User`s manual
FOX HD-SDI • Installation and Operation
Installation and Operation
FOX HD-SDI • Installation and Operation
2-2
2-3
Mounting the Unit
C
  Installation and service must be performed by 
authorized personnel only.
The 1" high, quarter-rack width transceiver can be placed on 
a tabletop, mounted on a rack shelf, mounted under a desk or 
tabletop, or mounted on a projector bracket.
Tabletop placement
Affix the four included rubber feet to the bottom of the unit and 
place it in any convenient location.
Rack mounting
UL requirements
The following Underwriters Laboratories (UL) requirements 
pertain to the installation of the FOX HD-SDI transmitter or 
receiver into a rack (figure 2-1).
1.  Elevated operating ambient temperature — If 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 +122 °F 
(50 °C) maximum ambient temperature (Tma) specified by 
Extron.
2.  Reduced air flow — Installation of the equipment in a rack 
should be such that the amount of air flow required for 
safe operation of the equipment is not compromised.
3.  Mechanical loading — Mounting of the equipment in 
the rack should be such that a hazardous condition is not 
achieved due to uneven mechanical loading.
4.  Circuit overloading — Consideration should be given to 
the connection of the equipment to the supply circuit and 
the effect that overloading of the circuits might have on 
overcurrent protection and supply wiring. Appropriate 
consideration of equipment nameplate ratings should be 
used when addressing this concern.
5.  Reliable earthing (grounding) — Reliable earthing 
of rack-mounted equipment should be maintained. 
Particular attention should be given to supply connections 
other than direct connections to the branch circuit (such as 
the use of power strips).
Mounting instructions
For optional rack mounting, mount the transceiver on any of the 
following rack shelves:
  •  RSF 123 3.5" deep 1U VersaTools
®
 rack shelf kit 
(part #60-190-20) (figure 2-1)
  • 
RSB 123  3.5" deep 1U VersaTools rack shelf (part #60-604-20)
  •  RSU 126 6" deep 1U universal rack shelf kit 
(part #60-190-10)
  •  RSB 126 6" deep 1U basic rack shelf (part #60-604-10)
  •  RSU 129 9.5" deep 1U universal rack shelf kit 
(part #60-190-01) (figure 2-2 on the next page)
  •  RSB 129 9.5" deep 1U basic rack shelf (part #60-604-01)
(2) 4-40 x 3/16" 
Screws 
Use 2 mounting holes on 
opposite corners. 
VersaTools Rack Shelf 
1/4 Rack Width Front 
False Faceplate 
Figure 2-1 — Mounting the transceiver on a 
VersaTools rack shelf
On the non-VersaTools rack shelves, the transceiver unit can be 
mounted in the front or the rear of the rack.
1.  If installed, remove the feet from the bottom of the unit.
2.  Mount the unit on the shelf, using two 4-40 x 3/16" screws 
in opposite (diagonal) corners to secure the unit to the 
shelf.
3.  Install false faceplate(s) or other unit(s) to the rack shelf.
4.  Insert the shelf into the rack, aligning the holes in the shelf 
with those of the rack.










