MC16 Operating Manual 09.01.2020
1. DESIGN AND APPLICATION
MC16 is access and building automation controller dedicated to RACS 5 system. The controller is offered in
multiple versions and its functionalities are determined by license file on its memory card. The MC16 is
offered as hardware module, controller or as an element of MC16-PAC-KIT which facilitates the installation
and design of RACS 5 system. After the connection of MCT readers and MCX expanders, the controller can
be applied in access control, Time&Attendance, hotel and building automation. The MC16 can control
doors, elevators, lockers (cabinets) and car parks. The controller offers advanced and efficient methods for
management of users and their authorisations (rights). The configuration of controllers in a system is
performed concurrently via LAN/WAN and the total number of controllers does not affect configuration time.
The controller is managed with VISO software which enables operation with local Microsoft SQL Server
Compact database or centralized Microsoft SQL Server database. The system can be managed from
multiple workstations with VISO software by operators with various rights. The communication with MC16
controllers in LAN/WAN is encrypted according to AES128 CBC.
Characteristics
Access controller in RACS 5 system
8 parametric EOL inputs
6 transistor outputs 15VDC/150mA
2 relay outputs 30V/1,5A DC/AC
18VAC, 12VDC and 24VDC power supply
Built-in 12VDC/1,2A power supply unit
Backup battery charging and monitoring
Ethernet communication interface
Encrypted data transmission (AES128 CBC)
Peripheral devices interfaces: RS485, RACS CLK/DTA, Wiegand
8 million event buffer on memory card
Power supply
MC16 controller can be supplied from 230VAC/18VAC transformer with minimal power output 20VA, from
12VDC PSU or from 24VDC PSU. The connection of power supply is shown in fig. 1.
If MC16 controller is supplied with 18VAC or 24VDC, then 12V backup battery can be connected in order to
provide power supply in case of mains supply shortage.
The controller charges backup battery with 300 mA stabilized current up to 13.8V. Backup power supply is
activated automatically in case of main powers supply shortage. If the voltage at backup battery drops below
approx. 10V then the battery is automatically disconnected from MC16 and remains disconnected until
mains power supply returning.
In case of 12VDC power supply, backup battery cannot be directly connected to MC16 and in such case
backup power supply must be provided by 12VDC power supply unit. In case of maximal load at supply
outputs AUX (1A) and TML (0.2A), the controller requires 20W power.
Note: It is recommended to install MC16-PAC controllers within MC16-PAC-KITs which include power
supplies for the controller and door devices. More information on kits power supply is given in their manuals.
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