Unitech MS100 User Manual
Page 30
TTL RS232 Interface:
The following table shows pinout for TTL RS232 interface at modular
connector:
connector:
Pin Number
Signal
1
Not Used
2
VCC(+5V, output)
3
DET
4
GND
5
RXD
6
TXD
7
Power Input (+5V)
8
CTS
9
RTS
10
Not Used
Note:
(1) DET signal is bi-directional I/O pin and for internal use only.
(2) CTS and RXD are input signals and take 0V to 5V only. If the
(2) CTS and RXD are input signals and take 0V to 5V only. If the
scanner is used to interface with a standard RS232 port, those
signals should not be connected.
signals should not be connected.
Standard RS232 Interface:
To support standard RS232 interface, an RS232 adapter cable from the
manufacture must be used. This cable is a special one and can not be
replaced by the others. One end of that cable which has RS232 signal
presented is a DB25 or DB9 female connector and has following
pinout:
To support standard RS232 interface, an RS232 adapter cable from the
manufacture must be used. This cable is a special one and can not be
replaced by the others. One end of that cable which has RS232 signal
presented is a DB25 or DB9 female connector and has following
pinout:
DB25 Female (Front View)
1
13
14
25
Pin
Number
Signal
2
RXD
3
TXD
14
CTS
16
RTS
7
GND
25
Power Input(+5V
±
5%)