M3-R3 / M3-TR3
Evaluation board user guide
Product:
M3-R3 / M3-TR3
Version:
Date:
Prepared by:
1.1
28.8.2013
TP
Change history:
Version
0.1
1.0
1.1
Date
21.3.2012
27.4.2012
28.8.2013
Description
First version.
Approved version
Described behavior of Stat led states in section 2.5
Table of Contents
1
INTRODUCTION .......................................................................................... 1
2
GENERAL DESCRIPTION ................................................................................ 1
2.1
2.2
2.3
2.4
2.5
2.6
DTE INTERFACE ............................................................................................ 1
DC CONNECTOR ........................................................................................ 1
RF CONNECTOR .......................................................................................... 1
SWITCHES & LED DESCRIPTION .................................................................... 2
STAT LED ...................................................................................................... 3
SERVICE SWITCH .......................................................................................... 4
1
1
INTRODUCTION
This document describes the M3-R3 / M3-TR3 RX/RX-TX-Module evaluation board
usage, primary functions and connections of it.
2
GENERAL DESCRIPTION
Evaluation board is mainly designed for customer evaluation needs. This
document will focus on describing the board and its use for customer
development and evaluation purposes.
The main task of the board is to provide standard interfaces for accessing the M3R3 or M3-TR3 Module.
2.1 DTE INTERFACE
M3-R3 or M3-TR3 module DTE interface pins are accessible via a standard D9
connector. The signals are according to RS232C standard. Level converter is
located in the connection board.
2.2 DC CONNECTOR
Evaluation board DC connector is detachable / lockable screw terminal. Supply
voltage range is 9-30VDC.
2.3 RF CONNECTOR
Board has one RF antenna connector which is basic TNC-female (50 ohm) type
connector.
2
2.4
SWITCHES & LED DESCRIPTION
Layout picture of board (connection board not included).
3
DUT
L1
L2
Description
Module place
Power LED
STAT LED
SW1
SERVICE switch
S1-A
ENA_MOD (On /
Off)
S1-B
VCC_IO (On / Off)
Use
Place to M3-R3 or M3-TR3 module.
Light on when board is powered.
Status signal LED. “1” when device is OK and working
normally. Various toggle sequences for other state
indications. See separate section of manual.
Input for service access. Internally pulled high.
Pull low / drive low to set UART1 (RD1,TD1) into known
state. Known state parameters are 38400,N,8,1.
Enables modem when on.
>1,2V= Modem power is ON,
<0.2V= Modem power is OFF
EXTERNAL Voltage= 1.8V….3.3V IO POWER.
“1” LEVEL FOR CMOS IO
INTERNAL Voltage= not connected
2.5 STAT LED
STAT LED indicates the status of the device with the following behavior:
In the evaluation board LED state “1” means that the LED light is off and state “0” means
that the LED light is on.
Blink cycle
Mode
“1” - statically
module is operational “searching for a
new frame”
“0” for the endurance of the
“0” when module is receiving data from
received frame.
air interface. “1” when receiving.
In practical cases will toggle at the
frequency of the data packets on the air
interface.
“0” statically
Modem is in sleep1 or sleep2 mode
LED is toggled in 1s interval
Modem is in programming mode
LED is toggled in 250ms
Modem has detected a fault, fault codes
interval
can be read in the programming mode.
*LED is toggled in 500ms
*SL Command Mode. More details in
interval.
M3-TR3 integration guide
Table. Modes of STAT LED.
* Only in M3-TR3 module
4
2.6 SERVICE SWITCH
SERVICE switch is used to set the UART1 into a known state. Pulling this pin low
activates the service mode and set the UART1 into 38400,N,8,1.
This is intended for service access of the module for having known serial port
settings in order to access the module parameters.
The switch does not affect to any permanent settings. Releasing/driving the pin
high will return serial port 1 into the configured state.