CARLO GAVAZZI VMU-C EM, Instruction Manual

Page: 28 / 126

VMU-C
VMU-C Instruction manual 28
3.1.7 THE VMU-W MODEM
3.1.7.1 INSTALLING AND CONFIGURING THE VMU-W MODEM
Connecting the VMU-W module
To connect the Modem (VMU-W) to VMU-C you will have to perform the following steps:

Make sure the VMU-C and the VMU-W are not powered.

Connect the VMU-W to the VMU-C through the auxiliary bus on the left side of
the VMU-C.

Make sure the SIM is not protected by a PIN code (should that be the case,
disable the protection).

Insert the SIM into the VMU-W modem through the special slot.

Connect the antenna and put it in a place assuring proper signal reception.

Restore the power supply of both devices (VMU-C and VMU-W).

Make sure that both devices are located in a dry place, protected against rain and dust.
On the front side of VMU-W there are two LEDs, whose meaning is the following:
1) Green LED:
Steadily on => the equipment is powered.
2) Blue LED: Off => no power supply. Fast blinking => searching for the cover
signal / not registered / switching off. Slow blinking => Service is registered
and signal is available. Steadily on => communication under way.
VMU-W modem