RS-232  Straight-Through  Cable
Table 
Table A-2.  RS-232  Straight-Through  Cable Pinouts
  | 
  | RMON | 
Modem | 
  | MultiProbe | 
  | 
  | Module | 
  | 
  | 
  | 
2  | (Tx)  | 2  | 
  | 
  | 
  | 
3  | (Rx)  | 3  | 
  | 
  | 
  | 
4  | (RTS)  | 4  | 
  | 
  | 
  | 
5  | (CTS)  | 5  | 
  | 
  | 
  | 
6  | (DSR)  | 6  | 
  | 
  | 
  | 
7  | (GND)  | 7  | 
  | 
  | 
  | 
8  | (DCD)  | 8  | 
  | 
  | 
  | 
20  | (DTR)  | 20  | 
  | 
  | 
  | 
22  | (RI)  | Not connected  | 
  | 
  | 
  | 
23  | (SR)  | Not connected  | 
  | 
  | 
  | 
A - 10 Ethernet RMON MultiProbe Module Installation and Operation Guide