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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:
We have several shipping options for our products, including next-day and Saturday/Sunday delivery for certain items. Please see these options at checkout.
Returns:
If you have any equipment that needs to be returned to Martin Lynch & Sons, please fill out the form below:
Upon receipt of goods you have 14 days to return goods however the goods must be returned in original packaging and care must have been taken with the goods you wish to return. Under distance selling regulations you are not entitled to any refund on carriage charges or modification charges made at your request. Large items cannot be returned if they have been assembled, unless faulty.
Warranty Terms and Conditions
Outside of the 14 faulty return period, returned items cannot be accepted, unless covered by manufacturer's warranty. We will repair as much as possible on site however in exceptional circumstances products may have to be returned to the manufacturer of distributor.
For repairs/replacements under manufacturer’s warranty for any item please download a ML&S return form from the link above and return to ML&S with the faulty product.
International Warranty information
Warranty service for items we sell is available in the U.K. only, unless otherwise noted. It is your responsibility to pay freight for returned items to the U.K. and back to you for desired warranty coverage. All of our NEW products come with a minimum 12 month warranty, (Yaesu & Icom 24 months), with up to 90 days on second-hand equipment. Items returned for service must state "returned goods for repair" on the return air waybill or U.K. import customs duties apply and will be added to your invoice. For more info about returning items please contact our customer help desk, [email protected]