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2-2 Electrical interface/Pin assignment of cable connector
The embedded scanner has a RJ-45 cable connector. Table 2-1 lists the pin assignments of the
embedded scanner.
Pin
RS-232
No.
Pin/Signal Name
1
Power (5V)
2
NC
3
Ground
3.3V (for interface
4
auto selection)
5
TXD
6
RXD
7
NC
8
TRIG
9
CTS
10
RTS
Note: Voltage level of all RS-232 Pin-outs (RXD, TXD, CTS and RTS) is 0V for logic low level and 3.3V
for logic high level.
PIN10
Cable connector
Figure 2-2 Electrical interface/Pin
Table 2-1 Electrical interface/Pin assignment
Type
Pin/Signal Name
Power
Power (5V)
-
Power
Ground (for interface
Input
auto selection)
Output
Input
-
Input
Input
Output
PIN1
USB
Type
Power
NC
-
Ground
Power
Input
Reserved
-
Reserved
-
NC
-
TRIG
Input
D-
-
D+
-
6
Descriptions
Power: +5 VDC
NC: Not connected
Ground: 0V reference
RS-232: Logic high level, 3.3V
USB: Logic low level, 0V reference
RS-232: Serial data transmit output
port (Transmitted data)
RS-232: Serial data receive input port
(Received data)
NC: Not connected
Trigger.
Logic low level (activity): 0V
referenceLogic high level: 3.3V
RS-232: handshaking line
(Clear-to-send).
USB: Negative differential line.
RS-232: handshaking line
(Request-to-send).
USB: Positive differential line.
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