DIN rail mounting
The unit clips onto a DIN rail. Use the clip on the underside to fit or release it. For safety, a DIN rail enclosure must cover all terminals.
Connecting to MBus
Caution: The CMeX10 series handles from 32 to 256 slaves, so make sure you use the right model. Overloading the bus turns the ERR LED on and switches the MBus off.
Note: Every connected MBus slave needs a unique primary or secondary address, depending on the addressing mode.
MBus is a two wire bus with no polarity.
- Use cable of 0.25 to 1.5 mm2, for example standard telephone cable (EKKX 2x2x0.5).
- Connect the wiring to the screw connector or the push wire connector.
Caution: On the S models do not exceed 5000 m of cable. On CMeX10 and CMeX11 the limit is 1000 m.
Using the IR interface
The IR interface lets Elvaco MBus masters, wireless MBus receivers (CMeX series) and ABB electricity meters communicate with a CMe gateway with no cabling. Mount the units side by side with their IR windows facing each other, and remove the IR shield first.
Using the RS232 interface
On the S models the RS232 interface lets the unit act as an MBus master from RS232 to MBus 2 wire.
- Connect the RS232 interface to the RJ45 connector.
Connecting the power supply
Warning: Installation must be carried out by a qualified electrician or another suitably skilled professional.
- Connect mains to the screw terminals marked N and L. The supply must be 100 to 240 VAC, 50/60 Hz.
- Fit a clearly marked, easily reached switch so the unit can be isolated for service.
- If an earth is available, connect it to the earth terminal.