Videotec DTRXDC - Manual (Page 25)

Page. 5 DTRXDC 2900
The multipolar cable of the preset must not be in common with other functions.
cable for digital reception/transmission of commands:
2 wires for reception from control unit (twisted telephone pair, section 0.22 mm² AWG 24)
2 wires for possible transmission to the next receiver in cascade configuration (twisted telephone pair, section 0.22
mm² AWG 24)
Note: the maximum distance of the connection is approx. 15 m in RS232 and 1200 m in RS485.
Installation
The unit must be installed exclusively by skilled technical personnel.
Before carrying out the following operations, if not otherwise stated, always disconnect the unit.
Unpacking
If the packaging does not present evident faults (due to falls or anomalous scratches), make sure that its contents
correspond to the list of items contained in paragraph Contents of the packaging, in section Introduction.
The container is completely made of recyclable material. The installer will take care to dispose it according to the
recycling programs or, in any case, according to the rules in force in the country of destination.
Control of the operating data on the rating plate
Before installing the unit, control if the goods supplied correspond to the required specifications by examining
the rating plates, according to the section Operating data on the rating plate.
Never make alterations or connections not provided for in the present manual: the use of unsuitable devices can lead
to serious risks for the safety of the personnel and the security of the plant.
Dip-switches and Configuration jumpers
In the following picture identify Dip switches and configuration jumpers