DOMIQ/Base
DOMIQ/Base is the foundation of the DOMIQ system.
It is designed to be installed in the installation closet on the 35mm DIN rail. It is recom-
mended to leave additional space for two 2T modules for optional extensions. Before in-
stallation on DIN rail please push lock on the bottom of the module.
Connections
Module should be connected to the installation in
following order:
•Nneutral wire
•Lphase wire, 230V 50Hz
•DLCN data wire
Although typical voltages on LCN data wire are
between -30 to +30V, it should be treated like
phase wire.
Warning! It is critical to connect correctly phase
and neutral wire. In case of wrong connection
module will work, but no communication with LCN
bus will be possible due to wrong voltage
reference.
ISP connector is used for manufacturer test and
programming purposes. It should not be touched
or shorted, as such actions might lead to transient
errors in the module operations.
Additional extension modules are connected using EXT connector.
Signaling
Status LEDs are installed on the lower part of the module: ACT (blue), ERR (red), TX (yel-
low), RX (green). After power on, ACT leds on all modules will turn on. Normal operation of
the module can be recognized by quick blinking of the ACT.TX blinks when LCN packet
is transmitted. RX blinks when LCN packet is correctly received. ERR blinks in case of
LCN reception error.
If the LCN interface detects more than 16 collisions in a row while sending a packet, trans-
mitter will be blocked. This is signaled by ERR lighting, and during that time no transmis-
sion is possible. During transmitter block packet are still received. After about 30 seconds
transmitter will be unblocked.
ERR continuous lighting could mean a short circuit on the data line. If the ERR still is lit
even when the data line is not connected, it could signal internal fault of the LCN bus
interface.
Installation Leaflet www.domiq.pl
© DOMIQ 2011 Page 1 of 4 IM-BL-EN-110707
