Microhard Systems Pico P2400 series User manual
Pico Series P2400
Miniature 2.4 GHz Wireless Mode (OEM & Enclosed Models)
Document: Pico Series P2400 Operating Manual.v1.0.0
Date: December 2016
Firmware: v1.012
Operating Manual
150 Country Hills Landing NW
Calgary, Alberta
Canada T3K 5P3
Phone: (403) 248-0028
Fax: (403) 248-2762
www.microhardcorp.com
© Microhard Systems Inc. Confidential 2
Important User Information
Warranty
Microhard Systems Inc. warrants that each product will be free of defects in material and workmanship for a period of one (1) year for its
products. The warranty commences on the date the product is shipped by Microhard Systems Inc. Microhard Systems Inc.’s sole liability and
responsibility under this warranty is to repair or replace any product which is returned to it by the Buyer and which Microhard Systems Inc.
determines does not conform to the warranty. Product returned to Microhard Systems Inc. for warranty service will be shipped to Microhard
Systems Inc. at Buyer’s expense and will be returned to Buyer at Microhard Systems Inc.’s expense. In no event shall Microhard Systems
Inc. be responsible under this warranty for any defect which is caused by negligence, misuse or mistreatment of a product or for any unit
which has been altered or modified in any way. The warranty of replacement shall terminate with the warranty of the product.
Warranty Disclaims
Microhard Systems Inc. makes no warranties of any nature of kind, expressed or implied, with respect to the hardware, software, and/or
products and hereby disclaims any and all such warranties, including but not limited to warranty of non-infringement, implied warranties of
merchantability for a particular purpose, any interruption or loss of the hardware, software, and/or product, any delay in providing the hard-
ware, software, and/or product or correcting any defect in the hardware, software, and/or product, or any other warranty. The Purchaser
represents and warrants that Microhard Systems Inc. has not made any such warranties to the Purchaser or its agents MICROHARD SYS-
TEMS INC. EXPRESS WARRANTY TO BUYER CONSTITUTES MICROHARD SYSTEMS INC. SOLE LIABILITY AND THE
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GRANTED NO FUNCTIONAL WARRANTY.
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TIVE OR ADMINISTRATIVE ORDERS OR DECLARATIONS OR OTHERWISE, EVEN IF MICROHARD SYSTEMS INC. HAS
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SIBLE FOR ANY DAMAGE OR INJURY, MICROHARD SYSTEMS INC.'S LIABILITY FOR ANYDAMAGES SHALL NOT EXCEED
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Proprietary Rights
The Buyer hereby acknowledges that Microhard Systems Inc. has a proprietary interest and intellectual property rights in the Hardware,
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Products or documentation thereof or any copy thereof, except in accordance with this Agreement.
© Microhard Systems Inc. Confidential 3
Important User Information (continued)
About This Manual
It is assumed that users of the products described herein have either system integration or design ex-
perience, as well as an understanding of the fundamentals of radio communications.
Throughout this manual you will encounter not only illustrations (that further elaborate on the accom-
panying text), but also several symbols which you should be attentive to:
Copyright and Trademarks
©2016 Microhard Systems Inc. All rights reserved. Adaptation, or translation of this manual is prohib-
ited without prior written permission of Microhard Systems Inc, except as allowed under the copyright
laws. This document contains proprietary information that is protected by copyright. All rights reserved.
The information contained in this document is subject to change without notice.
All trademarks and names are the property of their respective owners.
Caution or Warning
Usually advises against some action which could result in undesired or
detrimental consequences.
Point to Remember
Highlights a key feature, point, or step which is noteworthy. Keeping
these in mind will simplify or enhance device usage.
Tip
An idea or suggestion to improve efficiency or enhance usefulness.
© Microhard Systems Inc. Confidential 4
Important User Information (continued)
P2400 Regulatory Requirements
WARNING:
To satisfy FCC/IC RF exposure requirements for mobile transmitting devices, a separation distance of 25 cm or more should be maintained
between the antenna of this device and persons during device operation. To ensure compliance, operations at closer than this distance is not
recommended. The antenna used for this transmitter must not be co-located in conjunction with any other antenna or transmitter.
WARNING:
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.
WARNING:
Changes or modifications not expressly approved by Microhard Systems Inc. could void the user’s authority to operate the equipment. This
device has been tested with UFL to Reverse Polarity SMA connectors with the antennas listed in Appendix A When integrated in OEM products,
fixed antennas require installation preventing end-users from replacing them with non-approved antennas. Antennas not listed in the tables must
be tested to comply with FCC Section 15.203 (unique antenna connectors) and Section 15.247 (emissions).
WARNING:
MAXIMUM EIRP
FCC Regulations allow up to 36 dBm equivalent isotropically radiated power (EIRP). Therefore, the sum of the transmitted power (in dBm),
the cabling loss and the antenna gain cannot exceed 36 dBm.
WARNING:
EQUIPMENT LABELING
The FCC and IC numbers depend on the model of the radio module. Do NOT use the Marketing Name of the product but the Model to
distinguish the Certifications Numbers. This device has been modularly approved. The manufacturer, product name, and FCC and Industry
Canada identifiers of this product must appear on the outside label of the end-user equipment.
WARNING:
This device complies with Industry Canada’s license-exempt RSSs. Operation is subject to the following two conditions:
(1) This device may not cause interference; and (2) This device must accept any interference, including interference that may cause undesired
operation of the device.
SAMPLE LABEL REQUIREMENT for Model: p2400:
Contains:
FCCID: NS9P2400 IC: 3143A-14P2400
This 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.
© Microhard Systems Inc. Confidential 5
Important User Information (continued)
Contains:
FCCID: NS9P2400 IC: 3143A-P2400
Cet appareil est conforme à la partie 15 des règles
de la FCC. Son fonctionnement est soumis aux
deux conditions suivantes : ( 1 ) ce dispositif ne doit
pas causer d'interférences nuisibles et ( 2) cet
appareil doit accepter toute interférence reçue,
incluant les interférences qui peuvent provoquer un
fonctionnement indésirable .
WARNING:
Pour satisfaire aux exigences de la FCC/IC d'exposition RF pour la base et mobiles sur une distance de séparation de 25 cm ou plus doit
être maintenue entre l'antenne de cet appareil et des personnes lors de fonctionnement du dispositif. Pour assurer la conformité des
opérations au plus près que cette distance n'est pas recommandée. L'antenne utilisée pour ce transmetteur ne doit pas être co-localisés en
conjonction avec toute autre antenne ou transmetteur.
WARNING:
Son fonctionnement est soumis aux deux conditions suivantes : ( 1 ) ce dispositif ne doit pas causer d'interférences nuisibles et ( 2) cet appareil
doit accepter toute interférence reçue, incluant les interférences qui peuvent provoquer un fonctionnement indésirable .
WARNING:
Les changements ou modifications non expressément approuvés par Microhard Systems Inc. pourraient annuler l'autorité de l'utilisateur à
utiliser l'équipement . Ce dispositif a été testé avec MCX et connecteurs SMA à polarité inverse sur les antennes répertoriées à l'annexe A
Lorsqu'il est intégré dans les produits OEM , antennes fixes nécessitent une installation empêchant les utilisateurs finaux de les remplacer par
des antennes non approuvées . Antennes ne figurant pas dans les tableaux doivent être testés pour se conformer à la Section 15.203
(connecteurs d'antenne uniques ) et à la Section 15.247 ( émissions ) .
WARNING:
MAXIMUM PIRE
Règlement FCC permettent jusqu'à 36 dBm puissance isotrope rayonnée équivalente ( PIRE) . Par conséquent, la somme de la puissance
émise ( en dBm ), la perte de câblage et le gain d'antenne ne peut pas dépasser 36 dBm.
WARNING:
ÉQUIPEMENT DE MARQUAGE
Les numéros FCC et IC dépendent du modèle du module radio . Ne pas utiliser le nom marketing du produit, mais le modèle de distinguer les
numéros Certifications . Ce dispositif a été approuvé de façon modulaire . Le fabricant , nom du produit, et les identificateurs de la FCC et
d'Industrie Canada de ce produit doivent figurer sur l'étiquette à l'extérieur de l'équipement de l'utilisateur final .
WARNING:
Cet appareil est conforme aux CNR exempts de licence d'Industrie Canada . Son fonctionnement est soumis aux deux conditions suivantes :
( 1 ) Ce dispositif ne peut causer des interférences ; et ( 2 ) Ce dispositif doit accepter toute interférence , y compris les interférences qui
peuvent causer un mauvais fonctionnement de l'appareil.
L'EXEMPLE D'ÉTIQUETTE:
© Microhard Systems Inc. Confidential 6
Revision History
Revision Description Initials Date
1.0 First Release PEH December 2016
© Microhard Systems Inc. Confidential 7
Table of Contents
1.0 Overview 10
1.1 Performance Features............................................................................................................................10
1.2 Specifications .........................................................................................................................................11
2.0 Hardware Description 13
2.1 Mechanical Drawing ...............................................................................................................................14
2.1.1 Recommended Solder Mask (Pad Landing) ................................................................................15
2.1.2 Recommended Solder Paste Pattern...........................................................................................16
2.1.3 OEM Connectors..........................................................................................................................16
2.1.4 SMT Temperature Profile.............................................................................................................17
2.1.5 SMT Baking Instructions (MSL)....................................................................................................17
2.2 Pin Descriptions .....................................................................................................................................18
2.3 Minimum Connection Requirements ....................................................................................................19
2.4 Electrical Characteristics.......................................................................................................................22
2.4.1 Test Conditions..........................................................................................................................22
2.4.1.1 Minimum and Maximum Values ...................................................................................22
2.4.1.2 Typical Values..............................................................................................................22
2.4.1.3 Loading Capacitor........................................................................................................22
2.4.1.4 Pin Input Voltage..........................................................................................................22
2.4.2 Absolute Maximum Ratings ......................................................................................................23
2.4.3 Operating Conditions ................................................................................................................23
2.4.3.1 Operating Conditions at Power-up / Power-down ........................................................23
2.4.3.2 Voltage Characteristics ................................................................................................23
2.4.3.3 Current Characteristics ................................................................................................24
2.4.3.4 IO Port Characteristics.................................................................................................24
2.4.3.5 12-bit ADC Characteristics...........................................................................................26
2.5 P2400 to n2420 Pin-outs ........................................................................................................................28
2.6 P2400 Enclosed ......................................................................................................................................29
2.6.1 P2400 Enclosed Dimensional Drawings ......................................................................................30
2.6.2 P2400-ENC Mounting Bracket (Optional) ....................................................................................31
2.6.3 Connectors & Indicators...............................................................................................................32
3.0 Configuration 34
3.1 Configuration/Unit Modes......................................................................................................................34
3.1.1 Command Mode...........................................................................................................................34
3.1.2 Data mode ...................................................................................................................................35
3.1.3 Network Type...............................................................................................................................36
3.1.4 Frequency Hopping - Channel Spacing .......................................................................................36
3.2 Point to Point Network ...........................................................................................................................37
3.2.1 Operating Modes / Unit Types......................................................................................................37
3.2.2 Configuration Using Factory Defaults...........................................................................................39
3.2.3 Retransmissions...........................................................................................................................43
3.2.4 Network Synchronization .............................................................................................................43
3.3 Point to Multipoint Network...................................................................................................................44
3.3.1 Operating Modes / Unit Types......................................................................................................44
3.3.2 Configuration Using Factory Defaults...........................................................................................47
3.3.3 Unit Addressing............................................................................................................................51
3.3.4 Retransmissions...........................................................................................................................51
3.3.5 Network Synchronization .............................................................................................................51
3.3.6 TDMA...........................................................................................................................................52
3.3.7 Peer-to-Peer.................................................................................................................................54
3.3.8 Everyone-to-Everyone .................................................................................................................55
© Microhard Systems Inc. Confidential 8
Table of Contents (continued)
4.0 Register/Command Reference 56
4.1 AT Commands ......................................................................................................................................56
A Answer .......................................................................................................................................56
g, G Spectrum Analyzer.....................................................................................................................56
In Identification ...............................................................................................................................56
Login AT Login.....................................................................................................................................57
N Advanced Spectrum Analyzer ....................................................................................................57
&FnLoad Factory Default Configuration............................................................................................58
&H0 Frequency Restriction (FHSS)....................................................................................................59
&H1 Repeater Registration (FHSS)....................................................................................................60
&V View Configuration .....................................................................................................................60
&W Write Configuration to Memory...................................................................................................60
4.2 Settings (S) Registers...........................................................................................................................61
S0 Power Up Mode..........................................................................................................................61
S2 Escape Code..............................................................................................................................61
S101 Operating Mode..........................................................................................................................62
S102 Serial Baud Rate ........................................................................................................................62
S103 Wireless Link Rate .....................................................................................................................62
S104 Network ID/Address ..................................................................................................................62
S105 Unit Address...............................................................................................................................63
S107 Static Mask.................................................................................................................................63
S108 Output Power .............................................................................................................................63
S109 Hop Interval ...............................................................................................................................64
S110 Data Format ...............................................................................................................................64
S111 Packet Min Size..........................................................................................................................65
S112 Packet Max Size.........................................................................................................................65
S113 Packet Retransmissions.............................................................................................................65
S115 Repeat Interval...........................................................................................................................65
S116 Character Timeout......................................................................................................................66
S118 Roaming ....................................................................................................................................66
S119 Quick Enter to Command Mode .................................................................................................66
S123 RSSI from Uplink/Master (dBm) ................................................................................................67
S124 RSSI from Downlink/Slave (dBm)...............................................................................................67
S130 No Sync Intake...........................................................................................................................67
S133 Network Type .............................................................................................................................67
S139 Compatible_921 at 345 ..............................................................................................................67
S140 Destination Address ...................................................................................................................68
S141 Repeaters Y/N............................................................................................................................68
S142 Serial Channel Mode (RS232/485).............................................................................................68
S150 Sync Mode .................................................................................................................................68
S151 Fast Sync Timeout .....................................................................................................................69
S153 Address Tag...............................................................................................................................69
S158 Forward Error Correction (FEC) Mode .......................................................................................69
S163 CRC Check on Diag Port ...........................................................................................................70
S167 Tx Enable ...................................................................................................................................70
S213 Packet Retry Limit ......................................................................................................................70
S214 Diagnostics Packet Retransmission ...........................................................................................70
S217 Protocol Type .............................................................................................................................70
S238 Hopping Mode............................................................................................................................70
S244 Channel Request Mode..............................................................................................................71
S248 Sync Timeout ............................................................................................................................71
S251 Master Hop Allocation Timeout ..................................................................................................71
© Microhard Systems Inc. Confidential 9
Table of Contents (continued)
4.3 Serial Interface Commands..................................................................................................................72
&Cn Data Carrier Detect (DCD) .........................................................................................................72
&Dn Data Terminal Ready (DTR).......................................................................................................72
&K Handshaking ..............................................................................................................................72
&Sn Data Set Ready (DSR)...............................................................................................................72
5.0 Installation 73
5.1 Path Calculation....................................................................................................................................75
5.2 Installation of Antenna System Components.....................................................................................76
5.2.1 Antennas ....................................................................................................................................76
5.2.2 Coaxial Cable.............................................................................................................................77
5.2.3 Surge Arrestors ..........................................................................................................................77
5.2.4 External Filter .............................................................................................................................77
Appendices
Appendix A: AT Command Quick Reference ...........................................................................................78
Appendix B: Settings (S) Register Quick Reference ...............................................................................79
Appendix C: AT Utility Firmware Upgrade Procedure.............................................................................80
Appendix D: AT Command Firmware Upgrade........................................................................................81
Appendix E: Development Board Serial Interface ...................................................................................82
Appendix F: Reference Design Schematic...............................................................................................83
Appendix G: Pico-MHX Adapter Card .......................................................................................................84
Appendix H: Approved Antennas..............................................................................................................86
© Microhard Systems Inc. Confidential 10
1.0 Overview
The Pico Series P2400 is capable of delivering high-performance, robust and secure wireless
serial communications in Point to Point or Point to Multipoint topologies.
The Pico Series is available as a tightly integrated OEM module, for the ultimate in design
integration. When properly configured and installed, long range communications at very high
speeds can be achieved.
Pico P2400 Series modules are a 2.4 GHz Frequency Hopping modem, providing flexible
wireless data transfer between most equipment types which employ a serial interface. The
modem type of the module is software selectable using AT commands.
The small size and superior performance of the Pico Series makes it ideal for many applica-
tions. Some typical uses for this modem:
1.1 Performance Features
Key performance features of the Pico Series P2400 include:
2.4 GHz ISM1Band Frequency Hopping Operation
up to 1W of output power (adjustable)
transparent, low latency link rates up to 345 kbps
communicates with virtually all serial based devices
wide temperature specification
32 bits of CRC, selectable retransmission and forward error correction
separate diagnostics port - remote diagnostics and online network control
ease of installation and configuration - the P2400 utilizes a subset of standard AT-style
commands, similar to those used by traditional telephone line modems
3.3V logic level compatibility
12.400-2.4835 GHz, which is license-free within North America; may need to be factory-configured
differently for some countries, contact Microhard Systems Inc. for details.
SCADA
remote telemetry
traffic control
industrial controls
remote monitoring
fleet management
GPS
metering
robotics
display signs
railway signaling
© Microhard Systems Inc. Confidential 11
1.0 Overview
1.2 Pico Series P2400 Specifications
Electrical/General
Supported Frequency: 2.400 - 2.4835 GHz
Spreading Method: Frequency Hopping, DTS
Error Detection: 32 bits of CRC, ARQ
Data Encryption: 128-bit AES Encryption (Requires export
(Optional) permit outside US and Canada.)
Forward Error Correction: Hamming, BCH, Golay, Reed-Solomon, Viterbi
Range: Up to 30 miles (50km)
Output Power: Up to 1W (20-30dBm, adjustable)
Sensitivity: See Table 1-1
Link Rate: 19.2 to 345 kbps
Serial Baud Rate: 300 to 230.4 kbps
Core Voltage: OEM: 3.6VDC is required for 1W
ENC: 7-30 VDC
Power Consumption: Sleep: < 1mA (Future)
(3.3VDC) Idle: 20mA
Rx: 45mA to 98mA
Tx Peak:2A
Rejection: Adjacent Channel@ 2400 MHz: 57dB
Alternate Channel @ 2400 MHz: 65dB
Environmental
Operation Temperature: -40oF(-40oC) to 185oF(85oC)
Humidity: 5% to 95% non-condensing
Mechanical
Dimensions: OEM: 26.5mm X 33mm X 3.5mm
ENC: 57mm X 95mm X 38mm
Weight: OEM: 5 grams
ENC: 120 grams
Connectors: Antenna: OEM: UFL
ENC: RP-SMA
Data: OEM: 80 Pin/Pad SMT
ENC: DB9
Caution: Using a power
supply that does not
provide proper voltage or
current may damage the
modem.
© Microhard Systems Inc. Confidential 12
1.0 Overview
1.2 Pico Series P2400 Specifications
Rate (kbps) Power Sensitivity (dBm) Bandwidth (kHz) Regulatory
19.2 1W -116 25 FCC/IC
56 1W -113 60 FCC/IC
115.2 1W -109 150 FCC/IC
172.8 1W -108 180 FCC/IC
230.4 1W -106 230 FCC/IC
276.4 1W -105 400 FCC/IC
345 1W -103 400 FCC/IC
19.2 100mW -115 25 FCC/IC/CE
56 100mW -110 60 FCC/IC/CE
115.2 100mW -109 150 FCC/IC/CE
172.8 100mW -108 180 FCC/IC/CE
230.4 100mW -106 230 FCC/IC/CE
276.4 100mW -105 400 FCC/IC/CE
345 100mW -103 400 FCC/IC/CE
Table 1-1: P2400 Specifications
© Microhard Systems Inc. Confidential 13
2.0 Hardware Description
The Pico Series P2400 Modems are available as OEM modules. This OEM version supplies
all the required raw signals to allow the unit to be tightly integrated into applications to
efficiently maximize space and power requirements. The Microhard development board can
provide a convenient evaluation platform to test and design with the module. (Contact
Microhard Systems for details)
Any P2400 Series module may be configured as a Master, Repeater or Remote in a PTP or
PMP Topology. This versatility is very convenient from a ’sparing’ perspective, as well for
convenience in becoming familiar and proficient with using the module: if you are familiar with
one unit, you will be familiar with all units.
Image 2-1: Pico P2400 Top View
Image 2-2: Pico P2400 Bottom View
© Microhard Systems Inc. Confidential 14
2.0 Hardware Description
2.1 Mechanical Drawings
The P2400 OEM Modules have an extremely small form factor as seen in Drawing 3-3 below.
Drawing 2-1: P2400 OEM Mechanical
Units: millimeters
33
26.5
3.68
2.31
33
3.5
1. Ground plane must be connected to GND for required heat dissi-
pation.
2. Due to manufacturing methods additional PCB material may be
present on the corners that cannot be removed. Designs should
allow for a small tolerance of this additional material, ± 0.25mm
Detail(A)
(2)
(2)
(2)
0.80
1.27 1.18
Bottom View
Ground Plane(1)
Detail(A)
22.35
28.70
30.01
2.16
19.85
1.50
3.41
See Notes(2)
© Microhard Systems Inc. Confidential 15
1.27
0.81
1.83
2.0 Hardware Description
2.1.1 Recommended Solder Mask (Pad Landing)
Drawing 2-2: P2400 Recommended Solder Mask
Units: millimeters
Detail(B)
22.35
30.02
0.99
19.86
28.70
27.99
34.34
Detail(B)
© Microhard Systems Inc. Confidential 16
19.91
30.0734.39
28.04
2.18
2.0 Hardware Description
2.1.2 Recommended Solder Paste Pattern
Drawing 2-3: P2400 Recommended Solder Paste
Units: millimeters
Detail(C)
Detail(C)
Detail(D)
Detail(D)
1.88
2.55
1.27
1.03
0.86
3.50
3.38
4.12
1.00
2.1.3 OEM Connectors
Antenna
All P2400 OEM Modules use an UFL connector for the antenna connection.
Data
The interface to the P2400 OEM module is a tight integration using 80 pad SMT connections.
© Microhard Systems Inc. Confidential 17
2.0 Hardware Description
2.1.4 SMT Temperature Profile
Drawing 2-4: Reflow Profile
2.1.5 SMT Baking Instructions (MSL)
The P2400 OEM modules must be baked before mounting, the following baking instruction should be fol-
lowed for the best results:
a) Minimum of 8 to 12 hours at 125°C +/- 5°C for high-temperature device containers.
b) Unused modules should be stored at ≤ 10% RH
0.0
60.0
120.0
180.0
240
300
165
217
60~100s 120s
TMAX=255oC
2.42(oC/s)
Temperature Zone Time Parameter
Preheat zone:
(40oC - 165oC)
- Heating rate:
0.5oC/s-2oC/s
Soak Zone:
(165oC - 217oC)
60 - 100s -
Reflow zone:
(>217oC)
120s Peak reflow:
255oC
Cooling zone Cooling rate: 2oC/s ≤ Slope ≤ 5oC/s
Table 2-1: Reflow Parameters
Zone Temperature (oC)
1 120
2 140
3 160
4 180
5 215
6 255
7 255
8 255
9 250
10 130
Chain Speed: 60cm/min
Table 2-2: Oven Temperature Profile
© Microhard Systems Inc. Confidential 18
2.0 Hardware Description
Drawing 2-4: Pico P2400 80-pin OEM Connection Info
2.2 Pico OEM Pin Descriptions
The above drawing depicts a top view of the P2400-OEM Module. The corner pads numbers
(1, 25, 41, and 65) are printed directly on the bottom of the PCB for easy identification.
A full description of the connections and function of each pin is provided on the pages that
follow.
Inputs and outputs are
3.3V nominal (3.0V min
—3.6V max) unless
otherwise specified.
GND
Vcc
Vcc
Vdd
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Pico Series
P2400
(Top View) CANRX
CANTX
1
GND
DNC
DNC
DNC
DNC
DNC
USR1 - GPS/1PPS
USR2 - Alarm
USR3
I/O1
I/O2
I/O3
I/O4
USR AO0
USR AN0
USR AN1
GND
USBDP
USBDM
RSSI LED1
RSSI LED2
RSSI LED3
Reserved
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24 40393837363534333231302928272625 41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
80 79 78 77 76 75 74 73 72 71 70 69 68
67 66 65
LED RX
LED TX
GND
GND
GND
GND
GND
DNC
DNC
DNC
DNC
DNC
Reserved
Reserved
GND
GND
GND
Reserved
!Wakeup_usr
!CONFIG
!RESET
RSMode
Reserved
Vbat
GND
GND
GND
Serial RING
Serial RxD
Serial TxD
Serial DSR
Serial CTS
Serial DTR
Serial DCD
Serial RTS
USR SCK
Reserved
Control RxD
Control TxD
GND
GND
© Microhard Systems Inc. Confidential 19
2.0 Hardware Description
Pin Name No. Description Dir
GND 1,17,25-26,39-
41,65-67,75-80
Ground reference for logic, radio, and I/O pins.
DNC 2,3,4,5,6 Reserved for factory use only.
USR1 –
GPS/1PPS
7 *Currently Not Supported. For Future Expansion* I
USR2 - Alarm 8 *Reserved for future use.* O
USR3 9 *Reserved for future use.* O
I/O1-4 10,11,12,13 Digital Input/output Pins. -0.3 to +3.6 V input, 3.3 V Output @ 3mA
maximum. *Future Use.*
I/O
USR_ANO0 14 *Currently Not Supported. For Future Expansion* O
USR_AN0
USR_AN1
15
16
Analog Inputs. 0 to 3V input, 12 bit *Future Use.* I
USBDP 18 *Currently Not Supported. For Future Expansion*
USBDM 19 *Currently Not Supported. For Future Expansion*
LED_1 (RSSI1) 20 Receive Signal Strength Indicator 1. Active high, cannot drive LED
directly. Requires current limiting resistor. 8mA maximum.
O
LED_2 (RSSI2) 21 Receive Signal Strength Indicator 2. Active high, cannot drive LED
directly. Requires current limiting resistor. 8mA maximum.
O
LED_3 (RSSI3) 22 Receive Signal Strength Indicator 3. Active high, cannot drive LED
directly. Requires current limiting resistor. 8mA maximum.
O
LED_RX 23 Active high output indicates receive and synchronization status.
Active high, cannot drive LED directly. Requires current limiting
resistor. 8mA maximum.
O
LED_TX 24 Active high output indicates module is transmitting data over the RF
channel. Active high, cannot drive LED directly. Requires current
limiting resistor. 8mA maximum.
O
Serial RING 27 Internally connected to GND through a 22kΩresistor. *Reserved for
future use.*
O
Serial RxD 28 Receive Data. Logic level input into the modem. It is recommended
to wire this pin out through a zero ohm resister to a header and
jumper block for external access to the serial port for modem
recovery procedures.
I
Serial TxD 29 Transmit Data. Logic level Output from the modem. It is
recommended to wire this pin out through a zero ohm resister to a
header and jumper block for external access to the serial port for
modem recovery procedures.
O
Serial DSR 30 Data Set Ready. Active low output. The DSR line may be used to
enable the transmitter of the RS485 driver chip.
O
Serial CTS 31 Clear To Send. Active low output. The CTS line may be used to
enable the transmitter of the RS485 driver chip. (P2400 Enclosed)
O
Serial DTR 32 Data Terminal Ready. Active low input. I
Serial DCD 33 Data Carrier Detect. Active low output. O
Serial RTS 34 Request To Send. Active low input. I
USR SCK 35 *Currently Not Supported. For Future Expansion* I
Table 2-1: Pico Series Pin Description
Caution: During power up
or reset, output pins from
the Pico are in an unknown
state. It is advised to use
pull up or pull down
resisters as appropriate.
© Microhard Systems Inc. Confidential 20
2.0 Hardware Description
Pin Name No. Description Dir
Reserved 36 *Reserved for future use.*
Control RxD 37 Diagnostics receive data. Logic level input from a PC to the module. Used for
Diagnostics Protocol, contact Microhard Systems for documentation.
I
Control TxD 38 Diagnostics transmit data. Logic level output from module to a PC. Used for
Diagnostics Protocol, contact Microhard Systems for documentation.
O
Vbat 42 Input voltage sensing analog input line, up to 60VDC maximum. Used to
measure the main supply voltage. User design must add a 10kΩ1% 1/16W
resistor in series.
I
Reserved 43 *Reserved for future use.*
RSMode 44 Internally connected to GND through a 10kΩresistor. *Reserved for future
use.*
O
!RESET 45 Active low input will reset the module. I
!CONFIG 46 Active low input signal to put module into default serial interface (RS232) and
default baud rate (9600/8/N/1) during power up. Pull high or leave floating.
I
!Wakeup_usr 47 *Currently Not Supported. For Future Expansion* I
Reserved 48 *Reserved for future use.*
Reserved 49 *Reserved for future use.*
CANTX 50 *Currently Not Supported. For Future Expansion*
CANRX 51 *Currently Not Supported. For Future Expansion*
Reserved 52-61 *Reserved for future use.*
Vdd 62 Positive voltage supply voltage for the digital section of the module (3.3V). I
Vcc 63,64 Positive voltage supply voltage for the radio module (3.3V). The Vcc lines are
internally connected together. Vcc of 3.6V is required for 1W Tx power.
I
Reserved 68,69 *Reserved for future use.*
DNC 70-74 Reserved for factory use only.
Table 2-1: Pico Series Pin Description (continued)
All serial communications signals are logic level (0 and 3.3V). DO NOT connect RS-232 level
(+12, -12VDC) signals to these lines without shifting the signals to logic levels.
Caution: During power up
or reset, output pins from
the Pico are in an unknown
state. It is advised to use
pull up or pull down
resisters as appropriate.
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