LSI SYM8953U - Manual (Page 69)

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Operational Environment A-7
A.2.2 The SCSI Interface
The SCSI interface conforms to ANSI X 3T10.11/1142.
The SCSI interface operates as 16-bit, synchronous or asynchronous,
SE or LVD, and supports SCSI-3 protocols and 8-bit and 16-bit
arbitration. The interface is made through connectors J2 and J3.
Active SE or LVD SCSI termination is provided automatically. SCSI
termination power is supplied by the board.
Connector J2 is a 68-pin HD right angle header used for internal
connections.
Connector J3 is a 68-pin HD right angle connector that protrudes through
the back panel bracket and is used for external connections.
Table A.4 and Table A.5 show the signal assignments for J2 and J3
respectively.