CCopyright © 2001. Nokia Mobile Phones. All rights reserved.Nokia 6090 technical information 41 IntroductionThis document describes the Nokia 6090 integrated-modem vehicle fixed-mounted GSMphone. It is aimed for companies who need technical information before choosing adevice to be integrated in their vehicles/solution. This document focuses on informationrelated to the Nokia 6090 product. Information related to features supported by itssoftware, e.g. AT commands, can be found in a separate document.Other technical information is confidential but may be passed upon application per e-mailto:6090.ProductSupport@Nokia.comTechnical questions related to the Nokia 6090 can be sent to above-mentioned address.The Nokia 6090 provides internal data functionality. It means that no external device likedata card is necessary to connect a terminal like a PC to the phone.The means to connect the Nokia 6090 to the external device can be as simple as astandard modem cable that is available in computer stores.2 System OverviewThe NOKIA 6090 is a fixed carphone that consists in 3 main units. The GSM transceiveris the main part of the phone; it consists of an 8W GSM-transceiver, the power supply,the handsfree circuit, a SIM-Card reader for a big SIM card, a data interface via D-Sub 9connector (fully implemented EIA/TIA 8 signals RS232), and has an interface to carspecific signals. The handset consists of a large display, a 16 key keyboard with NAVIäkey, an ear speaker, a microphone and an SIM-Reader for a small SIM card. The cradleholds the handset and contains a magnet for Hook On/Off detection in the handset. Formodem applications it is also possible to operate the GSM-transceiver without neither thecradle nor the handset. The product without handset is called Nokia 6090 application kit(You can mention the Nokia product code 063497 to your dealer).The following picture shows a system overview of the Nokia 6090.