Related Manuals for NimbeLink Skywire NL-SW-HSPA Series
Summary of Contents for NimbeLink Skywire NL-SW-HSPA Series
- Page 1 Troubleshooting Guide for Skywire ® Modems NimbeLink Corp Updated: April 2018 PN 30106 rev 3 NimbeLink Corp All Rights Reserved...
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Page 2: Table Of Contents
Home Network? Data Plan Issue? LTE and GSM Modems Cellular Reception SIM card present? PDP Context Set? Known APN values Go.NimbeLink.Com Activations Public Dynamic Public Static Private Dynamic/Static Data Plan Issue? PN 30106 rev 3 NimbeLink Corp All Rights Reserved... - Page 3 VBUS Pin Host Software Windows Environments Linux Environments UART Connectivity Troubleshooting UART Signal Overview BAUD Rate DTR and RTS Signals PPP Link Troubleshooting Scripts Failing Use Picocom Cellular Reception DTR and RTS PN 30106 rev 3 NimbeLink Corp All Rights Reserved...
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Page 4: Introduction
UART: Echos back AT commands after roughly 1-2 seconds USB: Windows PC recognizes USB COM ports after 1-2 seconds COM port 1: Primary AT command interpreter COM port 2: Telit diagnostic interface (firmware updates) PN 30106 rev 3 NimbeLink Corp All Rights Reserved... -
Page 5: Sw-Lte-Txxx
UART: Echos back AT commands after roughly 5-8 seconds USB: Windows PC recognizes USB COM ports after 4-5 seconds COM port 1: Primary AT command interpreter (SierraWireless CDC/ACM) COM port 2: CDC_NCM PN 30106 rev 3 NimbeLink Corp All Rights Reserved... -
Page 6: Connectivity Troubleshooting
PCB silkscreen. The connector marked X1 is the primary antenna port and MUST have an antenna connected. X2 is the diversity antenna port and does not affect RSSI! PN 30106 rev 3 NimbeLink Corp All Rights Reserved... -
Page 7: Rf Connectors
These results will not be the same for your custom device. If you need help with your antenna, please contact the antenna manufacture or Nimbelink. PN 30106 rev 3... -
Page 8: Registration Troubleshooting
CDMA devices must be provisioned on the cellular network. Try provisioning the modem by issuing the ATD*22899; command: ATD*22899; Good Response: #OTASP: 0 #OTASP: 1 #OTASP: 2 NO CARRIER Failed Response: #OTASP: 0 PN 30106 rev 3 NimbeLink Corp All Rights Reserved... -
Page 9: Home Network
NimbeLink, contact product.support@nimbelink.com with your MEID and describe the problem you are experiencing, specifically provisioning failing and NimbeLink team members will look into the line of service using our tools. 4.3 LTE and GSM Modems For LTE and GSM devices (NL-SW-GPRS, NL-SW-HSPA*, NL-SW-LTE-*) the CGDCONT must be set AND the network registration command is used to test network registration. -
Page 10: Cellular Reception
Use: "C1.KOREM2M.COM" if you activated your NimbeLink NL-SIM-TMO T-Mobile service SIM card at go.nimbelink.com. Use: "10569.MCS" if you activated your NimbeLink NL-SIM-ATT AT&T service SIM card at go.nimbelink.com. PN 30106 rev 3 NimbeLink Corp All Rights Reserved... -
Page 11: Public Dynamic
Provide the IMEI and SIM ID of your device and SIM card to your Verizon sales rep or MVNO provider and they can look up to see if there is an active cellular data plan. If you have purchased cellular service from NimbeLink, contact product.support@nimbelink.com... -
Page 12: Usb Connectivity Troubleshooting
Telit based modems: http://nimbelink.com/wp-content/uploads/2014/08/Telit_USB_Driver_Win_Deskto p_UF.00.01.zip Linux Environments 5.2.2 Linux and Mac environments may need to be modified in order to provide access to the USB and/or UART connections from the modems. PN 30106 rev 3 NimbeLink Corp All Rights Reserved... -
Page 13: Uart Connectivity Troubleshooting
230400 and issue the command: AT&W The AT&W command will save the baud rate setting in non-volatile memory, so you can then take the modem and put back into your hardware. PN 30106 rev 3 NimbeLink Corp All Rights Reserved... -
Page 14: Dtr And Rts Signals
6.3 DTR and RTS Signals Use a voltmeter to measure the actual voltage on these signals on the modem connector. Resistor pull-downs may not be sufficient. Some NimbeLink reference designs that are targeted for 2G/3G Modems use 10K pulldowns on these signals to terminate them, however, newer LTE modems require stronger pulldowns to ensure the DTR and RTS signals are at valid low levels. -
Page 15: Ppp Link Troubleshooting
[LCP ConfAck id=0x1 <asyncmap 0x0> <auth pap> <magic 0xa1d5378d> <pcomp> <accomp>] rcvd [LCP ConfAck id=0x1 <asyncmap 0x0> <magic 0xf558d6b4> <pcomp> <accomp>] sent [LCP EchoReq id=0x0 magic=0xf558d6b4] sent [PAP AuthReq id=0x1 user="beaglebone" password=<hidden>] rcvd [LCP DiscReq id=0x2 magic=0xa1d5378d] PN 30106 rev 3 NimbeLink Corp All Rights Reserved... -
Page 16: Dtr And Rts
7.2 DTR and RTS Use a voltmeter to measure the actual voltage on these signals on the modem connector. Resistor pull-downs may not be sufficient. Some NimbeLink reference designs that are targeted for 2G/3G Modems use 10K pulldowns on these signals to terminate them, however, newer LTE modems require stronger pulldowns to ensure the DTR and RTS signals are at valid low levels. - Page 17 [IPCP ConfReq id=0x5 <compress VJ 0f 01> <addr 0.0.0.0> <ms-dns1 10.11.12.13> <ms-dns2 10.11.12.14> <ms-wins 10.11.12.13> <ms-wins 10.11.12.14>] IPCP: timeout sending Config-Requests sent [LCP TermReq id=0x2 "No network protocols running"] sent [LCP TermReq id=0x3 "No network protocols running"] Connection terminated. Modem hangup PN 30106 rev 3 NimbeLink Corp All Rights Reserved...
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