Installation guide

18
6. RS232 Interface
6.1. Pin-out
7. DSR/DTR Connection
6.2. Signals
Pin Signal
DTE
Direction
DCE
Direction
Description
1 CD Input Output Not connected
2 TxD Output Input Transmitting data
3 RxD Input Output Receiving data
4 DSR Input Output Contact manufacturer for set up
5GNDN/A N/A Signal ground
6 DTR Output Input Contact manufacturer for set up
7 CTS Input Output Clear to send
8 RTS Output Input Request to send (Default)
9 Vcc Input Input Power supply (5VDC, 1.5A Max.)