26 | Barracuda 18LP FC Installation Guide, Rev. A | ||
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| 26 | Ground |
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27* | +Port B_in | Diff. PECL input pair | |
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28* |
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29 | Ground |
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30* | +Port A_out | Diff. PECL output pair | |
31* |
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32 | Ground |
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33* | +Port B_out | Diff. PECL output pair | |
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34* |
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35 | Ground |
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36 | SEL_2 | TTL input/output | |
37 | SEL_1 | TTL input/output | |
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38 | SEL_0 | TTL input/output | |
39 | Reserved NC |
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40 | 5 Volts charge |
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*Short pins in mating backpanel connector.
[1]This pin may be connected to external logic to detect the presence of the drive. The drive connects this pin to the common ground.
