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Chapter 3: Install the Industrial SFP/SFP Multi-Power Mode Converter
Page 10 724-746-5500 | blackbox.com LGC300A-R2
3.4 DC Power Supply Precautions
The following precautions must be observed when installing the chassis
model with an internal DC power supply.
1. Check nameplate ratings to ensure there is no overloading of supply
circuits that could effect overcurrent protection and supply wiring.
2. In addition, the following must be observed:
a. Connect the equipment to a 35 to 50 VDC power source that is
electrically isolated from the alternating current source. The 35 to 50
VDC power source is connected to a SELV DC source.
b. Route input wiring to terminal block and secure in such a manner
that it is protected from damage and stress. Do not route wiring past
sharp edges or moving parts.
c. Incorporate a readily accessible disconnect device, with a 3mm
minimum contact gap in the fixed wiring.
3. Reliable Grounding of this equipment must be maintained. Particular
attention should be given to supply connections when connecting to
power strips, rather than direct connections to the branch circuit.