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Thread: Integrated Standby Instruments System (ISIS) power source?
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Old 3rd September 2009 | 09:10
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IFixPlanes
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Joined: Apr 2004
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From: near EDDF
At the A320 Fam.: 401PP (DC ESS BUS) and/or* 703PP (DC HOT BUS).
At the A330/340 Fam.: 403PP (DC ESS BUS) and/or* 701PP (DC HOT BUS).

* : "and/or" depends on the age and the modification status of the A/C
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