56 Netra 1290 Server Installation Guide • May 2006
SCSI Implementation
For PCI+ IB_SSC assemblies the embedded SCSI subsystem is a SCSI Ultra-320
(UltraSCSI) low-voltage differential parallel interface
■16-bit SCSI bus
■320-MBps data transfer rate
Maximum cable length support is 33 ft. (10 meters).
Alarms Port
The alarms service port is a male DB-15 (FIGUREA-3). TABLE A-3 lists the pinout
information.
FIGUREA-3 DB-15 (Male) Alarms Service Port Connector
TABLEA-2 68-Pin SCSI Connector Pinout (continued)
PinNo. SignalName Type PinNo. Signal Name Type Pin No. SignalName Type
18 Termpwr POWER 41 –DB(1) I/O 64 –I/O I/O
19 Reserved NA 42 –DB(2) I/O 65 –DB(8) I/O
20 Ground GND 43 –DB(3) I/O 66 –DB(9) I/O
21 +ATN I/O 44 –DB(4) I/O 67 –DB(10) I/O
22 Ground GND 45 –DB(5) I/O 68 –DB(11) I/O
23 +BSY I/O 46 –DB(6) I/O
81
915 ALARMS