Radionix SDI2 Wireless Interface and Receiver Kit ENKIT-SDI2 for Inovonics EchoStream
Wireless reach, wired into SDI2.
This kit pairs the B820 interface with the EN4200 receiver so Inovonics EchoStream wireless devices connect to Bosch SDI2 bus panels in commercial installs.

Your panel can only hear what it's wired to.
Wireless points and keyfobs need a receiver that talks to the panel over its data bus. The B820 and EN4200 handle that link for SDI2 bus panels.
Built for SDI2 wireless expansion
One kit joins an Inovonics EchoStream receiver to a compatible SDI2 bus panel.
EchoStream connectivity
The B820 provides connectivity to the Inovonics EchoStream EN4200 Serial Receiver.

Wireless devices (combined types)
Any mix of point and keyfob ID's, plus up to 8 repeater ID's.
Flexible receiver placement
The receiver may be installed up to 1000' (305 m) from the control panel for optimal wireless reception.
Room for 350 devices
Stores any combination of point and keyfob ID's, for a total of 350 wireless devices (combined types).
Repeater support
Capacity for up to 8 repeater ID's alongside your point and keyfob devices.
Everything you need to know.
| Brand | Radionix |
| Model | SDI2 |
| Product Type | Accessory Kit |
| Compatibility | Bosch SDI2 bus panels |
| Installation Type | Commercial |
| Package Contents | B820, EN4200 |
| NDAA Compliant | Yes |
| Environmental Certification | RoHS |
| Country of Origin | CN |
| Product Model | ENKIT-SDI2MP |
Radionix SDI2 Wireless Interface and Receiver Kit ENKIT-SDI2 for Inovonics EchoStream
The Radionix ENKIT-SDI2 is a wireless receiver kit (SDI2 Inovonics Wireless Interface and Receiver Kit). It is part of a professionally installed intrusion alarm system and is aimed at security dealers and installers.
Expansion and interface modules add inputs, outputs or wireless capability to a compatible control panel over its data bus.
Key Features
- The B820 provides connectivity to Inovonics EchoStream EN4200 Serial Receiver.
- May be installed up to 1000' (305 m) from the control panel, allowing for optimal wireless reception.
- Capacity to store any combination of point and keyfob ID’s for a total of 350Wireless devices (combined types) and up to 8 repeater ID’s.
Specifications
- Brand: Radionix
- Model: ENKIT-SDI2
- NDAA Compliant: yes
- Product Type: Accessory Kit
- Installation Type: Commercial
- Compatibility: SDI2 bus panels
- Environmental Certification: ROHS
- Package Contents: B820, EN4200
- Shipping weight: 0.8 lb
Typical Uses
- Expanding the capability of a compatible control panel
- Commercial and residential alarm installations
- System upgrades and service work
Before ordering, confirm that this part matches your control panel, detector or system model and the wiring or frequency in use. Check the specifications above and the installation guide for your system.
Need help with compatibility?
Looking for a manufacturer part number, compatible replacement, or quantity order? Contact Raztechs for sourcing and quote support.

Radionix SDI2, ready to order.
- B820
- EN4200
Related equipment
You may also like
Radionix RJ31X Telephone Jack D166 for Alarm Line Seizure
Model: RJ31X
Radionix 6-Location Mounting Plate D9002-5, 3-Hole, 5-Piece
Model: 6-Location
Radionix Earth Ground Clamp D167 for 0.5 to 1 in Pipe
Model: D167
Radionix Dual Modular Telephone Cord D161, 7 ft (2.1 m)
Model: D161
Radionix 18VAC 50VA Plug-In Transformer TR1850
Model: 18VAC
Radionix Dual Battery Harness D122 for Alarm Control Panels
Model: D122
Radionix 18VAC 22VA Plug-In Transformer CX4010
Model: 18VAC
Radionix Dual Battery Harness D122L with Long Leads
Model: D122L
