This is in response to your question on powering with no disrespect to any and all comments left.
The Philips equipment has a worst case amperage draw according to voltage:
6-GNA297-48....... @ 44V..... 1.8 amps @60V...... 1.2 amps
6-LE97-31....... @43V...... .59 amps @60V...... .54 amps
750mc2 loop resistance .73 ohms per 1,000 feet ------------ 750P3 loop .76 per 1,000 feet <<<< use per foot for calculations .00073 and .00076 respectfully >>>>
500mc2 loop resistance 1.57 ohms per 1,000 feet ----------- 500P3 loop 1.72 per 1,000 feet <<<< use per foot for calculations .00157 and .00172 reseckfully >>>>
First step is to determine what actives are on a given power supply, what type of cable feeds to each active, and what is the distance from active to active. You can total all actives on one side of supply to get what amperage draw you have then do the other side of the supply. Do you have a 90 volt supply with max 15 amp load? You may find your voltage for all actives would be fine but you run out of voltage due to long runs. Or possibly you have a high dense area with allot of actives so voltage is fine but your amperage draw just blew your supply. We use to do rough calcs with a simple everyday calculator. With the computer and software, powering is done as we do design. I would gladly answer any questions in more detail via email or phone. Our URL www.acdpa.com if you need to get contact information.
Hope this helps and doesn't muddy the waters.... Could be more precise with calcs but not enough time to type it here.
