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Home > Products > Null modems

 Null modems

  • Interconnect two computers with similar RS-232 ports without a LAN
  • Addresses the most common RS-232 problem; the reversal of Transmit (pin 2) and Receive Data (pin 3)
  • All DB25 connectors
  • Other popular pin arrangements available — see below.

 

Null Modem diagram

 

   
Model No.
Description
Price
232FFNM
Female to Female Null Modem
Datasheet      
232DTE
DCE to DTE Port Reverser
DCE to DTE Port Reverser
Datasheet     Photo
Recommended for New Installs:
MFDTE25 - DCE to DTE Port Reverser - DB25 Male / DB25 Female  
 
$0.00

232MFNM
Male to Female Null Modem
Datasheet    
Recommended for New Installs:
MFNM25 - Null Modem Adapter - DB25 Male / DB25 Female  
232MMNM
Male to Male Null Modem
Datasheet    
Recommended for New Installs:
MMNM25 - Null Modem Adapter - DB25 Male / DB25 Male  
 
$20.00

232D23R
Male to Female Pin 2 to 3 Reverser
Datasheet    
Recommended for New Installs:
MF23R25 - Pin 2 to Pin 3 Reverser - DB25 Male / DB25 Female  
 
$20.00

 

 

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