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Chapter 3: Install the Industrial SFP/SFP Multi-Power Mode Converter
LGC300A-R2 724-746-5500 | blackbox.com Page 9
• User supplied LPS DC power via a four-position DC power block.
• Power from an Power Tray 18-Slot DC
For extended temperature operation the DC terminal block must be used
because the supplied AC to DC converter is not rated for extended
temperature operation. The power source used with the DC terminal block
should be a Limited Power Source (LPS).
3.3.1 DC Terminal Block Option
The Industrial SFP/SFP DC power option includes a 7 VDC to 50 VDC
terminal block and a standard +5 VDC mini-jack. The DC terminal block has
multiple DC inputs intended for cascading DC power to an adjacent unit.
Connect the power source to any one positive and one negative terminal on
the Industrial SFP/SFP.
NOTE
When using stranded wire, the leads must be tinned. The chassis is not protected
against mis-wiring; if mis-wired the chassis will not function. The chassis is internally
connected to the negative power terminal.
3.3.2 Cascading DC Power
If installing multiple Industrial SFP/SFPs on a
DIN rail, you can use one DC input source
and then cascade from one DC terminal
block to the next, until reaching the
maximum electrical current available.