zThis device complies with part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
zThis device has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiated radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help.
Changes or modifications not expressly approved by the party responsible for compliance could void
the user‘s authority to operate the equipment.
z This device complies with FCC radiation exposure limits set forth for an uncontrolled
environment. In order to avoid the possibility of exceeding the FCC radio frequency exposure
limits, human proximity to the antenna shall not be less than 20cm (8 inches) during normal
operation.
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Traffic Receiver Module
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Warning:
The maximum antenna gain allowed for use with this device is -0.81 dBi.
When the module is installed in the host device, the FCC ID label must be visible through a
window on the final device or it must be visible when an access panel, door or cover is easily
removed. If not, a second label must be placed on the outside of the final device that
contains the following text: “Contains FCC ID: S4L-HDTM"
3.5 Dial-up network by HD Traffic Receiver......................................................................................... 33
3.6 How to setup Hyper Terminal for AT commands........................................................................... 35
ANNEX A - AT COMMAND SET FOR HD TRAFFIC RECEIVER MODULE......................................37
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Traffic Receiver Module
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1. Introduction
HD Traffic Receiver Module is a GPRS modem module. It is a small, lightweight, low power
consumption and RoHS compliant device that allow digital communication services wherever a GSM
850, 900, DCS 1800 or PCS 1900 network is present.
The module is provided with a 20-pin board-to-board connector or 12 pins FPC connector. Power
input connector is necessary when link the modem PCB with 12 pins FPC connector. It also
provides a 50 Ohm Murata RF test port and antenna contact pads.
From the interface point of view, the module provides the following:
z RS232 UART interface
z Two wires RS232 interface
z 2.75V output power source
z 1.8V/3.0V SIM card holder
z System reset
z Power ON/OFF function
z System power interface
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Traffic Receiver Module
2. General Product Description
2.1 SIM Card Holder Support
The HD Traffic Receiver Module has on the backside of the PCB, the necessary pads to
manually solder a SIM card holder. The type of the SIM card holder to be used is
UNCR2103D006-0 of JESS-LINK.
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2.2 Supply voltage
The external power supply must be connected to Vpower signal and must fulfill the
following requirements:
Nominal operating voltage 3.8 V•
Operating voltage range 3.•4 V - 4.2 V
NOTE: 1. Operating voltage range must never be exceeded; care must be taken in order to fulfill
min/max voltage requirements.
2. The minimum transmission burst voltage in worst network conduction should be kept 3.1V
above.
2.3 Power consumption
The typical current consumption of HD Traffic Receiver Module is:
Power off current (Typical) <= 60 uA
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Traffic Receiver Module
Stand-by current (GSM idle) <= 4 mA
Operating current in GSM channel <= 300 mA
Operating current in GPRS class 10 <= 500 mA
2.4 SIM reader
The HD Traffic Receiver Module support phase 2 GSM11.14 - SIM 1.8V/3V volts.
2.5 Data transmission
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The HD Traffic Receiver Module supports GPRS Class 10, MS Class B.
2.6 Logic level specifications
Where not specifically stated, all the interface circuits work at 2.8V CMOS logic levels.
The following table shows the logic level specifications used in the module interface circuits:
Absolute Maximum Ratings –Not Functional
Parameter Min Max
Input level on any digital pin when on - 0.3 V + 3.75 V
Input voltage on any analog pins when on - 0.3 V + 3.0 V
Operating Range –Interface level (2.8V CMOS)
Level Min Max
Input high level 2.1 V 3.3 V
Input low level 0 V 0.5 V
Output high level 2.2 V 3.0 V
Output low level 0 V 0.35 V
Operating Range –Interface level (2.0V CMOS)
Level Min Max
Input high level 1.6 V 3.3 V
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Traffic Receiver Module
Input low level 0 V 0.4 V
Output high level 1.65 V 2.2 V
Output low level 0 V 0.35 V
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2.7 Reset signal
RESET signal is used to reset the HD Traffic Receiver Module. Whenever this signal is pulled
low, the module is reset. When the device is reset it stops any operation and after the release
of the reset it is unconditionally rebooted, without doing any detach operation from the network
where it is registered. This behavior is not like a proper shut down because any GSM device is
requested to issue a detach request on turn off. For this reason the Reset signal must not be
used to normally shutting down the device, but only as an emergency exit in the rare case the
device remains stuck waiting for some network response.
The RESET is internally controlled on start-up to achieve always a proper power-on reset
sequence, so there's no need to control this pin on start-up. It may only be used to reset a
device already on that is not responding to any command.
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Reset Signal Operating levels:
Signal Min Max
RESET Input high 2.2 V* 3.3 V
RESET Input low 0 V 0.2 V
* This signal is internally pulled up so the pin can be left floating if not used
If unused, this signal may be left unconnected. If used, then it must always be connected
with an open collector transistor, to allow the internal circuitry the power on reset and under
voltage lockout functions.
2.8 2.75V_out power output
A regulated power supply output is provided in order to supply small devices from module. This
output is active when the module is ON and goes off when module is shut down. The operating
range characteristics of the supply are:
Operating Range –2.75V_out power supply
Min Typical Max
Output voltage 2.75 V 2.85 V 2.95 V
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Traffic Receiver Module
Output current 50 mA
Output bypass capacitor 2.2 uF
The Module compliant with GMS/GPRS protocol stack R.99
• GPRS multi-slot class 10
• MS class B
• Coding scheme 1-4
2.12 Transmitter output power
2.12.1 GSM–850/900
The Module in GSM–850/900 operating mode are class 4 in accordance with the specifications
that determine the nominal 2W peak RF power (+33dBm) on 50-Ohm load.
2.12.2 DCS–1800/PCS –1900
The module in DCS–1800/PCS–1900 operating mode are class 1 in accordance with the
specifications that determine the nominal 1W peak RF power (+30dBm) on 50-Ohm load.
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