Serial Cable
Nb to pc

PC RS232(9 PIN) Signals

 1 2 3 4 5
  6 7 8 9


1 DCD   Data Carrier Detect
2 RXD   Receive Data (a.k.a RxD, Rx)
3 TXD   Transmit Data (a.k.a TxD, Tx)
4 DTR   Data Terminal Ready
5 GND   Ground
6 DSR   Data Set Ready
7 RTS   Request To Send
8 CTS  	Clear To Send
9 RI    Ring Indicator


NB Signals

1  DATA IN
2  CTS
3  POL. (Not USED)
4  DATA OUT
5  RTS
6  GND

Connections

  PC Pin		  NB PIN
    1						
    2(RXD)			4(Data out)
    3(TXD)			1(Data in)
    4(DTR)      
    5(GND)      6(GND)
    6(DSR)
    7(RTS)      2(CTS)
    8(CTS)      5(RTS)
    9
  
  