
MCT12M Operating Manual 09.07.2020
RS485 bus
The communication method with MC16 access controller is provided with RS485 bus which can encompass
up to 16 devices of RACS 5 system, each with unique address in range of 100-115. The bus topology can
be freely arranged as star, tree or any combination of them except for loop. The matching resistors
(terminators) connected at the ends of transmitting lines are not required. In most cases communication
works with any cable type (standard telephone cable, shielded or unshielded twisted pair etc.) but the
recommended cable is unshielded twisted pair (U/UTP cat.5). Shielded cables should be limited to
installations subject to strong electromagnetic interferences. The RS485 communication standard used in
the RACS 5 system guarantees proper communication in a distance of up to 1200 meters as well as high
resistance to interferences.
Note: Do not use more than single pair in UTP cable for RS485 communication bus.
Keypad
Except for –BK versions, terminals are equipped with numeric keypad and backlight. The keypad can be
used for user identification with PIN and for various keypad commands. By default, the key [#] is used for
PIN confirming.
Function keys
Except for –BK versions, terminals are equipped with two function keys [F1] and [F2]. Various functions can
be assigned to these keys within high level configuration (VISO) e.g. door bell, Set T&A Mode, Register
Guard Tour Event, Set Automation Node On, etc. Within low level configuration (RogerVDM) of the terminal
it is possible configure if terminal distinguishes short and long key pressings. Consequently each types of
key press can be assigned with different function.
Numeric keypad includes [*] and [#] keys which can be configured as function keys.
LED indicators
Terminals are equipped with three LED indicators which are used to signal integral functions and they can
be additionally programmed with other available functions within high level configuration (VISO).
Default colour of the indicator is red. If the terminal is assigned to
Alarm Zone then the LED indicates zone arming (red) or
disarming (green).
LED indicates access granting.
LED indicates card reading and can signal other system functions
including device malfunction.
Note: Synchronic pulsing of LED indicators signifies lost communication with MC16 controller.
Buzzer
Terminals are equipped with buzzer which is used to signal integral functions and it can be additionally
programmed with other available functions within high level configuration (VISO).
Inputs
Terminals in –IO version e.g. MCT12M-IO offer 3 general purpose parametric inputs of NO, NC,
3EOL/DW/NO and 3EOL/DW/NC type and 1 input internally connected to tamper contact. Input types and
electric parameters such as response time and parametric resistors are defined within low level
configuration (RogerVDM). Input functions are assigned within high level configuration (VISO). Multiple
functions can be assigned to the same input at the same time.