCC2P card fails, the fans automatically shift to high speed. The temperature measured by the
TCC2/TCC2P sensors appears on the LCD screen.
lists power requirements for the fan-tray assembly.
61236
FAN
FAIL
CRIT
MAJ
MIN
Fan tray
assembly
LCD
Table 15-12
Fan Tray Assembly Power Requirements
Fan Tray Assembly
Watts
Amps
BTU/Hr
FTA2
53
1.21
198
FTA3 -T
86.4
1.8
295
Содержание ONS 15454 DWDM
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