Dell MD1280 manual EMM features and indicators, Back-panel features and indicators

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Figure 2. Back-panel features and indicators

Table 2. Back-panel features and indicators

Item	Control/Feature

1	Optional cable retention positions (4)
2	I/O enclosure management modules (2)
3	Fan modules (5)
	NOTE: Each fan module includes two fans. The Storage Enclosure
	Management Software lists 10 fans 0–9. The physical enclosure enumerates
	the enclosures 1–5. Therefore, in the Storage Enclosure Management
	Software, fans 0–1 are related to fan module 0, fans 2–3 are related to fan
	module 1, fans 4–5 related to fan module 4, fans 6–7 are related to fan
	module 5, and fans 8–9 are related to fan module 5.
4	PSUs (2)
5	Optional cable retention positions (2)
6	Power switches (2)

I/O EMM features and indicators

Dell Storage MD1280 enclosure includes two I/O Enclosure Management Modules (EMMs).

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Contents Dell Storage MD1280 Service Guide Page Contents Technical specifications Contacting Dell About the Dell Storage MD1280 Service Guide Front-panel features and indicatorsDell Storage MD1280 overview Dell Storage MD1280 hardwareFront-panel features and indicators Back-panel features and indicators EMM features and indicators Back-panel features and indicatorsFan module features and indicators O EMM features and indicatorsPSU features and indicators Fan module features and indicatorsDdic indicator Ddic indicatorDdic indicator Safety precautions Electrical safety precautionsGeneral safety precautions Replacing Dell Storage MD1280 componentsPre-replacement tasks Replacing PSUsRemoving a PSU Replacing a fan module Replacing fan modulesIdentifying the failed fan module Replacing hard drives Numbering the hard driveIdentifying the failed hard drive Replacing hard drivesOpening a Ddic Ddic Replacing I/O EMM modules Closing a drive drawerIdentifying the failed EMM Replacing an EMMReplacing chassis Replacing rack railsPost-replacement tasks Turning on the EMMs and enclosureTroubleshooting Dell Storage MD1280 components Troubleshooting fan modulesTroubleshooting PSUs Troubleshooting DDICsTroubleshooting I/O EMMs Technical specifications PSU Physical Depth front mounting bracket to rear surface Page Page Contacting Dell