Instructions

The device must be connected to a power circuit that is protected with gL fuses (IEC 269) or
M fuses, with a rating of 0.5 to 2 A. It must be tted with a circuit breaker switch or equivalent
device for disconnecting the device from the power supply mains.
The RCCB or equivalent device must be in the immediate vicinity of the device and must be
easily accessible.
The power circuit is connected with a cable with a section measuring up to 2.5 mm
2
.
The RS-485 connector enables cables of up to 1.5 mm
2
to be inserted.
The device's operating temperature is between -25ºC and +70ºC; always use
connection cables that can withstand these temperatures.
3.3.- DEVICE TERMINALS
Table 2:List of CEM M-RS485 terminals�
Device terminals
1: Auxiliary power supply. 3: A(+), RS-485
2: Auxiliary power supply. 4: B(-), RS-485
1 2
3 4
Figure 3:CEM M-RS485 terminals�
9
Instruction Manual
CEM M-RS485