Instruction manual

Designing and Planning an M2150 System
Access Control Design Guide 19
ENC-1L
The ENC-1L is available only for certain markets. It can contain a 32Vac power supply unit (MN-PSU-2+2),
two 12Vdc backup batteries and the following:
• One 8DBC, 4DBC, 2DBC, 4DCN, 4DC, AC24/4 or OC4/24
• One or two 2DCs.
ENC-1
The ENC-1 can contain any of the following, with a 3.0A (MN-PSU-KIT; 7000-5283) 12Vdc power supply
unit:
• One ENVS, 8DBC, 4DBC, 2DBC, 4DCN, 4DC, AC24/4 or OC4/24
• One or two 2DCs.
RAK3
The RAK3 is a 19" 2U enclosure that can contain any of the following, with a built-in 3.5A 12Vdc power
supply (100 to 240 Vac input):
• DBU, optionally with any one of the following: AC24/4, OC4/24, 4DC or 2DC.
• One, or any two of the following: 4DC, AC24/4 or OC4/24 (insufficient height for ENVS).
• One or two 2DCs.
• Any one of the following: 8DBC, 8DC, 4DBC or 2DBC.
Elevator Node Cabinet
The cabinet used for an elevator node contains the following:
• DBU (master unit only).
• Elevator Interface Board (master and slave versions are different).
• One or two relay boards.
• 3.0A 12Vdc power supply unit (MN-PSU-KIT; 7000-5283).
• NIC-4 (master unit only).
Batteries
All standard cabinets except the RAK3 have space for a 12V 7AH maintenance-free rechargeable battery,
which maintains operation if normal power is disconnected. Determine whether the building has its own
Uninterruptible Power Supply (UPS) system, and whether that can be used. If not, make sure that a battery
is ordered for each cabinet. The MN-PSU-2+2 contains two batteries.
An on-board battery on the database unit ensures that card and system data are not lost in the event of a
battery failure. A bit switch must be set to ON to connect the on-board battery.