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12-pin FPC Connector
The following table lists the pin functions of the 12-pin FPC connector.
Table 3-1
PIN#
Signal
1
EXT_TRIG#
2
EXT_RST#
3
EXT_DSF
4
EXT_BUZ
5
NC
6
USB_D+
7
USB_D-
8
TTL232_TX
9
TTL232_RX
10
GND
11
EXT_VCC
12
NC
8-pin Box Connector
The following table lists the pin functions of the 8-pin box connector.
Table 3-2
PIN#
Signal
1
EXT_VCC
2
GND
3
EXT_TRIG#
4
EXT_BUZ
5
USB_D+
6
USB_D-
7
RS232_TX
8
RS232_RX
I/O
State
I
High Level
I
High Level
O
Low Level
O
Low Level
-
-
Two-way
High Level
Two-way
Low Level
O
High Level
I
High Level
Power Supply
-
Power Supply
-
-
-
I/O
State
Power Supply
Power Supply
I
High Level
O
Low Level
Two-way
High Level
Two-way
Low Level
O
Low Level
I
Low Level
Function
External trigger control signal (active low)
External reset control signal (active low)
External good read LED control signal (active
high)
External beeper control signal (active high)
-
USB_D+ signal
USB_D- signal
TTL level 232 transmit data
TTL level 232 receive data
Power-supply ground
5V power supply input
-
-
5V power supply input
-
Power-supply ground
External trigger control signal (active low)
External beeper control signal (active
high)
USB_D+ signal
USB_D- signal
RS-232 transmit data
RS-232 receive data
Function
Remark
See Note 1
See Note 2
See Note 3
See Note 4
Remark
See Note 1
See Note 4
14
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