Monoprice

Monoprice 101136 DB9 Male/Female Null Modem Adapter

4.1 (7 reviews)

Seamless Serial Connection for Data TransferThe Monoprice DB9 Null Modem Adapter provides a reliable solution for connecting two computers or devices for file transfer. With its male-to-female configuration and crossed transmit/receive conductors, this adapter ensures proper communication between...

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Overview

Seamless Serial Connection for Data Transfer

The Monoprice DB9 Null Modem Adapter provides a reliable solution for connecting two computers or devices for file transfer. With its male-to-female configuration and crossed transmit/receive conductors, this adapter ensures proper communication between devices.

Specifications

  • Connector Type: Serial Adapter
  • Configuration: DB9 Male to Female
  • Function: Null Modem
  • Dimensions: 2 x 1.31 x 0.63 inches
  • Weight: 0.353 ounces

Key Features

RS-232 DB 9 pin male to female null modem

Null modems are used to connect two computers or other devices together to achieve file transfer

Null modem connectors are different from straight through connectors because the receive and transmit conductors are crossed

This is a null modem with a male connectors on one side and a female on the other

Specifications

Brand
Monoprice
Product Type
Null Modem Adapter
Connector Type
DB9 Male to DB9 Female
Interface
RS-232
Pin Configuration
Null Modem (receive and transmit conductors crossed)

Pros & Cons

👍 Pros

  • Facilitates direct connection between two computers or devices for file transfer using its null modem configuration
  • Features a practical male to female DB9 pin arrangement, providing versatility for various cable setups
  • Designed with crossed receive and transmit conductors, essential for proper null modem functionality
  • Offers an RS-232 DB9 pin male to female configuration, ensuring compatibility with standard serial ports
  • Provides a straightforward solution for specific data transfer needs without requiring complex network setups

👎 Cons

  • Only suitable for RS-232 DB9 connections, making it incompatible with other serial or modern interfaces
  • Primarily designed for file transfer between two devices, limiting its use for broader networking applications
  • The crossed wiring of a null modem means it cannot be used as a standard straight-through serial extension
  • Its specific function might not be universally understood by all users, requiring some technical knowledge
  • As a physical adapter, it adds a small extension to the cable length, which could be a consideration in tight spaces

Frequently Asked Questions

The primary function of this adapter is to connect two computers or other devices directly together for file transfer purposes, establishing a null modem connection.
A null modem adapter is distinct because its receive and transmit conductors are crossed, allowing two DTE (Data Terminal Equipment) devices to communicate directly without a modem.
This adapter features a DB9 male connector on one side and a DB9 female connector on the other, facilitating connections between different gender DB9 ports.
No, this adapter is specifically designed for RS-232 DB9 pin null modem connections. It will not work for straight-through serial connections or other interface types.
This adapter will physically extend a cable, but because it is a null modem, it will change the wiring configuration, making it unsuitable for simply extending a straight-through serial connection.
RS-232 refers to a standard for serial communication, and DB9 pin specifies the physical connector type with nine pins commonly used for these serial interfaces.