touching, any exposed part of the body (particularly face and eyes).
• Do not install the device in areas where the atmosphere is potentially explosive.
• Wireless devices can cause interference in other devices. Do not use the device in areas where medical equip-
ment is installed.
2.1.4 Connecting the WLAN antenna
The Teldat H2 RAIL Lite has N connectors to connect up to 2 WLAN (Wi-Fi) antennas in the models that have this
interface.
Since the device does not have internal antennas, installing them is essential to improve the quality of the signal re-
ceived and transmitted by the Wireless LAN module.
The cable used to connect the antennas must be valid for RF signal communications of up to 2.4 GHz (5.7 GHz for
802.11a) frequencies and a 50 Ohm impedance. Please note that the quality and the length of the antenna cable
(loss) may have an impact on the quality of the RF signals transmitted and received and, consequently, on device
coverage and the speed at which the data is exchanged.
For the Wireless WAN interface to be operative, the device must have the corresponding software license incorpor-
ated.
The following image shows you where to find the antenna connectors for the WLAN modules.
Fig. 6:
Antenna connectors for WLAN
2.1.5 Connecting the GPS antenna
The Teldat H2 RAIL Lite router has an FME connector to connect an active GPS antenna in the models equipped
with this interface.
Since the device does not have internal antennas, installing an active 3.3V external antenna in Teldat H2 RAIL Lite
routers is essential to improve the quality of the signal received by the GPS module.
The cable used to connect the antennas must be valid for RF signal communications of up to 1.5 GHz frequencies
and a 50 Ohm impedance. Please note that the quality and the length of the antenna cable (loss) may have an im-
pact on the quality of the RF signals received and, consequently, on the accuracy and speed at which the position is
obtained.
The following image shows you where to find the antenna connector for the GPS module.
Fig. 7:
Antenna connector for GPS
2.1.6 Configuration connection
2.1.6.1 Configuring through the local console (AUX connector)
The Teldat H2 RAIL Lite router has a DB9 female connector on the front panel known as “ AUX.”, which provides ac-
cess to the device’s local console or may operate as an asynchronous serial port. The behavior or functionality of this
interface must be previously configured. By default, this interface is configured in local console mode. This section
focuses on the connection for the local console mode.
To configure this, you must connect the “ AUX.” port to an asynchronous terminal (or to a PC with terminal emula-
Teldat S.A.
2 Installation
Teldat H2 RAIL Lite
7