Cisco CISCO7201 Instrukcja Użytkownika Pobierz pdf (Strona 12)

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PA-A6 ATM Port Adapter Installation and Configuration

OL-2672-05

Chapter 1 Overview

Port Adapter Slot Locations on the Supported Platforms

Using Statistics to Estimate the Power Budget

Statistical models more accurately determine the power budget than the worst-case method. Determining

the link loss with statistical methods requires accurate knowledge of variations in the data link

components. Statistical power budget analysis is beyond the scope of this document. For further

information, refer to UNI Forum specifications, ITU-T standards, and your equipment specifications.

References on Determining Attenuation and Power Budget

The following publications contain information on determining attenuation and power budget:

• T1E1.2/92-020R2 ANSI, the Draft American National Standard for Telecommunications entitled

Broadband ISDN Customer Installation Interfaces: Physical Layer Specification

• Power Margin Analysis, AT&T Technical Note, TN89-004LWP, May 1989

Port Adapter Slot Locations on the Supported Platforms

This section discusses port adapter slot locations on the supported platforms. The illustrations that

follow summarize slot location conventions on each platform:

• Cisco 7200 Series Routers and Cisco 7200 VXR Routers Slot Numbering, page 1-12

• Cisco 7201 Router Slot Numbering, page 1-14

• Cisco 7301 Router Slot Numbering, page 1-14

• Cisco 7304 PCI Port Adapter Carrier Card Slot Numbering, page 1-15

• Cisco 7401ASR Router Slot Numbering, page 1-16

• Cisco 7500 Series Routers with VIP Slot Numbering, page 1-16

• Cisco 7600 Series Routers with FlexWAN Slot Numbering, page 1-20

Cisco 7200 Series Routers and Cisco 7200 VXR Routers Slot Numbering

Cisco 7202 routers have two port adapter slots. The slots are numbered from left to right, slot 1 and

slot 2. You can place the port adapters in either of the slots (slot 1 or slot 2). The Cisco 7202 router is

not shown.

Cisco 7204 routers and Cisco 7204VXR routers have four slots for port adapters, and one slot for an

input/output (I/O) controller. The slots are numbered from the lower left to the upper right, beginning

with slot 1 and continuing through slot 4. You can place the port adapters in any of the slots (slot 1

through slot 4). Slot 0 is always reserved for the I/O controller. Figure 1-11 shows the slot numbering

on a Cisco 7204VXR router. The Cisco 7204 router is not shown.

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