32
ASSA ABLOY Hospitality
66 1100 005-11
2.8.2 To power supply a GPIO module
The GPIO module will typically be powered via the
room bus
(power from other
devices on the bus, e.g. the
). In that case no power should be
connected to terminal number 36.
If no power is available from other devices on the bus, the GPIO module must be
connected to a power supply. The voltage may be in the range from 12 to 24VDC.
Connect the positive wire to terminal number 36, and the negative wire to terminal
number 35.
2.8.3 To communicate with a GPIO module
The GPIO module has two communication ports for connecting to the
room
bus
. The two ports are identical. All units on the
room bus
are connected
in a daisy chain ("hand in hand"). If there are only two devices on the bus
(
GPIO module
and
main control unit
OR
GPIO module
and
corridor panel Chic
),
only one port is used. If three or more devices are connected to the bus,
both ports are used.
2.8.3.1 Example 1: Connecting to Chic panel
Figure 58