SEPTENTRIO AsteRx2 Series User manual

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AsteRx2 Product Family Hardware Manual v2.10.1 1
AsteRx2
Product Family Hardware Manual
Version 2.10.1

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AsteRx2 Product Family Hardware Manual v2.10.1 2
AsteRx2 Product Family Hardware Manual
Version 2.10.1
April 08, 2014
© Copyright 2000-2014 Septentrio nv/sa. All rights reserved.
Septentrio Satellite Navigation
Greenhill Campus, Interleuvenlaan 15G
B-3001 Leuven, Belgium
http://www.septentrio.com
[e-mail]
Phone: [phone]
Fax: [phone]

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AsteRx2 Product Family Hardware Manual v2.10.1 3
Table of contents
TABLE OF CONTENTS.........................................................................................................3
1ASTERX2E_HDC, ASTERX2EL_HDC & ASTERX2I_HDC...........................................8
1.1 Connectors ................................................................................................................................. 9
1.2 Cables ........................................................................................................................................11
1.3 Stand-By Mode........................................................................................................................ 14
1.4 SD Memory Card Usage......................................................................................................... 15
1.5 Applicable Software Package................................................................................................. 15
1.6 Hardware Specifications......................................................................................................... 15
1.6.1 Power Consumption.......................................................................................................... 15
1.6.2 Environmental ................................................................................................................... 15
2ASTERX2EH_PRO.......................................................................................................16
2.1 Rear Panel Connectors............................................................................................................ 16
2.1.1 MAIN and AUX (TNC) .................................................................................................... 16
2.1.2 PPS OUT (BNC) ............................................................................................................... 17
2.1.3 REF IN (BNC)................................................................................................................... 17
2.1.4 REF OUT (BNC)............................................................................................................... 17
2.2 Front Panel Connectors.......................................................................................................... 18
2.2.1 COM1................................................................................................................................ 18
2.2.2 COM2................................................................................................................................ 19
2.2.3 COM3-4/USB.................................................................................................................... 19
2.2.4 ETH................................................................................................................................... 20
2.2.5 OUT................................................................................................................................... 20
2.2.6 IN....................................................................................................................................... 20
2.2.7 ................................................................................................................................... 20
2.2.8 PWR.................................................................................................................................. 21
2.3 Log Button ............................................................................................................................... 21
2.4 Power Button ........................................................................................................................... 21
2.5 Status LEDs ............................................................................................................................. 21
2.6 Cables ....................................................................................................................................... 21
2.7 Internal Logging on SD Memory Card................................................................................. 23
2.8 Applicable Software Package................................................................................................. 23
2.9 Hardware Specifications......................................................................................................... 23
3ASTERX2E_OEM & ASTERX2I_OEM..........................................................................24
3.1 Mechanical Drawings.............................................................................................................. 24

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AsteRx2 Product Family Hardware Manual v2.10.1 4
3.2 Electrical Specifications.......................................................................................................... 26
3.3 Applicable Software Package................................................................................................. 26
3.4 Hardware Specifications......................................................................................................... 26
3.4.1 Power Consumption.......................................................................................................... 26
3.4.2 Temperature Range............................................................................................................ 26
3.5 IMU Cable (AsteRx2i_OEM only)......................................................................................... 26
4ASTERX2EH_OEM.......................................................................................................27
4.1 Mechanical Drawings.............................................................................................................. 27
4.2 Electrical Specifications.......................................................................................................... 30
4.3 Applicable Software Package................................................................................................. 30
4.4 Hardware Specifications......................................................................................................... 30
4.4.1 Power Consumption.......................................................................................................... 30
4.4.2 Temperature Range............................................................................................................ 30
5ASTERX2EL_OEM.......................................................................................................31
5.1 Mechanical Drawings.............................................................................................................. 31
5.2 Electrical Specifications.......................................................................................................... 33
5.3 Applicable Software Package................................................................................................. 33
5.4 Hardware Specifications......................................................................................................... 33
5.4.1 Power Consumption.......................................................................................................... 33
5.4.2 Temperature Range............................................................................................................ 34
APPENDIX A OEM RECEIVERS ELECTRICAL SPECIFICATIONS.................................35
A.1 Antenna Connector ................................................................................................................. 35
A.2 80-pin Connector..................................................................................................................... 35
A.3 Frequency Reference Selection............................................................................................... 38
A.4 Ethernet (only forAsteRx2eL_OEM and AsteRx2eH_OEM)............................................. 38
A.5 Stand-By Mode........................................................................................................................ 38
A.6 SD Memory Card Usage......................................................................................................... 39
APPENDIX B LED STATUS INDICATORS........................................................................41

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AsteRx2 Product Family Hardware Manual v2.10.1 5
CE NOTICE
Receivers of the AsteRx2 family carry the CE mark and are as such compliant with the 2004/108/EC -
EMC Directive and amendments, 2006/95/EC - Low Voltage Directive, both amended by the CE-
marking directive 93/68/EC.
With regards to EMC, these devices are declared as class B, suitable for residential or business
environment.
ROHS/WEEE NOTICE
Receivers of the AsteRx2 family comply with European Union (EU) Directive 2002/95/EC
on the restriction of the use of certain hazardous substances in electrical and electronic
equipment (RoHS Directive).
Receivers of the AsteRx2 family comply with the European Union (EU) Directive
2002/96/EC on waste electrical and electronic equipment (WEEE). The purpose of this
Directive is the prevention of waste electrical and electronic equipment (WEEE), and in
addition, the reuse, recycling and other forms of recovery of such wastes so as to reduce the
disposal of waste. If purchased in the European Union, please return the receiver at the end
of its life to the supplier from which it was purchased.

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AsteRx2 Product Family Hardware Manual v2.10.1 6
SAFETY INFORMATION
Statement 0000/WARNING: IMPORTANT SAFETY INSTRUCTIONS
This warning symbol means danger and indicates that you are in a situation that may result in body injury and physical
damage. Before you work on any equipment, be aware of the hazards involved with electrical circuitry and familiarize
yourself with standard practices for preventing accidents. Use the statement number provided at the beginning of each
warning to locate its translation in the translated safety warnings that accompanied this device.
Statement 0001/WARNING: The power supply provided by Septentrio (if any) should not be replaced by another. If
you are using the receiver with your own power supply, it must have a double isolated construction and must match the
specifications of the provided power supply.
Statement 0003/WARNING: Ultimate disposal of this product should be handled according to all national laws and
regulations.
Statement 0005/WARNING: The equipment and all the accessories included with the product may only be used
according to the specifications in the delivered release note, in the manual and in all other documents delivered with the
receiver.
Statement 0007/WARNING: Never place the equipment in direct sunlight.
Statement 0008/WARNING: The outside of the instrument may be cleaned using a clean, lightly dampened cloth. Do
not use any cleaning liquids containing alcohol, methylated spirit, ammonia etc.

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AsteRx2 Product Family Hardware Manual v2.10.1 7
WARNING: Handling of ESD Sensitive Devices
Electrostatic discharge is a sudden flow of current from one object to another either object or to ground.
Electrostatic charges can accumulate on common items such as polystyrene drinking cups, cellophane tape,
synthetic clothing, untreated foam packaging material, and untreated plastic bags and work folders, to name
but a few.
Electronic components and assemblies, such as Septentrio OEM receivers, can be permanently damaged or
destroyed when near or in contact with electro-statically charged objects. When you handle components or
assemblies that are not in protective bags and you are not sure whether they are static-sensitive, assume that
they are static-sensitive and handle them accordingly.
Everyone who is working with ESD-sensitive devices must be aware of these rules.
General rules
Always test your ground strap, bench mat, conductive work surface, and ground cord before either removing
components and assemblies from their protective bags or before beginning any disassembly or assembly
procedures. Perform all service procedures in a static-protected environment. Always use techniques and
equipment designed to protect personnel and equipment from electrostatic discharge.
Handling
•Remove static-sensitive components and assemblies from their static-shielding bags only at static-safe
workstations - a properly grounded table and grounded floor mat - and only when you are wearing a
grounded wrist strap (with a resistor of at least 1 mega-ohm in series) or other grounding device. Avoid
having non-ESD safe material on the workbench. Clear the work station of static generators like e.g.
polyethylene, vinyl’s, foam, notebooks, document holders, etc.
•Use only grounded tools when manipulating static-sensitive components and assemblies.
•Place and seal static-sensitive components and assemblies in their original static-shielding bags before
removal from static-protected areas.
•Stacking of board assemblies should be avoided to prevent physical damage to devices.
Transport & Storage
•Limit as much as possible the manipulation of ESD-sensitive devices and components.
•Handle ESD-sensitive parts as far as possible in their (original) protective packaging.
•Protect ESD-sensitive components against dust as this is a possible carrier of static loads. Assembled
printed circuit boards (PCB’s) must always be placed in an anti-static shielding bag, box or PCB
containers during transport between workplaces or to a warehouse.

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AsteRx2 Product Family Hardware Manual v2.10.1 8
1AsteRx2e_HDC, AsteRx2eL_HDC & AsteRx2i_HDC
All dimensions expressed in millimeters.
Mounting holes: hole diameter: 6mm.
max diameter of screw head: 11mm.
Weight: 500g
131.25

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AsteRx2 Product Family Hardware Manual v2.10.1 9
1.1 Connectors
Connector
Type
PWR
ODU MINI-SNAP Series F, 5 pins, part number male connector: S42F1C-T05MPHO-90CP
Pinout of the female connector.
I/O I
I/O II
ODU MINI-SNAP Series F, 16 pins, part number male connector: S42F1C-T16MFDO-90CS
Pinout of the female connector.
ANTENNA
TNC
The functionalities marked yellow in the tables below are only available if the input/output board
inside your receiver is of type BIO0019x. If it is of type BIO0008x, the pins are reserved and must be
left unconnected. Please check your Input/Output board version in the Product Group Hardware
Release Notes on the CD shipped with your receiver, section “Hardware Deliverables”.
PWR
Pin#
Name
I/O type
Level
Comment
1
Ground
P
0V
2
Power1_In
P
9 –30V
Main power input.
3
Power2_In
P
9 –30V
Backup power input. The receiver automatically
switches to Power2_In when the voltage at Power1_In
drops below 7V.
4
Reserved
To be tied to ground for proper operation.
5
Vantenna
P
0 –12 V
If not connected, a 5-V DC supply is applied to the
central conductor of the TNC antenna connector. If
Vantenna > 4V, the applied voltage is transferred to the
antenna connector. Max current: 200mA.
Note: I/O type: I=input, O=output, P=power.
Power LED
TRACKLED
LOGLED
PVTLED
4
5
1
2
3
1
2
7
8
9
10
11
12
13
14
15
16
3
4
5
5
1
6

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AsteRx2 Product Family Hardware Manual v2.10.1 10
I/O I
Pin#
Name
I/O type
Level
Comment
1
Ground
P
0V
2
COM1_RX
I
RS232
Serial COM 1 receive line (as seen from receiver side)
3
COM1_TX
O
RS232
Serial COM 1 transmit line (as seen from receiver side)
4
USB_D+
I/O
USB
USB data signal positive D+
5
USB_D-
I/O
USB data signal negative D-
6
USB_Vbus
I
4.35V≤Vhigh≤5.25V
USB Power. Cannot be used to power the receiver.
7
nRST_In
I
LVTTL, pulled up
Pulling this pin down for at least 1ms and then releasing
it resets the receiver.
8
ETH_TX+
I/O
Ethernet
Ethernet_TX+ (only on AsteRx2eL_HDC)
9
ETH_TX-
I/O
Ethernet_TX- (only on AsteRx2eL_HDC)
10
ETH_RX+
I/O
Ethernet_RX+ (only on AsteRx2eL_HDC)
11
ETH_RX-
I/O
Ethernet_RX- (only on AsteRx2eL_HDC)
12
Ground
P
0V
13
GPLED
O
LVTTL
General-purpose status indicator, see Appendix B.
14
PVTLED
O
LVTTL
PVT status indicator, see Appendix B.
Functionality not available on BIO0019x.
15
TRACKLED
O
LVTTL
Tracking status indicator, see Appendix B.
Functionality not available on BIO0019x.
16
PowerOut
P
5V
Power output, maximum current 200mA
Note: I=input, O=output, P=power, PU=pull up, PD=pull down.
I/O II
Pin#
Name
I/O type
Level
Comment
1
Ground
P
0V
2
COM2_RX
I
RS232
Serial COM 2 receive line (as seen from receiver side)
3
COM2_TX
O
RS232
Serial COM 2 transmit line (as seen from receiver side)
4
EventA
I
BIO0008: LVTTL, PD
BIO0019: 0-30V
Event A input (see Firmware User Manual for operation
instructions)
5
EventB
I
BIO0008: LVTTL, PD
BIO0019: 0-30V
Event B input (see Firmware User Manual for operation
instructions)
6
Reserved
7
Button
I
LVTTL,
no pull up/down
“Button” pin of the receiver (see Firmware User Manual).
High to low transitions are detected as “button pressed”
events.
8
COM3_RX
I
RS232
Serial COM 3 receive line (as seen from receiver side)
9
COM3_CTS
I
RS232
Serial COM 3 CTS line
10
COM3_TX
O
RS232
Serial COM 3 transmit line (as seen from receiver side)
11
COM3_RTS
O
RS232
Serial COM 3 RTS line
12
Ground
P
0V
13
nRST_Out
O
LVTTL
This line is tied to ground when the receiver is resetting,
and left in tri-state in normal operation
14
Reserved
15
xPPS_Out
O
5V-TTL
Pulse per second output, see Firmware User Manual.
Pulse duration: 2ms.
16
PowerOut
P
5V
Power output, maximum current 200mA
Note: I=input, O=output, P=power, PU=pull up, PD=pull down.
ANTENNA
The gain of the antenna element together with its low noise amplifier and cable losses summed up until receiver
connector must be between 15 and 50 dB.
The receiver provides a 5V DC supply by default (see also the Vantenna pin of the PWR connector). Maximum
current is 200mA.
Never inject a DC voltage into the ANT connector as it may damage the receiver. For instance, when
using a splitter to distribute the antenna signal to multiple receivers, make sure that no more than one output of
the splitter passes DC. Use DC-blocks otherwise.
LEDs
The functionality of the LEDs is described in Appendix B.

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AsteRx2 Product Family Hardware Manual v2.10.1 11
1.2 Cables
When installing the receiver, make sure to allow space for the connectors and cables. At least 10cm
free space is needed in front of the receiver front panel to avoid excessive cable bending. The length
of the male ODU connector and of the bend relief is shown below.
Cable Name: CBL*_HDC_PWR_OE Part #: 201045
Open-ended power cable. Check section 1.1 for the ODU pinout.
ODU Pin#
Pin Name
Wire Color
1
Ground
Black
2
Power1_In
Green
3
Power2_In
White
4
Reserved
Brown
5
Vantenna
Blue
For proper operation, the brown wire (pin#4) must be tied to ground (i.e. to the black wire).
Cable Name: CBL*_HDC_USB Part #: 201043
USB cable to be connected to I/O I.
Cable Name: CBL*_HDC_COM Part #: 201042
COM1/COM2 to PC (DSUB9-female). This cable can be connected to either I/O I or I/O II,
corresponding to COM1 and COM2 respectively. The GND (pin 5), Tx (pin 3) and Rx (pin 2) of the
9-pin DSUB9 connector are connected to respectively pins 1, 2 and 3 of the 16-pin ODU connector.
Other pins are not connected.
Cable Name: CBL*_HDC_COM1_USB_GPIO Part #: 201214
COM and USB with GPIO. This cable must be connected to I/O I and gives access to COM1
(DSUB9-female) and USB. RTS/CTS handshaking is not supported on COM1.
Next to the serial and USB connectors, this cable features the following open-ended wires (check
section 1.1 for the I/O I ODU pinout):
ODU Pin#
Pin Name
(I/O I)
Wire Color
7
nRST_In
Green
12
Ground
Black
13
GPLED
Purple
14
PVTLED
Brown
15
TRACKLED
Yellow
16
PowerOut
Red
4cm
3-4cm

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AsteRx2 Product Family Hardware Manual v2.10.1 12
Cable Name: CBL*_HDC_COM2_COM3_GPIO Part #: 201213
Dual COM cable with GPIO. This cable must be connected to I/O II and gives access to COM2 and
COM3. RTS/CTS handshaking is only available on COM3.
Next to the two DSUB9 connectors, this cable features the following open-ended wires (check section
1.1 for the I/O II ODU pinout):
ODU Pin#
Pin Name
(I/O II)
Wire Color
4
EventA
Red
5
EventB
Purple
6
Reserved
Green
12
Ground
Black
15
xPPS_Out
Brown
Do not leave the red, purple and green wires floating. Tie them to ground if not used. This is to avoid
crosstalk effects that could lead to spurious level transitions on the EventA and EventB inputs.
Cable Name: CBL*_HDC_COM2_COM3_GPIZ Part #: 201236
Dual COM cable with GPIO. This cable must be connected to I/O II and gives access to COM2 and
COM3 (RTS/CTS not supported).
Next to the two DSUB9 connectors, this cable features the following open-ended wires (check section
1.1 for the I/O II ODU pinout):
ODU Pin#
Pin Name
(I/O II)
Wire Color
4
EventA
Blue
5
EventB
White/Blue
6
Reserved
Green
7
Button
White/Green
9
COM3_CTS
White/Orange
12
Ground
Brown
15
xPPS_Out
Orange
The white/green (Button) or white/orange (COM3_CTS) wires can be used as ZUPT (zero-velocity)
indicators. See also the command setExtZUPTSource.
Do not leave the blue, white/blue and green wires floating. Tie them to ground if not used. This is to
avoid crosstalk effects that could lead to spurious level transitions on the EventAand EventB inputs.

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AsteRx2 Product Family Hardware Manual v2.10.1 13
Cable Name: CBL*_HDC_OE Part #: 201044
This open-ended cable can be connected to either I/O I or I/O II. Check section 1.1 for the ODU
pinout.
Pin#
Pin Name
(I/O I)
Pin Name
(I/O II)
Wire Color
1
Ground
Ground
Brown/Red
2
COM1_RX
COM2_RX
Orange
3
COM1_TX
COM2_TX
Red
4
USB_D+
EventA
Green
5
USB_D-
EventB
Yellow
6
USB_Vbus
Reserved
Blue
7
nRST_In
Button
Grey
12
Ground
Ground
Brown/Blue
13
GPLED
nRST_Out
White/Black
14
PVTLED
Reserved
Black
15
TRACKLED
xPPS_Out
Brown
16
PowerOut
PowerOut
White/Yellow
When connecting this cable to the I/OII connector, do not leave the green and yellow wires floating.
Tie them to ground if not used. This is to avoid crosstalk effects that could lead to spurious level
transitions on the EventA and EventB inputs.
Cable Name: CBL*_HDC_ETH_MS Part #: 201238
AsteRx2eL_HDC only. Ethernet to hub/switch (straight) (RJ45) to be connected to I/O I.
Cable Name: CBL*_HDC_ETH_MX Part #: 201237
AsteRx2eL_HDC only. Ethernet to PC (crossed) (RJ45) to be connected to I/O I.

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AsteRx2 Product Family Hardware Manual v2.10.1 14
Cable Name: CBL*_HDC_COM_IMU Part #: 201083
Cable Name: CBL*_HDC_COM_IMU_XL Part #: 201101
AsteRx2i_HDC only. These cables connect the AsteRx2i_HDC with an MTi IMU sensor. The “_XL”
version of the cable is longer than the other (5m vs. 1.8m).
Plugging this cable into I/O I connects the IMU with the receiver’s COM1 port. You will need to issue
the command setDataInOut,COM1,MTi to tell the receiver to use COM1 to communicate with
the IMU (see the “How To…” section of the Firmware User Manual for details).
Plugging this cable into I/O II connects the IMU with the receiver’s COM2 port. You will need to
issue the command setDataInOut,COM2,MTi to tell the receiver to use COM2 to communicate
with the IMU.
Cable Name: CBL*_HDC_COM2_COM3_GPIZ Part #: 201236
AsteRx2i_HDC only. Dual COM cable with GPIZ. This cable must be connected to I/O II and gives
access to COM2 and COM3. Only the GND, Tx and Rx pins of the DSUB9 connectors are wired.
RTS/CTS handshaking is not supported.
Next to the two DSUB9 connectors, this cable features the following open-ended wires (check section
1.1 for the I/O II ODU pinout):
ODU Pin#
Color
4
Red
5
Purple
6
Green
9
Yellow
12
Black
15
Brown
The yellow wire is typically used as ZUPT indicator when the COM3CTS line is configured as ZUPT
source with the command setZUPTSource.
Do not leave the red, purple and green wires floating. Tie them to ground if not used. This is to avoid
crosstalk effects that could lead to spurious level transitions on the EventA and EventB inputs.
1.3 Stand-By Mode
The receiver can be put in stand-by mode by entering the command “exePowerMode, standby”
(see Command Line Interface Reference Guide).
After having requested to enter stand-by mode, it takes up to 0.5 seconds for the receiver to actually
enter low-power state. This time is required to unmount the SD memory card and stop all software
activities.
Putting the receiver in stand-by mode is mandatory before shutting down the power supply if internal
logging is active.

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AsteRx2 Product Family Hardware Manual v2.10.1 15
1.4 SD Memory Card Usage
The receiver incorporates a SD memory card for internal logging. Refer to the “How-to…” section of
the Firmware User Manual to learn how to use this feature.
Before unplugging the power connector or resetting the receiver, it is needed to put the receiver in
stand-by mode and to wait at least 0.5 seconds for the SD card to be cleanly unmounted (see also
section 1.3). Failing to do so can lead to file corruption.
1.5 Applicable Software Package
The AsteRx2e_HDC and AsteRx2i_HDC are compatible with Septentrio’s SSRC1 Software Packages.
The AsteRx2eL_HDC is compatible with Septentrio’s SSRC3 Software Packages.
1.6 Hardware Specifications
1.6.1 Power Consumption
Nominal operation:
AsteRx2e_HDC: 3.1W
AsteRx2i_HDC: 3.1W without MTi IMU connected, 3.6W with MTi connected
AsteRx2eL_HDC: 4.3W
Stand-by mode : 0.55 W
1.6.2 Environmental
Temperature Range: -40 to +60 °C (operational)
-55 to +85 °C (storage)
Ingress Protection: IP65
Shock: MIL-STD-810F, 516.5
Vibration: MIL-STD-810F, 514.5

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AsteRx2 Product Family Hardware Manual v2.10.1 16
2AsteRx2eH_PRO
2.1 Rear Panel Connectors
The rear panel features five connectors.
2.1.1 MAIN and AUX (TNC)
These are the main and auxiliary antenna connectors. Connect active GNSS antennas to these
connectors. The gain at the connectors (antenna gain minus cable losses) must be in the range 15 to
50dB.
By default, the receiver provides a 5V DC supply on the MAIN and AUX connectors to feed the
antenna. Other voltages can be imposed through pin ANT_EXT of the IN connector on the front panel
(see section 2.2.6). The maximum current for each antenna is 200mA.
Never inject a DC voltage into the MAIN connector as it may damage the receiver. For instance,
when using a splitter to distribute the antenna signal to several receivers, make sure that no more than
one output of the splitter passes DC. Use DC-blocks otherwise.

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AsteRx2 Product Family Hardware Manual v2.10.1 17
2.1.2 PPS OUT (BNC)
xPPS output (5V, output impedance 50ohms). The characteristics of the xPPS output signal are
specified by the setPPSParameters command. The pulse duration is 2ms.
2.1.3 REF IN (BNC)
Use this connector to provide the receiver with an external 10 MHz frequency reference, to be used
instead of the internal oscillator. The reference signal must be sinusoidal with a peak-to-peak
amplitude (unloaded) ranging from 0.5V to 2V (-8dBm to +4dBm in a 50load).
Connecting or disconnecting the external 10 MHz reference must be done with the receiver switched
off. The receiver checks the presence of the external frequency reference during its start-up phase. If
a valid reference signal is found, the receiver clock is automatically locked to this reference.
Otherwise the internal oscillator is used as frequency reference.
If the 10 MHz reference is removed during operation, the receiver will stop.
2.1.4 REF OUT (BNC)
This connector provides a 10 MHz output signal synchronized with the frequency reference used by
the receiver (be it internal or external). It is a sinusoidal signal with unloaded peak-to-peak amplitude
of 1.1V, and output impedance of 50Ohms.

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AsteRx2 Product Family Hardware Manual v2.10.1 18
2.2 Front Panel Connectors
The front panel features 8 ODU connectors, which are described in the following sections. These
connectors are all of type ODU MINI SNAP Series F. The pinout of the female connectors and the
ODU part number of the corresponding male connectors is shown below.
3 pins
4 pins
5 pins
7 pins
S40F1C-P03MJG0-50CP S40F1C-T04MFD0-50CP S40F1C-P05MFD0-50CP S40F1C-T07MCD0-50CP
2.2.1 COM1
This 7-pin connector provides access to the first serial port (COM1).
Pin #
Description
1
Not connected
2
Signal ground (GND)
3
Not connected
4
Not connected
5
Receive Data (RXD –input to the receiver )
6
Transmit Data (TXD –output from the receiver)
7
Not connected
The receiver behaves as Data Terminal Equipment (DTE). For direct connection to a terminal or a PC,
a null-modem cable is needed.
Log button
Power button
POWER LED
LANLINK LED
TRACK LED
GP LED
PVT LED
LOG LED

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2.2.2 COM2
This 7-pin connector provides access to the second serial port (COM2).
Pin #
Description
1
+5V DC output
2
Signal ground (GND)
3
Clear To Send (CTS –input)
4
Request To Send (RTS –output)
5
Receive Data (RXD –input)
6
Transmit Data (TXD –output)
7
Not connected
The receiver behaves as Data Terminal Equipment (DTE). For direct connection to a terminal or a PC,
a null-modem cable is needed.
Pin#1 provides a 5V DC voltage, e.g. to allow feeding a Bluetooth™ device.
2.2.3 COM3-4/USB
This 7-pin connector can be configured in two modes:
COM3 and COM4 mode
USB mode.
The electrical level at pin#7 defines the operating mode.
2.2.3.1 COM3-4 mode
This mode is selected by leaving pin#7 unconnected.
2.2.3.2 USB mode
This mode is selected by applying 5V DC to pin#7.
Pin #
Description
1
Not connected
2
GND
3
COM4 RX
4
COM4 TX
5
COM3 RX
6
COM3 TX
7
Leave unconnected
Pin #
Description
1
Not connected
2
GND
3
USB D-
4
Reserved
5
USB D+
6
Reserved
7
USB Vbus

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2.2.4 ETH
Pin #
Description
1
TxD+
2
TxD-
3
RxD+
4
RxD-
2.2.5 OUT
Pin #
Description
1
Reserved
2
GND
3
GP1 output, 3.3V. Use the command setGPIOFunctionality to set the level
of this pin.
4
GP2 output, 3.3V. Use the command setGPIOFunctionality to set the level
of this pin.
5
nRST_OUT. Open-collector output, driven low when the receiver is resetting.
2.2.6 IN
Pin #
Description
1
Reserved, leave unconnected.
2
GND
3
Reserved, leave unconnected.
4
nRST_IN. Driving this pin low resets the receiver. Internally pulled-up.
Debouncing and deglitching is foreseen.
5
EVENTA, 3.3V CMOS, 5V tolerant, 100kpull down resistor. This is the first
digital input for external event timing, see Firmware User Manual for operation.
6
EVENTB, 3.3V CMOS, 5V tolerant, 100kpull down resistor. This is the
second digital input for external event timing, see Firmware User Manual for
operation.
7
ANT_EXT, external antenna power. Can be used to apply an external supply
voltage to the antenna. The voltage applied to ANT_EXT (VANT) determines the
voltage source on the MAIN and AUX1 connectors, as follows:
if VANT<2.0V or ANT_EXT left open, the antenna is powered by the internal
5V supply;
if 3.0V<VANT<4.0V, there is no power provided to the MAIN connector;
if 5.0V<VANT<12.0V, the antenna power supply is taken from ANT_EXT.
Warning:
Exceeding 12.0V for VANT, or drawing more than 200mA from the antenna
connector can permanently damage the receiver.
2.2.7
Pin #
Description
1
Reserved
2
Reserved
3
Reserved
4
Reserved
5
Reserved