CSL Router Pro – Industrial Grade
Managed multipath connectivity and failover for mission-critical applications deployed in industrial or remote sites, including National Infrastructure projects.
Our robust routers are specifically engineered to function in challenging environments and seamlessly integrate with a range of wired and wireless connectivity options. Each variant ensures multiple secure active/standby network connections, enhancing resilience and bolstering the reliability of the associated applications.
Through the use of CSL’s dedicated IoT core, we deliver secure private fixed connectivity (xDSL/FTTx) and private Access Point Names (APNs). This ensures that all data traffic remains protected and isolated from the public internet, enhancing the overall security of the network infrastructure.


Quick Guide
Introduction
This section provides basic information to enable you to install and commission CSL Router quickly. CSL Router is preconfigured with the SIMs already fitted in the SIM slots.

Step 1. Installation Site
- Find a suitable location with good 4G coverage
- Keep away from sources of interference i.e. monitors, fridges, power supplies, etc.
- LEDs will show connection status
Step 2. Aerial xDSL and Power
- Fit the included Aerial to the front connection port marked CELL PRIM & CELL AUX
- Plug the broadband cable into the DSL port on the front of the router and plug the other end into the BT socket.
- Power up the Router using the supplied PSU
Step 3. xDSL Status
- If the xDSL service provisioning has been confirmed the SYN LED should be blinking and then become solid
- Once the line synch is complete the LED DAT should flash indicating data transfer.
Step 4. Signal Strength
- For best results ensure that both green signal strength LEDs are ON to indicate the Router has established good signal strength
- OFF/ON LED status indicates a medium signal strength which is also acceptable
- ON/OFF LED status indicates a poor signal strength and the signal will need to be improved.
Step 5. Connect Devices
- IP devices can now be connected using the supplied ethernet cable. For your specific LAN IP addresses please see the sticker on the back page.
THE EXTERNAL WALL MOUNTED CSL HIGH GAIN AERIALS ARE AVAILABLE AS AN OPTIONAL ACCESSORY. PLEASE CONTACT CSL TECHNICAL SUPPORT FOR MORE INFORMATION
CSL Technical Support can be contacted via email iotplatinum@csl-group.com or by phone +44 (0) 1895 546 214
Troubleshooting
ISSUE = THE SITE IS OFF-LINE AND THE ROUTER CANNOT BE CONTACTED ON EITHER PATH
Q: Is the router powered?
A: The Power Adaptor LED and router’s POWER LED should both be on.
- If the Power LED is off when the Power Adaptor LED is off – the power source may be faulty or if ok replace the power adaptor or mains cable.
- If the Power LED is off when the Power Adaptor LED is on – replace the router.
Q: Are all xDSL connections correct and are they working reliably?
A: If SYN & DAT indicators are off please check connectors are well seated. If connections seem OK swap the filter, cables, or adaptors between the line socket and router. Customer provided telephone line extension leads or sockets may need to be checked and replaced.
Q: Is the xDSL path now OK?
A: The SYN indicator should be on and stable and the DAT indicator should be on but flashing to show data is passing through the router.
- If the SYN is on & DAT indicators is on but not flashing then contact CSL Technical Support to confirm the router’s xDSL path has restored.
- If the SYN indicator is off – the router may have recently been powered up or rebooted, wait a minute and recheck.
- If the SYN indicator persistently drops out or begins flashing then the router may be unable to sync or randomly re-syncing. If all checks in have been made to remove any connection problems then retest with a spare router, otherwise, contact the CSL Technical Support who will arrange for an xDSL test.
Q: Is the router configured correctly?
A: The CONFIG LED should be on or off but not flashing. If the CONFIG LED is flashing then contact the CSL Technical Support who will arrange the download of the site-specific configuration.
Q: Is the mobile radio path now OK?
A: Ideally, one or more signal strength LEDs should be permanently on. If all Signal Strength LEDs are off it indicates no signal is available. If the signal strength is usually OK this could indicate there may be a local transmitter fault. Contact the CSL Technical Support if this is suspected.
ISSUE = THE SITE IS OFF-LINE BUT THE ROUTER CAN BE CONTACTED BY CSL
Q: Is the ethernet connection OK?
A: The Ethernet Port’s Green LED should be on. If it is off, please ensure the connected equipment is powered, otherwise, disconnect and reconnect the Ethernet cable into the router and equipment ports. If the issue persists then replace the Ethernet cable. If the problem persists even further, contact the CSL Technical Support who will arrange to check and confirm that the router port is enabled and that the router is configured correctly.
ISSUE = THE SITE IS ON-LINE BUT THE XDSL PATH IS UNAVAILABLE
Q: Are all xDSL connections correct and are they working reliably?
A: If the SYN & DAT indicators off – Check connectors are well seated. If connections seem OK swap the filter, cables or adaptors between the line socket and router. The issue coud also be the customer’s telephone line extension leads or sockets are faulty – check these and replace if necassary.
- If the SYN is on & DAT indicators is on but not flashing then contact CSL Technical Support to confirm the router’s xDSL path has restored.
- If the SYN indicator is off – the router may have recently been powered up or rebooted, wait a minute and recheck.
- If the SYN indicator persistantly drops out or begins flashing then the router may be unable to sync or randomly re-syncing. If all checks in have been made to remove any connection problems then retest with a spare router, otherwise, contact the CSL support who will arrange for an xDSL test.
ISSUE = THE SITE IS ON-LINE BUT THE XDSL PATH IS UNAVAILABLE
Q: Are all xDSL connections correct and are they working reliably?
A: If the SYN & DAT indicators are off – Check connectors are well seated. If connections seem OK swap the filter, cables, or adaptors between the line socket and router. The issue could also be the customer’s telephone line extension leads or the socket is faulty – check these and replace them if necessary.
- If the SYN is on and the DAT indicators are on but not flashing then contact CSL Technical Support to confirm the router’s xDSL path has been restored.
- If the SYN indicator is off – the router may have recently been powered up or rebooted, wait a minute and recheck.
- If the SYN indicator persistently drops out or begins flashing then the router may be unable to sync or randomly re-syncing. If all checks in have been made to remove any connection problems then retest with a spare router, otherwise, contact the CSL support who will arrange for an xDSL test.
ISSUE = THE SITE IS ON-LINE BUT THE MOBILE RADIO PATH IS UNAVAILABLE
Q: Is the signal OK?
A: Check the signal strength LEDs. Ideally, one or more mobile signal strength LEDs should be permanently on
- If the mobile signal strength LEDs are off – it indicates no signal is being received. Check the antenna connection & cable. If the signal is usually OK there may be a local transmitter fault. Contact the CSL support if this is suspected
- If a single mobile signal strength LED is off – it indicates a weak signal. The standard antenna may be inadequate. Contact the CSL Technical Support who will arrange a check to confirm whether the signal is suitable to ensure reliable operation. An external antenna or antenna relocation may be required
- If two or more Mobile signal strength LEDs are permanently on – contact the CSL Technical Support to confirm the router’s radio path has restored
A: The SYN indicator should be on and stable & the DAT indicator should flashing if data is passing through the router
Q: Are the more than two green signal strength are on?
A: At least one green LEDs must be on for the radio to operate properly. If no LEDs are ON – it indicates that no signal is available in the area or possible router fault. Contact the CSL Technical Support if this is suspected
Figure 2 – LED Indications
LED BEHAVIOUR | STATUS | |
Power / CFG | Green – double flash | Router is booting after power up |
Green – flashing quickly | Router is in factory config mode | |
Green – permanently on | Router has completed boot process and is ready | |
SIM Status | Off | Router is not connected to a Mobile Data Network |
Green flashing | Router is attempting to connect to a Mobile Data Network | |
Green on | Router has successfully connected to a Mobile Data Network | |
Signal Strength | Green – off/off | No cellular radio signal detected |
Green – on/off | Low cellular radio signal detected | |
Green – off/on | Medium cellular radio signal detected | |
Green – on/on | Good cellular radio signal detected |
SUPPORT
For more information on CSL Router or other IoT Services please contact CSL Technical Support:
UK Tel: +44 (0) 1895 546 214
Email: iotplatinum@csl-group.com
Please ensure you have the following information when contacting CSL support team:
- How the Incident is Impacting Thames Water business
- IP Address/Router serial/CSL or Thames Water site reference (provided at the point of order) Symptoms
- The time at which the incident became apparent
- Site location/access/contact details of where the incident is occurring.
- Details of checks that have already been made (see Troubleshooting section)
- Thames Water incident reference number (if applicable)
Technical Specs
Technical Specifications
WAN1 (DSL) | VDSL2 / ADSL2+ Annex A, Annex B, RJ11 |
LAN Ports | Ethernet 4 x 10/100/1000 Mbit/s, Ethernet TX, RJ45 |
WAN Interface | Dual-SIM Failover 4G LTE Category 4 Modem |
VPN | IKE Version 2, X.509 certificates, ECC, SHA2_512 support, AES_CBC (256), PFS, SCEP, DH_8192 |
Dimensions (W x H x D) | 50 x 170 x 100 mm |
Weight | 760g |
Serial | Up to 2 serial ports, each software configurable for RS232/RS485 |
Digital Inputs | Up to 6 digital inputs for detecting remote contact open/close |
Digital Outputs | Up to 2 relay contact outputs. 220 VDC, 2 Amp rating |
FAQs
What are the main differences between CSL Router - Industrial Grade and the CSL Router Pro?
CSL Router Pro – Industrial Grade is deployed using hardware designed for more challenging environments.
- Industrial protocol gateway and conversion
- Full Metal casing
- IP30-31
What connection types are available on the CSL Router Pro?
The fixed connectivity aspect will vary on a site-by-site basis based on what is available. CSL will work with you to ensure the best possible solution is provided at each site. In cases where xDSL/FTTx is unavailable or impractical, CSL can provide alternative options such as dual SIM and satellite connectivity.
When would I need a CSL Router Pro - Industrial Grade?
When deploying connectivity in environments that would be detrimental to standard routers or gateways.
How would I purchase a CSL Router Pro - Industrial Grade?
Please get in touch with us or speak to your account manager to learn more