Cisco 4451-X User Manual

6-35
Hardware Installation Guide for the Cisco 4451-X Integrated Services Router
OL-27644-01
Chapter 6 Installing and Upgrading Internal Modules and FRUs
Replacing a Fan Tray
Note If hot-swapping the fan tray, it is recommended to complete the operation within two minutes to ensure
the router remains within operating temperature.
Step 1 Read the “Safety Warnings” section on page 6-2 section and disconnect the power supply before you
perform any module replacement.
Step 2 Pry open the fan tray screw covers on the four captive fan tray screws.
Step 3 Completely loosen the four captive fan tray screws.
Step 4 Pull the fan tray out.
Step 5 Insert the replacement fan tray and tighten the four captive screws.
Step 6 Snap the screw covers in place.
Figure 6-26 Cisco ISR 4451-X Fan Tray Replacement
1.
Fan Tray
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1

Cisco 4451-X Specifications

General

Aggregate Throughput	2 Gbps
Total Onboard WAN or LAN 10/100/1000 Ports	4
RJ-45-based Ports	4
SFP-based Ports	4
Enhanced Service Module (SM-X) Slots	2
NIM (Network Interface Module) Slots	3
Onboard ISC Slot	1
Memory (DRAM) Default	4 GB
Memory (DRAM) Maximum	16 GB
Flash Memory	8 GB
Rack Height	2 RU
Product Type	Router
Form Factor	Rack-mountable
Connectivity Technology	Wired
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Product Series	Cisco 4000 Series
Model	4451-X
Network/Transport Protocol	IPsec
Remote Management Protocol	SNMP
Features	Firewall protection, VPN support, Quality of Service (QoS), IPv6 support
Interfaces	4 x 10/100/1000 Ethernet ports, 4 x SFP ports
Power	AC 100-240 V (50/60 Hz)
Memory	4 GB
Operating Temperature	0 to 40 °C
Storage Temperature	-40 to 70 °C
Humidity	5% to 95% non-condensing