Menu path: Setup > Sessions > Citrix XenDesktop/XenApp > HDX/ICA Global > Mapping > COM Ports

  • Enable COM port mapping

    ☑ Enables the mapping of serial devices connected to the thin client to the serial interfaces of the Citrix server. (Default)

    If you would like to use signature pads, you must enable them beforehand under User Interface > Input > Signature Pad.

To manage the list of COM Port Devices, proceed as follows:

Click to create a new entry.

Click to remove the selected entry.

Click to edit the selected entry.

Click to copy the selected entry.


  • COM Port Device: Allows you to select from all serial and USB interfaces on the thin client.
    Possible values:
    • COM 1
    • COM 2
    • COM 3
    • COM 4
    • USB COM 1
    • USB COM 2
    • USB COM 3
    • USB COM 4
  • Detect devices...: Opens a dialog allowing you to select the device file. 3 device files are available for each device; the Description column shows the type of device file:
    • (GENERIC) [device designation]: Generic type. The name of the device file ends in a consecutive number which depends on the boot procedure or the order of insertion. Example: /dev/ttyUSB0
    • (BY PORT) [device designation]: According to USB port. The device file is in the /dev/usbserial/ directory. The name of the device file ends in the number of the USB port that the device is plugged into. Example: /dev/usbserial/ttyUSB_P12
    • (BY USBID) [device designation]: According to USB ID. The device file is in the /dev/usbserial/ directory. The name of the device file ends as follows: _V[Vendor ID]_P[Product ID]. Example: /dev/usbserial/ttyUSB_V067b_P2303
    • (Virtual) [device designation]: Virtual device; used for signature pads for example. Example: /dev/ttyVST0

    If your device has an additional multiport PCI card, more than 2 connections may be available.