SimpleTech ZeusIOPS manual Pin SCA-2 Connector Pinout, Voltage and Ground Signals

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

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

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.

36 ZeusIOPS 3.5-Inch Fibre Channel Solid State Drive Product Manual Rev. 1.0