TECHNICAL
Power required for remote OLT
For our sample 100,000 home system, we will look at 10 Cabinets of Centralised Remote PON, 400 Node PON units at 64 homes per PON, and 200 Node PON units at 128 homes per PON. This is what we can expect for annual electricity cost:
Electricity $/kWh Cabinet
Node PON 64 homes
Node PON 128 homes
$0.10 $0.15 $0.20 $0.25 $0.30 $0.10 $0.15 $0.20 $0.25 $0.30
$19,710 $29,565 $39,420 $49,275 $59,130
$65,700 $98,550 $131,400 $164,250 $197,100
$32,850 $49,275 $65,700 $82,125 $98,550
Cost per Home
$0.20 $0.30 $0.39 $0.49 $0.59
$0.66 $0.99 $1.31 $1.64 $1.97
$0.33 $0.49 $0.66 $0.82 $0.99
Battery maintenance
In the case of the cabinet or shelter-based PON, there are only up to 10 sites with which to be concerned. This is a small battery maintenance consideration. We will budget $20K/year for our sample system, or $0.20 per customer. For the Node PON with conventional four 64 home PONs per unit, or 250 homes per housing, we can estimate battery maintenance as follows:
NodePON Battery Repl. Years
4 years
64 Home PON
600 120
units
unit cost unit labor
$72,000 $300,000 $372,000
50
Total
Total per home
$3.72
And for higher split-ratio deployments leveraging four 128 home PONs per unit, or 500 homes per housing:
128 Home PON
300 120 500
units
unit cost unit labor
$36,000 $150,000 $186,000
Total
Total per home
$1.86
100
Volume 47 No.1 MARCH 2025
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