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DB9 Female to DB25 Male AT Modem Cable - 15 FT
DB9 Female to DB25 Male AT Modem Cable - 15 FT Thumbnail 1 DB9 Female to DB25 Male AT Modem Cable - 15 FT Thumbnail 2 DB9 Female to DB25 Male AT Modem Cable - 15 FT Thumbnail 3 DB9 Female to DB25 Male AT Modem Cable - 15 FT Thumbnail 4

DB9 Female to DB25 Male AT Modem Cable - 15 FT

Connect an external modem to the PC's DB9 serial port

Item # 43-104-015
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Sale Price $18.89
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$18.89 $17.99 $17.09 $16.19 $15.29
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AT Modem Cables are fully molded and foil shielded. This design ensures long lasting data integrity, regardless of modem baud rates. The hoods have office quality appearance with long, easy-grip, slotted thumbscrews for neat and easy connections, all with industrial strength robustness. With lengths available up to 25ft, your modem can be placed to organize your work area for maximum efficiency and comfort. For custom lengths or special handshaking configurations, just give us a call.

Features:

  • Connector A: DB9 Female
  • Connector B: DB25 Male
  • Foil shielded to protect against EMI/RFI interference
  • Fully molded connectors
  • Includes Thumbscrews
  • Connect a PC computer to an external modem via the DB9 serial port
DB-9F DB-25M Function
1 8 Data Carrier Detect (DCD)
2 3 Receive Data (RD or Rx)
3 2 Transmit Data (TD or Tx)
4 20 Data Terminal Ready (DTR)
5 7 Signal Ground (SGND or Gnd)
6 6 Data Set Read (DSR)
7 4 Request To Send (RTS)
8 5 Clear To Send (CTS)
9 22 Ring Indicator (RI)
REVIEW SUMMARY for DB9 Female to DB25 Male AT Modem Cable - 15 FT
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1

Q: What is a null modem cable?

A: A null modem cable connects to two standard serial ports for networking two computers together. Null modem cables enable direct data transfer with minimum setup. Null modem cables reverse the transmit and receive lines on each end of the cable to enable direct two-way communication. A null modem cable for PCs ordinarily follows the RS-232 standard and uses the same serial ports as RS-232 cables.

Q: What is the difference between a DB15 and HD15 connector?

A: A DB15 connector has 15 pins arranged in two rows, with one row on top of the other. The top row has 8 pins and the lower row has 7. A DB15 connector can be found on sound cards, older AUI network cards and devices, as well as legacy Macintosh® monitors.

A: An HD15 connector has 15 pins arranged in three rows. Each row has 5 pins with the middle row slightly offset from the top and bottom. A HD15 connector is sometimes called HD DB15 or VGA connector. The HD15 connector is a very common connector used mostly as a video interface for computers and monitors. It can also be found on HD displays, and on older HD source devices such as satellite receivers and cable boxes.

What is a Parallel Cable?

A: A parallel cable is used to connect to the parallel ports on a computer and a peripheral device like a printer or external drive. IBM originally developed parallel ports and cables as a mean for connecting a printer to the earliest personal computers.


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