Ds2000 Load Factor Calculations - NEC DS2000 Hardware Manual

DS2000 Load Factor Calculations

The combination of extensions, Digital Door Boxes, 2-OPX Modules and DSS Consoles you can connect to
your DS2000 system may be limited by the System Load Factor. Use the DS2000 System Load Factor Cal-
culations chart to verify your system's configuration.
To check your system configuration:
1. Indicate the quantity for each item installed in the
2. For each item, multiply the
3. Add all the values in the
4. Determine the System Load Factor capacity of the power supplies installed in your system and enter
the total in
5. Compare the entry in
entry in
Do not operate your system if the System Load Factor total (Item 1) exceeds the
allowable load (Item 2).
16DSTU PCB
4ASTU PCB
8ASTU PCB
110-Button DSS Console
24-Button DSS Console
2-OPX Module
Notes:
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•
•
DS2000 Hardware Manual
System Preparation and Configuration
Qty times the
Total Load
Item 2 .
Item 2 to your entry in
Item 2 .
DS2000 System Load Factor Calculations
Description
Item 2 : If you have one power supply installed, enter 48.
If you have two power supplies installed, enter 80.
If you have three power supplies installed, enter 112.
A 4 slot cabinet can only have 1 power supply.
An 8 slot cabinet can have up to 3 power supplies. You cannot have more than two 16DSTU
PCBs per power supply, regardless of System Load Factor calculations.
Exceeding the System Load Factor will cause the system's power supplies to automatically
shut down and/or erratic system operation.
Qty column.
Load Factor and enter the value in
column and enter the value in
Item 1 . Item 1 must always be equal to or less than the
Load Factor
16
8
12
2
1
Total DSS Consoles installed cannot exceed 4
3
Item 1 : Total load for this configuration
Section 1: Installing the Cabinet
Total Load .
Item 1 .
Qty Total Load
1
1-3