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Installing this equipment into a rack in such a way as to make it unstable may cause
injury or death. Always make sure that the rack is properly secured, stable, balanced
and designed to carry the weight and weight distribution of this equipment.
Never use this equipment to carry any weight except its own. Never use it as a shelf
to support the weight of other equipment.
Locate the DC circuit breaker and switch the circuit breaker to the OFF position.
Prepare a power cable using a three conductor insulated wire (not supplied) with 12AWG
to 14AWG thickness. Cut the power cable to the length required.
Strip approximately 3/8 of an inch of insulation from the power cable wires.
Connect the power cables to the chassis by fastening the stripped ends to the DC power
connector (see Figure 6 for details on terminal block polarity).
WARNING: Note the wire colors used in making the positive, negative and
ground connections. Use the same color assignment for the connection at the
circuit breaker.
Connect the power wires to the circuit breaker and switch the circuit breaker ON. The
Power LED on the front of the chassis will illuminate as well as the Power LED on any
installed modules.
NOTE: The fans will not operate until the internal ambient temperature reaches
appropriately 50° C. The fans will turn off once the internal ambient temperature
drops below appropriately 40° C.
Figure 6: DC Powered Chassis
WARNING!!!
NEVER ATTEMPT TO OPEN THE CHASSIS OR SERVICE THE
POWER SUPPLYORFAN MODULE. OPENING THE CHASSIS
MAY CAUSE SERIOUS INJURYOR DEATH.
THERE ARE NO USER REPLACEABLE OR SERVICEABLE
PARTS IN THIS UNIT.
DC POWERED CHASSIS
This chassis is intended for installation in restricted access areas. (“Les matériels
sont destinés à être installés dans des EMPLACEMENTS À ACCÈS RESTREINT”). A
restricted access area can be accessed only through the use of a special key, or other
means of security.
The over current protection for connection with centralized DC shall be provided in the
building installation, and shall be a UL listed circuit breaker rated 20 Amps, and installed
per the National Electrical Code, ANSI/NFPA-70.
Appropriate overloading protection should be provided on the DC power source outlets
utilized.
Power source should be available within 5 ft. of the chassis. The over current protection
for the connection with centralized DC shall be provided in the building installation and
shall be a UL listed breaker rated at 15 Amps, and installed per the National Electrical
Code, ANSI/NFPA-70.
Model 1025-1 requires 36-60VDC/1.0 Amps power. Model 1026-1 requires 18-36VDC/2.0
Amps power. Appropriate overloading protection should be provided on all DC power
source outlets utilized.
WARNING: OnlyaDC power source that complies with
safety extra low voltage (SELV) requirements can be
connected to the DC-input power supply.
WARNING REGARDING EARTHING GROUND:
o
o
o
o
This equipment shall be connected to the DC supply
system earthing electrode conductor or to a bonding
jumper from an earthing terminal bar or bus to which the
DC supply system earthing electrode is connected.
This equipment shall be located in the same immediate
area (such as adjacent cabinets) as any other equipment
that has a connection between the earthed conductor of
the same DC supply circuit and the earthing conductor,
and also the point of earthing of the DC system. The DC
system shall not be earthed elsewhere.
The DC supply source is to be located within the same
premises as this equipment.
There shall be no switching or disconnecting devices in
the earthed circuit conductor between the DC source and
the earthing electrode conductor.
The standard operating temperature of this equipment is 0 to 50 degrees C. If installed
in a closed or multi-chassis rack assembly, the operating ambient temperature of the rack
must not exceed the maximum rated 50 degrees C temperature. For wide temperature
models, the operating temperature must not exceed 60 degrees C.
Installation of the equipment should be such that the air ow in the front and back of
the chassis is not compromised or restricted.