Installation guide

Chapter 1 Overview of Cisco Interface Cards
Cisco 2600 Series Routers
1-24
Cisco Interface Cards Installation Guide
OL-1919-12
Figure 1-10 refers to the unit numbers by the interface type chassis slot followed
by a forward slash and the unit number. For example, first Ethernet interface, is
referred to as Ethernet 0/0.
Voice Interface Numbering in Cisco 2600 Series Routers
Voice interfaces are numbered differently from WAN interfaces described in the
“Slot and Unit Numbering” section on page 1-23. Voice interfaces are numbered
as follows:
interface type chassis slot/voice module slot/voice interface
For example, slot 1, voice network module slot 0, voice interface 0, is referred to
as voice 1/0/0 (closest to the chassis interface card slots).
Interface Card Options for Cisco 2600 Series Routers
Table 1-4 lists the interface cards and their IOS release requirements. Voice
interface cards (VICs) can be used only in voice network modules (NM-1V,
NM-2V, NM-HD-1V, NM-HD-2V, or NM-HD-2VE). Restrictions on the use of
interface cards are indicated in the footnotes.
Note The earliest supported release is not necessarily the recommended release. Refer
to the applicable release notes and hardware documentation for release
information specific to your interface cards.
Table Conventions:
• Limited lifetime releases—Only the listed releases support the interface card.
• T-train releases and mainline releases—The earliest release that supports the
interface card is listed. Unless otherwise indicated, all later releases support
the interface card.