LSI SYM22801 - Manual (Page 22)

2-8 Installing the SYM22801 Host Adapter
3 meters (total internal and external cable lengths), even
with fewer than four devices. The SYM22801
autotermination scheme is designed to operate properly
when plugging the end connector of the SCSI cables into
the SYM22801 SCSI connectors.
If you connect the SYM22801 in the middle of the bus, you
will incur improper termination since the switches are not
assigned on that bus correctly. Refer to the Channel
Switches section for more information.
2.2.4 Making Internal SCSI Bus Connections
This section provides step-by-step instructions about making internal
SCSI bus connections:
Step 1. If you are connecting an internal Wide SCSI device, plug the
68-pin connector on one end of a wide internal SCSI ribbon
cable into the connector J2, or J6 (see Figure 2.4). Make
certain to match pin-1 on both connectors.