5
AMM-1525M/1510M/525M Installation Guide
Part Number: 510659-00, Rev. A
Print Spec Number: 492931-00
Current Date: 9/19/94
ECN Date: 9/27/94
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To connect internal SCSI devices, follow these steps:
1
Attach the connector at one end of the 50-pin
SCSI ribbon cable to the AMM-1525M/1510M
SCSI connector. Make sure to align pin 1 of the
cable with pin 1 of the connectors on the host
adapter and internal SCSI device.
Note:
On ribbon cables, pin 1 is usually
marked with a contrasting color on one edge
of the cable; a small arrow, a delta symbol (
▲
),
or a “1” usually marks pin 1 on the SCSI
connector.
2
Attach the connector at the other end of the cable
to the connector on the first SCSI device; maintain
pin-1 orientation.
3
To connect additional internal SCSI devices, you
will need to obtain a 50-pin SCSI ribbon cable
with enough connectors to accommodate all of
your internal SCSI devices.
Terminating SCSI Devices
The devices at the ends of the SCSI bus must have a
set of resistors called terminators either installed or
enabled. All other SCSI devices installed between the
ends of the SCSI bus must have their terminators
either removed or disabled.
Since the AMM-1525M/1510M is always at one end
of the SCSI bus, SCSI termination on the adapter is
always enabled and cannot be changed.
To enable or disable termination on your SCSI
device, refer to your SCSI device documentation.
Setting SCSI IDs
Verify that each SCSI device (including the host
adapter) located on the SCSI bus is set to a unique
SCSI ID (0-7).
The default value for your host adapter is SCSI ID 7.
Normally, the host adapter should always be set to
SCSI ID 7. To change the host adapter SCSI ID, refer