ELTEX NTU-52V User manual

IP address:192.168.1.1
Username:user
Password:user

    
Optical network terminals
User manual
Firmware version1.2.1

NTU-52V/VC. User manual (user)
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Contents
1 Introduction ............................................................................................................................................4
2 Product Description ...............................................................................................................................5
2.1 Purpose ..................................................................................................................................................5
2.2 Models....................................................................................................................................................5
2.3 Device Specification ..............................................................................................................................6
2.4 Key Specifications .................................................................................................................................8
3 Design...................................................................................................................................................11
3.1 Light Indication ....................................................................................................................................13
3.2 Delivery Package..................................................................................................................................17
4 NTU-52V/VC architecture....................................................................................................................18
5 Device configuration via Web interface. Administrator Access .......................................................19
5.1 The 'Status' menu. Device Information...............................................................................................21
5.1.1 The 'Device status' submenu. Device General Information...............................................................21
5.1.2 The 'IPv6 Status' submenu. Information about IPv6 system ............................................................22
5.1.3 The 'PON' submenu. Optical module status information ..................................................................23
5.2 The 'LAN' menu LAN interface configuration.....................................................................................24
5.3 The Services menu. Service configuration.........................................................................................25
5.3.1 The 'DHCP Setting' submenu. DHCP configuration...........................................................................25
5.3.2 The 'Dynamic DNS' submenu. Dynamic DNS Configuration .............................................................26
5.3.3 The 'Firewall' submenu. Firewall configuration..................................................................................27
5.3.4 The 'UPnP' submenu. Automated Setup of Network Devices...........................................................32
5.3.5 The 'RIP' submenu. Dynamic routing configuration...........................................................................32
5.3.6 The 'Samba' submenu. Configuration of Samba users.....................................................................33
5.4 The 'Advance' menu. Advanced settings............................................................................................34
5.4.1 The 'ARP Table' menu. View ARP cache ............................................................................................34
5.4.2 The 'Bridging' submenu. Bridging parameters configuration............................................................34
5.4.3 The 'Routing' submenu. Routing configuration..................................................................................35
5.4.4 The 'Bridging grouping' submenu. Interface grouping ......................................................................36
5.4.5 The 'Link mode' submenu. LAN ports configuration .........................................................................37
5.4.6 The 'IPv6' submenu. IPv6 configuration .............................................................................................37
5.5 The 'Diagnostics' menu .......................................................................................................................41
5.5.1 The 'Ping' submenu. Checking the Availability of Network Devices.................................................41
5.5.2 The 'Traceroute' submenu...................................................................................................................41

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5.6 The 'Admin' menu ................................................................................................................................42
5.6.1 The 'Settings' submenu. Configuration restore and reset.................................................................42
5.6.2 The 'Commit/Reboot' submenu. Saving changes and rebooting the device ...................................42
5.6.3 The 'Logout' submenu .........................................................................................................................43
5.6.4 The 'Password' submenu. Access control configuration (setting passwords) ...............................43
5.6.5 The 'Firmware upgrade' submenu. Software Update ........................................................................44
5.6.6 The 'Remote Access' submenu. Remote access rules configuration ..............................................44
5.6.7 The 'Time zone' submenu. System time configuration .....................................................................45
5.7 The 'Statistics' menu. Traffic flow information for device ports ......................................................46
5.7.1 The 'Interface' submenu. Information about timers and errors ........................................................46
5.7.2 Th 'PON' submenu................................................................................................................................47
6 The list of changes ..............................................................................................................................48

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1 Introduction
A GPON is a network of passive optical networks (PON) type. It is one of the most effective state-of-the-art
solutions of the last mile issue that enables cable economy and provides information transfer downlink rate up
to 2.5 Gbps and uplink rate up to 1.25 Gbps. Being used in access networks, GPON-based solutions allow end
users to have access to new services based on IP protocol in addition to more common ones.
The key GPON advantage is the use of one optical line terminal (OLT) for multiple optical network terminals
(ONT). OLT converts Gigabit Ethernet and GPON interfaces and is used to connect a PON network with data
communication networks of a higher level. ONT device is designed to connect user terminal equipment to
broadband access services. It can be used in residential areas and office buildings.
The range of ONT NTU equipment produced by ELTEX comprises of terminals with two UNI interfaces of
10/100/1000Base-T and supports for FXS, USB1, RF2interfaces:
NTU-52V,NTU-52VC
This user manual describes intended use, main specifications, configuration, monitoring, and firmware update
for NTU-52V/VC optical terminals.
Notes and warnings
1For NTU-52V
2For NTU-52VC
Notes contain important information, tips, or recommendations on device operation and setup.

Warnings inform users about hazardous conditions which may cause injuries or device damage and
may lead to the device malfunctioning or data loss.


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2 Product Description
2.1 Purpose
NTU-52V/VC GPON ONT (Gigabit Ethernet Passive Optical Network) devices represent high-performance user
terminals designed to establish a connection with upstream passive optical network equipment and to provide
broadband access services to the end user. GPON connection is established through the PON interface, while
Ethernet interfaces are used for connection of terminal equipment.
The key GPON advantage is the optimal use of bandwidth. This technology is considered as the next step in
provisioning of new high-speed Internet applications at home and office. Being developed for network
deployment inside houses or buildings, these ONT devices provide robust connection with high throughput and
at long distances for users living and working at remote apartment and office buildings.
An integrated router allows local network equipment to be connected to a broadband access network. The
terminals protect PCs from DoS and virus attacks with the help of firewall and filter packets to control access
based on ports and MAC/IP addresses of source and target.Users can configure a home or office web site by
adding a LAN port into DMZ. The 'Parental Control' feature provides filtering of Web sites with inappropriate
content, domain blocking. Virtual private network (VPN) provides mobile users and branch offices with a
protected communication channel for connection to a corporate network.
FXS port enable IP telephony and provide various useful features such as display of caller ID, three-way
conference call, phone book, and speed dialling. This makes dialling and call pick-up user friendly.
USB ports can be used for USB-enabled devices (USB flash drives, external HDD).
NTU-52VC device has an integrated RF output, to which a TV is connected to watch analog or digital cable
television (if the service is provided by the carrier).
2.2 Models
NTU-52V/VC series devices are designed to support various interfaces and features, seeTable 1.
Table 1 – Models
Model name WAN LAN FXS TV USB
NTU-52V 1xGPON 1xFastEthernet, 1xGigabit Ethernet 1 - 1
NTU-52VC 1xGPON 1xFastEthernet, 1xGigabit Ethernet 1 1 -

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2.3 Device Specification
Device is equipped with the following interfaces:
Ports to connect network devices (FXS):
1 RJ-11 port1;
1 RJ-45 port2.
1xPON SC/APC port for connection to provider's network (WAN);
Ethernet RJ-45 LAN ports for connection of network devices (LAN):
1 port of RJ-45 10/100Base-T (for details see Section 3. Design);
1 port ofRJ-45 10/100/1000Base-T (for details see Section 3. Design);
1 USB 2.0 port for external USB or HDD storages2.
1 RF port for cable television (CaTV) connection1.
1Only forNTU-52VC
2Only for NTU-52V
The device supports the following functions: The terminal uses an external adapter for 220V/12V power
supply.
Network functions:
bridge or router operation mode;
PPPoE (auto, PAP, CHAP, MSCHAP authorization);
IPoE (DHCP-client and static);
static IP address and DHCP (DHCP client on WAN side, DHCP server on LAN side);
DNS (Domain Name System);
DynDNS (Dynamic DNS);
UPnP (Universal Plug and Play);
IPsec (IP Security);
NAT (Network Address Translation);
Firewall;
NTP (Network Time Protocol);
QoS;
IGMP snooping;
IGMP proxy;
Parental Control;
Storage service;
SMB, FTP, Print Server;
VLAN in accordance with IEEE 802.1Q.
VoIP
SIP
audio codecs: G.729 (A), G.711(A/U), G.723.1;
echo cancellation (G.164 and G.165 guidelines);
Voice activity detection (VAD);
Comfort noise generator (CNG);
DTMF signal detection and generation
DTMF transmission (INBAND, RFC2833, SIP INFO)
Fax transmission: G.711, T.38
Caller ID display.
Firmware updates via web interface, TR-069, OMCI.

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Remote monitoring, configuration and setup:
TR-069;
Web interface;
OMCI.
CaTV1.
1Only forNTU-52VC
The figures below illustrate applications schemes of NTU-52V/VC.
Figure 1 –NTU-52V and NTU-52VC application diagram

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2.4 Key Specifications
Table 2 shows main specifications of the terminals:
Table 2 — Main Specifications
VoIP protocols
Supported protocols SIP
Audiocodecs
Codecs G.729, annex A
G.711(A/µ)
G.723.1 (5,3 Kbps)
Fax transmission: G.711, T.38
Ethernet LAN interface parameters
Number of interfaces 2
Socket RJ-45
Data rate Auto-negotiation, 10/100/1000 Mbps,
duplex/half-duplex
Standards IEEE 802.3i 10Base-T Ethernet
IEEE 802.3u 100Base-TX Fast Ethernet
IEEE 802.3ab 1000Base-T Gigabit Ethernet
IEEE 802.3x Flow Control
IEEE 802.3 NWay auto-negotiation
PON interface parameters
Number of interfaces 1
Standards ITU-T G.984.x Gigabit-capable passive optical networks
(GPON)
ITU-T G.988 ONU management and control interface (OMCI)
specification
IEEE 802.1Q Tagged VLAN
IEEE 802.1P Priority Queues
IEEE 802.1D Spanning Tree Protocol
Connector type SC/APC in accordance with ITU-T G.984.2, ITU-T G.984.5
Filter, FSAN Class B+, SFF-8472
Transmission environment Fiber optical cable SMF—9/125, G.652
Splitting ratio Up to 1:128

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Maximum range of coverage 20 km
Transmitter: 1310 nm
Upstream connection speed 1244 Mbps
Transmitter power +0,5 to +5 dBm
Optical spectrum width (RMS) 1 nm
Receiver: 1490 nm
Downstream connection speed 2488 Mbps
Receiver sensitivity from -8 to -28, BER≤1.0x10-10
Receiver optical congestion -4 dBm
Subscriber analogue ports parameters
Number of ports NTU-52V NTU-52VC
1 1
Loop resistance Up to 2kΩ
Call reception Pulse/frequency (DTMF)
Caller ID display Yes
Control
Local control Web interface
Remote control Telnet, TR-069, OMCI
Firmware update OMCI, TR-069, HTTP
Acces restriction By password

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General parameters
Model NTU-52V NTU-52VC
Power supply 12 VDC/220 VAC power adapter 12 VDC/220 VAC power adapter
RF port - 1
Max. power consumption 10 W
Operating temperature From +5 to +40°С
Relative humidity 80% max.
Dimensions 147×110×24 mm 160×120×40 mm
Weight 0,3 kg

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3 Design
Subscriber terminal is designed as desktop device in plastic housing.
The rear panel layout of the devices is depicted in Fig. 2, 3.
Figure 2— NTU-52V rear panel layout
Connectors and controls located on the rear panel of 52V are listed in Table 3.
Table 3 – Description of the connectors and controls on the rear panel
# Rear panel element Description
1 PON SC port (socket) for PON with GPON interface
2 Phone RJ-45 connector for analogue phone connection
3 LAN 10/100 RJ-45 port for network devices connection (Ethernet/Fast Ethernet)
4 LAN 10/100/1000 RJ-45 port for network devices connection (Gigabit Ethernet)
5 USB Connector for external drives and other USB devices
6 12V Power adapter connector

Connectors and controls located on the rear panel of 52VC are listed in Table 4.

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Table 4 – Description of the connectors and controls on the rear panel
# Rear panel element Description
1 On/Off Power button
2 12V Power adapter connector
3 F A functional key that reboots the device and resets it to factory settings
4 TV RF port for connecting a coaxial cable
5 LAN 10/100 RJ-45 port for network devices connection (Ethernet/Fast Ethernet)
6 LAN 10/100/1000 RJ-45 port for network devices connection (Gigabit Ethernet)
7 Phone RJ-11 connector for analogue phone connection
8 PON SC port (socket) for PON with GPON interface
The side panel layout of the NTU-52V is depicted in figure below.
Figure 4— NTU-52V side panel layout
See Table 5 for detailed information about buttons located on the side panel of the device.
Table 5 – Description of the side panel LED indicators
# Side panel element Description
1 LED LED on/off button
2 Reset/restore A functional key that reboots the device and resets it to factory settings

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3.1 Light Indication
The top panel layout of the NTU-52V is depicted in Fig. 5, the front panel layout is depicted in Fig. 6.
Figure 5— NTU-52V top panel layout
Figure 6— NTU-52V front panel layout
The LED indicators located on the top and front panels show the current device status. Table 6 lists possible
statuses of the LEDs.

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Table 6 – Description of NTU-52V front and top panel LEDs
# Front panel element LED Status Description
1
- power indicator green power is connected
off power is not connected
2
- operation status indicator
flashes slowly the firmware update process is in
progress
orange device startup is completed, the
default configuration is set
green device startup completed, the current
device configuration differs from the
default
3
-optical interface operation
indicator
off the device is not connected to OLT
flashes green the device is in the registration
process on OLT
green the device is connected and
registered on OLT
4-optical interface status
indicator
off the device is connected to OLT
flashes red laser is off at LT side
red there is no signal from OLT
5
- 'Internet' status indicator
off there is no active connection to
Internet
green the device is ready, connection
established
flashes green the device is in connection process
6
-SIP registration indicator
off VoIP service is not configured
green VoIP service is successfully activated
flashes green port is not registered or SIP
authentication is not completed on
server
7
-FXS port activity indicator
off phone is off hook
flashes green receiving a call

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# Front panel element LED Status Description
green phone is on hook
8-9 -1..2 –Ethernet port activity
indicator
green established 10/100 Mbps connection
orange established 1000 Mbps connection
flashes green/orange
rapidly
data transfer is in progress
10 -USB port operation indicator off USB device is not connected
green USB device is connected
flashes green data transfer is in progress
The front panel layout of the NTU-52VC is depicted in Figure 7.
Figure 7— NTU-52VC front panel layout
The LED indicators located on the front panel show the current state of the device. Table 7 provides possible
statuses of the LEDs.

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Table 7 – Description of NTU-52VC front panel LEDs
# Front panel element LED Status Description
1–FXS port activity indicator off phone is off hook
flashes green receiving a call
green phone is on hook
2-3 -1–10/100 Mbps Ethernet port
operation indicator
green established 10/100 Mbps
connection
flashes green rapidly data transfer is in progress
-2– 10/100/1000 Mbps Ethernet
port operation indicator
green established 10/100 Mbps
connection
orange established 1000 Mbps connection
flashes green/orange
rapidly
data transfer is in progress
4–TV operation status indicator off RF port is disabled
orange CaTV signal power is in the range
from -10 dBm..-8 dBm or +2 dBm..
+3 dBm
green -8dBm < CaTV signal power <
+2dBm
5–optical interface activity
indicator
off device is rebooting
flashes red the device is not connected to OLT
flashes green the device is in the registration
process on OLT
green the device is connected and
registered on OLT
6–'Internet' operation status
indicator
off there is no active connection to
Internet
green the device is ready, connection
established
orange the device is in connection process
7–power indicator off power is disconnected or device is
fault
green device startup completed, the
current device configuration differs
from default

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# Front panel element LED Status Description
orange device startup is completed, the
default configuration is set
red device is booting
flashes slowly the firmware update process is in
progress
Reboot and Reset to Factory Settings
To reboot the device, press the 'Reset' button located on its side panel. In order to reset the device to the
factory settings, press the 'Reset' button and hold it for 7-10 seconds until the indicatorglows red and all other
LEDs go out. Factory settings for IP address are:LAN- 192.168.1.1,subnet mask– 255.255.255.0.Access can
be provided from LAN 1 and LAN 2.
3.2 Delivery Package
The NTU-52V/VC standard delivery package includes:
NTU-52V/VC optical network terminal;
220V/12V power adapter;
User manual.

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4 NTU-52V/VC architecture

Figure 8 – Logical architecture of a device with factory settings
Main Components of the Device:
Optical receiver/transmitter (SFF module) for conversion of an optical signal into an electric one;
Processor (PON chip) which converts Ethernet and GPON interfaces;
A device with factory (initial) settings have the following logical blocks (see Fig.8):
Br0;
Voice (VoIP block);
eth0…1;
FXS0;
IPInterface1.
Br0 blockhere is used to combine LAN ports into a single group.
The eth0..1 blocks physically represent Ethernet ports with RJ-45 connector for connection of PC, STB, or
other network devices. They are logically included intobr0block
FXS0 blockis a port with RJ-11 connectors for connection of analogue phone. It is logically included into the
Voice block. The Voice block can be controlled through web interface or remotely with ACS server via TR-069
standard. The block specifies VoIP service parameters (SIP server address, phone number, VAS, etc.).
FilterandMarkingblocks enable inclusion of local interfaces into a single group (tobr0block). They deal with
the traffic transmission rules,Filterblocks are responsible for the incoming traffic on the interface, Marking
blocks – for the outgoing one.
IPInterface1 blockis a logical entity on which IP address providing the access in LAN and DHCP server
distributing addresses to clients are located.

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5 Device configuration via Web interface. Administrator Access
Getting Started
To configure the device, it is necessary to connect to it through Web browser:
1.Open theWeb browser (program for viewing hypertext documents), for example, Firefox, Google
Chrome and etc.
2. Enter the device IP address in the browser address line
When the device is successfully connected, username and password request page will be shown in the
browser window:
3. Enter your username into ‘User Name’ and password into ‘Password’ field.
4. Click the ‘Login’ button. In the browser window, the home page of the device’s web interface will open.
Password changing
To prevent unauthorized access to device in the future, it is recommended to change password. To change the
password enter the new password in the'Admin' menu, 'Password' section in the 'NewPassword' and
'Confirmnewpassword' fields.
Factory default IP address: 192.168.1.1, subnet mask: 255.255.255.0
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Username:user, password:user.
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1.
2.
3.
Main elements of the web interface
General view of the device configuration window is depicted below.
The user interface window can be divided into 3 parts:
The navigation tree on the device settings menu.
The main settings window for the selected section.
User change button.