Teletek electronics CA824, Installation Manual, Page: 20 / 32

20 CA824 Installation manual
MRI4/8 input (ZONE) expander module
A zone expander image has been provided in Fig. 13.
MRI4/8 input expander module resources
The zone expander module has four inputs marked as INPUT1…INPUT4. There are eight inputs for the
double zone expander.
The zone expander module has two outputs marked as OUT1 and OUT2. These are programmable
outputs.
The BLACK, GREEN, YELLOW and RED terminals are used to connect the module to the system bus.
Power supply from the +AUX and +PGM control panel is used to supply auxiliary devices (sensors,
relays, etc.).
!The RED and BLACK terminals of the system bus CANNOT BE USED to supply auxiliary de-
vices (sensors, light indicators, relays, etc.). This supply can be controlled by the processing
block at the control panel and can be interrupted!
Technical specifications of MRI4/8 input expander module
Inputs - 4, can be expanded to 8
Outputs - 2
Quad system bus for connecting to control panel – Bus Connection
Consumption - nom 15 mA, max 20 mA
Auxiliary devices power supply (+AUX and +PGM from control panel) - 13,8 V / 2 A
Working temperature - (0°C) to (+50°C)
Inputs module dimensions - 92 x 43 mm
Fig. 13 MRI4/8 input expander
TAMPER LOOP
SERVICE LED