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HP THUNDERBOLT DOCK G4 Features And Troubleshooting page 6

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T E C H N I C A L W H I T E PA P E R
CONTENTS &
NAVIGATION
2
HP Thunderbolt Dock G4 specifications summary
HP Thunderbolt G4 Dock, The Dock That
Does It All
3-4
First-time Connection
5-6
Supported Modes (Multi-Function
and Thunderbolt
4/USB4/Thunderbolt
TM
TM
Pre-Boot Support
LED/Power Button
6-9
Charging Support from the Dock
Display Capabilities
9-10
HP Sure Start for Docks
Thunderbolt
Security Levels – Available Functions
TM
and Ports
10-12
Manageability
13-14
Troubleshooting Issues
15-19
Support list for the HP Thunderbolt 4 Dock
HP Commercial Notebook / mWS Platform Support
6.
NOTE: On non-HP notebooks, Chrome or non-supported HP notebooks can have same behavior as HP supported notebooks
if they have implemented the "Extended Alert Event Type" from the industry standard "Universal Serial Bus Power
Delivery Specification revision 3.1 and above", then the dock power button and power LED will behave similarly
to the power LED of the host.
C H A R G I N G S U P P O R T F R O M T H E D O C K
a. LED in back – indicates valid adapter
If an HP adaptor of 19.5V and 120W or larger is connected to the dock the white LED will light. When an HP adapter
of 19.5V and 120W or larger is connected to the dock the white LED will light. All other adaptors will be rejected,
and the LED will be off and the dock will not function
b. Power to Host
i. Type-C® power to host: 5V/5A, 9V/5A, 12V/5A, 15V/5A, 20V/5A
ii. Power over AC combo cable (barrel connection): 230W
c. USB ports. See Table 2
Port 5 (back)*
See Figure C
Port 3 (back)
See Figure C
3)
Port 2 (front)
See Figure A
USB-A
Table 2: USB Port capabilities
*Only when connected to a Thunderbolt
Thunderbolt
Dock G4 Power/Charging
TM
The HP Thunderbolt Dock G4 has two different configurations and provides power to the host through two different cables.
The only difference is the AC adaptor and cable assembly. The USB Type-C® cable is configured and electronically marked
to support 40 Gbps Thunderbolt
host and the dock. If the cable must be replaced it is highly recommended to use the HP cable designed for this dock. Failure
to use the HP Thunderbolt dock cable may result in decreased Thunderbolt
USB Type-C® cables may not support 40 Gbps Thunderbolt
Non-Workstation Version
An HP 120W AC adaptor and an attached USB-C® Thunderbolt
is provided. The HP 19.5V 120W AC adaptor is the minimum required supply and anything less than this will be
rejected. An HP adaptor that supports 19.5V and is larger than 120W is acceptable and usable.
Workstation
An HP 19.5V 280W AC adaptor and an attached USB-C®/Barrel Thunderbolt
can split the USB-C® and Barrel connection may be provided. These cables provide connections to the USB-C® port
and the barrel connector on the notebook. The USB-C® connection still supports up to 100W (20 volts 5 amperes),but
is not used by the host when the barrel connector is used. The barrel connector only works when a 280W or above
adaptor is attached. If a smaller adaptor is used, only the USB-C® connection is used for charging.
D I S P L A Y C A P A B I L I T I E S
Thunderbolt
Dock G4 Port limitation
TM
• The DP port 2 (lower) and USB Type-C® DP port 3 are mutually exclusive. Only one may be used at a time.
See figure C.
• When used with USB Type-C® multifunction host, port 1 (USB Type-C® Thunderbolt
functionality with no video. See Figure C.
Number of Displays connected to the dock:
-
Dual 4K @ 60Hz when connected to DP1.2 systems
-
Triple 4K @ 60Hz when connected to DP1.4 systems with DSC (display stream compression)
USB-C®
(1) - USB-C® TB pass-through
USB PD; 0.9A, 1.5A, 3A @ 5V (max 15W)
(1) - USB-C® USB 3.2 Gen 2
USB PD; 0.9A, 1.5A, 3A @ 5V (max 15W)
(1) - USB-C® USB 3.2 Gen 2
USB PD; 0.9A, 1.5A, 3A @ 5V (max 15W)
(port 1 - See Figure C) - USB Type-A port 3.2 Gen 1
(port 1 - See Figure C) - USB Type-A port 3.2 Gen 1
(port 4 - See Figure A) - USB Type-A port 3.2 Gen 1
BCS1.2 (1.5A @ 5V) - CHARGING
(port 1 - See Figure A) - USB Type-A port 3.2 Gen 1
BCS1.2 (1.5A @ 5V) - CHARGING
port. If Thunderbolt
is not supported defaults to USB2.0 only port.
TM
TM
speeds and 5 ampere capabilities. The capability of the cable can be read by both the HP
TM
speeds or currents over 3 amperes.
TM
performance and capabilities. Other 3rd party
TM
cable that supports up to 20 volts 5 amperes (100W)
TM
cable is provided. An optional cable that
TM
port) has only USB 2.0
TM

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