Integration Guide
Table Of Contents
- 1 Introduction
- 2 Module Power
- 3 Interfaces
- 4 Hardware Design Guidelines
- Advanced Tips for an RF-Friendly Layout
- Audio Reference Design
- Control Connector Signal Descriptions and Functions
- Module Power (PINS 87, 89, 91, 93, 95, 97, 99)
- Modem Power-on and Recovery Techniques
- Power Switch Logic Detect (Pin 85)
- ON/OFF (PIN 37)
- Phone On - PON (PIN 35)
- Internal Power Switch
- Voltage Reference - VREG_MSME1.8 (PIN 77)
- USB (PINS 1, 3, 5, 7)
- General Purpose Input/Output Interface
- RTC Sleep
- Serial Interfaces and Handshake (Pins 11, 13, 15, 17, 19, 21, 23, 25)
- UART 2 (Pins 27, 29)
- Digital Audio Interface (Pins 12, 14, 16, 18)
- 32 kHz Output (PIN 56)
- Analog-to-Digital Inputs (PIN 44 and 74)
- Handset Microphone Input (PINS 65, 67)
- Handset Microphone BIAS Output (PINS 53, 63)
- Handset Speaker Output (PINS 71, 73)
- Headset Microphone Input (PIN 55)
- Headset Speaker Output Left and Right (PINS 57, 59)
- Headset Detect (PIN 47)
- Circuit Protection
- 5 USB Driver Installation
- 35 -
Serial Interfaces And Handshake (Pins 11, 13, 15, 17, 19, 21, 23, 25)
The pin naming for TX/RX/RTS/CTS/DTR/DSR/DCD/RI is referenced as a DCE. The DTE
device should match their input pins to the Novatel Wireless M2M outputs and vice-versa.
Additionally, there are AT commands that may need to be executed in order to ensure proper
operation. See the chart below.
9 way D Connector Pin Num-
ber
Signal Signal Dir-
ection
Novatel Wireless M2M Pin Num-
ber
Novatel Wireless M2M AT Com-
mand
1 Carrier Detect (CD) from DCE 19 AT&C
2 Receive Data (RD) from DCE 15
3 Transmit Data (TD) from DTE 21
4 Data Terminal Ready
(DTR)
from DTE 17 AT&D
5 Signal Ground both
6 Data Set Ready (DSR) from DCE 25
7 Request To Send (RTS) from DTE 11 AT+IFC
8 Clear To Send (CTS) from DCE 13 AT+IFC
9 Ring Indicator (RI) from DCE 23
The key features of the UART1 in the modem mode are as follows:
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16C750 compatibility
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Baud rates: 300,600,1200,2400,4800,9600,19200,38400,57600,115200,230400
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Supported data format:
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Data bit: 8 bits
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Parity bit: none
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Stop bit: 1 bit
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Hardware flow control RTS/CTS
The HS 3001 module is designed to be used like a DTE device.
Default settings are 8 data, 1 stop, no parity, and 115200. RTS and CTS may be used for
hardware handshaking. DTR may be used to force the modem into AT command mode from
online data mode (See AT Command Document, command AT&D). The serial interface is 1.8 V
logic. By default, hardware handshaking (AT+IFC) is disabled. If the integrator does not wish
to use flow control, disable hardware flow control in the modem using the AT+IFC command.
For a minimal Serial implementation use the following configuration:
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Connect RxData (pin 15) and TxData (pin 21) to the COM port serial data lines.
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Set AT+IFC=0,0 to disable flow control.
Notes: