Newland NLS-EM20-85, Руководство по установке

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