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ETX-DB-ATX
17
assignment of the connectors are specified as following
tables:
• CN9: Serial Port1 Connector (9-pin D-sub)
PIN NO. DESCRIPTION
1 DATA CARRIER DETECT (DCD)
2 RECEIVE DATA
(
RXD
)
3 TRANSMIT DATA (TXD)
4 DATA TERMINAL READY (DTR)
5 GROUND
(
GND
)
6 DATA SET READY (DSR)
7 REQUEST TO SEND (RTS)
8 CLEAR TO SEND (CTS)
9 RING INDICATOR (RI)
• CN2: Serial Port2 Connector (10-pin Header/W Housing)
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 DCD 2 DSR
3 RX 4 RTS
5 TX 6 CTS
7 DTR 8 RI
9 GND 10 N/C
3.9 USB Port Connector
The ETX-DB-ATX provides four USB interfaces, which gives
the completed plug and play, for up to 127 external devices.
• CN5: External USB Connector
UP PORT DOWN PORT
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 VCC 1 VCC
2 USBD1- 2 USBD0-
ETX-DB-ATX
18
3 USBD1+ 3 USBD0+
4 GND 4 GND
•CN3: Internal USB Connector
PIN NO. DESCRIPTION PIN NO. DESCRIPTION
1 VCC 5 GND
2 USBD2- 6 USBD3+
3 USBD2+ 7 USBD3-
4 GND 8 VCC
3.10 IrDA Infrared Interface Port
• CN16: IrDA connector
PIN NO. DESCRIPTION
1 VCC
2 N.C.
3 IRRX
4 Ground
5 IRTX
3.11 TV-OUT Interface Port
• CN8: TV-out connector
PIN
NO.
DESCRIPTION PIN NO.
DESCRIPTION
1 TV-SYNC 2 TV-Y
3 GND 4 TV-C
5 GND 6 TV-CVBS
3.12 VGA Connector
The ETX-DB-ATX built-in 15-pin VGA connector accepts the
CRT monitor.
• CN10: 15-pin Female Connector
1 RED 2 GREEN
3 BLUE 4 NC
5 GROUND 6 GROUND
7 GROUND 8 GROUND