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S-ATA Connectors
For the connection of external Mass Storage Devices, there are two standard male 7 poles SATA connectors,CN24,CN25, type WINNING p/n
WATM-07ABN4B2B8UW or equivalent.
These connectors carry out directly SATA port #0 and SATA port #1 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 and #1 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.
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.
CCOMe-C79
CCOMe-C79 - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by E.S. Copyright © 2021 SECO S.p.A.
SATA #0 Connector
CN24
Pin
Signal
1
GND
2
SATA0_Tx+
3
SATA0_Tx-
4
GND
5
SATA0_Rx-
6
SATA0_Rx+
7
GND
SATA #1 Connector
CN25
Pin
Signal
1
GND
2
SATA1_Tx+
3
SATA1_Tx-
4
GND
5
SATA1_Rx-
6
SATA1_Rx+
7
GND
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