Services Performance Engine" Section; Removable And Interchangeable Modules And Cards - Cisco WS-C2950-24 Installation Manual

Hardware Features

Removable and Interchangeable Modules and Cards

Table 1-5 on page 1-19
router to provide specific capabilities. Services Performance Engines (SPEs), Service Modules (SMs),
and Enhanced High-Speed WAN Interface Cards (EHWICs) fit into external slots and can be removed
or replaced without opening the chassis.
Internal Services Modules (ISMs), expansion DRAM memory modules and next-generation Packet
Voice Data Modules (PVDM3s) plug into internal connectors inside the chassis. These modules can be
removed and installed only by opening the chassis on the Cisco 3900 series, or sliding the motherboard
out of the Cisco 3900 series.
External Slots
•
•
•
Internal Slots
•
•
•
Because of physical differences with the new slots, legacy network modules and legacy Service Modules
require an adapter for installation.
Only trained and qualified personnel should be allowed to install, replace, or service this equipment.
Warning
Statement 1030
This equipment must be installed and maintained by service personnel as defined by AS/NZS 3260.
Warning
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 router product page at Cisco.com for a list of supported network modules and interface cards for
Note
Cisco 2900 series and Cisco 3900 series ISRs.
Cisco 2900 Series and 3900 Series Hardware Installation Guide
1-18
summarizes the type of removable modules and cards that can be installed in the
Services Performance Engine, page 1-20
Service Modules, page 1-20
Enhanced High-Speed WAN Interface Cards, page 1-20
Integrated Service Modules, page 1-21
Packet Voice Data Modules, page 1-21
Memory, page 1-21
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 Installing Cisco Network Modules in Cisco Access Routers
describe how to install SMs, legacy network modules, and legacy Service Modules in the router.
See the Overview of Cisco Interface Cards for Cisco Access Routers
information.
See the Installing Cisco Interface Cards in Cisco Access Routers
describe how to install EHWICs and legacy interface cards in the router.
Chapter 1 Overview of the Routers
document for instructions that
for general interface card
document, for instructions that
OL-18712-02