Professional grade 3G & 4G router series with IO, WiFi, 2 LAN ports and much more

QUARTZ Series 3G & 4G industrial routers


  • 3G / UMTS version - 850/1900/2100 MHz bands
  • 4G / LTE version- 4G BANDS: 800/850/900/1800/2100/2600MHz, 3G Bands: 850/900/2100MHz
  • 2 x LAN ports, 3 x I/O ports
  • RS232 / Console port (RS485 available in QUARTZ485 versions)
  • Industrial robust metal design - DIN rail mount
  • Dual SIM for failover / back up between networks
  • WiFi, 802.11/b/g/n
  • OpenVPN
  • Remotely configurable via web interface

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 The Siretta QUARTZ router series is a range of professional grade, high speed industrial cellular routers. The QUARTZ series is offered in 3G / WCDMA/UMTS and 4G / LTE forms giving reliable, secure and high speed wireless connectivity.

The QUARTZ router series is designed for use in industrial environments needing high performance, reliable, 'always-on' performance. The range has  a  robust hard enclosure that is resistant to electromagnetic interference as standard.  The QUARTZ range is designed for remote management, telemetry, condition monitoring, CCTV, ATMs, vending machine and other M2M applications.


The QUARTZ router range has a dual SIM facility, RS232/ console port and 3 x I/O ports as standard. It also has a number of standard options, such as Wifi, GPS, 1xWAN + 1xLAN interface etc making the QUARTZ range one of the best to specify exactly your specification of router for low MOQs.  QUARTZ485 versions have the console port configured as full duplex RS485

Additionally, QUARTZ routers are available, as standard with or without an accessory kit comprising: Wifi + GSM antennas, PSU and LAN cable. VPN features can also be configured in the QUARTZ range enabling utilization of a virtual private network service over the 3G / 4G networks and  designed for the stresses and workload of a modern industrial or commercial environment.

Part Numbers

routeCONNECT routers part numbers

Built for OEM

For OEM/Systems integrators Siretta can offer the QUARTZ router on its own for you to supply your own power/RF cabling and antennas. 

Typical applications:

  • EPOS failover backup
  • Kiosks and digital signage
  • CCTV over IP
  • In-vehicle WiFi
  • 3G/4G for construction sites and temporary offices
  • Remote energy monitoring
  • 3G/4G failover for satellite broadband



For stock availability please call +44 1189 769 014
Quartz router 1


QUARTZ series 3G router with 2 x LAN, WiFi, Dual SIM, 3 x IO, RS232 console port
1+ £235.77
5+ £226.34
Quartz router 3D


QUARTZ series 3G router with 1xLAN+1xWAN, WiFi, Dual SIM, 3 x IO, RS232 console port
Please call for pricing
01189 769014
QUARTZ-W22-UMTS(EU) with Accessories


QUARTZ series 3G router with 2 x LAN, WiFi, Dual SIM, 3 x IO, RS232 console port + Antennas, PSU, LAN cable
1+ £246.27
5+ £236.84
Quartz router - antenna and power


QUARTZ series 4G router with 2 x LAN, WiFi, Dual SIM, 3 x IO, RS232 console port
1+ £328.02
5+ £314.90
Quartz router - antenna and power


QUARTZ series 4G router with 2 x LAN, WiFi, Dual SIM, 3 x IO, RS232 console port + Antennas, PSU, LAN cable
1+ £338.52
5+ £325.40
Quartz router 3D


RS485 version of QUARTZ 3G router with Wifi and Dual SIM socket
Please call for pricing
01189 769014
Quartz router 3D


RS485 version of QUARTZ 4G router with Wifi and Dual SIM socket
Please call for pricing
01189 769014



Downloads & Software

Application Note


Hardware Manual

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Using cellular networks to enhance traffic and transport systems

The delivery and collection of information has brought significant improvements, increased efficiency and better use of resources within the transport and traffic management arena. Today’s developments have embraced the Internet of Things (IoT), cloud computing and Machine-to-Machine (M2M) communications to the benefit of all. Cellular connectivity offers many advantages over short range technology and is often the only sensible way forward. Cellular 2G/3G and now 4G LTE provides a sound base for new applications and good network coverage in urban areas plus long range coverage in rural areas. The benefits to the community are many – knowing where parking space is available, when a bus is due to arrive, and motorway messaging to help plan journeys are just a few. For service providers M2M provides fast return on investment and enables new revenue streams via additional service offerings. The introduction of 4G LTE communications and its adoption within the industrial world has opened up a whole new range of applications including on-board WiFi, video streaming and surveillance. Siretta design M2M devices help shape the future of internet connected traffic management and transportation systems. Typical applications include: • On-board WiFi for busses/coaches/trains • Fleet management - Vehicle tracking / telematics and monitoring vehicle and driver behaviour - black-box connectivity for insurance purposes • Traffic management – signalling and signage / smart motorways / toll charging systems • CCTV – traffic monitoring, location security and safety surveillance • Car park ticketing/remote monitoring • Roadside environmental monitoring • Remote access • Electric vehicle charging stations


5 ways to improve 2G and 3G signal strength for M2M devices

Systems are only as reliable as their weakest link and when it comes to M2M wireless -the weakest link is poor, intermittent signal strength. Low signal levels result in poor system performance, slow response times and reliability issues. For system installers and other M2M vendors, how do you ensure the very best 2G or 3G signal strength?

1. Checking the 2G/3G signal strength
Typically most M2M cellular systems will simply not work, or the performance is substantially degraded by low signal strength. This may result in data not being transmitted, irregular polling success or complete lack of connection. Some wireless devices (routers / modems) have a signal strength indication facility but these only report on the connection available to them.

An independent check of signal strength can be performed using a 2G / 3G signal strength analyser such as the Siretta SNYPER. These testers are hand held, network independent, and analyse the signal strength for all available networks. SNYPER can be connected to the deployed antenna to check the actual signal strength of the installed system.

2. Which network SIM to use?
Depending on location you may find one cellular network has a better signal strength than the other networks. The SNYPER product checks this for you without the need to buy a SIM from each network. Once the network has been decided the next step is to optimise the antenna and RF cables routing back to the M2M device.

3. Re-positioning the antenna
Fitting the antenna in the best possible location has a significant effect on the signal levels received by your M2M equipment. This may mean moving the antenna further away from the M2M device (router, GSM modem) and/or positioning it higher up by mounting to a wall or pole. Directional antennas (e.g. Yagi) can also help improve the signal if you know the direction of the receiving station. For most applications, this information will not be easily available and due to reflections from walls, buildings and other surfaces, more often the signal is not received from the expected direction making omni-directional antennas more appropriate.

4. Go “High-Gain”
Some antennas are far better than others at specific frequencies, ensuring the right antenna is selected for an application is key. Antennas with higher gain will perform far better than low cost alternatives.

5. Reducing signal losses
Running a length of RF cable between antenna and router/GSM modem introduces further degradation of signal strength. Replacing a standard RG58 style RF cable with a low loss equivalent can solve signal strength issues and potentially mean that the antenna does not have to be repositioned. Additionally, low loss cables enable longer RF cable lengths to be used if required.

Whilst RF signal strength can appear somewhat of a ‘black art’, there exists a number of tried and tested approaches to help improve signal strength for antennas. For most applications, the starting point will be to determine the best cellular network and be able to accurately measure the 2G / 3G signal strength using a signal tester such as the SNYPER 3G.


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