Contec SPI-8550-LLVAS, User Manual

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3. Hardware Installations
SPI-8550-LLVAS
31
External Battery Connector: J1
It is a 2 Pin connector used for external battery. An external battery powers the real-time clock and
CMOS memory.
Table 3.21. External Battery Connector
Pin No.
1
2
Function
GND
External battery
(3V)
J1
Housing: IL-2S-S3L-(N) (JAE)
Contact: IL-C2-1-10000 (JAE) 1 2
J1
1
2
3VSB
On board
Litiun battery
CMOS Memory
Real-time clock
1k Ω
1k Ω
Serial ATA Connector: J2 / J3
Serial ATA is the revolutionary ATA interface that provides scalable performance for IDE device. With
up to 150MB/s data transfer rate, Serial ATA is faster than current Parallel ATA and delivers superior
input/output performance. In addition, the Serial ATA interface is furnished with RAID 0,1 function for
extra performance enhancement and data protection.
Table 3.22. Serial ATA Connector
Pin No.
1
2
3
4
5
6
7
Function
GND
Serial ATA TX+
Serial ATA TX-
GND
Serial ATA RX-
Serial ATA RX+
GND
J2/J3
1