ICentral System One M200 Installation Manual - page 42
38
38
The fitting of an Auxiliary Output Board to the System One intercom allows devices such as door
strikes, automatic gates, courtesy lights etc. to be controlled from the Master or any Room Station.
Each Output Board provides two sets of "normally open" and "normally closed" dry relay contacts
(RELAY 1 and RELAY 2).
The outputs can be set to toggle on and off with each activation, or time out after being activated,
by means of bridging the appropriate jumper pins (M1 and M2).
The timeout duration can be adjusted from 1 to 45 seconds by means of adjustable trim pots
(VR1 and VR2).
The timeout duration can be extended up to approximately 10 minutes by adding a 330uF low
leakage electrolytic capacitor to position C2 for output 1 and position C8 for output 2.
The outputs are activated by pressing the AUX key on the intercom, followed by the
programmed number of the output to be activated.
DIP switches, are used to set the number that the output will respond to. Output 1 can be set to
respond to numbers 1, 3, 5 or 7 using DIP Switch 1 (DS1). Output 2 can be set to respond to
numbers 2, 4, 6 or LOCK using DIP Switch 2 (DS2).
The board can be attached to the rear of any Room Station and is connected to the main board of the
Room Station by means of a 4way Lead.
Note: M200 and M250 masters come already equipped with 2 auxiliary output circuits and as such the Auxiliary Output
board is intended primarily for systems that are not fitted with a master.
The relay contacts on an Auxiliary Output Board act as a switch and do not output any voltage on their own.
For this feature to operate from all stations, the “AUX terminal at each station must be interconnected.
WARNING: This board is not designed to switch HIGH VOLTAGE directly. A separate suitable relay can be
used in
conjunction with this board where the switching of High Voltage is required.