CHAPTER 2
INSTALLATION
2-2
DC-24 and DC-25 operation manual
2.3.
Serial line connection.
The displays of the series
DC-24X
and
DC-25X
admit connection through the RS-485 line.
The connection must be done using a DB9 connector placed in the interior of the display
The connection schematic is the one that follows
2.4.
Placing the sensor.
The temperature and humidity sensor is placed in a black nylon part, protected by a cap that
permits the humidity to pass through but not water. The connexion cable enters through a gland.
The set must not be manipulated to keep the IP65 sealing.
In the displays with more than one sensor, there is no order or priority. There can be
connected between 1 and 5 sensors in any of the connectors. The display detects the sensor
when powering on the display.
The temperature and humidity sensor should be placed at 1,7m high from the floor. Due
to the fact that the display is expected to be in crowded places, it is recommended to protect the
cable of the sensor using a tube.
1
2
3
4
5
6
7
8
9
A
B
RS-485
DB9
Plug
Slot for mounting on support
