Operating instructions

Building Technologies - 12 - TEL50.GSM

Recommendations for use of fixed or external antenna

You are advised to observe the following recommendations:

• The antenna must be placed at least 2m from any electronic equipment, at least 15cm from any obstacles and in a

position where there is good reception.

• If malfunctioning or interference to the local electrical equipment occurs during use of the TEL50.GSM, reposition the

device / antenna.

• Do not use the stilo antenna if the TEL50.GSM is used in enclosed or particularly shielding environments.

• Use external antennas with characteristics that operate in the GSM Dual Band frequency band (890-960 MHz and 1710-

1880 MHz) with nominal impedance of 50 ohm.

• Do not hold the antenna when the device is in use. This affects the quality of the connection and requires an increase in

transmission power in the TEL50.GSM.

• Do not use the TEL50.GSM if the antenna is damaged. Use of antennas prescribed by SIEMENS SpA. is recommended.

4.5 Insertion of SIM card

The SIM-reader is located in the top of the device and can only be accessed by first removing the plastic cover. When correctly

inserted, the SIM card should be positioned as shown in the figure below.

IMPORTANT: The SIM Card must always be inserted and removed

when there is no power supply. Only reconnect the power supply when

you have finished.

The TEL50.GSM only works with latest generation 3 volt SIM cards. If

you possess an old SIM card, contact your provider who will replace it

with a latest generation one. We recommend using SIM Cards that are

enabled for data traffic.