NimbeLink NL-SWDK2 User Manual

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NL-SWDK2 User Manual

NimbeLink Corp

Updated: January 2021

PN 1002633 REV 1

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Page 2: Table Of Contents
Test Serial Communication PDP Context APN Configuration Verizon Cat1+ Devices LTE M1 and Non-Verizon LTE Cat 1+ Device APN Configuration Signal Quality Network Registration Activate PDP Context Next Steps Version Information PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 3: Introduction
SWDK2, or by its part number, NL-SWDK2. 1.1 Contact Information NimbeLink’s goal is to make integrating Skywire™ modems into end-user applications as easy as possible. Please send any feedback, documentation requests, or technical support questions to NimbeLink’s product support team at: product.support@nimbelink.com...
Page 4: Kit Contents
2x Taoglas TG.30.8113 Antennas 1x NimbeLink AT&T SIM 1x 12V Power Supply 1x Mini-B USB Cable The development kit does not include a Skywire modem. Modems must be purchased separately. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 5: Getting Started
The table below contains a list of common APNs and their respective carriers. It is important to use the APN that corresponds to the proper carrier. Failure to do so will result in failed cellular network connections. Customers using non-NimbeLink data plans will need to contact their carriers for APN information.
Page 6: Development Kit Configuration
The USB to serial interface will be automatically selected when a USB connection is powered on J14 and will override the selection switch for the other UART interfaces. This feature may be bypassed, if desired, by modifying the circuit board. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 7: Modem Power On
Users may also manually turn the modem on or off by disabling the auto turn on circuit by setting SW1-3 to the off position and then use SW2, labeled "ON BTN" on the circuit board, to manually pulse the modem's ON_OFF line low. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 8 Users may use SW2 to turn off the modem or to turn the modem back on after a shutdown when the automatic turn on circuit is enabled. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 9: Connect To A Pc
PCB. Some Skywire modems have onboard Verizon SIMs. If the user is using the onboard SIM for Verizon service this step can be skipped. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 10: Modem Placement & Antenna Connectors
SWDK2's Skywire socket. ⚠ M ake sure that the modem's pins are properly aligned in the Skywire socket. Inserting the modem into the Skywire socket incorrectly can damage the modem. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 11 U.FL connectors attached is below: A common issue is accidentally inserting the modem with pins misaligned by one row. Check pin alignment BEFORE applying power to prevent modem damage. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 12: Connect Lte Antennas
Arduino interface's VIN pin. For this exercise, the development kit should be powered through the board's barrel jack connector using the provided 12V DC power supply. When power is applied the D4 LED will illuminate. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 13: Connect Usb
Most modems will turn on with a 1 second press and hold of the ON BTN, but some modems, such as the TC4EU modem, may require 5 seconds. Please refer to the modem's datasheet for details on its ON_OFF timing. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 14: At Commands
S etup>Serial Port . They can also be updated in Putty by navigating Connection>Serial. S erial Settings should be as follows (these are the default settings): Baud Rate: 115,200 bps Data: 8bit Parity: none Stop: 1bit Flow Control: none PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 15: Test Serial Communication
Where x is the functionality parameter. If it is set to a value other than 1 then the user will need to put the modem back into full functionality mode with the AT+CFUN=1 command. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 16 SIMs), that cellular functionality is enabled (AT+CFUN=1), and verify that the SIM does not require a PIN. If it still responds with an error, and further assistance is needed, please contact NimbeLink for assistance. PN 1002634 REV 1...
Page 17: Pdp Context Apn Configuration
Most devices should use IPV4V6 for their data plan, but this will depend on what IP type the cellular data plan is configured to support. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 18: Lte M1 And Non-Verizon Lte Cat 1+ Device Apn Configuration
Verify that the APN has been changed by checking the PDP context configuration. Type the command followed by the enter key: AT+CGDCONT? The modem should respond with: +CGDCONT: 1,"<IPTYPE>","<APN>","",0,0,0,0 PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 19: Signal Quality
-80 ≥ RSRP ≥ -90 Good -85 > RSSI ≥ -100 -8 ≥ RSRQ ≥ -12 -90 ≥ RSRP ≥ -100 Fair Poor RSSI < -100 RSRQ <-12 RSRP < -100 PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 20 Excellent: -51 dBm or greater Not known or not detectable The modem's bit error rate will only be detectable during data transfers and will be not known when the modem is idle. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 21 (SINR). Logarithmic value of SINR. Values are in 1/5th of a dB.The range is 0-250 which translates to -20dB -+30dB. <lte_rsrq> An integer indicating the reference signal received quality (RSRQ) in dB. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 22 255 - not known or not detectable or if the current serving cell is not a UTRA cell <ecno> Ratio of the received energy per PN chip to the total received power spectral density (see 3GPP TS 25.133 subclause). For 3G networks only. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 23 -46 dBm ≤ rsrp < -45 dBm -45 dBm ≤ rsrp < -44 dBm -44 dBm ≤ rsrp Not known or not detectable or if the current serving cell is not a EUTRA cell PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 24: Network Registration
2G GSM AT+CREG? +CREG: 0,<stat> <stat> is the network registration status. The values of stat are available in the modem's AT command manual and are also listed below for convenience. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 25 Note: I f the modem's AT+CEREG response is 4 (unknown), then it may have registered on a 2G network. Make sure to check the AT+CREG response in this event. PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 26 Network Operator name per <format> setting. <Act> Access technology selected. 0 - GSM 1 - GSM Compact 2 - UTRAN 7 - E-UTRAN (LTE Cat 1+) 8 eMTC (LTE CAT M1) 9 LTE NB-IoT PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.
Page 27: Activate Pdp Context
If the error persists please check the signal quality, network registration status, and APN configuration or contact NimbeLink for assistance. To verify that the modem activated the PDP context and pulled an IP address from the...
Page 28: Next Steps
SMS messaging, and PPP and other OS networking examples, are available for each Skywire modem on their product page under the application notes section. ● Skywire Modem Overview Page PN 1002634 REV 1 © NimbeLink Corp. 2021. All rights reserved.

NimbeLink NL-SWDK2 User Manual

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Introduction

Getting Started

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