Installation 4-9Octel Overture 200/300 Serenade 3.0PB60014–01Table 4-2 Input Power RequirementsComponent Power Consumption (watts)Octel Overture 200 Octel Overture 300Base cabinet 125 1504-port line card 10 108-port line card 15 1516-port line card 15 15Fax Application Processor 30 30LAN card 20 20Voice/system disk drive 25 25Works for Serenade disk 20 20EntryWorks ACP card 20 20 The base cabinet includes VCU, CPU, floppy-disk drive, fans, and PSU. All voice/system diskdrives require the same amount of power, regardless of their storage capacity.The following example for an Octel Overture 300 message server shows the calculation of the inputpower requirements for an 8-port message server, equipped with two 4-port line cards, one integrationcard, and two voice/system disk drives:Base cabinet 150 WTwo 4-port line cards 20 WOne integration card 10 WTwo voice/system disk drives 50 WTotal input power 230 WTotal volt-ampere rating (1.5 x 230) 345 VARound the total-input power value and the total volt-ampere rating up to the next multiple of 50,producing the values to be used to select a suitable power source:Total continuous input power requirement is 250 watts and 350 VAIsolation TransformerFor installation sites that could experience power-line transients from lightning or power switching, theuse of an isolation transformer is recommended. A dedicated isolation transformer must be rated at thefollowing: 750 VA or greater is required for the Octel Overture 200. 1 kVA or greater is required for the Octel Overture 300.Contact Octel for isolation transformers that have been tested and qualified for use with Octel Overture200/300.
