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NH-310C - EoC Endpoint

 Ordering Information mOQ: 500 units
  EoC Endpoint



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  • Features
  • Specifications
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  • FAQ


NH-310C is an Ethernet over Coax Endpoint that is designed for home and office applications that leverage the two most popular network connections for home use: Ethernet and coaxial cable connection. It is a plug & play cost effective home networking solution that eliminates the pain in modification and high infrastructure cost, it allows Ethernet connectivity in existing facilities or homes without pulling extra cables. With point-to-point and point-to-multipoint applications, it provides Ethernet connectivity over existing CATV grade Coaxial cables in locations such as apartments, hotels and buildings that require a high bandwidth network.


It is a norm that homes and offices are equipped with wired network that simply transfer small files and shared applications, but the need for triple play services like transferring large multimedia files such as music, video, photo and deliver high speed VOIP data are ever increasing.

This is why NH-310C is designed to be a cost effective home networking solution. With the data transmission up to 200Mbps and distance can withstand 60dB of the attenuation; it meets the growing demand for high speed multimedia services. With plug & play, this simply eliminates the pain in modification and high infrastructure cost. Most importantly, to be able to support point-to-point and point-to-multipoint applications allow networking for any locations such as home, office, sports center, buildings, apartments, hotels, resorts and other places that need a high bandwidth network.


Flexible Configuration

NH-310C can connect to another NH-310C via a coaxial cable, administrators can install these devices easily for Home Networking applications. The NH-310C supports up to 10(maximum) NH-310C Endpoints.




• Compliant with HomePNA3.1/HomePNA3.0 over Coaxial cable(HCNA) specifications (ITU-T G.9954)
• Compliant with IEEE802.3 10Base-T and IEEE802.3u 100Base-Tx standards
• Compliant with IEEE802.3x flow control standard
• Provides 2 x 10/100M auto-negotiation RJ-45 Ethernet ports with auto MDI/MDIX
• Provides 2 x F-type female coax connectors for HCNA and TV
• Supports transmission speed up to 200Mbps over coaxial cable and link establish under -160dBm/Hz noise floor
• Supports point to point and point to multipoint application
• Supports IEEE802.1p priority mapping
• Supports IEEE802.1p/TOS priority queue
• Supports IEEE802.1Q Tag VLAN pass through
• Supports auto-speed from 32Mbps up to 200Mbps
• Supports up to 10 endpoints or slaves
• Guaranteed QoS based on HomePNA3.1 parameterized QoS
• EMI certified by CE and FCC
* Specifications are subject to change without prior notice.




 Standard Conformance
 IEEE802.3 standard
 IEEE802.3u standard
 ITU-T G.9954 standard

  Regulatory Compliance:


 RoHS compliance

 Hardware Specifications
 Physical Interface:
 2 x RJ-45 10/100Mbps Ethernet port
 1 x F-type female coax connector for HCNA (75 ohm)
 1 x F-type female coax connector for STB/TV (75 ohm)
 1 x 5-12VDC 1A Power Jack
 LED indication:
 1 x Power LED
 1 x HCNA Link/Activity LED
 2 x HCNA Line Speed (Quality) LED
 2 x Ethernet Link/Activity LED
 Max. Bandwidth:
 Up to 200Mbps
 Max. Noise Floor:
 -160dBm/Hz(Up to 1100m over RG-59 75ohm coaxial cable)
 SAT HCNA Transmission  Spectrum:
 12MHz ~ 44MHz
 Operating Temperature:
 0°C~ 50°C (32°F ~ 122°F)
 Storage Temperature:
 -20°C ~ 70°C (-4°F ~ 158°F)
 10 to 90% (non-condensing)
 130mm x 94.5mm x 27mm(5.12" x 3.72" x 1.06")


* Specifications are subject to change without prior notice.



Home Networking Application

The NH-310C has been designed to operate on the coaxial cable installed in homes throughout the world. They utilized the same cable and connectors commonly used for television.

The NH-310C has 2 x Ethernet ports. One port is used to connect to the ISP to provide Internet access and the other port is used to connect devices such as HUB, concentrator, bridge or router. The device attached to these ports must support auto-negotiation.

The 2x Coaxial connector are used to connect to TV or coaxial wall socket to another modem that connect its RJ-45 to the LAN card of another set of PC, notebook, or other internet access device or coaxial connector to TV or set top box.
The NH-310S’ coaxial connector must support the transmission of data up to 200Mbps across the existing coaxial cable and link establish under -160dBm/Hz noise floor. But make sure that the connector is inserted properly and lock.






Release Date
Feb, 2013
July, 2014
  User's manual
  Performance Table
  Engineering tools




1. POWER indicator does not light up (green) after power on.


Check the power plug by plugging in another that is functioning properly. Check the power cord with another device. If these measures fail to resolve the problem, have the unit power supply replaced by a qualified distributor.


2. Link indicator does not light up (green) after making a connection.


Network interface (ex. a network adapter card on the attached device), network cable, or switch port is defective.

• Power off and re-power on the VDSL bridged.

• Verify that the bridge and attached device are power on.

• Be sure the cable is plugged into both the bridge and corresponding device.

• Check if the proper cable type is used and its length exceed specified limits.

• Check the bridge on the attached device and cable connections for possible defects.

• Replace the defective bridge or cable if necessary.


3. Line speed LEDs do not light up green only, LEDs light up both green and yellow after making a     connection.


It is a normal response of the device when it is running at 32 to 64Mbps or SNR value at 23 to 27dB.

To increase the data speed to more than 64Mbps, so that line speed LED will light up green then you have to increase the SNR value to 28 or above. Either by decreasing the coaxial cable distance or by decreasing the number of splitters connected to the coaxial cable.


4. I connect TV signal to NH-310C, why TV signal can’t show on TV.


Because the TV signal is too weak or other factors.

Please verify that the following items to help you clarify the problem:
1. Verify coaxial cable must use RG59 75 ohm cable.
2. Verify TV signal source and TV if available.
3. Check TV signal need to over 50MHz that will be passed.
4. Add TV signal repeater if TV signal source is too weak. (See Figure, Situation A)

5. Add attenuator before TV if TV signal is too strong.(See Figure, Situation B)


  1. 1. Weakened by the output television signal is due to environmental factors. NH-310C supports TV signal pass through, but can not guarantee to be able to maintain an appropriate TV signal output to TV, If the connection distance is too long lead to output of TV signal no signal or attenuation.
  2. 2. Please note that NH-310C TV signals input power is unlimited, user does not need add the attenuator before NH-310C to weaken the TV signal source.
3. If TV signal is too strong, leading to the advent of television ripple, please add an attenuator before TV.


5. Why do the NH-310C units have MAC addresses and what are the MAC Addresses used for?


Because NH-310C can support 10 endpoints maximum and it uses the MAC address value to identify the identity of each endpoint.