3-7
Safety Information and Technical Specifi cations
3-6 SCA-M942 Front Jumpers and Pin Defi nitions
JP24
JP21
JP18
JP30
JP29
Figure 3-4: SCA-M942 Front Jumpers
*The buzzer sound indicates that a condition requiring immediate attention has
occurred.
The buzzer alarm is triggered by the following conditions:
Hard drive failure
1.
Fan failure
2.
System temperature over 45º Celsius.
3.
Jumper Settings
Jumper
Jumper Settings
Note
JP18
Open (jumper off) Disabled (Default)
Close (jumper on) Enabled
Buzzer reset*
JP21
Open (jumper off) Disabled
Close (jumper on) Enabled (Default)
SCSI termination
JP24
1-2: SCSI IDs 0,1,2,3,4 (Default)
2-3: SCSI IDs 9, 10, 11, 12, 13
SCSI ID selection
JP29
1-2: ID6 (Default)
2-3: ID8
GEM 318 IDs
JP30
1-2: Enabled (Default) Alarm will sound if no fan is
present
2-3: Disabled
Fan
