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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
Buy Now
232FFNM
Female to Female Null Modem
Datasheet      
No Longer Available
232DTE
DCE to DTE Port Reverser
DCE to DTE Port Reverser
Datasheet     Photo  
GBP 13.18
Add this item to your shopping cart
232MFNM
Male to Female Null Modem
Datasheet      
No Longer Available
Recommended for New Installs:
MFNM25 - Null Modem Adapter - DB25 Male / DB25 Female
232MMNM
Male to Male Null Modem
Datasheet      
GBP 13.18
Add this item to your shopping cart
232D23R
Male to Female Pin 2 to 3 Reverser
Datasheet      
GBP 12.60
Add this item to your shopping cart

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 Europe, Middle East, Africa
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T 353.91.792444 F 353.91.792445
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