RIM 1802G, Руководство интегратора

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Chapter 6: Interface specification
50 RIM OEM Radio Modem for GSM/GPRS Wireless Networks
RIM 1902G or RIM 1802G interface
The asynchronous serial interface on the RIM 1902G or RIM 1802G operates at 3V, which means that
it is compatible with many existing system designs.
The radio modem can be controlled by a wide variety of microcontrollers and microprocessors, such
as the Intel 8051 or 80386, or Motorola 68000. In most cases, the RIM 1902G or RIM 1802G can be
connected directly to a microcontroller, or through a Universal Asynchronous Receiver/Transmitter
(UART) to a microprocessor data bus. If the radio modem is connected directly to a computer or
other RS-232 device, an interface must be provided to convert the signal voltage to the higher values
required.
The RIM 1902G or RIM 1802G is compliant with GSM Phase 2/2+ specifications. For detailed
information on the AT command structure, refer to the
AT Command Reference Guide , which is
included in the Integrator Kit.
AT Commands
Command Description
V.25ter The V.25ter commands correspond to the basic commands of AT Hayes-compatible modems
applicable for GSM 07.07. These commands include answering incoming calls, switching
modes, and redialing.
GSM 07.07 The GSM 07.07 commands are used to remotely control GSM functionality, including phone
book functionality. These commands include selecting bearer service types, entering PINs,
and changing passwords.
GSM 07.05 for SMS The GSM 07.05 commands are used to perform operations related to short message service
(SMS) and and cell broadcast service (CBS) for both text and protocol data unit (PDU) modes.
These commands include deleting, transmitting, and saving SMS messages.
GSM 07.07 for GPRS The GSM 07.07 for GPRS AT commands are required for all GPRS functionality, including PDP
context definitions and activations, quality of service (QoS) definitions and requests for GPRS
attaches and detaches, PDP address retrieval, GPRS mobile station class retrieval, event
reporting, network registration status retrieval, and SMS.