Power Consumption Calculation For Ethernet Modules - Avaya 8800 Installation Manual

Avaya Ethernet Routing Switch 8800/8600 module fundamentals
SFP+ transceivers, in general, consume less power than most long and extended range XFP
transceivers. For example, a module with extended-range (ER) SFP+ transceivers consumes
less power than the same module replaced with extended-range (ER) XFPs.

Power consumption calculation for Ethernet modules

To calculate the power consumption of Ethernet modules (R/RS/8800 modules) with installed
medium or long-range optical devices, you can use the power specifications for the module
with short-range devices, along with the following data:
Caution:
For instances where you install a significant number of long-range SFPs, SFP+s and XFPs,
you must ensure that you have sufficient power available to power these optical devices.
• 1000BASE-LX, 1000BASE-BX, 1000BASE-XD CWDM, 1000BASE-ZD CWDM,
1000BASE-EX SFPs
Short-range (SR) SFPs consume 0.85 W for each transceiver.
For 1000BASE-LX, 1000BASE-BX, 1000BASE-XD CWDM, 1000BASE-ZD CWDM: add
0.15 W for each SFP
For 1000BASE-EX: add 0.40 W for each SFP
• 10GBASE-LR, 10GBASE-LRM and 10GBASE-ER enhanced SFPs (SFP+)
All SFP+ transceivers have a power consumption of 2.5 W (1 W for each port and an
additional 1.5 W for each installed transceiver). There is no difference in power
consumption between short and medium/long/extended range SFP+s.
• 10GBASE-LR, 10GBASE-LRM, and 10GBASE-ER XFPs
Short range XFPs consume 2.5 W for each transceiver.
For 10GBASE-LR/LRM; add 1 W for each installed XFP
For 10GBASE-ER; add 2 W for each installed XFP
For example, if you use two 10GBASE-ER XFPs in a 8612XLRS module that otherwise has
two 10BASE-SR XFPs, add 2*2 W to 257.9 W for a total of 261.9 W.
You can also calculate chassis and module power consumption using the Power Management
Calculator Avaya ERS 8800/8600 Power Management Calculator, (NN48500-519), available
on the Avaya Technical Support Web site. You can find the calculator at
support with the rest of the ERS 8800/8600 documentation.
60 Installation — Modules
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October 2014