1-34
Hardware Installation Guide for the Cisco 4000 Series  Integrated Services Router
OL-32185-02
Chapter 1      Overview of Cisco 4000 Series ISRs
  Hardware Features of Cisco 4000 Series ISRs
• Cisco UCS E-Series Server Modules, page 1-34
• Solid State Drives, page 1-35
Internal Slots 
• Packet Voice Digital Signal Processor Modules, page 1-35
• Memory, page 1-36
• System Flash, page 1-35
Warning
Only trained and qualified personnel should be allowed to install, replace, or service 
this equipment. 
Statement 1030
Warning
This equipment must be installed and maintained by service personnel as defined by AS/NZS 
3260. Incorrectly connecting this equipment to a general-purpose outlet could be hazardous. The 
telecommunications lines must be disconnected 1) before unplugging the main power connector 
or 2) while the housing is open, or both. 
Statement 1043 
See the Overview of Cisco Network Modules and Service Modules for Cisco Access Routers 
document for general information and single- and double-wide slot numbering.
See the “Install and Remove NIMs and SM-Xs on Cisco 4000 Series ISRs” section on page 6-29 for 
instructions that describe how to install SM-Xs and NIMs in the router.
See the Overview of Cisco Interface Cards for Cisco Access Routers for general interface card 
information.
See the Installing Cisco Interface Cards in Cisco Access Routers document, for instructions that 
describe how to install legacy interface cards in the router.
Note See the router product page at cisco.com for a list of supported network modules and interface cards.
Network Interface Modules and Service Modules
To install NIMs and SM-Xs on the router chassis, see the “Install and Remove NIMs and SM-Xs on 
Cisco 4000 Series ISRs” section on page 6-29.
Cisco UCS E-Series Server Modules
Cisco UCS E-Series Servers (E-Series Servers) are the next generation of Cisco UCS Express servers. 
E-Series Servers are a family of size-, weight-, and power-efficient blade servers that are housed within 
the Generation 2 Cisco Integrated Services Routers (ISR G2) and Cisco 4000 Series Integrated Services 
Router. These servers provide a general-purpose compute platform for branch-office applications 
deployed either as bare-metal on operating systems, such as Microsoft Windows or Linux; or as virtual 
machines on hypervisors, such as VMware vSphere Hypervisor™, Microsoft Hyper-V, or Citrix 
XenServer.