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2
Rx+
3
Tx-
4
Rx-
Note
As the Switch integrated in the device has an automatic MDIX feature, you can use a PIN to PIN cable
in order to connect to another device without having to cross the Tx-Rx pairs.
2.1.2.2 AUX
The Teldat H1 RAIL router family has a DB9 female connector on the front panel labeled AUX. This can be used as
a configuration port for the router or as a V.24 asynchronous serial port by means of a configuration command. The
behavior or functionality of this interface must be previously configured. By default, this interface is configured in the
router’s configuration port mode. This section focuses on the connection to operate in asynchronous port mode.
This interface allows you to connect asynchronous serial devices that do not need hardware control signals. E.g. this
permits the connection of external modems or an asynchronous PPP WAN.
Another interesting feature of this port is the possibility of using it as a GPS data source, in NMEA sentences
(GPS-DATA).
This interface only operates complying with the V24 norm; it does not have control signals, only data signals. There-
fore, this interface cannot control hardware flow. It does, however allow for software flow control (XON/XOFF).
You cannot configure parity in MARK and SPACE modes.
In order to configure this, you need to connect the AUX port to an asynchronous terminal (or to a PC with terminal
emulation).
To use this as a configuration port for the router, please see section
on page 7.
Fig. 4:
AUX Port
2.1.3 Connecting to a WWAN antenna
The Teldat H1 RAIL router has up to 4 N connectors to connect the WWAN antennas (3G).
Name
3G Module
Antenna Function
MOD.1 ANT.1
MD1
Main
MOD.1 ANT.2
MD1
Aux. / diversity
MOD.2 ANT.1
MD2
Main
MOD.2 ANT.2
MD2
Aux. / diversity
The device does not have internal antennas, so the installation of antennas in the Teldat H1 RAIL routers is essen-
tial in order to improve the quality of the signal received and transmitted by the Wireless WAN module (GPRS,
UMTS, HSDPA, HSUPA, HSPA+, LTE, etc.).
The cable used to connect the antennas must be a cable which is valid for RF signal communications of up to 2.6
GHz 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 cover-
Teldat S.A.
2 Installation
Teldat H1 RAIL
5