Chapter 4 Installing the SIM card
The Teldat H2 Automotive has a Wireless WAN interface that needs one, two or three SIM cards to operate.
There are certain services (CDMA) provided by several carriers in some countries that do not require SIM cards. In
installations where a SIM card is required, you must always insert at least one.
The Teldat H2 Automotive has one internal and two external SIM trays. The external trays are located on the front
and rear panels.
The Teldat H2 Automotive can incorporate one or two Wireless WAN modules, or none at all.
• When it incorporates two modules, the SIM Card on the front panel is assigned to Module 1. The internal SIM card
(SIM Card 2I) and the remaining external SIM card (SIM Card 2), on the rear panel, are assigned to Module 2
since it can manage dual-SIM.
• In devices where there is only one cellular module installed and only one SIM card used, the latter must be placed
in one of the following trays: SIM Card 1 or SIM Card 2.
Having 2 SIM trays allows you to carry out some special configurations. For example, when installing two SIMs, one
can act as backup to the other. To execute this type of configuration, and given that each SIM requires different con-
figuration parameters, you must first define which tray is going to be associated to which SIM.
Warning
This device is compatible with 1.8 V and 3 V SIMs. Do not install SIMs that do not support these
voltages.
Warning
Never install the SIM card when the device is switched on.
Always disconnect the device from the main power supply before inserting the internal SIM.
Always disconnect the device before removing the housing to get to the internal SIM.
When inserting the SIM card, please protect yourself against electrostatic discharges (ESD).
Do not touch the SIM card connectors.
4.1 Identifying the SIM trays
When there are two modules installed, the SIM tray assignment is set and is as follows:
• Module 2 -> SIM Card 2I (internal) and SIM Card 2.
• Module 1 -> SIM Card.
The following figure shows the location of the modules and the SIM trays:
Teldat S.A.
4 Installing the SIM card
Teldat H2 Automotive Router
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