User's Manual

3.7. Selecting the Antenna

Io200 is terminated by 50Ω; therefore, any antenna terminated by 50Ω will work with Io200. In order to protect the module from

ESD discharge, the selected antenna must be rubber-coated.. Refer to “Antenna Considerations”, page 5.16, for further

information.

You are responsible for selecting a suitable antenna and submitting the final product to the network operator for certification.

3.8. Setting Up a Development Test Environment

A number of development test aids are available to assist in hardware and application development. Modem hardware and an

evaluation board can be purchased from Motorola. The evaluation board is a specially developed circuit board with test points

and jumper switches, which allows for maximum flexibility in accessing and controlling connections into and out of the modem.

Refer to “iO200 Developer’s Kit Manual” for further information. Motorola also provides various software utilities that can help

in performing development tests. Refer to chapter 0, “Testing” for further information.

The network operator may sometimes provide a live development network, supplementing the test environment supported by

Motorola. This development network, on which you can develop and test your application, is separate from the production network.

You must negotiate directly with the network operator for airtime and for building and maintaining a development test

environment at their facility.

3.9. DEVELOPING SUPPORTING APPLICATION SOFTWARE

To develop supporting application software, perform the following steps:

• Select a communications model

• Develop end-to-end application software

3.10. TESTING AND APPROVING THE PRODUCT

To test and approve the product, perform the following steps:

• Perform EMI and desense testing .

• Set up a final test environment

• Install and field-test the product

3.11. Setting Up a Final Test Environment

To ensure correct assembly of the final product (that the antenna is properly connected, the serial port is operational, and so on),

perform an end-to-end test that proves that the final product can receive and transmit at the required signal levels. In locations

where the final assembly test is performed within network coverage area, this test is relatively simple. However, in locations

where network coverage is not available, or for products being shipped to other countries, it is necessary to test by secondary

means.

The final assembly test must verify that all connections to the modem are made correctly. Testing on a network is not required.

3.12. Installing and Field-Testing the

Product

When the product is shipped to a site, it is installed or mounted in a location that may restrict RF communications. It must be

verified whether the behavior of a dysfunctional product is caused by poor coverage or is due to the fact that the network service

Io200

can support an antenna with 0 Ω (in DC).

For 800/900MHz and GPS, the antenna should

be 50

Ω.

Note