Extron Electronics IPL T CR48 - Manual (Page 10)

UL Guidelines for Rack Mounting
The following Underwriters Laboratories (UL) guidelines pertain to the installation of an
IPL T CR48 unit onto a rack.
1. Elevated operating ambient — 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 maximum ambient temperature specified by the manufacturer [Tma = +32 to
+122 °F (0 to +50 °C)].
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).
Rack Mounting
For optional rack mounting, mount the unit on an RSF 123 Rack Shelf
(part #60-190-20) (
figure 1 ) or an RSU 129 Universal Rack Shelf (part #60-190-01)
( figure 2 ).
(2) 4-40 x 3/16"
Screws
Use 2 mounting holes on
opposite corners.
RSF 123 Rack Shelf
1/4 Rack Width Front
False Faceplate
Figure 1. Mounting the Unit on the RSF 123 Rack Shelf
Use 2 mounting holes on
opposite corners.
(2) 4-40 x 3/16"
Screws
1U Universal Rack Shelf
Both front false faceplates
use 2 screws.
1/4 Rack Width Front False
Faceplate
1/2 Rack Width Front False
Faceplate
Figure 2. Mounting the Unit on the RSU 129 Universal Rack Shelf
IPL T CR48 • Installation and Operation 4