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built templateaccess-controlwith-tool

Access Controller Sizing

Calculates a reduced access control system sizing case from door count, controller capacity, per-door device currents, controller current, power supply capacity, and backup duration. The template reports controller count, current demand, supply count, and battery capacity.

inputs

9 fields

context

2 archetypes

engine

with-tool

outputs

5 scored fields

contract fields

Parameter Map

9 inputs to 5 scored outputs

  • door_count

    float

    Number of controlled doors

    1 to 500count

  • doors_per_controller

    float

    Controller door capacity

    1 to 16doors/controller

  • reader_current_ma_per_door

    float

    Reader current per controlled door

    0 to 1000mA

  • lock_current_ma_per_door

    float

    Electric lock current per controlled door

    0 to 3000mA

  • request_to_exit_current_ma_per_door

    float

    Request-to-exit device current per controlled door

    0 to 1000mA

  • controller_current_ma

    float

    Current draw per access controller

    0 to 3000mA

  • power_supply_capacity_a

    float

    Usable current capacity per power supply

    0.5 to 50A

  • backup_duration_h

    float

    Required backup battery duration

    0.5 to 72h

  • battery_derating_factor

    floathidden in hard

    Battery derating factor applied to backup capacity

    0.4 to 1-
controllers_requiredtol 0.01

Number of access controllers required

door_device_load_atol 0.03

Total current for door devices

total_system_load_atol 0.03

Total access control system current

power_supplies_requiredtol 0.01

Number of power supplies required

battery_capacity_ahtol 0.03

Required battery capacity

visibility contract

Difficulty Ladder

all_giveneasy

Small office access control with all values visible

all fields visible
all_givenmedium

Access control case selected from office or campus systems

all fields visible
partialhard

Campus access control with battery derating embedded in context

battery_derating_factor

scenario bands

Archetype Atlas

small_office_access

2 contexts

Small office access control system

door_count2 to 20
doors_per_controller2 to 8
reader_current_ma_per_door80 to 250
lock_current_ma_per_door250 to 900

office-security / access-control

campus_access

2 contexts

Campus access control system

door_count20 to 200
doors_per_controller4 to 16
reader_current_ma_per_door100 to 300
lock_current_ma_per_door300 to 1200

campus-security / access-control

rendered task

Generation Preview

campus-security-campus-access-preview

difficulty
hard
visibility
partial
archetype
campus_access
site context
campus-security
instruction excerptaccess-controller-sizing_calc.py

visible fields

  • door_count20 to 200 count
  • doors_per_controller4 to 16 doors/controller
  • reader_current_ma_per_door100 to 300 mA
  • lock_current_ma_per_door300 to 1200 mA
  • request_to_exit_current_ma_per_door20 to 200 mA
  • controller_current_ma250 to 1000 mA
  • power_supply_capacity_a5 to 30 A
  • backup_duration_h4 to 24 h

withheld schema

battery_derating_factorcontrollers_requireddoor_device_load_atotal_system_load_apower_supplies_requiredbattery_capacity_ah
Campus access control system. campus-security. Required outputs: controllers_required, door_device_load_a, total_system_load_a, power_supplies_required, battery_capacity_ah