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Important Safety Instructions
1. Read and follow all warning notices and instructions marked on the product or
included in the manual.
2. If installed in a carrier with an AC power supply, this product is intended to be used
with a 3-wire grounding type plug – a plug which has a grounding pin. This is a
safety feature. Equipment grounding is vital to ensure safe operation. Do not defeat
the purpose of the grounding type plug by modifying the plug or using an adapter.
Prior to installation, use an outlet tester or a voltmeter to check the ac receptacle for
the presence of earth ground. If the receptacle is not properly grounded, the
installation must not continue until a qualified electrician has corrected the problem.
If a 3-wire grounding type power source is not available, consult a qualified
electrician to determine another method of grounding the equipment.
3. If installed in a carrier with a DC power supply, this product is intended to be used in
a restricted access location. Connect the product to a –48 VDC SELV (Safety Extra
Low Voltage) supply source that is electronically isolated from the AC source. The
–48 VDC source is to be reliably connected to earth. Connect the earthing
(grounding) conductor to the protective earthing (grounding) lug connector,
identified by the protective earth symbol. This is a safety feature. Equipment
grounding is vital to ensure safe operation.
Prior to installation, use a voltmeter/ohmmeter to check the wiring for the presence
of earth ground. If the wiring is not properly grounded, the installation must not
continue until a qualified electrician has corrected the problem.
A readily accessible disconnect device as part of the building installation shall be
incorporated into the fixed wiring. The disconnect device (a –48 VDC, 15 or 20A
circuit breaker or switch) must be included in the ungrounded supply conductor.
Overcurrent protection must be a 15 or 20A, –48 VDC fuse or circuit breaker.
This product is to be installed only in a Restricted Access Location (dedicated
equipment rooms, equipment closets, or the like) in accordance with articles
110-16, 110-17 and 110-18 of the National Electrical Code, ANSI/NFPA 70, and
articles 2-308, 2-310, 2-312, 2-314, 2-200, and 2-202 of the Canadian Electrical
Code.
The rear I/O panel has provision for a permanently connected protective earthing
(grounding) conductor. Connect a 6–14 AWG conductor to this solderless lug
connector, identified by the protective earth symbol.
4. Slots and openings in the cabinet are provided for ventilation. To ensure reliable
operation of the product and to protect it from overheating, these slots and
openings must not be blocked or covered.
5. Do not allow anything to rest on the power cord and do not locate the product where
persons will walk on the power cord.
6. Do not attempt to service this product yourself, as opening or removing covers may
expose you to dangerous high voltage points or other risks. Refer all servicing to
qualified service personnel.
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