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N10-005 · Question #685

A technician is tasked with replacing some older RS-232 serial printers. Which of the following ports would the technician most likely find on these printers?

The correct answer is B. DB-9. RS-232 is a serial communication standard that uses DB-9 (9-pin D-subminiature) or DB-25 (25-pin) connectors. Older serial printers and devices commonly featured DB-9 ports. BNC connectors are used for coaxial cable (video or older 10Base2 networking), LC connectors are fiber…

Networking concepts

Question

A technician is tasked with replacing some older RS-232 serial printers. Which of the following ports would the technician most likely find on these printers?

Options

  • ABNC
  • BDB-9
  • CLC
  • DRJ-11

How the community answered

(38 responses)
  • A
    3% (1)
  • B
    92% (35)
  • C
    5% (2)

Explanation

RS-232 is a serial communication standard that uses DB-9 (9-pin D-subminiature) or DB-25 (25-pin) connectors. Older serial printers and devices commonly featured DB-9 ports. BNC connectors are used for coaxial cable (video or older 10Base2 networking), LC connectors are fiber optic cable connectors, and RJ-11 is the small 4- or 6-pin connector used for telephone lines - none of these are associated with RS-232 serial interfaces.

Topics

#DB-9#RS-232#serial connector#legacy hardware

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