Cinterion PLS8-X only connects to 2G networks | Telit Cinterion IoT Developer Community
March 30, 2016 - 5:44pm, 4414 views
I am using the PSL8-X in a Android embedded product, using the propetary Gemalto RIL. It is working fine, but I am unable to connect to 3G o 4G networks.
I am ussing the PHS8_Adapter, with the same jumper configuration as shown here: http://www.acte-uk.com/files/7313/9601/9356/PHS8_Adapter_bd.jpg. I have connected the antenna to the right most connector.
After debugging the issue for a while, it seems like the modem itself is only detecting 2G networks. I verified that the AT+WS46 is 25 (3GPP Systems, GERAN, UTRAN and E-UTRAN), but issuing AT+COPS=? only returns 2G networks.
I have tried to change the value of AT+WS46 setting: the modem answers AT OK, but the setting is unchanged.
This is the output on a session on a linux box, without any other process interfering, trying to somehow detect other networks (no 2G):
----------------------------------------------------
root@box:~# microcom /dev/ttyACM1
AT+WS46?
ERROR
AT+COPS=?
+COPS: (2,"vodafone ES","vodafone ES","21401",0),(3,"Orange SP","ESPRT","21403",0),(3,"YOIGO","YOIGO","21404",0),(3,"Movistar","Movistar","21407",0),,(0,1,2,3,4),(0,1,2)
OK
AT+WS46?
+WS46: 12
OK
AT+WS46=25
OK
AT+WS46
ERROR
AT+WS46?
ERROR
AT+COPS=0
ERROR
AT+COPS=0
OK
AT+COPS?
+COPS: 0
OK
AT+COPS=?
ERROR
AT+COPS=?
+COPS: (2,"vodafone ES","vodafone ES","21401",0),(3,"Orange SP","ESPRT","21403",0),(3,"YOIGO","YOIGO","21404",0),(3,"Movistar","Movistar","21407",0),,(0,1,2,3,4),(0,1,2)
OK
^SSTN: 137
AT+WS46?
+WS46: 25
OK
AAAT+COPS=?
+COPS: (2,"vodafone ES","vodafone ES","21401",0),(3,"Orange SP","ESPRT","21403",0),(3,"YOIGO","YOIGO","21404",0),(3,"Movistar","Movistar","21407",0),,(0,1,2,3,4),(0,1,2)
OK
AT+WS46?
+WS46: 25
OK
AT+COPS=0,,,2
OK
AT+WS46?
+WS46: 22
OK
AT+COPS?
+COPS: 0
OK
AT+COPS=?
+COPS: (1,"vodafone ES","voda ES","21401",0),(3,"YOIGO","YOIGO","21404",0),(3,"Movistar","Movistar","21407",0),(3,"Orange SP","ESPRT","21403",0),,(0,1,2,3,4),(0,1,2)
OK
AT+COPS=0,,,7
OK
AT+COPS=?
+COPS: (1,"vodafone ES","voda ES","21401",0),(3,"Orange SP","ESPRT","21403",0),(3,"Movistar","Movistar","21407",0),(3,"YOIGO","YOIGO","21404",0),,(0,1,2,3,4),(0,1,2)
OK
AT+WS46=?
+WS46: (12,22,25,28,29)
OK
AT+WS46?
+WS46: 28
----------------------------------------------------
Using other cellular modems in the same place with the same SIM card works on 2G, 3G and 4G networks, so I have discarded those factors.
1- Is there any other AT command which may be necessary in order to make the modem detect 3G and 4G networks?
2- Where can I find the AT Command Set document for the Cinterion PLS8-X?
3- Could this be caused by using a worng/bad quality antenna?
Thanks
Hi,
PLS8-X is a product dedicate for USA.
Reading the attached log I can see you are in Spain.
The supported bands for PLS8-x are:
Penta Band LTE: 700/700/850/AWS (1700/2100)/1900 MHz; FDD-Band (13,17,5,4,2)
Tri Band UMTS (WCDMA): 850/AWS (1700/2100)/1900 MHz; FDD-Band (5,4,2);
Quad Band GSM/GPRS/EDGE: 850/900/1800/1900 MHz
the 4G and 3G bands of this product are not supported in Europe neither in Spain.
you can request the PLS8-X manual to your HQ.
Regards
ALopez
Somewhere over the rainbow!!! Looking for the Oz Land!!!
Thanks for your quick answer!
Hello,
AT+WS46 command is only for reading the current status of the network selection. Writing has no effect according to the documentation.
The main GSM/UMTS/LTE antenna is on the left on the picture. UMTS/LTE Rx diversity/MIMO antenna is on the right.
Please check the AT^SCFG? output for "Radio/Band" setting.
Generally you should get the documentation form the module distributor. Pleas check the ATI1 reply to get the module's release and firmware version and I can send you the document.
Regards,
Bartłomiej
Thanks for the information.
This is the AT1reply
ati1
Cinterion
PLS8-X
REVISION 03.003
A-REVISION 01.000.00
OK
Could you send me the document? Thanks again
Hello,
I've checked that release 3 that you have is not yet officially released. So you have some pre-release sample. And I don't have access to that documentation and can't send it to you. You need to ask the distributor from whom you have this module. I'm sorry for the misleading. I could only send you the document for release 2.
Regards,
Bartłomiej
That's right, I am asking my distributor.
Anyways, could you send me document for release 2? I don't know how different they will be, but I am guessing it could still be helpful.
Thanks
Hello,
You should have got the mail.
Regards,
Bartłomiej