OLT LTP-16N, LTP-16NT. User Manual
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2 General information
2.1 Introduction
A GPON is a network of passive optical networks (PON) type. It is one of the most effective state-of-the-art
solutions for the 'last mile' issue that significantly reduces the required amount of cable and provides data
transfer with downstream rate up to 2.5 Gbps and upstream 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.
The range of OLT GPON equipment produced by Eltex comprises of LTP-16N and LTP-16NT terminals with
internal Ethernet switch with RSSI function and 16 GPON ports.
This user manual describes purpose, main technical specifications, installation order, rules of configuration,
monitoring, and software update for the devices.
2.2 Purpose
The LTP-16N(T) optical line terminal is designed to establish connection with upstream equipment and provide
broadband access across passive optical networks. Ethernet connection is established through Gigabit uplink
and 10G Base-X interfaces; GPON interfaces are used to connect to optical networks. Each PON interface
allows connection of up to 128 subscriber optical terminals through one fibre and supports dynamic
bandwidth allocation (DBA).
The following services are provided to end users:
voice communications;
HDTV;
VoIP;
high-speed access to the Internet;
IPTV;
video-on-demand (VoD);
video conferencing;
online educational and entertainment programs.
The device supports the following functions:
dynamic bandwidth allocation (DBA);
security functions;
remote ONT management;
power measurement support for signals received from each ONT (RSSI);
VLAN organisation (VLAN ID range: 1–4094);
support for IGMP snooping v1/2/3, IGMP proxy;
support for PPPoE intermediate agent;
support for DHCP Snooping, DHCP option 82.
2.3 Delivery Package
The standard delivery package includes:
LTP-16N/16NT optical line terminal;
Mounting set for 19'' rack.
RJ-45 – DB9(F) console cable;
CD with Operation Manual and Quick Configuration Guide (optional);