MATRIX 210™ REFERENCE MANUAL
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5
5.4.1 RS232 Interface
The RS232 interface can be used for Point-to-Point, Pass Through or Master/Slave
connections. When it is connected to the host computer it allows both transmission of code
data and reader configuration by VisiSet™.
The following pins of the 25-pin connector are used for RS232 interface connection:
Pin
Name
Function
2
TX
Transmit Data
3
RX
Receive Data
4
RTS
Request To Send
5
CTS
Clear To Send
7
GND
Ground
It is always advisable to use shielded cables. The overall maximum cable length must be
less than 15 m (49.2 ft).
Matrix 210™
7
4
5
3
GND
RTS
CTS
RX
TX
2
USER INTERFACE
GND
CTS
RTS
TXD
RXD
1
Chassis
Figure 64 - RS232 Main Interface Connections Using Hardware Handshaking
The RTS and CTS signals control data transmission and synchronize the connected devices.
Figure 65 - RS232 Control Signals
If the RTS/CTS handshaking protocol is enabled, Matrix
210™ activates the RTS output to
indicate a message is to be transmitted. The receiving unit activates the CTS input to enable
the transmission.
Summary of Contents for Matrix 210
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