Difference between revisions of "High Availability Exchange"
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==Standby AMC-IP== | ==Standby AMC-IP== | ||
| − | The [[AlphaCom E20]] and [[AlphaCom E26]] exchanges can be equipped with a second AMC-IP card. Both AMC-IP cards are under control of the APC-card and report failure information to the APC, which for this purpose is equipped with a microcontroller. Based on that information the APC decides if and when to switchover between the 2 AMC-IP cards. This means that in the case of an AMC-IP card failure the down time of an E26 exchange is reduced to the time it takes for the standby AMC-IP card to take over rather than the time to get a new card from stock, program it and install it, which even if the card is an on-site spare, will easily take 30 minutes. | + | The [[AlphaCom E20]] and [[AlphaCom E26]] exchanges can be equipped with a second [[AMC-IP]] card. Both AMC-IP cards are under control of the [[APC|APC-card]] and report failure information to the APC, which for this purpose is equipped with a microcontroller. Based on that information the APC decides if and when to switchover between the 2 AMC-IP cards. This means that in the case of an AMC-IP card failure the down time of an E26 exchange is reduced to the time it takes for the standby AMC-IP card to take over rather than the time to get a new card from stock, program it and install it, which even if the card is an on-site spare, will easily take 30 minutes. |
==Redundant power supplies== | ==Redundant power supplies== | ||
Revision as of 12:39, 12 December 2008
Standby AMC-IP
The AlphaCom E20 and AlphaCom E26 exchanges can be equipped with a second AMC-IP card. Both AMC-IP cards are under control of the APC-card and report failure information to the APC, which for this purpose is equipped with a microcontroller. Based on that information the APC decides if and when to switchover between the 2 AMC-IP cards. This means that in the case of an AMC-IP card failure the down time of an E26 exchange is reduced to the time it takes for the standby AMC-IP card to take over rather than the time to get a new card from stock, program it and install it, which even if the card is an on-site spare, will easily take 30 minutes.
Redundant power supplies
The AlphaCom E26 always has had support for redundant power supplies. This redundancy was supported by the old 1009701000 PSU, and is now supported by the 1009703000. Note that the power supplies operate in load sharing mode which increases the reliability even further, as each PSU is only loaded far below its capability, giving a much lower stress on the compents than for which they are designed.
Ordering information
The components required for the AlphaCom High Availability exchange are available under the following numbers:
- 1009626010: High Availability exchange, dual AMC-IP with automatic switch over and 2 PSU's; additional AMC-IP filter card is included
- 1009626011: E26 High Availability extension package, AMC-IP card (including filtercard) and APC upgrade kit
Note that the redundant AMC-IP solution can also be use in an AlphaCom E20 exchange; this exchange however does not support redundant power supplies.