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S-ATA Connectors
For the connection of external Mass Storage Devices, there are four standard male 7 poles SATA connectors, CN21,CN22,CN24,CN25, type
WINNING p/n WATM-07ABN4B2B8UW or equivalent.
These connectors carry out directly SATA port #0 #1 #2 and #3 signals coming from COM Express module's connector. Each SATA channel is
composed by two differential pairs, SATA_TxX and SATA_RxX.
Please notice that each SATA connector will work only in case the COM Express module carries out SATA Channel #0 #1 #2 #3 on COM Express connector
In case the COM Express module used doesn't have these signals connected, then one or more of these connectors will not be usable.
SATA #0 Connector
CN24
Pin
Signal
1
GND
2
SATA0_Tx+
3
SATA0_Tx-
4
GND
5
SATA0_Rx-
6
SATA0_Rx+
7
GND
Here following the signals related to SATA interface:
SATA0_TX+/SATA0_TX-: Serial ATA Channel #0 Transmit differential pair.
SATA0_RX+/SATA0_RX-: Serial ATA Channel #0 Receive differential pair.
SATA1_TX+/SATA1_TX-: Serial ATA Channel #1 Transmit differential pair.
SATA1_RX+/SATA1_RX-: Serial ATA Channel #1 Receive differential pair.
SATA2_TX+/SATA2_TX-: Serial ATA Channel #2 Transmit differential pair.
SATA2_RX+/SATA2_RX-: Serial ATA Channel #2 Receive differential pair.
SATA3_TX+/SATA3_TX-: Serial ATA Channel #3 Transmit differential pair.
SATA3_RX+/SATA3_RX-: Serial ATA Channel #3 Receive differential pair.
CCOMe-C96
CCOMe-C96 - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. Copyright © 2021 SECO S.p.A.
SATA #1 Connector
CN25
Pin
Signal
1
GND
2
SATA1_Tx+
3
SATA1_Tx-
4
GND
5
SATA1_Rx-
6
SATA1_Rx+
7
GND
SATA #2 Connector
CN21
Pin
Signal
1
GND
2
SATA2_Tx+
3
SATA2_Tx-
4
GND
5
SATA2_Rx-
6
SATA2_Rx+
7
GND
SATA #3 Connector
CN22
Pin
Signal
1
GND
2
SATA3_Tx+
3
SATA3_Tx-
4
GND
5
SATA3_Rx-
6
SATA3_Rx+
7
GND
50
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