Microtek Converter - Manual (Page 54)

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7-4. When the green power LED does not come on
Check the following points:
1. Make sure the SCSI device is powered on properly.
2. Turn off the SCSI device and check the FR1SX is attached firmly. And turn
on the device again.
If the LED does not come on even if above checking was made, refer to the
user’s manual of the SCSI device. SCSI specifications require Term-Power
output capability as an optional, but some SCSI devices such as iomega Zip
drive may not be implemented this capability. If your SCSI device does not
have this Term-Power output capability, you have to connect an OPTIONAL
AC adapter(sold separately) as Fig.7 shows. Regarding optional items, refer to
Chapter 8.
Optional AC adapter
AC adapter jack
Fig. 7