Table
CB7000 Switching Card | Single 90A | Single 90A | |
3 | X 7436 ATM Interface Cards |
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ATM Data Center with |
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CB7000HD Switching Card | Single 90A | Single 90A | |
1 | X 7600F ATM Interface Card |
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3*8 port ATM Interface Cards |
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CB7000HD Switching Card | Single 90A | Single 90A | |
1 | X 7600T ATM Interface Card |
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3*8 port ATM Interface Cards |
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Other applications |
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CB7000 Switch Card | Single 90A | Single 90A | |
4 | X 7262 Ethernet/ATM Interface Card |
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Providing Redundancy for Various Power Loads
This section describes when redundant switch cards and redundant power supplies can be used in a CoreBuilder switch.
In order to determine whether a redundant switch card and/or an redundant power supply can be used in a CoreBuilder switch, the total power consumption of all installed cards must be examined. According to the total power consumption, there are three possibilities, as the following examples illustrate:
Installation I: The total power consumption of a single switching card (that is, no redundant card installed) and all interface cards exceeds 90A. In this case, a Dual 90A supply is required so that the second power supply cannot be redundant. A redundant switch card can be installed. This “heavy load” installation is illustrated by the first example installation in Table
Installation II: The total power consumption of two switching cards (i.e., redundant card installed) and all interface cards exceeds 90A but without the second switching card the consumption is less than 90A. In this case, either a redundant switch card or a redundant power supply can be installed, but not both. This “medium load” installation is illustrated by the second example installation in Table
Installation III: The total power consumption of two switching cards and all interface cards does not exceed 90A. In this case, both a redundant switch card and a redundant power supply can be installed.
