![](https://www.danbit.dk/20031-large_default/nullmodem-adapter-with-db25-male-female-connector-sending-rts.jpg)
1 piece. DB25 male and 1pc. DB25 female Type 1
With type 1, the equipment itself ensures that it receives the "handshake signal" (CTS) that many communications software requires.
With type 3, the counterparty must deliver the handshake signal. This means that the counterparty can start and stop the data flow using its RTS signal. In some cases, type 3 can replace type 1 - see leg connections in the drawing on the left
1 piece. DB25 male and 1pc. DB25 female Type 3
Zero modem cable with 2 x DB9 female, 28 AWG
Null modem cable 1 x DB9 Han / 1 x DB9 She.
negotiated in several lengths
Nullmodem kabel med 2 x DB9 hun, 28 AWG