Cisco Laser Link Proteus Scaleable Node 安装指南
1-6
General Information
78-4028521-01 Rev B
Laser Link III Mainframe Description,
Continued
Fan Assembly
The fan assembly in the Laser Link III Mainframe is controlled by the processor.
Power and signals are routed from jumper cable J6 on the fan assembly to J19 on the
power distribution board. The fan assembly is accessible through a removable panel
on top of the assembly. However, a minimum of 1 RU is needed for this access. See
Chapter 2, Installation, for guidance on selecting a location to install the mainframe.
As shown in the following diagram, as a module is plugged into a particular slot in
As shown in the following diagram, as a module is plugged into a particular slot in
the mainframe, a corresponding fan will turn on.
Individual fans are monitored for rotation. If rotation is not detected, a fan alarm is
generated causing the ALARM LED to flash red.