Advanced Digital Information Corporation | FastStor 1 | |
|
|
|
1.Add the length of all external and internal SCSI cables on the bus
2.Add 80 cm (31.5 inches) for the internal cable length in the FastStor 1.
3.If the number of SCSI devices exceeds two, the maximum allowed length of an LVD SCSI bus is 12 m (39 ft).
4.For an SE SCSI bus, be very careful regarding bus length. The normal combination has an SE bus transfer speed of 160 MB/s with a maximum bus length of 3 m (9.8ft) and up to 4 SCSI devices connected. If your SE system operates with a different transfer speed or has more than 4 SCSI devices, refer to the actual SCSI standard for complete bus length restrictions.
D)Before you power on the FastStor 1 and restart the system, make sure the SCSI bus is properly terminated. If the FastStor 1 terminates the SCSI bus, ADIC recommends that you connect the terminator from the accessory kit box on the lower SCSI connector on the back plane.
To connect the SCSI bus cable:
1.On the rear of the FastStor 1, attach the SCSI cable’s device connector to the upper SCSI connector. (See Figure 11.)
2.Secure the cable with the thumbscrews on the connector.
3.Connect the other end of the SCSI cable to the appropriate SCSI adapter on your system, and then fasten it with the thumbscrews.
4.If the FastStor 1 is the last device on the SCSI bus, install a SCSI bus terminator to the free SCSI connector on the FastStor 1. Make sure the terminator is the correct type for your SCSI system.
5.It is possible to daisy chain several SCSI devices on the SCSI bus. If you do so, the terminator must be connected to the last device on the bus. Note that there are limitations to the SCSI cable length.
Figure 11. SCSI cable and SCSI terminator connection
10 | FastStor 1 Quick Installation Guide |
