Cisco Catalyst PON Series Handbuch
Cisco Catalyst PON Series Switches Hardware Installation Guide
First Published: 2020-11-08
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CONTENTS
Introduction to the Passive Optical Network 1
CHAPTER 1
Cisco Catalyst PON Series OLT Overview 2
Cisco Catalyst PON Series OLT Models 2
Front Panel 3
Rear Panel 4
Ports 4
Power Supply 5
LEDs 6
Cisco Catalyst PON Series ONT Overview 7
Cisco Catalyst PON Series ONT Models 8
Front Panel 8
Rear Panel 9
Ports 9
LEDs 10
Lock Slot 10
Cisco Catalyst PON Manager Overview 11
Installation 13
CHAPTER 2
Safety Warnings 13
Box Contents 16
Installation Guidelines 17
Installing an OLT 18
Mounting the OLT on a Table or Shelf 18
Attaching the Rack-Mounting Bracket and Mounting a OLT on a Rack 18
Installing SFP or SFP+ Modules 19
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Installing an SFP or SFP+ Module 20
Removing an SFP or SFP+ Module 20
Establishing the System Ground 21
Required Tools and Equipment 21
Connecting the System Ground 22
Connecting to the Power Source 23
Connecting to an AC Power Source 23
Connecting to a DC Power Source 24
Setting Up the OLT 25
Installing an ONT 26
Placing the ONT on a Table or Shelf 26
Installing the ONT on a Wall 26
Attaching the Rack-Mounting Bracket and Mounting an ONT on a Rack 27
Connecting to an AC Power Source 28
Setting Up an ONT 29
Installing the Cisco Catalyst PON Manager 29
Setting Up the Cisco Catalyst PON Manager 33
Starting the PON Manager Server 33
Creating a New User in the PON Manager Client 34
Removing and Replacing Field-Replaceable Units (FRUs) 39
CHAPTER 3
Removing and Replacing the Fan Module 39
Installation Guidelines 39
Removing the Fan Module 39
Installing a Fan Module 41
Removing and Replacing the Power Supply Module 41
Installation Guidelines 42
Removing and Installing Power Supply Blank Cover 43
Removing a Power Supply Blank Cover 43
Installing a Power Supply Blank Cover 43
Removing a Power Supply Module from an OLT 43
Inserting the Power Supply Module in an OLT 46
Troubleshooting 49
CHAPTER 4
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Troubleshooting Common Issues 49
Bad or Damaged Cable 49
Ethernet and Fiber-Optic Cables 49
Link Status 50
10/100/1000 PoE+ Port Connections 50
Cisco Catalyst PON Series OLT Troubleshooting 50
SFP and SFP+ Module 50
Fan Module 51
Power Supply Module 51
Interface Indicator 51
Finding a Cisco Catalyst PON OLT Serial Number 51
Cisco Catalyst PON Series ONT Troubleshooting 52
Finding the Cisco Catalyst PON ONT Serial Number 52
Technical Specifications 53
APPENDIX A
Cisco Catalyst PON Series OLT Technical Specifications 53
Physical Specifications 53
Environmental Specifications 53
Power Requirements 54
Cisco Catalyst PON Series ONT Technical Specifications 54
Physical Specifications 54
Environmental Specifications 54
Power Requirements 55
Connector and Cable Specifications 57
APPENDIX B
Connector Specifications 57
10/100/1000 Ports (Including PoE) 57
SFP Module Connectors 57
Cables and Adapters 58
Transceiver Module Network Cables 58
Cable Pinouts 59
Console Port Adapter Pinouts 60
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Contents
CHAPTER 1
Introduction to the Passive Optical Network
A passive optical network (PON) or Gigabit Passive Optical Network (GPON) is a point-to-multipoint (P2MP)
network that uses a combination of active transmission equipments and passive cable components to provide
network connectivity to end user's devices. This network is suitable for building access networks such as
fiber-to-the-home (FTTH), or fiber-to-the-office (FTTO), or fiber-to-the-company (FTTC) for providing
internet access by running fiber optic cable directly from an internet service provider to a user's home or
business. The PON technology is based on the ITU-T G.984 standard.
PON transmits Ethernet, Asynchronous Transfer Mode (ATM), and Time Division Multiplexing (TDM)
traffic. It consists of mainly two active transmission equipments, Optical Line Terminal (OLT) and Optical
Network Terminal (ONT). One of the main characteristics of PON is the use of passive optical splitters in the
fiber distribution network, enabling a single feeding fiber from the service provider’s central office to serve
multiple homes and small businesses.
The network path between the terminals is known as Optical Device Network (ODN), which comprises passive
optical components, such as optical fibers and passive optical splitters. The ODN provides optical channels
that interconnect the OLT to the ONTs. The optical fiber cables cover a distance of 20km to 30km.
A single optical fiber from the OLT connects to a passive optical splitter that is located near an end user's
premises. The optical splitter divides optical power into nseparate paths to end user. The number of optical
paths can vary from 2 to 128. From the optical splitter, a single-mode fiber strand is connected to each end
user's devices. Data is broadcast in the downstream direction and transmitted in the TDMA mode based on
timeslots in the upstream direction.
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Figure 1: Front Panel of a CGP-OLT-8T
The data, voice, and video signals of an end-user devices are sent to ONTs. The signals are converted into
Ethernet packets and then transmitted over optical fibers to the OLT using the PON uplink ports on the ONTs.
Ethernet packets are forwarded to the upper-layer IP network using the uplink port on the OLT.
For more information, see the following sections:
•Cisco Catalyst PON Series OLT Overview, on page 2
•Cisco Catalyst PON Series ONT Overview, on page 7
•Cisco Catalyst PON Manager Overview, on page 11
Cisco Catalyst PON Series OLT Overview
The Cisco Catalyst PON Series OLT is an aggregation device that is located at a service provider's central
office of the PON network. The main functions of a Cisco Catalyst PON Series OLT are traffic scheduling,
buffer control, and bandwidth allocation. The Cisco Catalyst PON Series OLT manages the network traffic
that is in the form of video, data, and voice signals in a PON network, and sends them downstream to the
Cisco Catalyst PON Series ONTs on the network. The Cisco Catalyst PON Series OLT also receives the
signals from the Cisco Catalyst PON Series ONTs located at an end user's premises and sends them to their
destination over the internet.
A Cisco Catalyst PON Series OLT can support up to 128 Cisco Catalyst PON Series ONTs per port. A Cisco
Catalyst PON Series OLT provides 8/16xPON ports, 4xG combo ports and 2x10G small form-factor pluggable
(SFP+) ports for uplink. A Cisco Catalyst PON Series OLT carries abundant services and flexible network
mode over one optical network, and is especially suitable for networks such as enterprise LAN, video
application, and high-speed internet.
Cisco Catalyst PON Series OLT Models
The following table lists the Cisco Catalyst PON Series OLT models and their description.
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Introduction to the Passive Optical Network
Cisco Catalyst PON Series OLT Overview
Table 1: Cisco Catalyst PON Series OLT Models and Description
DescriptionModel
Cisco Catalyst PON Series OLT with 8xPON port, 4x1 G combo port, and 2x10 G
SFP+ module uplink slot.
CGP-OLT-8T
Cisco Catalyst PON Series OLT with 16xPON port, 4x1 G combo port, and 2x10
G SFP+ module uplink slot.
CGP-OLT-16T
Front Panel
This section describes the front-panel components of Cisco Catalyst PON Series OLT.
Figure 2: Front Panel of CGP-OLT-8T
System LEDs7PON ports1
Auxiliary port81 G combo ports2
Reserve alarm port910 G SFP+ ports3
Port LEDs10Reserve alarm port4
Grounding connector11Console port5
Power modules12Fan module6
Figure 3: Front Panel of CGP-OLT-16T
10 G SFP+ port5System LEDs1
Auxiliary port6Console port2
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Introduction to the Passive Optical Network
Front Panel
Port LEDs7PON ports3
--1 G combo ports4
Rear Panel
This section describes the rear-panel components of CGP-OLT-16T:
Figure 4: Rear Panel of CGP-OLT-16T
Grounding connector2AC or DC power connector1
Ports
PON Ports
The PON ports use multi-source agreement (MSA) type UPC or SC-PC fiber connector. The PON ports
support a bandwidth of 2.466 Gbps downstream and 1.244 Gbps upstream.
Console Port
The console port connects the Cisco Catalyst PON Series OLT to a PC running Microsoft Windows or to a
terminal server and uses the RJ-45 crossover cable. The RJ-45 console port connection uses the supplied
RJ-45-to-DB-9 female cable.
Auxiliary Port
The auxiliary port connects the Cisco Catalyst PON Series OLT to a host such as a Windows workstation or
a terminal server through the auxiliary port. The auxiliary out-of-band management port is a virtual routing
and forwarding (VRF) interface and uses an RJ-45 crossover cable.
1 G Combo Ports
A combo port is a combination of an SFP interface and an RJ-45 port. When the SFP interface is active, the
adjacent RJ-45 port is disabled. The 1 G ports use LC connectors for fiber-optic connections and RJ-45
connectors for copper connections.
10 G SFP+ Ports
The 10 G ports use LC connector cables for fiber-optic connections and RJ-45 connector cables for copper
connections. The SFP slots support only SFP+ modules. These SFP+ modules are field replaceable, and
provide uplink interfaces when installed in an SFP+ module slot.
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Introduction to the Passive Optical Network
Rear Panel
For more information on compatible Cisco SFP+ modules, see the Cisco Catalyst PON Series Switches Release
Notes.
Reserve Alarm Port
The reserve alarm port connects to external monitoring systems such as the Environment Monitor System.
This functionality is currently disabled.
Note
Power Supply
The Cisco Catalyst PON Series OLT chassis has redundant power supply slots that operate with one or two
power supply modules. The chassis supports field-replaceable AC-input and DC-input power supply modules.
Hybrid power supply plugs are not supported.
Note
AC Power Supply
The following table lists the power supply ratings.
Output Power (Watts)Input Voltage (VAC)
100220
100110
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Introduction to the Passive Optical Network
Power Supply
DC Power Supply
The following table lists the power supply ratings.
Output Power (Watts)Input Voltage (VAC)
100-36 to -72VDC (with extended range upto -75VDC)
Voltage differential between inputs is unlimited.
LEDs
You can use LEDs to monitor the activity and performance of Cisco Catalyst PON Series OLT.
Table 2: System LEDs
IndicationColorLED
Normal power from power supplyGreen (solid)PWR1 and PWR2
No power from power supplyOFF
OLT is running normally
Green (blinking)RUN
OLT is not running
or
OLT is running abnormally
OFF
or
Green (solid)
Auxiliary port is not connected
OFFAUX
Auxiliary port is connected, but not
transmitting data
Green (solid)
Auxiliary port is connected and is
transmitting data
Green (blinking)
Power supply is normal
Green (solid)OUT
No power supplyOFF
Cisco Catalyst PON Series Switches Hardware Installation Guide
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Introduction to the Passive Optical Network
LEDs
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