Electrical Connections - AERMEC VMF-E3 Manual De Uso Y Instalación

6.

ELECTRICAL CONNECTIONS

WARNING: the VMF-E3 is supplied with an interface cable with a 4-pin connector and the relative screw terminals; this cable should be used if the acces-
sory is to be connected to thermostat boards that have no screw terminals for the serial connection.
The electrical connections can be accessed from the back of the accessory. No tool is required.
Just connect the cables (suitably stripped and twisted) following these indications:
4~5mm
To disconnect the cables from the VMF-E3 ac-
cessory, proceed as follows:
VMF-E3
Tx-Rx
+5V DC
Tx-Rx_Mode
GND
VMF-E3
Tx-Rx
+5V DC
Tx-Rx_Mode
GND
+
Interface cable
(supplied)
Colours of the terminals for the interface cable
Brown
Green
Yellow
White
MAX 30m
connection Ø: 18-24AWG (0.8-0.2mm
Tx-Rx
+
Tx-Rx_Mode
GND
Thermostat board
with 4-pin connector
Tx-Rx
GND
Tx-Rx_mode
+5V DC
Thermostat board
with screw terminals
)
2
+5V DC