ELTEX NTU-1 User manual

NTU-1
User manual, version 1.1 (22 May 2017)
Optical Network Terminals
IP address: http://192.168.1.1
User name: user
Password: user

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2NTU-1 Optical Network Terminals
Firmware version
NTU-1 3.24.1.232
Document version
Issue date
Content of changes
1.0
20 August 2015
First issue
1.1
22 May 2017
Second issue
NOTES AND WARNINGS
The notes contain important information, tips or recommendations on device operation and setup.
Warnings are used to inform users about harmful situations for the device and the user alike, which
could cause malfunction or data loss.

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NTU-1 Optical Network Terminals 3
TABLE OF CONTENTS
NOTES AND WARNINGS...............................................................................................................................................................2
1 INTRODUCTION.........................................................................................................................................................................4
2 DEVICE DESCRIPTION ................................................................................................................................................................5
2.1 Application ........................................................................................................................................................................5
2.2 Device Specification ..........................................................................................................................................................6
2.3 Key Specifications..............................................................................................................................................................7
2.4 Design................................................................................................................................................................................8
2.5 Light Indication................................................................................................................................................................10
2.7 Reboot and Reset to Factory Settings.......................................................................................................................10
2.8 Delivery Package .......................................................................................................................................................10
3 NTU CONFIGURATION THROUGH WEB INTERFACE. USER ACCESS........................................................................................11
3.1. The Status menu. Information about the device status ...........................................................................................12
3.1.1. The Device submenu. Device General Information.............................................................................................12
3.1.2. The PON submenu. Information about the optical module status .....................................................................12
3.2. The LAN menu. LAN Interface Settings .....................................................................................................................13
3.3. The Admin menu. Administration Settings ...............................................................................................................13
3.3.1 The GPON Settings submenu. Settings GPON-network Access.....................................................................13
3.3.2 The Commit/Reboot submenu. Commit changes and rebooting the device ................................................14
3.3.3 The Password submenu. Access Control Configuration (password settings) ................................................14
3.3.4 The Firmware Upgrade submenu. Firmware Update ....................................................................................14
3.4. Statistics menu..........................................................................................................................................................15
3.4.1 The Interface submenu. Network Interface statistics ...................................................................................15
3.4.2 The PON submenu. PON-interface statistics .................................................................................................15
APPENDIX A –POSSIBLE PROBLEMS AND OPTIONS FOR THEIR SOLUTION ..........................................................................17
ACCEPTANCE CERTIFICATE AND WARRANTY.............................................................................................................................18

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4NTU-1 Optical Network Terminals
1INTRODUCTION
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 is designed to connect terminal equipment of user to
broadband access services. ONT can be used in residential estates and offices.
The range of ONT NTU equipment produced by Eltex comprises of the following terminals:
–NTU-1 with one Ethernet user network interfaces (UNI) –1 Ethernet 10/100/1000 Base-T;
–NTU-2V with two Ethernet user network interfaces (UNI) –1 Ethernet 10/100 Base-T port, 1 Ethernet
10/100/1000 Base-T port –and one FXS port;
–NTU-RG-1402G-W, which are designed to support four UNI: 10/100/1000Base-T, FXS, Wi-Fi, and USB.
The Operation Manual describes application, key specifications, configuration, monitoring, and software
retrofit for NTU-1 optical terminals.

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NTU-1 Optical Network Terminals 5
2DEVICE DESCRIPTION
2.1 Application
NTU-1 GPON ONT (Gigabit Ethernet Passive Optical Network) devices represent high-performance
network terminals designed for connection with upstream GPON equipment and providing end user with
broadcast access services. GPON connection is established through the PON interface, while Ethernet interfaces
are used for connection of terminal equipment. A distinctive feature of the NTU-1 user terminal is the ability to
supply power through the twisted pair cable in an Ethernet network (distance up to 40 meters).
The key GPON advantage is the optimal use of bandwidth. The technology is the next step of high-speed
Internet applications for home and office. Being designed for home or office network deployment, these ONT
devices provide users, who live and work in distant flat buildings and business centers, with reliable connection
with high throughput at large distances.
NTU-1 devices are designed to support various interfaces and features (see Table 1).
Table 1 –NTU-1 interfaces
Model Name
WAN
LAN
FXS
Wi-Fi
USB
NTU-1
1xGPON
1х1Gigabit
-
-
-

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6NTU-1 Optical Network Terminals
2.2 Device Specification
The device has the following interfaces:
–1 PON SC/APC port for connection to operator's network.
–1 Ethernet RJ-45 LAN ports for connection of network devices.
The terminal uses an external adapter for 220 V / 12 V power supply. It is also possible to power the device
via the Ethernet-cable UTP CAT-5E (when using GRT-120100A power supply), the maximum distance - 40
meters.
The device supports the following functions:
Network functions:
–bridge mode;
–QoS;
–IGMP-snooping.
Firmware update via web interface, OMCI.
Remote monitoring, configuration, and setup via OMCI.
Fig. 1 shows a diagram of the NTU equipment connection.
Fig. 1 –Connection of NTU-1

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NTU-1 Optical Network Terminals 7
2.3 Key Specifications
Table 2 lists key specifications of the terminals.
Table 2–Key Specifications
Parameters of Ethernet LAN Interface
Number of interfaces
1
Socket
RJ-45
Data rate, Mbps
Autodetection, 10/100/1000 Mbps,
duplex/half-duplex
Supported 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
Parameters of PON Interface
Number of PON interfaces
1
Supported standards
ITU-T G.984.x Gigabit-capable passive optical networks (GPON)
ITU-T G.988 ONU management and control interface (OMCI)
specification
FSAN Class B+
SFF-8472
IEEE 802.1Q Tagged VLAN
IEEE 802.1p Priority Queues
IEEE 802.1D Spanning Tree Protocol
Connector type
SC/APC
according to ITU-T G.984.2
Transmission medium
fibre optical cable SMF-9/125, G.652
Splitting ratio
up to 1:64
Maximum range of coverage
20 km
Transmitter:
1310 nm
Upstream connection speed
1244 Mbps
Transmitter power
from +0.5 to +5 dBm
Optical spectrum width (RMS)
1 nm
Receiver
1490 nm
Downstream connection speed
2488 Mbps
Receiver sensitivity
-28 dBm
Receiver Optical Overload
-4 dBm
Control
Local control
web interface
Remote control
OMCI
Firmware update
OMCI, HTTP
Access restriction
password
General parameters
Power supply
–12 V DC /220 AC power adapter;
–Remote power on the Ethernet-cable UTP CAT-5E (up to 40m)1
Power consumption
5 W max.
Operating temperature range
from +5 to 40°C
1When using the power supply GRT-120100A

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8NTU-1 Optical Network Terminals
Relative humidity
up to 80 %
Dimensions
112x100x32 mm
Weight
0,25 kg
2.4 Design
NTU-1 devices are designed as a 112×100×32 mm desktop device in a plastic housing.
Fig. 2 shows NTU-1 rear panel.
Fig. 2 –NTU-1 Rear Panel
Connectors and controls located on the rear panel of NTU-1 are listed in Table 3.
Table 3 –Description of LEDs and Controls Located on the Rear Panel
Rear Panel Element
Description
1
12V
Power adapter connector
2
10/100/1000
RJ-45 10/100/1000Base-T port for connection of network devices
3
PON
SC port (socket) for connection to PON with GPON interface

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NTU-1 Optical Network Terminals 9
Fig. 3 shows a NTU-1 side and top panels.
Fig. 3 –NTU-1 Top and Side Panel
Controls and LED indicators located on the NTU-1 side and top panels are listed in Table 4.
Table 4 –Description of LEDs and Controls Located on the Side and Top Panels
Panel Element
Description
4
Power
power on indicator
5
Status
device authentication indicator
6
Link Act.
Ethernet ports indicator
7
Speed
Ethernet-port connection speed indicator
8
PON Link
optical interface indicator
9
PON Alarm
connection with the station indicator optical terminal
10
Reset
a functional key that reboots the device and resets it to factory settings

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10 NTU-1 Optical Network Terminals
2.5 Light Indication
The Power, Status, Link Act., Speed, PON Link, PON Alarm, Reset indicators located on the top panel
show the device current status.
Table 5 lists possible statuses of the LEDs.
Table 5 –Light Indication of Device Status
LED
LED Status
Device Status
Power
off
device is disconnected from the power source or faulty
Status
off
during loading device or a default configuration
orange
the process of getting configuration by OMCI
red
an error in the configuration process by OMCI
green
OMCI configuration is completed successfully, the device is working properly
Link Act.
off
there is no connection to the LAN-port
green
established LAN connection
flashes
Data transmission process
Speed
off
there is no connection to the LAN-port
orange
established 1000 Mbps connection
green
established 10/100 Mbps connection
PON Link
off
no signal from optical line terminal
flashes slowly
device is not registered on optical line terminal
flashes rapidly
transferring data packets
green
a connection between the station and the optical terminal device
PON Alarm
off
a connection between the station and the optical terminal device
red
no signal from optical line terminal
2.7 Reboot and Reset to Factory Settings
For device reboot, press the Reset button once on the device side panel. In order to reset the device to
factory settings, press the Reset button and gold it for 7-10 seconds until the POWER LED glows red. Factory
settings for IP address are: LAN –192.168.1.1, subnet mask –255.255.255.0.
2.8 Delivery Package
The standard delivery package of NTU-1 includes:
–NTU-1 optical network terminal;
–220V/12V power adapter;
–Operation Manual.