EC BASE EXTENDER | ETHERNET OVER COAX ADAPTER | NV-ECLK-BSE
Extend the Reach of a Standard PoE Switch with the EC Base Ethernet over Coax Extender
All NVT Phybridge IP products are manufactured in North America and are TAA and NDAA compliant
For more information on Coax to IP products visit: www.nvtphybridge.com/coax-to-ip/

The NVT Phybridge EC-Base Extender Solution is designed to supercharge the downlink ports of a standard Ethernet switch, delivering 10/100Mbps symmetrical (full duplex) and PoE over Coax infrastructure with distances up to 6,000ft (1,830m). That’s 18X the reach of standard Ethernet switches, thus removing the costs and disruptions associated with multiple IDF closet requirements.
With the EC-Base Extender Solution, IP IoT devices can be connected to the existing Coax cabling infrastructure, delivering optimal performance while saving cost, time, and environmental e-waste. Furthermore, the cost savings realized by using the EC Extender Solution can enable system designers to transfer budget and resources towards higher-quality applications and IEEE-compliant IoT devices, including IP-enabled phones, cameras, access control, speakers, and even facilities lighting.
Extend the reach of standard PoE switches with the EC Extender Solution
EC-Base Technical Specifications
Model | EC-Base |
Part Number | NV-ECLK-BSE |
Dimensions | • 10.09cm x 5.03cm x 2.57cm (LxWxH); • 3.97” x 1.98” x 1.01” (LxWxH) |
Weight | 108g (3.81oz.) |
Interface: Network Infrastructure side (CLEER) | (1 BNC port: Coax cable (RG59, RG6, RG11) |
Interface: IEEE Side (IP Device) | (For General/PoE Switch) 1 RJ45 port: supports negotiation with IEEE 802.3 af/at switches |
Power Supply | PoE from standard PoE switch, or external power supply; maximum 50W if locally powered |
Power Consumption | 1W |
Operating Temperature | -58°F to +158°F (-50°C to +70°C) Tests conducted against international safety standard at maximum ambient temperatures of 60ºC at 30W and 55ºC at 50W |
Humidity | 10% to 95% (non-condensing) at 35° C |
Mean Time Before Failure (MTBF) | 20+ years |
Rack Mount | Model NV-RMEXT |
EC-Base Compliance and Agency Approval
EMC | Emissions: FCC Part 15, ICES-003, EN 55032:2012, EN 50121-4:2015 Class B Immunity: EN 55024:2010, EN 50121-4:2015 |
Safety | UL 60950-1 2nd Ed 2014-10-14, CAN/CSA C22.2 No. 60950-1-07 2nd Ed 2014-10 IEC 62368-1:2014, EN 62368-1:2014, AS/NZS 62368.1:2018 |
Environment | RoHS Directives 2011/65 and 2015/863 |
Power & Distance Table
EC Adapter Options
There are three media converter options available to pair with the CLEER family of switches to extend PoE over Coax. The EC-Link and EC Link+ are single endpoint solutions and the EC4 enables 4 IP endpoints from a single long run Coax cable.
![]() EC-Link |
![]() EC-Link+ |
![]() EC4 |
|
---|---|---|---|
Power |
|
|
|
Casing |
Plastic |
Metal |
Plastic |
EN 50121-4 Standard |
Yes – approved to operate in a railway/subway environment |
EC-Link Technical Specifications
Model Number | EC-Link |
Part Number | NV-ECLK |
Dimensions | 8.8cm x 3.2cm x 2.1cm (LxWxH);
3.46″ x 1.23″ x 0.83″ (LxWxH) |
Weight | 42g (1.48oz.) |
Interface: Network Infrastructure side (CLEER) | 1 BNC port: Coax cable (RG59, RG6, RG11) |
Line Speed | 10/100Mbps full duplex |
Interface: IEEE Side (IP Device) | 1 RJ45 port; device must be IEEE 802.3 af/at compliant |
Power Supply | PoE from the CLEER / EC switch or from EC-Base, maximum 30W (over 2-pairs) |
DC IN | Optional (sold separately)
48V – 56VDC via an external AC/DC Power Adapter with phoenix connector (IEC Class II isolated only) NOTE 1: Local power supply used must have its output isolated from Earth potential. NOTE 2: If voltage of local power supply is lower than the power voltage provided from the PoE switch, then power on the PoE switch should be turned off. |
Power Consumption | 0.9W |
Operating Temperature | -58°F to +158°F (-50°C to +70°C)
Tests conducted against international safety standard at maximum ambient temperatures of 50ºC |
Mean Time Before Failure (MTBF) | 20+ years |
Humidity | 10% to 95% (non-condensing) at 35° C |
EC-Link+ Technical Specifications
Model Number | EC-Link+ |
Part Number | NV-ECLK-PLS |
Dimensions | 10.09cm x 5.03cm x 2.57cm (LxWxH); 3.97” x 1.98” x 1.01” (LxWxH)” |
Weight | 108g (3.81oz.) |
Interface: Network Infrastructure side (CLEER) | 1 BNC port: Coax cable (RG59, RG6, RG11) |
Line Speed | 10/100Mbps full duplex |
Interface: IEEE Side (IP Device) | 1 RJ45 port; adapter is IEEE 802.3af/at compliant and will negotiate power requirements with IP end device. |
Power Supply | Maximum 50W from CLEER / EC switch (If locally powered and 30W if power provided from switch) delivered on 4 pairs. |
DC IN (Barrel Connector) | Optional (sold separately) 48V – 56VDC via an external AC/DC Power Adapter (IEC Class II isolated only) with barrel connector NOTE 1: Local power supply used must have its output isolated from Earth potential. NOTE 2: If voltage of local power supply is lower than the power voltage provided from the PoE switch, then power on the PoE switch should be turned off.” |
Power Consumption | 1.1W |
Operating Temperature | -58°F to +158°F (-50°C to +70°C) Tests conducted against international safety standard at maximum ambient temperatures of 60ºC at 30W and 55ºC at 50W |
Mean Time Before Failure (MTBF) | 20+ years |
Humidity | 10% to 95% (non-condensing) at 35° C |
EC4 Technical Specifications
Model Number | EC4 |
Part Number | NV-EC-04 |
Dimensions | 11cm x 7cm x 2.5cm (LxWxH);
4.3” x 2.75” x 0.98” (LxWxH) |
Weight | 96g (3.38oz.) |
Interface: Network Infrastructure side (CLEER) | 1 BNC port: Coax cable (RG59, RG6, RG11) |
Line Speed | 100Mbps full duplex |
Interface: IEEE Side (IP Device) | 4 RJ45 ports: devices must be IEEE 802.3 af/at compliant |
Power Supply | PoE from the CLEER / EC switch or external power supply; maximum 50W (over 4-pairs) each port |
DC IN (Barrel Connector) | Optional (sold separately) 48V – 56VDC via an external AC/DC Power Adapter (IEC Class II isolated only) NOTE 1: Local power supply used must have its output isolated from Earth potential. NOTE 2: If voltage of local power supply is lower than the power voltage provided from the PoE switch, then power on the PoE switch should be turned off. |
Power Consumption | 1W |
Operating Temperature | -58°F to +158°F (-50°C to +70°C) Tests conducted against international safety standard at maximum ambient temperatures of 50ºC |
Mean Time Before Failure (MTBF) | 20+ years |
Humidity | 10% to 95% (non-condensing) at 35° C |
EC Adapters Compliance and Agency Approval
EMC | Emissions: FCC Part 15, ICES-003, EN 55032:2012, EN 50121-4:2015 Class A (EC4) Class B (EC-Link and EC-Link+) Immunity: EN 55024:2010, EN 50121-4:2015 |
Safety | UL 60950-1 2nd Ed 2014-10-14, CAN/CSA C22.2 No. 60950-1-07 2nd Ed 2014-10 IEC 62368-1:2014, EN 62368-1:2014, AS/NZS 62368.1:2018 |
Environment | RoHS Directives 2011/65 and 2015/863 |
NV-RMEXT | Rack mount kit for up to 8 CHARIoT Extenders (NV-ECLK-BSE and NV-FLXLK-BSE). Power supplies are sold separately; recommended part number: NV-PS55-190W. |
NV-PS55-60W | The 55VDC 60W optional power supply to locally power the FLEX-Link & EC-Link+ adapter. |
NV-PS55-110W | The 55VDC 110W optional power supply to locally power the FLEX4 & EC4 adapter. |
NV-PS55-48W-P | The 55VDC 48 watt optional power supply to locally power the EC-Link adapter. |
4-Port EC Extender Kit (NV-EC-04-XKIT)
EC-EXTENDER KITS
Each EC Extender Kit is conveniently packaged and includes an EC-Link+ or EC4 Adapter, an EC-Base Extender, and an external power supply.
1-Port EC Extender Kit (NV-ECLK-PLS-XKIT)
- Extend reach of standard PoE switch
- Single port coax extender solution enabling 1 endpoint from a single long run Coax cable
- 10/100Mbps symmetrical (full duplex) and PoE+ (up to 50W) with up to 6,000ft (1,830m) reach
- Up to 50W of power available for the endpoint
- Adapters can be locally powered
- Includes: EC-Base Extender, EC-Link+ Adapter, and 60W, 55V external power supply
- EN 50121-4 Standard for Railway/Subway environments
4-Port EC Extender Kit (NV-EC-04-XKIT)
- Extend reach of standard PoE switch
- Single port coax extender solution enabling 4 IP endpoints from a single long run Coax cable
- 10/100Mbps symmetrical (full duplex) and PoE+ (up to 30W) with up to 3,000ft (915m) reach
- Delivers up to 30W of power per downlink port
- Adapters can be locally powered
- Includes: EC-Base Extender, EC4, Adapter, and 110W, 55V external power supply
- EN 50121-4 Standard for Railway/ Subway environments
EC-Base Documentation
EC-Base Extender Solution Datasheet
CLEER Family Certificate of Origin
EC Adapter Documentation
EC-Link and EC4 Compliance Document
EC-Link, EC-Link+ , EC-Base Compliance Document
CLEER Family Certificate of Origin
EC Extender Kit Documentation
Introducing the EC Extender Kits
Introducing the CHARIoT Series
Introducing: NVT CLEER Simple IP modernization
The award winning CLEER switch is the worlds first 24 port managed switch that delivers 100 Mbps Ethernet (full duplex) and PoE+ over Coax with 2,000 ft (609 m) reach.
No need for a costly and disruptive rip-and-replace of your infrastructure when you can transform your existing coax into a robust IP platform with the CLEER 24 switch or the EC 10 switch.