Read More
Seen this product cheaper elsewhere?
Call 0345 2300 599
The Sierra Radio Systems SIR-462 is a wireless DCN data radio for Sierra Station Controller systems.
It allows Sierra DCN, or Device Control Network, RS-485 data to be sent wirelessly between compatible Station Controller modules and installations. This can be useful where running a physical DCN cable is difficult, such as between buildings, across a site, between equipment cabinets, or to a remote antenna switching location.
The SIR-462 accepts DCN RS-485 data through the 485_A and 485_B terminals, then transmits that data wirelessly to another SIR-462 data radio configured in the same way. Multiple data radios can be used on the same channel, creating a shared wireless “party line” where all radios can communicate. Individual addressing is handled within the DCN data packet itself.
The radio uses LoRa modulation for improved range and reliability and can transmit at power levels from milliwatts up to 1W.
Key Features
- Wireless DCN data radio for Sierra Station Controller systems
- Sends DCN RS-485 data wirelessly between compatible modules or locations
- Uses LoRa modulation for improved range and reliability
- Accepts DCN data via 485_A and 485_B terminal connections
- Can be configured with other matching SIR-462 data radios
- Multiple radios can operate on the same channel as a shared wireless data network
- Individual addressing handled within the DCN data packet
- Adjustable transmit power from milliwatts up to 1W
- Programmable within the 860-930MHz frequency range
- Supplied/programmed information states 915.125MHz for USA licence-free operation
- 12V DC power input via 2.1mm barrel jack or green terminal block
- Useful where a wired DCN connection is not practical
- Suitable for remote stations, antenna sites, repeater sites, and equipment cabinets
Typical Uses
- Creating a wireless Sierra DCN link
- Linking Station Controller modules where cable runs are difficult
- Connecting equipment between buildings
- Remote antenna switching locations
- Repeater site monitoring and control
- Remote HF station control systems
- Shack-to-outbuilding control links
- Temporary or portable Station Controller installations
- Extending control to remote equipment cabinets
Station Controller System Role
The SIR-462 is used to extend the Sierra Station Controller DCN wirelessly.
A wired DCN connection normally uses RJ45-style cabling between Sierra modules. The SIR-462 provides an alternative wireless path by taking the DCN RS-485 A and B data lines from a compatible module and transmitting them to another data radio.
To add a data radio to a Station Controller system, power the SIR-462 from a suitable 12V DC source, then connect the A and B terminals from a Station Controller module to the matching 485_A and 485_B terminals on the data radio.
Basic Connection Guide
| Connection | Details |
|---|---|
| Power input option 1 | 12V DC via 2.1mm barrel jack |
| Power input option 2 | 12V DC via GND and VCC terminals on the green terminal block |
| DCN data A | Connect module A terminal to 485_A |
| DCN data B | Connect module B terminal to 485_B |
| Wireless link | Use with another SIR-462 configured the same way |
Wireless Operation
Multiple SIR-462 data radios can be used on the same channel. When configured in this way, the radios operate as a shared wireless DCN data network, with all connected data radios able to communicate with each other.
The radio can be reprogrammed within the 860-930MHz frequency range and at transmit power levels from milliwatts up to 1W.
Specifications
| Specification | Details |
| Brand | Sierra Radio Systems |
| Model | SIR-462 |
| Product type | DCN LoRa data radio |
| Data interface | DCN RS-485 |
| Data terminals | 485_A and 485_B |
| Modulation | LoRa |
| Transmit power | Milliwatts to 1W, programmable |
| Programmable frequency range | 860-930MHz |
| Supplied/programmed frequency | 915.125MHz, according to Sierra supplied information |
| Power input | 12V DC |
| Power connector options | 2.1mm barrel jack or green terminal block |
| Typical system | Sierra Station Controller |
| Wireless network style | Shared channel / party line operation |
Important Note
This listing is for the SIR-462 DCN LoRa Data Radio only.
A wireless DCN link normally requires at least two compatible data radios, with each radio configured correctly for the same channel and installation.
SIR-310 host adapter, installation kit, DCN hub, Station Controller modules, power supply, antennas, cables, and other accessories are not included unless stated otherwise.
A suitable 12V DC supply is required.
The supplied/programmed frequency information refers to 915.125MHz for USA licence-free operation. Customers outside the USA must ensure the frequency, power level, programming, antenna, and use are legal for their location before operation. This product does not automatically guarantee licence-free operation in all countries.
The Sierra DCN uses RS-485 data. It is not standard Ethernet and must not be connected directly to normal Ethernet network equipment.
Shipping & Delivery
We offer UK and international delivery services, including next working day and selected weekend options for eligible orders. Available services, prices and estimated delivery times are displayed at checkout.
Delivery Information
Delivery options depend on the parcel's size, weight, contents and destination. Express and weekend services are subject to availability and cut-off times. Oversized or exceptionally heavy items may require a specialist delivery quotation.
Returns & Cancellations
To arrange a return, please contact ML&S or complete our returns form. You may also exercise your statutory right to cancel by email or another clear statement, without completing the form.
Changed Your Mind?
Under the Consumer Contracts Regulations 2013, most purchases made online or by telephone can be cancelled within 14 days of receipt.
You must notify us of your cancellation within this period and return the goods within a further 14 days.
Please handle all goods with care. Returned items must be in a resaleable condition, complete with their original packaging, and all supplied accessories.
You may inspect goods as you would in a shop. Handling beyond what is necessary to inspect them may result in a lawful deduction for diminished value.
Exceptions
Modified Equipment & Reversal Charges
Additional return conditions may apply to equipment modified at the customer's request, including wideband transmit or receive modifications.
ML&S may charge a reasonable fee to reverse physical modifications and restore the equipment to its original factory specification. Any such charge will be agreed in advance and deducted from your refund.
Custom-Made Cable Assemblies
Coaxial cable assemblies manufactured to a customer's specifications are excluded from the 14-day return policy and are non-refundable unless faulty.
Software & Labour Charges
Labour and modification charges requested by the customer are non-refundable once the work has been completed.
Computer software may only be returned under the 14-day return policy if it remains sealed and unopened.
Return Postage Charges
Customers are responsible for the direct cost of returning unwanted or incorrectly ordered goods, where permitted by law. You may arrange your own suitable return postage or use one of our optional prepaid services.
Standard Parcels
Royal Mail Return Label
£5.95
Per parcel
For eligible standard-sized parcels, subject to Royal Mail restrictions. Free collection included.
Larger Parcels
DPD Return Label
£7.95
Per parcel
For larger or heavier parcels and any shipments with batteries.
Collection Service
DPD Collection
£25.00
Per parcel
Available upon request for eligible addresses, subject to availability.
Prepaid return charges will be confirmed before booking and deducted from your refund.
These prices apply to eligible UK mainland returns. Oversized items, specialist products and returns from other destinations may require a separate quotation. Estimated return costs will be disclosed before purchase.
Faulty or Incorrectly Supplied Goods
Return postage charges do not apply to faulty, damaged or incorrectly supplied goods returned under statutory rights. ML&S will arrange a free return in these circumstances.
Refunds
Refunds are processed without undue delay following receipt and inspection of returned goods, and no later than 14 days after we receive goods returned under statutory cancellation rights.
Refunds will be issued to the original payment method. Any prepaid return postage charges or lawful deductions for diminished value will be itemised.
Warranty Terms & Conditions
New Equipment Warranty
Minimum 2-Year Warranty
All new products supplied by ML&S carry a minimum two-year warranty against manufacturing defects, excluding batteries, which are covered by separate warranty terms.
Some manufacturers provide extended warranties, such as the three-year warranty available on eligible Yaesu equipment. Any additional coverage is subject to the manufacturer's terms and conditions.
Our workshop may assess and repair faulty equipment on site or refer it to the manufacturer or an authorised service centre where necessary.
Warranty exclusions may include batteries, normal wear and tear, accidental damage, misuse and unauthorised modifications, as specified in the applicable warranty terms.
All warranties are provided in addition to your statutory consumer rights against ML&S, which are not limited by the warranty period.
International Returns & Warranty
Unless otherwise stated, ML&S warranty servicing is carried out in the UK. International customers must contact us before returning goods to confirm shipping and customs requirements.
International customers are responsible for return postage unless the goods are faulty and ML&S has been notified within a reasonable time.
ML&S accepts no responsibility for additional charges resulting from incorrectly completed customs documentation. Any additional duties charged to ML&S as a result will be billed to the customer before return of the goods.
Need Help With a Return?
Our team can assist with returns, postage arrangements, modifications and warranty claims.
Nothing in these terms excludes or limits your statutory consumer rights.