Dc-Dc Power Source Cautions; Installing The Device In A Rack Or Cabinet - Brocade Communications Systems ICX 7750 Installation Manual

CAUTION
Ensure that the device does not overload the power circuits, wiring, and over-current protection. To determine the possibility
of overloading the supply circuits, add the ampere (amp) ratings of all devices installed on the same circuit as the device.
Compare this total with the rating limit fo the circuit. The maximum ampere ratings are usually printed on the devices near the
input power connectors.
DANGER
Disconnect the power cord from all power sources to completely remove power from the device.
CAUTION
Before plugging a cable to any port, be sure to discharge any static charge stored on the cable by touching the electrical
contacts to ground surface.
CAUTION
If the installation requires a different power cord than the one supplied with the device, make sure you use a power cord
displaying the mark of the safety agency that defines the regulations for power cords in your country. The mark is your
assurance that the power cord can be used safely with the device.

DC-DC power source cautions

CAUTION
For DC systems, use grounding wire of at least 12 American Wire Gauge (AWG). The grounding wire should be attached to the
DC input connector (as shown in
CAUTION
For the DC input circuit to the system, make sure there is a 20 Amp circuit breaker, minimum 60 VDC, double pole, on the
input terminal block to the power supply. The input wiring for connection to the product should be copper wire, 12 AWG,
marked VW-1, and rated minimum 90°C.

Installing the device in a rack or cabinet

DANGER
Make sure the rack or cabinet housing the device is adequately secured to prevent it from becoming unstable or falling over.
NOTE
You need a #2 Phillips screwdriver for installation.
Before mounting the switch in a rack, pay particular attention to the following factors:
•
Temperature: Because the temperature within a rack assembly may be higher than the ambient room temperature, check that
the rack-environment temperature is within the specified operating temperature range. (Refer to
on page 12.)
•
Mechanical loading: Do not place any equipment on top of a rack-mounted unit.
•
Circuit overloading: Be sure that the supply circuit to the rack assembly is not overloaded.
Brocade ICX 7750 Switch Hardware Installation Guide
53-1003900-02
Figure 18); the other end connects to the building ground.

Installing the device in a rack or cabinet

"Environmental considerations"
15