Brunata Optuna H
UK-QB101575/29.05.2012
Installation Guide
Pages 8/16
Brunata a/s · Vesterlundvej 14 · 2730 Herlev · tlf. +45 77 77 70 00 · fax +45 77 77 70 01 · [email protected] · www.brunata.dk
4.1 Installation of modules
1.
Open the integrator by releasing the side catches.
2.
Engage the module in the relevant slot and carefully connect the pre-formed ribbon cable at both ends.
3.
Close the lid and check the meter for correct operation by pressing the push button. Renew the seal of the
housing lid if the meter functions correctly.
4.2 Communication modules
The meter supports two communication channels over the same or different interfaces. An additional communication
module can be used in radio operation. The protocol is different for each of the two channels and is preset ex works,
but can be set to customer-specific requirements using the IZAR@Set software. Each channel has its own primary
address, but only one secondary address exists, which is set to the serial number ex works.
4.2.1 M-Bus
The M-Bus communication module is a serial interface for communication with external devices (M-Bus control
centre), e.g. IZAR@CENTER. A number of meters can be connected to a control centre. The module contains a 2-pole
terminal strip with terminals marked 24, 25.
The connection is not polarity-conscious and is electrically isolated
M-Bus protocol to EN 1434-3 standard
300 or 2400 bauds (auto baud detect)
Connection for 2 x 2.5 mm² wires
Current drawn: one M-Bus load
Test output
Slot 1
Slot 2
Attention!
Keep free at radio
version
