Samsung TECHWIN SAMS Pro User Manual page 193

Appendix C.
SETTING UP THE CARD READER FOR CARD REGISTRATION
You can use the card reader to register a user (visitor) / master cards.
Requirements
1. DSUB 9-PIN RS232 Male Connector Currently, it uses the DSUB 9PIN RS232 Male connector for system
connection. Communication uses the PIN-2(RXD) and PIN-5(GND) of 9 pins of the connector.
DSUB 9-PIN Male Connector Pin Out
2. USB-to-Serial Convertor
If the PC has no serial port, use the USB-to-Serial converter as shown below.
Card Reader and PC Setup
RS232 Pinout
Pin 1: Data Camer Detect (DCD)
Pin 2: Received Data (RXD)
Pin 3: Transmit Data (TXD)
Pin 4: Data Terminal Ready (DTR)
Pin 5: Ground (GND)
Pin 6: Data Set Ready (DSR)
Pin 7: Request To Send (RTS)
Pin 8: Clear To Send (CTS)
Pin 9: Ring Indicator (RI)
DSUB 9PIN Male Connector Pin Out
USB-to-Serial Converter
1. PC
2. USB
3. USB-to-Serial Convertor
4. DSUB9pin
5. TX
6. GND
7. Reader
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