P
ULSAR
.2 SAS P
RODUCT
M
ANUAL
, R
EV
. C
56
11.4.2
Physical characteristics
This section defines physical interface connector.
11.4.3
Connector requirements
Contact your preferred connector manufacturer for mating part information. Part numbers for SAS connectors will be provided in a future
revision of this publication when production parts are available from major connector manufacturers.
The SAS device connector is illustrated in Figures 18 and 19.
11.4.4
Electrical description
SAS drives use the device connector for:
• DC power
• SAS interface
• Activity LED
This connector is designed to either plug directly into a backpanel or accept cables.
11.4.5
Pin descriptions
This section provides a pin-out of the SAS device and a description of the functions provided by the pins.
Table 24 SAS pin descriptions
P
IN
S
IGNAL NAME
S
IGNAL TYPE
P
IN
S
IGNAL NAME
S
IGNAL TYPE
S1
Port A Ground
P1*
NC (reserved 3.3Volts)
S2*
+Port A_in
Diff. input pair
P2*
NC (reserved 3.3Volts)
S3*
-Port A_in
P3
NC (reserved 3.3Volts)
S4
Port A Ground
P4
Ground
S5*
-Port A_out
Diff output pair
P5
Ground
S6*
+Port A_out
P6
Ground
S7
Port A Ground
P7
5 Volts charge
S8
Port B Ground
P8*
5 Volts
S9*
+Port B_in
Diff. input pair
P9*
5 Volts
S10*
-Port B_in
P10
Ground
S11
Port A Ground
P11*
Ready LED
Open collector out
S12*
-Port B_out
Diff output pair
P12
Ground
S13*
+Port B_out
P13
12 Volts charge
S14
Port B Ground
P14*
12 Volts
P15*
12 Volts
* - Short pin to support hot plugging
NC - No connection in the drive.
