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NV-600R - VDSL2 CPE Router

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  VDSL2 CPE Router



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NV-600 is a VDSL2 router equipped with four 10/100 Ethernet ports. It is compliant to ITU-T G.993.2 standard and supports VDSL2 30a profile that features 100Mbps of symmetric data and it is perfectly suitable for triple-play applications. NV-600 is a cost effective solution that delivers high-speed Internet access to end-users over existing copper wire infrastructure and is designed to meet the requirements of ISPs and carriers that intend to cover end users in different loop range areas.


Flexible Configuration

The NV-600R support two modes, one is Bridge mode, another is Router mode. Bridge mode is easy to install, and features a variety of packet can be directly pass through. Router mode is a router which networking device that forwards data packets between computer networks. Routers perform the "traffic directing" functions on the Internet. A data packet is typically forwarded from one router to another through the networks that constitute the internet work until it reaches its destination node.


Interleave delay support

Interleave delay function is used in digital data transmission technology to protect the transmission against noise issue and data error.
If during transit more than a certain amount of data has been lost then the data cannot be correctly decoded. Short bursts of noise on the line can cause these data packets to become corrupt and the bridge has to re-request data which in turn can slow down the overall rate at which data is transmitted.
Interleaving is a method of taking data packets, chopping them up into smaller bits and then rearranging them so that
once contiguous data is now spaced further apart into a non continuous stream. Data packets are re-assembled by your lan extender.



• Compliant with IEEE 802.3 & 802.3u Ethernet Standard
• Compliant with ITU-T G993.2 VDSL2 standard
• Provides 4 x 10/100M auto-negotiation RJ-45 Ethernet port
• Supports Bandwidth up to 100Mbps over RJ-11 ports
• Provides POTS / ISDN Splitter on board
• Supports Downstream Power Back-Off(DPBO)
• Supports auto speed for VDSL2 port
• Supports Web management(HTTP), TFTP, Console(RS232C)
• Supports uPnP/PPPoE/NAT/DHCP/DMZ/Firewall
• Supports Router & Switch(Bridge) mode
• Supports Loop back test
• Supports SNR indicator for check phone wiring quality
• Supports Interleave delay for Data Error & Noise Against
• Support 8a, 8b, 8c, 8d, 12a, 12b, 17a, 17b, 30a band profile
• Support 997,998 band plan
• Provides surge protection for VDSL2 port
• EMI Compliant: CE, FCC, VCCI
* Specifications are subject to change without prior notice.




 Standard Conformance
 IEEE802.3 standard
 IEEE802.3u standard
 ITU-T G993.2 VDSL2 standard

 Regulatory Compliance:



 RoHS compliance

 Hardware Specifications
 Physical Interface:

 4 x RJ-45 10/100Mbps auto-negotiation Ethernet port
 1 x RJ-11/Terminal Block connector for VDSL2 line port

 1 x RJ-11 connector for POTS/ISDN device

 1 x Console port(RS-232C/115200bps)

 Band Profile:
 8a, 8b, 8c, 8d, 12a, 12b, 17a, 17b, 30a
 Band Plan:
 997, 998
 Max. Bandwidth:
 Symmetric 100 Mbps / 0.3 Km
 LED indication:
 1 x Power LED
 4 x Link/Active Status for Ethernet port
 1 x Link LED for VDSL2 port
 Switch method:
 Store and forward
 Flow control:
 Full duplex: IEEE 802.3x
 Half duplex: Back pressure
 Typical Power Consumption:
 Power Supply:
 Input: AC 85~240 volts / 50~60Hz
 Output: DC 12V / 1A
 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)
 184 x 146 x 40 mm (7.2" x 5.74" x 1.57")
 Net Weight:
 approx. 0.96 kg
 Intel MIPS ADM5120P

 Intel VINAX


* Specifications are subject to change without prior notice.



LAN Distance Extension
The NV-600L/NV-600R acting as a standalone pair is good for Ethernet distance extension over existing telephone wires. With just one pair of AWG-24 copper wire, you can easily connect the maximum data rate of 100Mbps and up to 3km distance support. It is easy-to-use which do not requires installation of additional wiring. Every modular phone jack in the building can become a port on the LAN.






Release Date
Dec, 2008
July, 2014
  User's manual
  Performance Table




1. What is NV-600RI related products?


NV-600RI can fully compatible with NV-600L, NV-600LI, NV802S, NV-1602S.


2. 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.


3. 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.


4. Why is the VDSL Link cannot be established.


Because VDSL setting failure or phone cable length is over the specification limit.

4.1 Please make sure that the phone wire must be connected between NV-600LI(CO) and NV-600RI(CPE) when both are power on. NV-600LI(CO) will do link speed function depending on phone wire length, therefore if NV-600LI(CO) can’t detect NV-600RI(CPE) over phone wire while both power on, this will cause the link to fail.
4.2 Please check phone wire, we recommend use 24-26 gauge with twisted pair and without rust.
4.3 Please check the correct Dip Switch setting.
4.4 Please reinsert power when change cable length or link time over 3 minutes.


Phone wire must meet CAT 3 standard or above and without clustering, otherwise will cause more cross talk issue to reduce DSL power driver.


5. What is VDSL2?


Very-high-speed digital subscriber line 2 (VDSL2) is an access technology that exploits the existing infrastructure of copper wires that were originally deployed for traditional telephone service. It can be deployed from central offices, from fiber-optic connected cabinets located near the customer premises, or within buildings. It was defined in standard ITU-T G.993.2 finalized in 2005.
VDSL2 was the newest and most advanced standard of digital subscriber line (DSL) broadband wireline communications. Designed to support the wide deployment of triple play services such as voice, video, data, high definition television (HDTV) and interactive gaming, VDSL2 was intended to enable operators and carriers to gradually, flexibly, and cost-efficiently upgrade existing xDSL infrastructure.

The protocol was standardized in the International Telecommunication Union telecommunications sector (ITU-T) as Recommendation G.993.2. It was announced as finalized on 27 May 2005,[1] and first published on 17 February 2006. Several corrections and amendments were published in 2007 through 2011.

VDSL2 is an enhancement to very-high-bitrate digital subscriber line (VDSL), Recommendation G.993.1. It permits the transmission of asymmetric and symmetric aggregate data rates up to 200 Mbit/s downstream and upstream on twisted pairs using a bandwidth up to 30 MHz.

VDSL2 deteriorates quickly from a theoretical maximum of 250 Mbit/s at source to 100 Mbit/s at 0.5 km (1,600 ft) and 50 Mbit/s at 1 km (3,300 ft), but degrades at a much slower rate from there, and still outperforms VDSL. Starting from 1.6 km (1 mi) its performance is equal to ADSL2+.

ADSL-like long reach performance is one of the key advantages of VDSL2. LR-VDSL2 enabled systems are capable of supporting speeds of around 1–4 Mbit/s (downstream) over distances of 4–5 km (2.5–3 miles), gradually increasing the bit rate up to symmetric 100 Mbit/s as loop-length shortens. This means that VDSL2-based systems, unlike VDSL1 systems, are not limited to short local loops or MTU/MDUs only, but can also be used for medium range applications.


6. What is SNR(Signal-to-Noise)


Signal-to-noise ratio (often abbreviated SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. It is defined as the ratio of signal power to the noise power. A ratio higher than 1:1 indicates more signal than noise. While SNR is commonly quoted for electrical signals, it can be applied to any form of signal (such as isotope levels in an ice core or biochemical signaling between cells). The ratio is usually measured in decibels(dB)

The signal-to-noise ratio, the bandwidth, and the channel capacity of a communication channel are connected by the Shannon–Hartley theorem.

In digital communications, the SNR will probably cause a reduction in data speed because of frequent errors that require the source (transmitting) computer or terminal to resend some packets of data. SNR measures the quality of a transmission channel over a network channel. The greater the ratio, the easier it is to identify and subsequently isolate and eliminate the source of noise.


7. Connected the Co and CPE within 300 meters RJ-11 phone cable got only less than 10 Mbit/s



  1. • Some testing program which is base on TCP/IP protocol such as FTP, Iperf, NetIQ, the bandwidth of testing outcome will be limited by TCP window size.

• Some operating system limited the maximum bandwidth, such as windows series OS.


We recommend to test VDSL2 bandwidth best by Smartbit equipment (Packet generator), if you don't have Smartbit, we recommend test that by IPERF program, and TCP window size must be setted max. 64k, the parameter as iperf –c server IP address –i 1 –t 50 –w 65535 for client side.

8. VDSL2 CO router cannot link with CPE router.
  1. The VDSL2 CO/CPE mode settings of VDSL2 router become unknown.

    VDSL2 CO and CPE router tone mode is different due to mixed use of new and old hardware VDSL2 routers.


    1. Using the console, reboot the system and go to loader menu. Select set boot parameters and choose the VDSL2 CO/CPE mode correctly. Choose “1” if it is CO router and “0” if it is CPE router. Do not just press enter to skip the setting as it will not retain even if the setting is correct, then it will become unknown causing the VDSL2 router not to link. 1: NV-600LI. 0: NV-600RI.

    2. Update the old hardware to latest firmware so that you can set the same tone mode for both CO and CPE router.

9. What is the maximum Ethernet frame MTU for these routers?


NV-600LI/RI maximum ethernet frame MTU is 1536 bytes.