Newland NLS-FM515 Series, User Manual

Page: 27 / 162

17
Interface Pinouts
The following table lists the pin functions of the 7-pin hot-tinned wire connector.
Table 4-1
PIN# Signal I/O State Function Remark
Red
DC IN / /
Power input
Orange
SW IN I Low level
Switching input See Note 1
Purple
GND / /
Power-supply ground
Black
SW OUT O Low level
Switching output See Note 2
White
RS232 RXD I Low level
RS-232 input
Green
RS232 TXD O /
RS-232 output
Yellow
Shield / /
Shield
※
I = Input; O = Output; od = Open Drain;
※
1 The SW IN pin is used as trigger signal. A trigger pull (default duration: 10ms) activates a decode session. The decode
session continues until a barcode is decoded or you release the trigger.
For the external switching input circuit, please see the “Switching Input Circuit” section in Chapter 5.
For more details, please see the “Switching Input Signal” section in Chapter 9.
※ 2 The SW OUT pin is reserved as external switching output signal. If this pin is not used, leave it unconnected. It produces
high level (duration: 400ms) after a barcode is decoded.
For the external switching output circuit, please see the “Switching Output Circuit” section in Chapter 5.
For more details, please see the “Switching Output Signal” section in Chapter 9.
DC Characteristics
Operating Voltage
Table 4-2
T=25°C
Parameter Description Minimum Typical Maximum Unit
VCC Input Voltage 4.75 5 24 V