Although every precaution has been taken in the preparation of this document,
DATACOM takes no responsibility for possible errors or omissions, and it will
accept no obligation for damages resulting from the use of the information contained in this manual. The specifications provided in this manual are subject to
changes without notice, and they will not be recognized as any kind of contract.
Any quotes in this document are property of their respective third party owners
and come without warranty.
c
2015 DATACOM - All rights reserved.
DATACOM
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DM984 product familyCHAPTER 3. WARRANTY
3.Warranty
This product is warranted against material and workmanship defects for the period specified in the sales invoice. The warranty only includes the repair and
replacement of defective components and parts without any resulting burden to
the customer. Defects resulting from the following are not covered: improper
use of device, faulty electrical power network, nature-related events (lightning
discharges, for instance), failure in devices connected to this product, installations with improper grounding or repairs made by personnel not authorized by
DATACOM. This warranty does not cover repairs at the customer’s facilities.
Equipment must be forwarded for repairs to DATACOM.
DATACOM
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DM984 product familyCHAPTER 4. ACRONYMS
4.Acronyms and declarations
ANI-G (Access Node Interface-GPON)
CLI (Command Line Interface) – User Interface where commands are issued in
form of text. In the context of this manual this term is referring to the IPSAN’s
Command Line Interface unless specified otherwise.
CTP (Connection Termination Point)
DBA (Dynamic Bandwidth Allocation) - standardized mechanism for bandwidth
management
DFB (Distributed Feedback Laser)
DTMF (Dual-tone multi-frequency)
FEC (Forward Error Correction)
FTTB/C (Fiber-to-the-Building/Curb) – Common GPON architecture where the
service is provided for one or more buildings
FTTCab (Fiber-to-the-Cabinet) – Common GPON architecture which is similar to FTTB/C but the actual end of the GPON network is considered to be
nearer at the service provider
FTTH (Fiber-to-the-Home) – Common GPON architecture where the service
is provided for a single customer
GEM-Port (GPON encapsulation method port) – Used to differentiate between
data inside of a T-CONT
GPON (Gigabit-capable Passive Optical Network) – refer to Introduction into
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DM984 product familyCHAPTER 4. ACRONYMS
GPON for further information
IPSAN (IP Multiservice Access Platform) – DM4600 Product Line including support for GPON and many other Services
ITP (Interworking Termintation Point)
MAC (Media Access Control)
ME (Managed Entity) – Specific part of a configuration that is present on the
ONU. A managed entity is configured by one or more OMCI messages.
ODN (Optical Distribution Network) – physical network connecting OLT and
ONU
OFE (Optical Fiber Enclosure) - Underside Enclosure where the fiber is stored
OLT (Optical Line Termination) – Formal declaration of a configuring hardware/software in a GPON network
OMCI (Optical network unit Management and Control Interface) – Used by the
OLT to configure the ONU and watch its behaviour
ONT (Optical Network Termination) – see ONU
1
ONU (Optical Network Unit) – Formal declaration of the user node hardware/software in a GPON network that will be configured by an OLT
PPTP (Physical Path Termination Point) - for example an Ethernet interface
QoS (Quality of Service) – Queuing protocol for preferential data handling
SFP (Small form-factor pluggable) – Used to enable different types of physical connections depending on the customer needs
SNI (Service Node Interface) – Interfaces at the OLT used by the service provider
to deliver the data to a user
1
ONU and ONT is often considered to be the same. This practice is followed in this
manual. However, there is a difference between ONU and ONT, as ONT describes only the
GPON part of a user device. To avoid confusion between the terms or with the acronym OLT
the device is called ONU further on.
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DM984 product familyCHAPTER 4. ACRONYMS
T-CONT (Transmission Containers) – Used for assignments of specific services
(e.g. different bandwidths)
UNI (User Network Interface) – Interfaces at the ONU used by a user to access the GPON network
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DM984 product familyCHAPTER 5. ABOUT
5.About this Manual
This manual is supposed to help network administrators to provision the DM984
family for use in a GPON network. It also aims to help with administration of
GPON networks considering different OLTs, while the focus is on the DM4650
(IPSAN - IP Multiservice Access Platform). Further it features full example configurations for the IPSAN as well as common scenarios which are described as
configuration guides. Please be advised that this manual is not supposed to be
an administration guide to the IPSAN. However, for a full guide to all of the
GPON features of the IPSAN as well as other functionalities please refer to the
dedicated IPSAN’s User Manual.[1]
In order to use this manual, fundamental knowledge about network processes
is mandatory.
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DM984 product familyCHAPTER 6. DM984-100B AT A GLANCE
6.DM984-100B at a Glance
The DM984-100B GPON ONU (optical network unit) family offers access solution for high speed fiber optic. It delivers triple-play services for business and
residential users. The Ethernet data is transported transparently by the GPON
link and delivered to a unit line termination (OLT, Optical Line Termination),
like the DM4610 OLT and the DM4600 – 8-GPON, a GPON interface board for
DATACOM’s DM4600 – IPSAN family.
DATACOM
Figure 6.1: DM984
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DM984 product familyCHAPTER 6. DM984-100B AT A GLANCE
6.1 LEDs
6.1.1 Overview
Figure 6.2: LED view of DM984
6.1.2 Descriptions
POWER
BehaviorEvent
Constant greenONU is powered on
Constant offONU is powered off
ALARM
Not in use on this product model.
PON
BehaviorEvent
Constant greenConnection to OLT established
Constant offNo connection to OLT
ETH1
BehaviorEvent
Constant greenConnected but no Ethernet traffic
Constant offNo Ethernet connection
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DM984 product familyCHAPTER 6. DM984-100B AT A GLANCE
Green blinkingUnder Ethernet traffic
ETH2
Not in use on this product model.
ETH3
Not in use on this product model.
ETH4
Not in use on this product model.
TEL
Not in use on this product model.
WIFI
Not in use on this product model.
6.2 Backside Description
Figure 6.3: Backside of DM984-100
6.2.1 RESET-Button
Not in use on this product model.
6.2.2 WPS-Button
Not in use on this product model.
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DM984 product familyCHAPTER 6. DM984-100B AT A GLANCE
6.3 Specifications
The DM984 GPON ONU is an optical network terminal that offers one Gigabit
Ethernet LAN interface and an integrated OFE (optional).
It has the ability to add, remove and modify VLANs, supports multicast traffic (e.g. video transport) and has QoS functionality.
6.3.1 Power supply
The DM984 uses an external power source with the following characteristics.
• Input: 100Vac to 240Vac Full Range (automatic selection), 50Hz to 60Hz
• Output: 12Vdc 500mA
• Device consumption: <4W
Attention: Use only the power supply shipped with the DM984-100B. The
device may experience severe damage if another power supply is used.
6.3.2 Dimensions
• The DM984 GPON ONU is presented in a desktop enclosure
– With integrated OFE, it measures 190mm in width, 160mm in depth
and 46mm in height, including its rubber feet.
– Without integrated OFE, it measures 180mm in width, 160mm in
depth and 36mm in height.
6.3.3 Management
• Uses OMCI protocol for management, according to ITU-T G.988[4]
• Allows remote firmware upgrade;
• Allows storage of two firmware images with software integrity check and
possible rollback
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DM984 product familyCHAPTER 6. DM984-100B AT A GLANCE
6.3.4 Operating Conditions
• Operating Temperature: 0◦C to 45◦C
• Operating Humidity: 5% - 95% non-condensing
6.3.5 Features
GPON Interface (WAN)
• Compliant with ITU-T G.984[3]
• Connector SC/APC
• Supports burst mode of 1.244 Gbit/s Upstream
• Supports burst mode of 2.488 Gbit/s Downstream
• Performance Monitoring
• DFB Laser, according to ITU-T G.984.2[2] AMD1
– Average optical transmit power: Between +0.5 dBm and +5 dBm
– Receive Sensitivity: At least -27 dBm
– Overload reception:-8 dBm
(Signal should not be higher than -8dBm otherwise it will not work
properly)
• Wavelengths:
– Upstream: 1310 nm
– Downstream: 1490 nm
• Laser Class I
• Dying Gasp
• Up to 8 T-CONTs and 32 GEM ports possible
• VLAN or VLAN plus 802.1p mapping to GEM ports
• Upstream SP, WRR, SP+WRR scheduling
• Flexible mapping between GEM Ports and T-CONTs
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DM984 product familyCHAPTER 6. DM984-100B AT A GLANCE
• Activation by automatic discovery of serial number and password as ITU-T
G.984.3[5]
• AES-128 downstream decryption
• DBA (DBRU)
• Bidirectional FEC (Forward Error Correction)
• VLAN plus 802.1p QoS for dropping un-allowed p-bits
• VLAN plus 802.1p Rate limiting
Gigabit Ethernet Interface (LAN)
• RJ45 Connectors
• 10/100/1000 Base-T interfaces
• Auto negotiation or manual configuration
• MDI / MDIX
• Bridging (802.1D)
Virtual Bridge
• Adding or removing VLAN tags
• VLAN stacking (QinQ) and VLAN translation
• Classes of service based on ports, VLAN ID, 802.1p or a combination
• Jumbo frames up to 9kB
• MAC learning
• VLANs 1-4094
• Rate limiting per VLAN and 802.1p combination
Broadcast and Multicast
• IGMPv2/v3 snooping
• Broadcast and multicast rate limit
• 50 multicast groups
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DM984 product familyCHAPTER 6. DM984-100B AT A GLANCE
Management and Configuration
• Advanced PLOAM functions
• OMCI
• Firmware image uploads through OMCI according to G.988[4]
• Dual image
• Remote reboot
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DM984 product familyCHAPTER 7. INTRODUCTION
7.Introduction into GPON
The main characteristics of Passive Optical Networks (PON) is that there are no
electrical components in use for signal distribution. This architecture is mainly
used as a solution for access to the last mile, leading optical fiber cabling and
signals nearest to end user. A PON system has the ability to deliver high speed
rates for broadband access.
The first PON was based on ATM (called APON, now renamed to broadband
or BPON) and it has evolved to today’s dominants Gigabit PON (GPON) and
Ethernet PON (EPON). All of these optical technologies create split multi-site
connection paths, they are built using a similar topology, and components like
shown by Figure 7.1.
Figure 7.1: Possible Topology for GPON
7.1 Physical Specifications
GPON is a technology used to realize FTTx (e.g. Fiber-to-the-Home) architectures (See Figure 7.2). A network that uses GPON technology basically consists
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DM984 product familyCHAPTER 7. INTRODUCTION
of two main parts, the OLT and one or more ONUs. In general, all operations
to provision a GPON are issued at the OLT and sent via OMCI messages to the
ONU. An ODN connects the OLT and the ONUs.
As defined in the ITU-T G.984.1 standard[3] GPON devices are capable of processing traffic up to 2.488 Gbit/s in downstream and 1.244 Gbit/s in upstream
direction.
The physical reach is the maximum physical distance between the ONU/ONT
and the OLT. In GPON, two options are defined for the physical reach: 10 km
and 20 km. It is assumed that 10 km is the maximum distance over which FP-LD
can be used. However, this ONU uses a DFB laser diode, so it is able to operate
at a maximum distance of 20 km.
Figure 7.2: GPON Architectures[3]
7.2 Transmission Containers (T-CONTs)
A transmission container or T-CONT is a group of logical connections. For one
ONU there are multiple T-CONTs possible. The number of supported T-CONTs
depends on the ONU software. One T-CONT has a specific bandwidth allocation.
Each T-CONT is supposed to provide different services.
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DM984 product familyCHAPTER 7. INTRODUCTION
7.3 GPON encapsulation method port (GEM-Port)
GEM is a data frame transport scheme used in GPON systems which is connectionoriented and supports fragmentation of user data frames into variable-sized transmission fragments. One or more GEM-Ports on the other hand are a logical
gateways for specific user data flows that are assigned to a specific T-CONT. So
it is possible to differentiate between user data within the same service that is
represented by a T-CONT.
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DM984 product familyCHAPTER 8. PHYSICAL SETUP
8.Physical Setup
8.1 Overview
To achieve any GPON setup described in this manual it is assumed that there is
an OLT, which configures the ONU. According to ITU-T G.984.1[3] it is intended
to have a passive fiber connection between the OLT and the ONU. It may include
optical splitters as well as other passive network components. In a typical FTTH
scenario the ONU is connected to the OLT via the ODN and the customer
may connect it to his local network. The OLT must also be connected to the
service providers’ network. The setup may vary for different scenarios. For an
introduction into GPON please refer to the chapter Introduction into GPON.
Additionally refer to the manual of the OLT vendor to be sure the ONU is
connected correctly.
8.2 IP Multiservice Access Platform (IPSAN)
In case of using the IPSAN as OLT, there is a dedicated GPON card installed
which is used to connect the ONU via the ODN to a GPON interface at the
GPON card of the IPSAN. Such a GPON interface is also called ponlink in
short which will be the convention in this document. In addition to the ONU
connections, the IPSAN needs at least one more connection, which acts as uplink
to the service providers’ network. Depending on the customers needs, it is also
possible to define more than one uplink. Each of the connections to the IPSAN
may need a specific SFP to connect the cables to the interfaces. The setup for
the scenario with FTTH described above remains the same. Note that the IPSAN
is not only an OLT and may be used for other purposes too. For a full guide to
all of the supported GPON features, as well as other functionalities please refer
to the dedicated IPSAN’s User Manual.[1]
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DM984 product familyCHAPTER 9. OPERATION WITH OLTS FROM OTHER VENDORS
9.Operation with OLTs from other
vendors
9.1 Registration and Configuration
There are two values that are used by the OLT to identify the ONU. The ONU
has a unique serial number and a password. While the password is changeable,
the serial number is not. With these two values the ONU can be registered in 3
different ways.
It can be registered using only the serial number, only the password or the two in
combination. From now on all the work is done on the OLT’s configuration interface. Please refer to the manual of the OLT vendor to ensure proper registration
of the ONU.
9.2 Checking the Firmware version
It is possible to check the firmware version from an OLT’s user interface remotely,
as the ONU is sending its firmware information to the OLT. Please refer to the
manual of the OLT vendor on how check the firmware version with your OLT.
9.3 Upgrading the Firmware
Following the ITU-T G.988[4] the upgrade of the firmware version (also called
software download) is only performed by the OLT. Please refer to the manual of
the OLT vendor to ensure proper upgrade of the firmware.
For a smooth operation of the ONU, please check for firmware updates on a
regular basis and keep the version up to date.
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DM984 product familyCHAPTER 10. FIRST STEPS WITH IPSAN
10.First Steps with IPSAN
It is possible to connect to the configuration CLI (command line interface)
through serial cables, telnet and SSH. Initially the IPSAN is accessible via the
serial interface only. For security reasons it is recommended to use SSH for any
configuration. The necessary steps to configure SSH are defined in the section
10.1 Initial Connection
The first connection is possible only through the serial interface of the IPSAN. For
this purpose a terminal emulation program, such as Hyperterminal, TeraTerm,
PuTTY or similar is needed. The emulation program needs to be configured like
this:
When accessing the CLI a prompt for username should be visible:
DM4650 login:
After that a prompt for the password is shown:
password:
The default values for these are:
Username: admin
Password: admin
After login it is highly recommended to change the password of the admin user.
The password can be changed when using the command passwd.
The following example shows the password changing procedure:
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DM984 product familyCHAPTER 10. FIRST STEPS WITH IPSAN
DM4650#passwd
Type Old Password
password:
Type New Password
password:
Confirm Password
password:
Password changed sucessfully.
DM4650#
For a guide on how to create more users besides the admin user please refer to
the IPSAN’s User Manual.[1]
10.2 Working with the CLI
To achieve any configuration on the IPSAN it is necessary to go into the so called
configuration menu by typing:
configure
Example:
DM4650#configure
DM4650(config)#
The builtin help can be accessed by pressing ’?’ or issuing the command help.
This is possible at any time when at the IPSAN’s prompt.
The IPSAN supports auto-completion. Based on the example above it is possible
to just type conf and confirm the command with ENTER or complete the command automatically by pressing TAB. This is possible with all commands when
at the IPSAN’s prompt.
Example:
DM4650#conf
DM4650(config)#
When a menu is active, more information about the menu is available by issuing
the following command:
show this
Note:In some menus it isn’t possible to do that, e.g. the configuration menu.
Example:
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DM984 product familyCHAPTER 10. FIRST STEPS WITH IPSAN
There are two options for saving configurations to the persistent flash storage
of the IPSAN. The first option is in combination with marking it as startupconfiguration and the second option is without marking it as startup configuration. When a configuration is marked as startup-configuration it gets loaded
upon the next startup of the IPSAN.
To save a configuration and mark it for the next startup the following command
must be issued: