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36 Zeus
IOPS
3.5-Inch Fibre Channel Solid State Drive Product Manual Rev. 1.0
CONNECTOR PINOUT
This section provides the pinout of the 40-pin SCA-2 connector, the pinout signal characteristics, and
the use of the pinout signals with respect to the SSD. Refer to Table 10 for the 40-pin SCA-2
connector pin-out.
Table 10. 40-Pin SCA-2 Connector Pinout
VOLTAGE AND GROUND SIGNALS
The 12V contacts provide all the power required by the drive. The 5V Charge and 5 Volt contacts are
not used. All 5V ground and 12V ground contacts are connected to the drive ground plane.
Pin Signal Name Signal Type Pin Signal Name Signal Type
1 -ENBL BYP CH1 Low Voltage TTL Output 21 12V Charge
2 12 Volts 22 12V Ground GND
3 12 Volts 23 12V Ground GND
4 12 Volts 24 +Port 1_In Differential
PECL Input Pair
5 -Parallel ESI 25 -Port 1_In
6 -Drive Present GND 26 12V Ground GND
7 Ready LED Out Open Collector Out 27 +Port 2_In Differential
PECL Input Pair
8 Power Control 28 -Port 2_In
9 Start_1/Mated TTL Input 29 12V Ground GND
10 Start_2/Mated TTL Input 30 +Port 1_Out Differential
PECL Output Pair
11 -ENBL BYP CH1 Low Voltage TTL Output 31 -Port 1_Out
12 SEL_6/-EFW TTL Input/Output 32 5V Ground GND
13 SEL_5/-P_ESI_5 TTL Input/Output 33 +Port 2_Out Differential
PECL Output Pair
14 SEL_4/-P_ESI_4 TTL Input 34 -Port 2_Out
15 SEL_3/-P_ESI_3 TTL Input/Output 35 5V Ground GND
16 Fault LED Out Open Collector Out 36 SEL_2/-P_ESI_2 TTL Input/Output
17 DEV_CTRL_CODE_2 TTL Input 37 SEL_1/-P_ESI_1 TTL Input/Output
18 DEV_CTRL_CODE_1 TTL Input 38 SEL_0/-P_ESI_0 TTL Input/Output
19 5 Volts 39 DEV_CTRL_CODE_0 TTL Input
20 5 Volts 40 5 Volts Charge