MCT88M-IO Operating Manual.doc
2019-03-06
11/20
NC
REL relay output (NC)
COM
REL relay common terminal
B
RS485 bus, line B
A
RS485 bus, line A
GND
Ground
+12V
12VDC power supply
1,2,3,4,5,6,7,8
Ethernet port
Fig. 16 Back panel
Installation guidelines
The terminal should be mounted on a vertical structure (wall) away from sources of heat and
moisture.
The back panel should be mounted with included screws according to fig. 16 in such way as the
tamper lever would firmly press the tamper switch.
All electrical connections should be done with disconnected power supply.
If the terminal and controller are not supplied from the same PSU then GND terminals of both
devices must be connected with any wire.
Clean front panel regularly by means of wet cloth and mild detergent. Do not clean by means of
abrasive materials and strong cleaners like alcohols, solvents, etc. Damages to screen surface are
beyond the scope of warranty.
3.
O
PERATION SCENARIOS
Access, T&A and building automation terminal
The MCT88M-IO terminal when connected to MC16 access controller can be at the same time used for
access control, Time&Attendance and building automation functionalities. The example of connection
diagram for such scenario is shown in fig. 17 where the terminal
’s power supply line and RS485 bus are
connected directly to the controller and relay outputs of MCX8 expander are used to control building
automation. Alternatively the communication with MC16 access controller can be provided via MCX16-RS
expander (fig. 3). The terminal can also operate with MC16 controller using MCX2D/MCX4D expanders as
in case of M16-PAC-x-KIT series.
