Sun Microsystems Netra X4200 M2, Service Manual

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144 Netra X4200 M2 Server Service Manual • May 2007
Alarm Port
The alarm port on the alarm rear transition module uses a standard DB-15 connector.
In a telecommunications environment, use this port to connect to the central office
alarming system.
FIGURE D-6
shows the pin numbering of the alarm port, and
TABLE D-6
describes the pin signals.
Note – The alarm port relay contacts are rated for 100 V 0.2 A maximum.
FIGURE D-6
Alarm Port Pin Numbering
Serial Attached SCSI Connector
The Serial Attached SCSI (SAS) connector pins and their corresponding descriptions
are shown in the figure and table in this section.
TABLE D-6
Alarm Connector Signals
Pin Service Pin Service
1 NC 9 ALARM1_NC
2 NC 10 ALARM1_COM
3 NC 11 ALARM2_NO
4 NC 12 ALARM2_NC
5 ALARM0_NO 13 ALARM2_COM
6 ALARM0_NC 14 ALARM3_NO
7 ALARM0_COM 15 ALARM3_COM
8 ALARM1_NO CHASSIS FRAME GND
1
8
9 15
ALARM