Cisco APP-LMM Установка и модернизация - Страница 12

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Installation Prerequisites

Calculating the Chassis Power Budget

In an AGS+ chassis shipped on or after October 1, 1991, the total power drawn by all installed cards

must not exceed 300 watts (W) per chassis. In chassis shipped before this date, the total power

cannot exceed 260W. (The earlier chassis contained a 5-amp [A] circuit breaker, rather than the 7.5A

circuit used in the later chassis conﬁguration.) Table 3 lists the power requirements for each card

available for the AGS+.

Table 3

Card

CSC/3

CSC/4

CSC-ENVM

CSC-MC+

CSC-MCI

CSC-SCI

CSC-R16M

CSC-1R or CSC-2R

CSC-CCTL

CSC-CCTL2

CSC-(C2)FCI

CSC-FCIT

CSC-(C2)MEC(2, 4, or 6)

CSC-(C2)HSCI

CSC-C2CTR with 1 applique (2 ports)

CSC-C2CTR with 2 appliques (4 ports)

1. Add 4W for each external Ethernet transceiver.

Before installing new cards, check the power requirements of the existing system and the new

card(s) to avoid exceeding the power budget. Calculate the power requirements of an existing

system by adding the values for each card in the chassis; the sum is the power requirement.

Determine the available power budget, subtract that sum from 300W (260W for chassis shipped

before 10/1/91); the result is the power budget available for new cards.

12 Installing and Upgrading the CSC-C2FCIT FDDI Card and Appliques

Interface Card Power Requirements

Power

(Watts)