ELTEX LTP-16N Instruction sheet


Optical line terminals
LTP-16N, LTP-16NT
Quick configuration manual
Firmware version1.4.0

LTP-16N(T). Quick Configuration Manual
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Contents
1 Introduction ................................................................................................................................4
2 Safety rules and Installation procedure....................................................................................5
2.1 Safety requirements ..................................................................................................................5
2.2 Terminal installation ..................................................................................................................5
2.2.1 Power module installation..................................................................................................7
2.2.2 Connecting to power supply...............................................................................................8
3 Connecting to the terminal command line interface (CLI)......................................................9
3.1 Connecting via Telnet/SSH .......................................................................................................9
3.2 Connecting via serial port.........................................................................................................9
3.3 Changing the user password .................................................................................................10
4 LTP-16N(T) network parameters configuration.....................................................................11
5 OLT LTP-16N firmware update ...............................................................................................12
6 SNMP, SYSLOG, NTP services configuration.........................................................................13
6.1 SNMP configuration ................................................................................................................13
6.2 SYSLOG configuration .............................................................................................................13
6.3 NTP configuration....................................................................................................................14
7 VLAN configuration .................................................................................................................15
8 IGMP configuration..................................................................................................................16
9 CROSS-CONNECT, MANAGEMENT, PORTS profiles configuration for ONT .......................17
10 OLT profiles configuration: PPPoE Intermedia Agent, DHCP Relay Agent ..........................19
10.1 PPPoE Intermedia Agent configuration..................................................................................19
10.2 DHCP Relay Agent configuration ............................................................................................20
11 Adding and configuring ONT...................................................................................................21
12 APPENDIX A. RS-232 null modem cable wiring diagram .....................................................23
13 Appendix B.ONT NTU-1 configuration...................................................................................24
14 APPENDIX C. ONT/PON interfaces states table....................................................................28

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1 Introduction
Notes
Annotation
This manual provides information on safety precautions and installation procedures:
connection to the OLT LTP-16N(T) (hereinafter the device) command line interface;
OLT network parameters configuration;
VLAN configuration to provide different services on the device;
IGMP configuration on the device;
creation and modification of ONT profiles: Cross-connect, Ports, Management;
creation and modification of OLT profiles: pppoe-ia, dhcp-opt82;
addition of ONT subscriber devices.
The following scheme is given as an example, figure 1:
Figure 1 — Example of network configuration
Service type VLAN used
Internet 1100
VoIP 1101
IPTV (multicast) 30
STB 2349
MNG-ONT (acs) 1200
MNG OLT 3470
For operation, a PC application supporting Telnet or SSH protocol operation or direct connection via the
console port (e.g. HyperTerminal) is required.
Notes contain important information, tips or recommendations on device operation and configuration.
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2 Safety rules and Installation procedure
2.1 Safety requirements
General requirements
Any operation with the equipment should comply with the Rules for the technical operation of consumer
electrical installations.
Before operating the device, all engineers should undergo special training.
The terminal should be connected only to properly functioning supplementary equipment.
The device could be permanently used provided the following requirements are met:
ambient temperature from -5 to +40 °C;
relative humidity up to 80% at +25°C;
atmosphere pressure from 6.0×10*4 to 10.7×10*4 Pa (from 450 to 800 mmHg).
The terminal should be not be exposed to mechanical shock, vibration, smoke, dust, water, and
chemicals.
To avoid components overheating which may result in device malfunction, do not block air vents or
place objects on the equipment.
Electrical safety requirements
Prior to connecting the device to a power source, ensure that the equipment case is grounded with an
earth bonding point. The earthing wire should be securely connected to the earth bonding point. The
resistance between the earth bonding point and earthing busbar should be less than 0.1 Ω.
PC and measurement instruments should be grounded prior to connection to the terminal. The potential
difference between the equipment case and the cases of the instruments should be less than 1V.
Prior to turning the device on, ensure that all cables are undamaged and securely connected.
Make sure the device is off, when installing or removing the case.
Replacement of power modules is carried outwithout turning off the power.
SFP transceivers installation and removalcan be performed both with the power off and with the power
on.
2.2 Terminal installation
Check the device for visible mechanical damage before installing and turning it on. In case of any damage,
stop the installation, fill in a corresponding document and contact your supplier. If the terminal was exposed to
low temperatures for a long time before installation, leave it for 2 hours at ambient temperature prior to
operation. If the device was exposed to high humidity for a long time, leave it for at least 12 hours in normal
conditions prior to turning it on.
Support brackets mounting
The delivery package includes support brackets for rack installation and mounting screws to fix the terminal
case on the brackets. To install the support brackets:
Step 1.Align six mounting holes in the support bracket with the corresponding holes in the side panel of
the device.
Step 2.Use a screwdriver to screw the support bracket to the case.
Step 3.Repeat steps 1 and 2 for the second support bracket.
Operations with the terminal should be carried out only by personnel authorized in accordance with the
safety requirements.
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Figure 2 — Support brackets mounting
Terminal rack installation
To install the terminal to the rack:
Step 1.Attach the terminal to the vertical guides of the rack.
Step 2.Align mounting holes in the support bracket with the corresponding holes in the rack guides. Use
the holes of the same level on both sides of the guides to ensure the device horizontal installation.
Step 3.Use a screwdriver to attach the terminal to the rack.
Figure 3 — Device rack installation
The terminal is horizontally ventilated. The side panels have air vents. Do not block the air vents to avoid
components overheating and subsequent terminal malfunction.
To avoid overheating and to provide necessary ventilation of the terminal, sufficient space should be
provided above and below the terminal, not less than 10cm.
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2.2.1 Power module installation
Depending on power supply requirements, terminals can be supplemented with either an 220 V, 50 Hz AC
power module or a 48 V DC power supply module. The installation location for the power module for
LTP-16N(T) is shown in Figure 4.
Figure 4 — Power module installation
The devices can operate both with single power module and two power modules. Second power module is
necessary if device isis used in conditions requiring increased reliability.When using two power supply
modules, it is allowed to supply power from different power supplies (with different voltages).

Figure 5 — Power modules installation
Locations for installing power modules are electrically equivalent.From the point of device usage, power
module located closer to the edge is considered the main one, closer to the center — the backup one. Power
modules can be installed and removed without shutting down the device. When installing or removing
additional power modules, the device continues to operate without restarting.

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To install a power module:
Step 1.Install the power module into the device as shown in figure above;
Step 2. Screw the power module to the case;
Step 3.Turn the power on.
2.2.2 Connecting to power supply
Step 1. Mount the device. In case of installation to a 19" form-factor rack, mount the support brackets
from the delivery package to the rack.
Step 2. Ground the case of the device. This should be done prior to connecting the device to the power
supply. An insulated multiconductor wire should be used for earthing. The device grounding and the
earthing wire section should comply with Electric Installation Code. The earth bonding point is located at
the right bottom corner of the rear panel.
Step 3. If you intend to connect a PC or another device to the switch console port, the device must be
properly grounded as well.
Step 4. Connect the power supply cable to the device.
Step 5. Turn the device on and check the front panel LEDs to make sure the terminal is in normal
operating conditions. Indication description is given inOLT LTP-16N, LTP-16NT. User Manual (LED
indication).

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3 Connecting to the terminal command line interface (CLI)
3.1 Connecting via Telnet/SSH
Connect network cable to one of the LTP-16N(T) front-ports or to OOB. To connect via SSH/Telnet, the
following factory settings are used:
Default IP address: 192.168.1.2;
Default address mask:255.255.255.0;
Default gateway: 0.0.0.0;
Login:admin;
Password:password.
If the device does not connect using the factory IP address, connect to it via the COM port using a terminal
program and check the network settings(seeConnecting via serial port section).
3.2 Connecting via serial port
Thenull modemcable is used for connection.The null modem cable pin designation is given in Appendix
A.RS-232 null-modem cable pin designation.
To connect via the serial port, the following settings must be set:
Speed: 115200 bit/s;
Data bits: 8 bits;
Parity: no;
Stop bits: 1;
Flow control: none;
Login: admin;
Password: password.
Check the network settings with the show running-configmanagement allcommand.
Check the network settings:
LTP-16N# show running-config management all
management ip 192.168.1.2
management mask 255.255.255.0
management gateway 0.0.0.0
management vid 1
For security reasons, it is recommended to change the default password when connecting for the first
time (see Changing the user password section).

For security reasons, it is recommended to change the default password when connecting for the first
time (see Changing the user password section).
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3.3 Changing the user password
Enter the configuration mode:
LTP-16N# configure terminal
Show created users:
LTP-16N(configure)# do show running-config user all
Set new password for the admin:
LTP-16N(configure)# user admin password XXXX
Set new password for the root:
LTP-16N(configure)# user root password XXXX

Apply the configuration:
LTP-16N(configure)# do commit

Save configuration:
LTP-16N(configure)# do save

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4 LTP-16N(T) network parameters configuration
For remote management of LTP-16N(T), set network parameters of the device according to the settings of the
network that are intended to be used. Changing network parameters of the device is recommended when
connecting to the CLI interface via serial port.
Enter the configuration mode:
LTP-16N# configure terminal
Set the required network settings, e.g. IP=192.168.205.105, Mask=255.255.255.0, Gateway=192.168.205.230,
VLAN=4000.
LTP-16N(configure)# management ip 192.168.10.145
LTP-16N(configure)# management mask 255.255.240.0
LTP-16N(configure)# management gateway 192.168.2.1
LTP-16N(configure)# management vid 3470
LTP-16N(configure)# exit

New network settings will be applied after applying/saving the configuration with the commit,
save commands without rebooting the device:

Apply the configuration:
LTP-16N# commit

Save the configuration:
LTP-16N# save
If VLAN will be used for control (in this example, VID=3470), add it to the configuration:
Enter the configuration mode:
LTP-16N# configure terminal

Receive the traffic in VLAN from front-port 1:
LTP-16N(configure)# interface front-port 1
LTP-16N(configure)# vlan allow 3470
LTP-16N(configure)# exit
Apply the configuration:
LTP-16N# commit

Save the configuration:
LTP-16N# save

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5 OLT LTP-16N firmware update
For proper operation of LTP-16N, it is recommended to update the firmware. Consult the vendor on the
relevance of the firmware version.
Upload the firmware file to the TFTP server (as an example, firmware version 1.3.0 build 246).
Next, upload this file to LTP-16N using the following command:
Specify firmware file name and TFTP server address:

LTP-16N# copy tftp://192.168.11.40/ltp-16n-1.3.0-build246.fw.bin fs://firmware
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 73.1M 100 73.1M 0 0 3663k 0 0:00:20 0:00:20 --:--:-- 3666k
100 73.1M 100 73.1M 0 0 3663k 0 0:00:20 0:00:20 --:--:-- 3663k
Success!
LTP-16N#
Reboot the device using the reboot command:
Change the image, from which the next boot will be made:

LTP-16N# firmware select alternate

Reboot the device:

LTP-16N# reboot
Do you really want to reboot the system now? (y/n) y
After LTP-16N loading, the firmware version can be found by the show version command:
LTP-16N# show version
Eltex LTP-16N: software version 1.3.0 build 246 on 17.08.2021 13:20

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6 SNMP, SYSLOG, NTP services configuration
6.1 SNMP configuration
SNMP is used for monitoring and management of network devices.
Enter the configuration mode:
LTP-16N# configure terminal

Enable SNMP:
LTP-16N(configure)# ip snmp enable:
Specify version v2 and EMS server address:
LTP-16N(configure)# ip snmp traps 192.168.10.43 type v2

Apply configuration:
LTP-16N(configure)# do commit

Save configuration:
LTP-16N(configure)# do save
6.2 SYSLOG configuration
Syslog is used for transmission of system event messages and error notifications to remote servers.
Enter the configuration mode:
LTP-16N# configure terminal

Enter the logging configuration:
LTP-16N(configure)# logging

Specify syslog server address:
LTP-16N(config)(logging)# remote server ip 192.168.11.40


Apply configuration:
LTP-16N(config)(logging)# do commit

Save configuration:
LTP-16N(config)(logging)# do save

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6.3 NTP configuration
NTP is used to synchronize the time of a network device with a server.
Enter the configuration mode:
LTP-16N# configure terminal

Enable NTP service:
LTP-16N(configure)# ip ntp enable
Specify NTP server address:
LTP-16N(configure)# ip ntp 192.168.10.43

Specify timezone:
LTP-16N(configure)# ip ntp timezone hours 7

Apply configuration:
LTP-16N(configure)# do commit

Save configuration:
LTP-16N(configure)# do save

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7 VLAN configuration
Configuration mode:
LTP-16N# configure

Receive traffic from front-port 1 to VLAN:
LTP-16N(configure)# interface front-port 1
Add all the necessary VLANs:
LTP-16N(config)(if-front-1)# vlan allow 1101,1200,30,4094,1100,2349
Apply configuration:
LTP-16N(configure)# do commit

Save configuration:
LTP-16N(configure)# do save
If the configuration is not saved, then after reboot, the device will return to the last saved configuration.
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8 IGMP configuration
Enable IGMP SNOOPING globally:
LTP-16N(configure)# ip igmp snooping enable

VLAN 30 configuration mode:
LTP-16N(configure)# vlan 30

Enable IGMP SNOOPING in VLAN multicast:
LTP-16N(config)(vlan-30)# ip igmp snooping enable

Enable IGMP query:
LTP-16N(config)(vlan-30)# ip igmp snooping querier enable

Apply configuration:
LTP-16N(configure)# do commit
LTP-16N(configure)# exit
LTP-16N# exit

Save configuration:
LTP-16N# save

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9 CROSS-CONNECT, MANAGEMENT, PORTS profiles configuration for ONT
Enter the configuration mode:
LTP-16N# configure terminal

Create and enter a Cross-Connect profile for the ONT Internet service:
LTP-16N(configure)# profile cross-connect INTERNET
LTP-16N(config)(profile-cross-connect-INTERNET)#

Specify the service VLAN of the Internet service:
LTP-16N(config)(profile-cross-connect-INTERNET)# outer vid 1100

Specify inner VLAN of Internet service on ONT:
LTP-16N(config)(profile-cross-connect-INTERNET)# user vid 10
LTP-16N(config)(profile-cross-connect-INTERNET)# exit

Create and enter a Cross-Connect profile for the ONT SIP VoIP service:
LTP-16N(configure)# profile cross-connect VOIP

Specify the service VLAN of the VoIP service:
LTP-16N(config)(profile-cross-connect-VOIP)# outer vid 1101

Specify inner VLAN of VoIP service on ONT:
LTP-16N(config)(profile-cross-connect-VOIP)# user vid 12
LTP-16N(config)(profile-cross-connect-VOIP)# exit

Create and enter a Cross-Connect profile for the multicast service:
LTP-16N(configure)# profile cross-connect MC_IPTV

Specify the service VLAN of the multicast service:
LTP-16N(config)(profile-cross-connect-MC_IPTV)# outer vid 30

Specify inner VLAN of multicast service on ONT:
LTP-16N(config)(profile-cross-connect-MC_IPTV)# user vid 30

Allow multicasting in this service:
LTP-16N(config)(profile-cross-connect-MC_IPTV)# multicast enable
LTP-16N(config)(profile-cross-connect-MC_IPTV)# exit

Create and enter a Cross-Connect profile for the ONT UC_IPTV service:
LTP-16N(configure)# profile cross-connect UC_IPTV

Specify the service VLAN of the STB unicast service:
LTP-16N(config)(profile-cross-connect-UC_IPTV)# outer vid 2349

Specify inner VLAN of STB unicast service on ONT:
LTP-16N(config)(profile-cross-connect-UC_IPTV)# user vid 11
LTP-16N(config)(profile-cross-connect-UC_IPTV)# exit

Create and enter a Cross-Connect profile for the management ONT service:
LTP-16N(configure)# profile cross-connect ACS

Specify service VLAN for management service:
LTP-16N(config)(profile-cross-connect-ACS)# outer vid 4094

Enable iphost for ACS:
LTP-16N(config)(profile-cross-connect-ACS)# iphost enable
LTP-16N(config)(profile-cross-connect-ACS)# exit

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
Create and enter a Management profile:
LTP-16N(configure)# profile management ACS

Specify login for authorization in ACS:
LTP-16N(config)(profile-management-ACS)# username test

Specify password for authorization in ACS:
LTP-16N(config)(profile-management-ACS)# password test_pass

Specify server address:
LTP-16N(config)(profile-management-ACS)# url http://192.168.100.100

Create and switch to multicast profile:
LTP-16N(configure)# profile ports veip

Enable multicast on ONT:
LTP-16N(config)(profile-ports-veip)# veip multicast enable

Configuration of IGMP traffic mapping in 30th VLAN in downstream:
LTP-16N(config)(profile-ports-veip)# veip igmp downstream vid 30

Configuration of IGMP traffic mapping in 30th VLAN:
LTP-16N(config)(profile-ports-veip)# veip igmp upstream vid 30

Configuration of the multicast groups range:
LTP-16N(config)(profile-ports-veip)# igmp multicast dynamic-entry 1 vid 30 group 224.0.0.1
239.255.255.255

Apply configuration:
LTP-16N(config)(profile-ports-veip)# do commit
Configuration committed successfully

Save configuration:
LTP-16N(config)(profile-ports-veip)# do save
If the configuration is not saved, then after reboot, the device will return to the last saved configuration.
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10 OLT profiles configuration: PPPoE Intermedia Agent, DHCP Relay Agent
10.1 PPPoE Intermedia Agent configuration
Enter the configuration mode:
LTP-16N# configure terminal

Add and enter profile configuration:
LTP-16N(configure)# profile pppoe-ia 1
Configure circuit_id format:
LTP-16N(config)(profile-pppoe-ia-1)# circuit-id format %HOSTNAME%%ONTID%

Configure remote_id format:
LTP-16N(config)(profile-pppoe-ia-1)# remote-id format %HOSTNAME%%ONTID%

Apply configuration:
LTP-16N(config)(profile-pppoe-ia-1)# do commit

Save configuration:
LTP-16N(config)(profile-pppoe-ia-1)# do save

Enable PPPoE snooping:
LTP-16N(config)(profile-pppoe-ia-1)# exit
LTP-16N(configure)# ip pppoe
LTP-16N(config)(pppoe)# snooping enable
Assign pppoe-ia 1 profile on OLT:
LTP-16N(config)(pppoe)# pppoe-ia profile 1

Apply configuration:
LTP-16N(configure)# do commit

Save configuration:
LTP-16N(configure)# do save
Reconfiguration is performed by the command:
LTP-16N# reconfigure olt

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10.2 DHCP Relay Agent configuration
Enter the configuration mode:
LTP-16N# configure terminal

Create profile and enter configuration:
LTP-16N(configure)# profile dhcp-opt82 1

Transmit HOSTNAME LTP-16N and id ONT in data about the port from which the request to the DHCP
relay came:
LTP-16N(config)(profile-dhcp-opt82-1)# circuit-id format %HOSTNAME%%ONTID%

Transmit HOSTNAME LTP-16N and id ONT in the ID of the DHCP relay itself:
LTP-16N(config)(profile-dhcp-opt82-1)# remote-id format %HOSTNAME%%ONTID%

Enable DHCP snooping:
LTP-16N(config)(profile-dhcp-opt82-1) exit
LTP-16N(config)(dhcp)# snooping enable

Assign created profile:
LTP-16N(config)(dhcp)# opt82 profile 1

Apply configuration:
LTP-16N(config)(dhcp)# do commit

Save configuration:
LTP-16N(config)(dhcp)# do save