Novatel HS 3001, Integration Manual

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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: