2-3
Safety Information and Technical Specifi cations
9. Activity LED Header
The activity LED header, designated JP26,
is used to indicate the activity status of each
SAS drive. For the Activity LED Header to
work properly, connect using a 10-pin LED
cable.
6 and 7. Sideband Headers
The sideband headers are designated JP51
and JP52. For SES-2 to work properly, you
must connect an 8-pin sideband cable. See
the table to the right for pin defi nitions.
Sideband Headers
(JP51 and JP52)
Pin # Defi nition
Pin # Defi nition
2
Mobile rack
Addressing
(SB5)
1
Controller
ID (SB6)
4
Reset (SB4)
3
GND (SB2)
6
GND (SB3)
5
SDA (SB1)
8
Mobile rack
ID (SB7)
7
SCL (SB0)
10
No Connec-
tion
9
No Connec-
tion
SAS Activity LED Header
Pin Defi nitions (JP26)
Pin # Defi nition
Pin # Defi nition
1
ACT IN#0
6
ACT IN#4
2
ACT IN#1
7
ACT IN#5
3
ACT IN#2
8
ACT IN#6
4
ACT IN#3
9
ACT IN#7
5
Ground
10
Empty
10. Fan Connector
The 3-pin connectors, designated JP22,
provide power to the mobile rack fan. See
the table on the right for pin defi nitions.
Fan Connectors
(JP22)
Pin# Defi nition
1
Ground
2
+12V
3
Tachometer
8. Upgrade Connector
The Upgrade connector, designated JP46,
is used for diagnostic purposes only. This
connector should only be accessed by a
certifi ed and experienced technician.
11 - 15. SAS Ports
The SAS ports are used to connect the SAS
drive cables. The 5 ports are designated
#0 - #4. Each port is also compatible with
SATA drives.
Содержание SAS M35TQ
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