Nayar Systems GSR Lite User manual

GSR Lite
1 — ast update: Aug 17, 2021
Nayar Systems
Copyright © 2021 Nayar Systems

Table of Contents
1. Manufacturer note ............................................................................................................................. 1
2. Device description............................................................................................................................. 2
2.1. Front connections....................................................................................................................... 4
2.2. Top side EDs ........................................................................................................................... 5
2.3. Rear connections ....................................................................................................................... 7
2.4. Side connections........................................................................................................................ 8
3. Installation and start-up .................................................................................................................... 9
4. SMS configuration........................................................................................................................... 11
5. Technical support............................................................................................................................ 15

1. Manufacturer note
This manual describes good practices recommended by Nayar Systems in order to ensure an optimal
performance in safe conditions. Any improper manipulation, damage caused during the installation of the
device and, in general, an incorrect use not explained in this document may void the warranty.
The device must be manipulated only by qualified and skilled professionals with specific technical
knowledge to avoid a failure of the device due to an inappropriate manipulation.
The optimal performance of the device can be ensured in good working conditions. This does not
include interferences, network signal attenuation due to placing the antennas in an improper location like
for example surrounded by metallic surfaces, etc.
Nayar Systems is not responsible for damage as a result of ignoring the indications and
recommendations included in this manual.
The device must not be wet nor installed in humid places.
Operating Humidity 10% – 90%
Optimal working temperatures are between 0ºC and 40ºC.
*
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2. Device description
GSR · GSM Smart Router® Lite is a device specially designed for elevators and IoT networks. It
integrates 4G technology,WiFi and additional connections with the purpose of turning the elevator into
an internet device.
Inside the box
• GSR · GSM Smart Router® ite
• Power supply
• Wifi antennas x2
• 4G antennas x2
Technical specifications and connections
• CPU architecture: RAMIPS
• RAM: 128 MB
• Flash: 16 MB
• Wifi: 150M 2.4Ghz wifi, 802.11 b/g/n support
• SIM slot
• Mini PCI Express 4G modem
• RJ45 Ethernet 10/100Mbps (5 ports)
• USB Host (0.5A)
• SMA F connector for 3G/4G antenna (2 connectors)
• RP-SMA F connector for WiFi antenna (2 connectors)
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Dimensions
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2.1. Front connections
•LAN ports: 4× 10/100/100M – provides connectivity to other devices
•WAN port: 1× 10/100/100M – can receive connectivity from another device
•SMART button:
◦ Offline Wifi – short press between 0.5 and 2 seconds. GSR will generate a new wifi hotspot
visible as “GSR_F85E3C…” displaying the complete ID for that particular device. Connect
with your smartphone and Nayar Systems APP for local configuration. This network won’t
provide access to the internet. The password for this network is 12345678.
◦ Factory reset – hold pressed between 15 and 60 seconds. All EDs will turn on and off after
the device is reset to factory settings.
•DC IN: Input for the power supply. When possible, the device must be always powered with the
original power supply. In case the original power supply can not be used, it is recommended to use
a 12V and 2A power unit.
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2.2. Top side LEDs
Signal LEDs
Very low signal strength / error
ow signal strength CSQ 10-14/31
Average signal strength CSQ 15-20/31
High signal strength CSQ 21-31/31
Network LED
Device not registered in any network
Device registered in a 2G network (slow blinking)
Device registered in a 3G network (fast blinking)
Device registered in a 4G network
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Sync LED
Configuration changed via platform or SMS / PIN error (blinking)
Wifi LED
No active wireless network
Active wireless network, by default visible as “GSR”
Data transmission in progress (blinking)
USB LED
No SIM card detected / no mobile network detected
Mobile network detected, no registration (slow blinking)
Mobile network detected, registration successful (fast blinking)
Power LED
Device not powered
Device powered ON
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2.3. Rear connections
•USB port: compatible with USB 2.0 (0.5A) devices like USB-serial converters, USB HUB, binary
acquisition card, etc. Nayar Systems recommends using only USB devices provided by the
company given in order to ensure that GSR® ite and the platform operate correctly.
•SD card slot: GSR® ite does not use this expansion given that all data is processed and sent to
the cloud to ensure the highest level of security.
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2.4. Side connections
Side connections
•Wifi connectivity: the antennas provided with the device must be connected to the indicated
connectors in order to use WiFi capabilities. Always use both antennas labeled as 2.4G.
•Mobile network connectivity: the antennas provided with the device must be connected to the
indicated connectors in order to use WiFi capabilities. Always use both antennas labeled as 4G.
•SIM slot: place for a 2FF size Mini SIM card. It does not work with microSIM (3FF) nor nanoSIM
(4FF) cards. It must be inserted as described in the following image
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3. Installation and start-up
1. Put the device in a comfortable place for manipulation.
2. Insert a SIM card as indicated.
3. Connect the 4G antennas. They must always be connected to the device.
4. Connect the WiFi antennas when connectivity for other devices is needed.
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5. Connect the power supply to a wall plug and DC IN.
6. Wait until the network ED is ON / blinking to confirm the device has internet access.
7. In case the device has a pending configuration or update you may see the Sync ED blinking
and the device could reboot. Wait until this procedure is complete and after that moment the
device will be fully operational.
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4. SMS configuration
GSR’s configuration parameters can be programmed sending SMS messages to the device. The
accepted format is as follows:
password,command,command, ... ,command
A sequence is created starting with the password and continuing with a list of commands separated by
commas ( , ). The default password is 12345.
The commands used for the SMS configuration are:
•Sis used for configuration. The structure begins with ( S ), followed by colon ( : ), the parameter to
set, colon again ( : ) and the value assigned to that parameter.
•Cis used for running commands. The structure begins with ( C ), followed by colon ( : ) and the
command to run. Certain commands also use values, in these cases add colon again ( : ) and set
the value.
• Add Wat the end of an SMS to save the changes introduced with that particular message. In case
this command is not added, the changes will be lost after rebooting the device.
•Gis used for consulting a parameter. The structure begins with ( G ) followed by colon ( : ) and the
parameter to consult. A message will be received with its current value.
Here follows an example:
12345,S:$apn:”apnaddress.com”
Password – 12345
Command – S
Parameter – $apn
Value – “apnaddress.com”
With these commands can be performed the following actions:
Consulting a parameter
G command is used for consulting (to consult) parameters like (as shown) in the following example:
12345,G:$apn
Answer:
["apnaddress.com"]
APN configuration
The APN the device uses can be configured with the following parameters:
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•$apn to set up APN address
•$apnu to set up user
•$apnp to set up password
The following SMS is an example of how to configure correctly APN settings:
12345,S:$apn:"apnaddress.com",S:$apnu:"user",S:$apnp:"password"
Response:
["OK","OK","OK"]
This example sets the APN apnaddress.com ($apn) with the user user ($apnu) and the password
password ($apnp). These values must be inside quotation marks ( “ ) when setting up APN configuration.
WiFi connectivity
GSR is programmed to provide wireless internet connectivity only to Advertisim devices. As soon as an
Advertisim device detects a GSR wireless network it will connect automatically. There is no need to
perform any previous or additional settings to Advertisim nor GSR given that the connection is
established automatically. GSR allows to enable or disable its WiFi network with the following SMS:
12345,C:wifi:1 enable WiFi
12345,C:wifi:0 disable WiFi
The response in both cases is:
["OK"]
Status report
The device features a SMS report. It shows:
• Device ID
• Signal strength (CSQ: 0 – 31)
• ICC
• IMEI
• VPN connection status
The report can be requested with the following SMS:
12345,C:rp
Example response:
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[{"id":"gsr.a8404118569f","modem.csq":17,"modem.icc":"8934075100252","modem.im
ei":"863786532","n4m.online":true}]
Where:
•"id": device identification – MAC
•"modem.csq": mobile networks signal strength. Values oscillate (eliminar) between 0 and 31. If it
shows (The value) 99 it means that there is (indicates) an error in the network.
•"modem.icc": SIM card ICC identifier.
•"modem.imei": modem IMEI identifier.
•"n4m.online": connection status to net4machines VPN. Its values can be true or false.
Device reboot
The device can be rebooted with the following SMS:
12345,C:rbt
Answer:
["OK"]
All EDs will blink and the device will reboot.
Software reboot
In order to reboot only the internal software, the following SMS must be used:
12345,C:rst
Answer:
["OK"]
All EDs will turn on for a few seconds and then off until the software is running again.
Factory reset
The device can be set to its factory settings with the following SMS:
12345,C:factory
Answer:
["OK"]
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After the command is executed, the device will be automatically reflashed, rebooted and set to its factory
configuration.
NOTE: in case the configuration had custom settings programmed via SMS or the
platform, all changes will be lost. This includes custom APNs and internet access cannot
be assured. In case this is your situation, consider reconfiguring your custom APN.
!
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5. Technical support
In case of any incidence with your GSR device or service when needed technical support, please contact
Nayar Systems technical support team:
[email protected]
Troubleshooting
Issue Cause Solution
All EDs are off after the power
cable is plugged
The power supply is
damaged
Try to power the device with a different
power supply
The power input is not
adequate
Make sure the voltage provided is 12V and
2A
Mobile network signal ED does
not light ON
SIM card is not registered
correctly Take out and put in again the SIM card
Antennas not connected
correctly / mobile network
signal is not strong
enough
Make sure the network antennas are
connected as described in the manual /
change the position of the network signal
antennas
The SIM card is not
activated
Verify the state of the SIM card and its
services
The SIM card has a PIN
code
Take out the SIM card, insert it into a
mobile phone and deactivate the PIN code
The SIM card is not
inserted correctly
Insert the SIM card following the
indications of the manual
The SIM card is
damaged
Insert the SIM card in a mobile phone to
check if the card is working
Mobile network EDs show low
signal
Antennas not connected
correctly / mobile network
signal is not strong
enough
Make sure the network antennas are
connected as described in the manual /
change the position of the network signal
antennas
USB device not working Not compatible USB
device
Make sure you’re using original USB
devices provided by Nayar Systems
Device not configured
correctly in the platform
Unlink and link again the element following
the connection wizard in the platform
Ethernet device has no connectivity GSR® ite has no
internet access
Make sure you’re using a SIM card with
data plan and that it’s activated
There is a network
security restriction
Contact [email protected] in
order to solve any particular case
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