Fujitsu MBA3073NC Product Manual - Page 72
External operator panel on NP model drives only, External operator panel circuit
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(4) External operator panel (NP model only) The external operator panel is installed only when required for the system. When connection is not required, leave open the following pins in the external operator panel connector of the HDD: Pins 21, 22 and pins 01 through 08 in CN2 and pins A1 through A12 in CN1. 4.3.4 External operator panel (on NP model drives only) A recommended circuit of the external operator panel is shown in Figure 4.23. Since the external operator panel is not provided as an option, this panel must be fabricated at the user site referring to the recommendation if necessary. (HDD) C N 1 S3 A1 A3 A5 A7 A10 -ID0 -ID1 -ID2 -ID3 GND S3 A8 A11 -LED +5V ID0 ID1 ID2 ID3 (LED) R Approx. 300Ω (*1) C N 2 S4 21 LED (+5V) 22 -LED (for 16-bit SCSI) (*1) For connecting the external LED to CN2. (LED) Figure 4.23 External operator panel circuit example 68 Downloaded from www.Manualslib.com manuals search engine C141-E270