Instruction manual

Designing and Planning an M2150 System
18 Access Control Design Guide
Choosing the Cabinets
This section explains the standard cabinets/enclosures available for M2150 systems.
There are two main cabinet types: ones that have a hinged door (CAB3A, CAB4A and CAB5 ), and others
that have a removable lid (ENC-1, ENC3 and ENC4). There is also a RAK3, which is a 19" rack-mountable
cabinet.
Note: Only the CAB3A and CAB4A can be used for installations that require compliance with UL294.
If required, the hinged door on the CAB3A, CAB4A and CAB5 can be removed to make it easier to mount
the cabinet and connect the terminal blocks.
Appendix C gives cabinet dimensions. The cabinet installation instructions show the cabinet and board
mounting positions.
Cable knock-outs are provided along the sides and back of each cabinet. To protect against sharp edges,
a rubber grommet (gland) needs to be fitted to each hole. These are not supplied with the equipment and
therefore must be provided separately. The main power supply cable must use a separate hole from all
other cables.
ENC3/CAB3A
The ENC3 and CAB3A can contain any of the following, with a 6.5A (MN-PSU-6A) or 3.0A (MN-PSU-KIT;
7000-5283) 12Vdc power supply unit:
• DBU, optionally with any one of the following: AC24/4, OC4/24, 4DC or 2DC.
• One, or any two of the following: 2DC, 4DC, AC24/4, OC4/24 or ENVS.
• Any one of the following: 8DBC, 8DC, 4DBC or 2DBC.
ENC4/CAB4A
The ENC4 and CAB4A can contain any of the following, with a 6.5A (MN-PSU-6A) or 3.0A (MN-PSU-KIT;
7000-5283) 12Vdc power supply unit:
• DBU, optionally with one or any two of the following: AC24/4, OC4/24, 4DC, 2DC or ENVS.
• 8DBC, 8DC, 4DBC or 2DBC, optionally with any one of the following: AC24/4, OC4/24, 4DC or
ENVS.
• One 4DC, AC24/4 or OC4/24, optionally with up to two 2DCs.
CAB5
The CAB5 can contain the following, with a 6.5A (MN-PSU-6A) 12Vdc power supply unit:
• One, or any two of the following: 8DBC or 8DC.