Dell ThunderDock WD22TB4 - Manual (Page 25)

Port disablement
Port Disablement is a system feature that enables user to selectively disable DisplayPort or Thunderbolt protocols over USB
Type-C ports.
● The feature is offered through BIOS and requires user to boot to BIOS Setup Menu to activate/deactivate the feature.
● Port Disablement is handled at low level and cannot be deactivated by operating system.
● The Port Disablement is extended to Dell Docks by importing system configuration and applying the settings locally.
New Gen MFDP (Multi-Function Display Port) Systems
New generation of systems with MFDP Type-C ports offers following configuration options in BIOS:
1. Enable/Disable External USB Port to enable/disable USB protocol over USB Type-A and Type-C ports.
2. Enable/Disable Integrated NIC (this setting will be imported by Dock).
The table below illustrates how those settings will affect functionality of the Dock:
Table 8. New Gen MFDP (Multi-Function Display Port) Systems
MFDP system Docked system
configuration
Dell WD22TB4 Dock
BIOS setup options Thunde
rbolt
Module
Base
Case Enable
externa
l USB
ports Disable
USB4 PCIe
Tunneling Dock
Overrid
e System
Dock
port
power
delivery
modes Thunde
rbolt
port LAN Video ports Type-C
MFDP
port Type-C
USB
port Type-A
USB
port
1 Off NA Off Power
only Power
only Disabled Disabled Disabled Disabled Disabled
On USB4/
DP/USB DP By
system
setup DP/HDMI DP Disabled Disabled
2 On Off Off USB4/
DP/USB USB4/
DP/USB Enabled DP/HDMI DP/USB USB3/
USB2
USB3/
USB2
On USB4/
DP/USB USB4/
DP/USB By
system
setup DP/HDMI DP/USB USB3/
USB2
USB3/
USB2
On Off USB4/
DP/USB USB4/
DP/USB Enabled DP/HDMI DP/USB USB3/
USB2
USB3/
USB2
On USB4/
DP/USB USB4/
DP/USB By
system
setup DP/HDMI DP/USB USB3/
USB2
USB3/
USB2
New Gen TBT (Thunderbolt) Systems
New generation of systems with Thunderbolt ports offers following configuration options in BIOS:
1. Enable/Disable Thunderbolt to activate Thunderbolt Controller and enable Thunderbolt protocol over USB Type-C port.
2. Enable/Disable External USB Port to enable USB protocol over USB Type-A and Type-C ports.
3. Enable/Disable Integrated NIC (this setting will be imported by Dock).
The table below illustrates how those settings will affect functionality of the Dock:
Technical specifications 25