Cisco 4000 Series User Manual

5-8
Hardware Installation Guide for Cisco 4000 Series Integrated Services Routers
OL-32185-02
Chapter 5 Install and Upgrade Internal Modules and FRUs
Locate Internal and External Slots
Locate NEBS Module
Note We recommend that you change the air filter every 3 months. However, examine the air filter once a
month (or more often in dusty environments) and replace it if it appears to be excessively dirty or
damaged. To comply with Telecordia GR-63-Core standard air filter requirements for NEBS
deployment, the air filter must be replaced, not cleaned.
Figure 5-3 shows the NEBS module on Cisco 4461 ISR.
Figure 5-3 NEBS Module Locations in Cisco 4461 ISR
Locate Internal and External Slots for Modules on Cisco 4451 ISR
Figure 5-4 shows the locations of internal modules on Cisco 4451 ISR motherboard. Internal modules
include DIMMs, PVDM4, and PoE daughter card. Figure 5-27 shows the location of the available slots
that includes the Integrated Services Card (ISC) slot.
1 SM blank slot for NEBS 2 Power supply unit with reverse flow
3 PoE blank slot for NEBS. PoE is not allowed
for NEBS.
4 NEBS fan tray with reverse flow
5 Air filter for NEBS

Cisco 4000 Series Specifications

General

Category	Network Router
Product Type	Router
Form Factor	Rack-mountable
Connectivity Technology	Wired
Product Family	Cisco 4000 Series
Operating System	Cisco IOS XE
Dimensions	Varies by model
Weight	Varies by model
Model	Cisco 4000 Series
WAN Ports	Varies by model
LAN Ports	Varies by model
Storage	Varies by model
Redundancy	Varies by model
Security Features	Varies by model
Network Management	Varies by model
Data Link Protocol	Ethernet, Fast Ethernet, Gigabit Ethernet
Network/Transport Protocol	TCP/IP, UDP
Features	Varies by model
Interfaces	Varies by model
Models	Varies
Network Interfaces	Varies by model
Power Supply	Varies by model
Virtualization Support	Yes