Newland NLS-EM1300, Руководство по интеграции

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Electrical Interface
Input signals
When the Trigger line is pull low for 10 ms, the Engine starts a read. The Engine keeps reading until a
successful reading, a timeout or the line is high. After a successful reading, the line must go high in order to
make another read.
Here is a schematic from the evaluation board, EVK3000&1300. The signal can connect to external device's
output port.
Trigger Input
2 3
1 4
S2
SW-PB
DGND
BOOT
DV 3.3V
DGND
TXD
RXD
RTS
CTS
BUZ
DLED
TRI G
1
2
3
4
5
6
7
8
9
10
11
12
GND
GND
DGND
A Sample Schematic of Trigger Input Circuit