User Guide Owner's manual
2-11
USB HUB4 Series • Installation
PRELIMINARY
3.  Attach the AAP or MAAP mounting frame with the attached HUB4 to the 
mounting bracket using the two included mounting screws.
Wall
Wall Mounting
Bracket
Extron
CPM101
Mounting Frame
Extron
USB HUB4 MAAP
USB Hub
VTT001MAAP
POWER
USB HUB4 MAAP
ACTIVITY
Mounting a USB HUB4 MAAP to a mounting bracket
Rack ounting the USB HUB
You can mount the HUB4 to an optional rack shelf or directly onto a rack using 
an Extron rack space frame, such as the CPM112R (for the MAAP model) or the 
AAP 301/302 (for the AAP model). See “Optional accessories” in appendix A, 
“Reference information”, for a list of rack shelves and rack space frames that can be 
used with the two USB HUB4 models.
UL guidelines for rack ounting
The following Underwriters Laboratories (UL) guidelines pertain to the installation 
of the USB HUB4 onto the front of a rack:
•  Elevated operating ambient temperature — If the equipment is installed in 
a closed or multi-unit rack assembly, the operating ambient temperature of 
the rack environment may be greater than room ambient. Therefore, consider 
installing the equipment in an environment compatible with the maximum 
ambient temperature (Tma) specified by the manufacturer. 
•  Reduced air ow — Install the equipment in the rack so that the amount of 
air ow required for safe operation of the equipment is not compromised. 
•  Mechanical loading — Mount the equipment in the rack so that uneven 
mechanical loading does not create a hazardous condition. 
•  Circuit overloading — When connecting the equipment to the supply 
circuit, consider the connection of the equipment to the supply circuit and 
the effect that circuit overloading might have on overcurrent protection and 
supply wiring. Consider equipment nameplate ratings when addressing this 
concern. 
•  Reliable earthing (grounding) — Maintain reliable grounding of rack-
mounted equipment. Pay particular attention to supply connections other 
than direct connections to the branch circuit (such as the use of power strips). 










