Fujitsu MAH3091MC - Enterprise 9.1 GB Hard Drive Product/Maintenance Manual page 69

(3) SG terminal
The IDD is not provided with an SG terminal (fasten tab) for DC grounding. Therefore, when
connecting SG and FG in the system, use the +5 VDC RETURN (ground) inside the power supply
connector as the SG on the power supply side.
(4) Connector for external operator panel
•
Connector for 16-bit SCSI external operator panel
CN1 provides connector for the external operator panel other than the SCSI bus as shown in
Figure 4.19. Also, a connector for the external operator panel are provided on the IDD as
shown in Figure 4.20. This allows connection of an external LED on the front panel, and an
SCSI ID setting switch. For the recommended circuit of the external operator panel, see
Subsection 4.3.4.
Figure 4.19 External operator panel connector (CN1)
4 - 16
Pin
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
C141-E103-02EN
Signal
–ID0
–Fault LED
–ID1
(Reserved)
–ID2
(Reserved)
–ID3
–LED
OPEN
GND
+5 V
–WTP