The fan modules are numbered left to right, for example, FAN1, FAN2, FAN3, FAN4, FAN5, and FAN6.
See Remove and Replace the Fan Module, on page 58 for the procedure for removing and replacing the fan
module.
The following figure shows the location of the fan LED.
Figure 15: Fan LED
Two-color LED1
The fan module has one two-color LED, which is located on the upper left corner of the fan.
• Amber—Fan failure.
• Green—Fan running normally. It may take up to one minute for the LED status to turn green after power
is on.
Supported SFP/SFP+ and QSFP Transceivers
The SFP/SFP+ transceivers are bidirectional devices with a transmitter and receiver in the same physical
package. It is a hot-swappable optical or electrical (copper) interface that plugs into the SFP/SFP+ ports on
the fixed ports and the network module ports, and provides Ethernet connectivity.
Use appropriate ESD procedures when inserting the transceiver. Avoid touching the contacts at the rear, and
keep the contacts and ports free of dust and dirt. Keep unused transceivers in the ESD packing that they were
shipped in. The following figure shows a sample SFP transceiver.
Warning
Cisco Firepower 4112, 4115, 4125, and 4145 Hardware Installation Guide
25
Overview
Supported SFP/SFP+ and QSFP Transceivers
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