Fan-Tray Assembly - Cisco ONS 15454 DWDM Installation And Operation Manual

15.12.1 Fan Speed and Power Requirements
Figure 15-40
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.
Table 15-12
Table 15-12
Fan Tray Assembly
FTA2
FTA3 -T
Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
15-42
Position of the ONS 15454 ETSI Fan-Tray Assembly
F A N
F A IL
C R
IT
M A
J
M IN
LCD Fan tray
assembly
lists power requirements for the fan-tray assembly.
Fan Tray Assembly Power Requirements
Chapter 15
Watts Amps
53 1.21
86.4 1.8
Shelf Hardware Reference
BTU/Hr
198
295
September 2005