How To Insert The Termination Resistance In The Dcir Remote Control Base; Dcir Connection To Peripheral Units - Videotec DCIR Manuel D'instructions

How to insert the termination resistance in the DCIR remote control base

The termination resistance on the RS485 to the telemetry can be connected via a dip-switch placed inside the
base.
Disconnect the base from the system; remove the bottom side by unscrewing the three screws.
Operating on the dip no.1 of the SW1 dip-switch, it is possible to connect the termination resistance as the
following scheme:
•
Dip 1 off: resistance not connected
•
Dip 1 on: resistance connected (default)
After these operations close the base and connect it to the system.
Refer to the scheme at page 5 for the dip-switch identification.

DCIR connection to peripheral units

The DCIR remote control base and the SM42A / SM82A / SM84A / SM164A / LXRPS42A / LXRPS82A /
LXRPS42TA / LXRPS82TA / LXRPS84A / LXRPS164A matrix can be connected together by 6-pole telephone
cable with RJ11 plug, for a laboratory check of the devices functioning.
Connection DCIR - SM42A / SM82A / SM84A / SM164A / LXRPS42A / LXRPS82A / LXRPS42TA /
LXRPS82TA / LXRPS84A / LXRPS164A unit
For longer distances, RJ wall connector boxes are used; these can be connected by 4-pole cable, according to
the following table (Table 1):
Note: The termination resistance for the RS485 line to the matrix is always inserted and does not need
modifications. Connection RS485: max. distance 1200m. Power supply connection (+12V
distance 700 m. For longer distances the use of a local power supply is recommended.
VIDEO
DCIR (RJ-Jack)
TX-485A White
TX-485B Yellow
=
+12V Green
GND Red
Table 1
Pag. 7
MATRIX
---- Blue RX-485A
---- Black RX-485B
----
=
Red +12V
---- Green GND
DCIR
=
and GND): max.
DCIR_4402