MTCMR-C1-GP-N2 Multi-Tech Systems, MTCMR-C1-GP-N2 Datasheet - Page 118

• Manufacturer Part Number: MTCMR-C1-GP-N2
• Description: MODEM CELLULAR DUAL CDMA
• Manufacturer: Multi-Tech Systems
• Series: MultiModem® iCellr

Specifications of MTCMR-C1-GP-N2

• Function: Transceiver, CDMA, Modem
• Modulation Or Protocol: CDMA2000
• Frequency: 800MHz, 1.9GHz, 1575.42MHz
• Applications: Sprint Networks (USA)
• Interface: RS-232, USB
• Sensitivity: -161dB
• Data Rate - Maximum: 153.6kbps
• Voltage - Supply: 9 V ~ 32 V, USB
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 881-1096

Chapter 20 – Host Application Scenarios
Chapter 20 – Host Application
Scenarios
Introduction
This chapter contains descriptions and examples of how to use many of the features that are supported by the
CDMA C1 devices. While the AT commands sections describe each AT command and its syntax and function, the
focus of this chapter is on the usage of the commands and how they are related to each other.
Each scenario lists the AT commands that are used in the examples. It is important to become familiar with the
description of the commands before studying the examples. The user scenarios section is provided as a
supplement to the AT command reference section and does not include all necessary information.
Set Up for Serial Communication
The device's UART1 is configured as an EIA232 DCE device. Refer to the Specifications sections in the
Developer Guide or the User Guides for more information about the UART1 configuration and pin-out.
At a minimum, the serial connection between the host processor and the CDMA-C1 device must include the RxD,
TxD and GND signals. However, it is recommended that hardware flow control be used whenever possible since
it provides the best protection against serial port data overruns that could disrupt host-to-device communications.
Hardware flow control requires at a minimum that the signal lines RTS (RFR) and CTS are connected as well.
The additional modem control lines RI, DTR, DSR and DCD are used by the device for advanced features like
data signaling, device ready indication, wakeup and online data mode. Even if you do not currently plan to use
these features, it is recommended that you connect these signal lines between the host processor and the CDMA-
C1 device to provide for future enhancements.
If you are using the Development Kit and your host processor or PC is configured as DTE, be sure that your serial
cable is a straight-through modem cable or DTE-DCE cable.
The UART1 default serial port settings are 115,200 bps, 8 bits, no parity, 1 stop bit and hardware flow control
enabled. These settings work well for many host applications. If you need to change UART1 settings, please refer
to the commands in the Communication Commands section. You can return the settings to their defaults by using
the AT&F command.
The remainder of the examples in this section assume that the CDMA-C1 device has been configured for
115200,n,8,1 and hardware flow control.
Acquiring Cellular Service
See the Activation Notices included in with your product and on the product CD.
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C)
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