Newland NLS-EM2096, Integration Manual

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14
Chapter 4 Interfaces
Host Interface Connector
The following table lists the pin functions of the 12-pin host interface connector of the EM2096.
PIN# Signal I/O Description
1 NC - Not connected.
2 VDD - 3.3V power supply.
3 GND - Power-supply ground.
4 RX I TTL level 232 receive data.
5 TX O TTL level 232 transmit data.
6 USB_D- I/O USB D- differential data signal.
7 USB_D+ I/O USB D+ differential data signal.
8 NC - Not connected.
9 Buzz O
Beeper output. For the information of external beeper driver circuit,
see the Beeper section in this chapter.
10 LED O
Good Read LED output. For the information of external LED driver
circuit, see the Good Read LED section.
11 Reset I Reset signal input: Driving this pin low for 100us resets the engine.
12 nTrig I
Trigger signal input: Driving this pin low for 10ms causes the
EM2096 to start a scan and decode session.