Correct RS232 cable to use with Dell C8618QT, C5518QT, C6522QT, or C5522QT monitor

Summary: Follow the guidelines below for using the correct RS232 cable on the Dell C8618QT, C5518QT, C6522QT, or C5522QT monitor to ensure that the monitor responds to RS232 commands.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

Affected Products:

  • Dell C8618QT
  • Dell C5518QT
  • Dell C6522QT
  • Dell C5522QT

RS232 cable for Dell monitor

If the Dell C8618QT, C5518QT, C6522QT, C5522QT monitor is not responding to RS232 commands, ensure the correct straight-through cable is used, and not the cross-over cable. Reference Figure 1 below for details on the correct RS232 cable:

RS232 straight through cable with pin assignment

Cause

Not Applicable

Resolution

After ensuring the proper RS232 cable is being used, you must disable the network connection following the steps below:

  1. Press and hold icon 5 on the screen for 4 seconds to turn on
    C8618QT onscreen controls
  2. A network icon appears on the top-left corner of the screen for 5 seconds:
    On-screen network icon
  3. Press and hold icon 5 on the front panel for 4 seconds.
  4. A network icon appears on the top-left corner for 5 seconds to show that the network has been disabled:
    Network disabled icon

Affected Products

Dell C5518QT, Dell C5522QT, Dell C6522QT, Dell C8618QT
Article Properties
Article Number: 000137986
Article Type: Solution
Last Modified: 16 Oct 2024
Version:  8
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