Under $25

Quest Null Modem Cable, Cross-Wired

Quest offers a selection of DB-25 data cables that are cross-wire configured. These cables are configured as null modem.

Quest Null Modem Cable Cross-Wired DB-25

Quest offers a selection of DB-25 data cables that are cross-wire configured. These cables are configured as a null modem.

DB9 Serial Cable 9C Straight Male to Male

With DB9 cables, you will no longer sacrifice convenience when it comes to the placement of computer peripherals in your work area!

Let us give you the flexibility to add an additional piece of hardware wherever you need it. Our DB9 cables can allow you to add your peripherals to a switch box or replace the cables that restrict you. Each DB9 cable comes fully shielded to prevent unwanted EMI/RFI interference, and its fully-molded design delivers excellent strain relief.

This is a high quality DB9 Female to DB25 Male adapter cable commonly used to connect a PC with a DB9 COM port to a device with a DB25 serial port.

Pinout:

• 1-8
• 2-3
• 3-2
• 4-20
• 5-7
• 6-6
• 7-4
• 8-5
• 9-22

6ft DB9 Null Modem Cable - Male to Female

Serial, not Cereal

We are not talking about your breakfast cereal today. No! We are talking about serial technology. Computers have used Serial communication for many years, though not as widely used in today’s market. When most people refer to serial, they think of the DB9 cable. It is referred to as DB9 because it carries 9 pins within it. DB9 was typically used for devices such as gamepads, mice, keyboards, or other such interface devices.

What we have here is a FireFold brand 6 foot DB9 male to female serial null-modem cable. Null modems are usually used to connect DTE (data terminal equipment) like terminals or printers using an RS-232 cable. Originally, the RS-232 standard was developed and used for teleprinter machines that could communicate over phone lines. This was so that you would not have to use an actual modem for transferring information between the two devices.

6ft DB9 Null Modem Cable - Female to Female

Serial, not Cereal

We are not talking about your breakfast cereal today. No! We are talking about serial technology. Serial communication has been used by computers for many years, though not as widely used in today’s market. When most people refer to serial, they think of the DB9 cable. It is referred to as DB9 because it carries 9 pins within it. DB9 was typically used for devices such as gamepads, mice, keyboards, or other such interface devices.

What we have here is a FireFold brand 6 foot DB9 female to female serial null modem cable. Null modems are usually used to connect DTE (data terminal equipment) like terminals or printers together using a RS-232 cable. Originally, the RS-232 standard was developed and used for teleprinter machines which could communicate with each other over phone lines. This was so that you would not have to use an actual modem for transferring of information between the two devices.