Black Box Industrial SFP/SFP Multi-Power Mode Converter Manual De Usuario

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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.