NEC DS2000 Load Factor Calculation

The combination of trunks, extensions, 2-OPX Modules and DSS Consoles you can connect to your DS2000 system may be limited by the System Load Factor.

Print the chart above to calculate your system’s power needs. When entering data on the chart, for each installed item, make entries for each of the two Load Types: 5 VDC and 40 VDC.

To check your system configuration:
1. Indicate the quantity for each PCB, DSS Console, and 2-OPX Module installed in the Qty column. The number of phones does not affect the System Load Factor. Neither does IntraMail.
2. For each item for each Load Type, multiply the Qty times the Load and enter the value in the Total column. For example, two 16DSTU PCBs have a load of 6 for 5 VDC and 40 for 40 VDC.
3. Add up the entries in each Total column and enter the values in Item 1: Load Type Totals.
4. Review Item 2: Power Supply Capacity, and determine the capacity of the power supplies selected for your system.
5. Compare the capacities in Item 2 to your entries in Item 1. Item 1 must always be equal to or less than the entry in Item 2.

!! Important !!
Do not operate your system if the total for either Load Type exceeds the Power Supply Capacity of your installation.