Positron GAM-4-CRX Manual de usuario
G.hn Access Multiplexer (GAM)
Quick Installation Guide
GAM-4-CRX / GAM-4-CX
GAM Quick Installation Guide
Positron Access Solutions 2 Document 180-0212-001 R02
Publication Information
©2021 Positron Access Solutions
GAM (G.hn Access Multiplexer) GAM-4-CRX / GAM-4-CX
Quick Installation Guide
Publication date: Updated November 2021
Printed in Canada
Published By
Positron Access Solutions
5101 Buchan Street, Suite 220
Montreal, Quebec, Canada
H4P 2R9
Telephone US and Canada: 1-888-577-5254
International: +1-514-345-2220
Product names, other than Positron's, mentioned herein may be trademarks and/or registered trademarks
their respective companies.
Disclaimer Notice
Although Positron Access Solutions has made every effort to ensure the accuracy of the information
contained herein, this document is subject to change.
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CONTENTS
Chapter 1.........................................................................................................................................5
About the GAM...............................................................................................................................5
1.1 Introduction........................................................................................................................6
1.2 GAM Connections.............................................................................................................6
1.2.1 Power Connection........................................................................................................6
1.2.2 Ethernet (SFP+) Port ...................................................................................................7
1.2.3 G.hn Ports....................................................................................................................8
1.2.4 Local management ports .............................................................................................8
1.2.5 GAM LED Indicators ....................................................................................................9
1.2.6 GAM Reset Button.....................................................................................................11
Chapter 2.......................................................................................................................................12
Step by Step Installation .............................................................................................................12
2.1 Step by Step Installation Procedure................................................................................13
Chapter 3.......................................................................................................................................19
WEB Management........................................................................................................................19
3.1 Introduction......................................................................................................................20
3.2 System Management ......................................................................................................20
3.2.1 Logging into the WEB GUI.........................................................................................20
3.2.2 System.......................................................................................................................21
3.2.3 General Information ...................................................................................................21
Chapter 4.......................................................................................................................................22
Technical Specifications .............................................................................................................22
4.1 GAM Technical Specifications ........................................................................................23
Chapter 4.......................................................................................................................................27
Safety and Warnings....................................................................................................................27
Chapter 5.......................................................................................................................................30
Warranty and Customer Service ................................................................................................30
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List of Figures
FIGURE 1:GAM-4-CR LOCAL POWER INPUT CONNECTOR...........................................................................................7
FIGURE 2:GAM SFP+ CONNECTORS.......................................................................................................................7
FIGURE 3: F-TYPE CONNECTORS ..............................................................................................................................8
FIGURE 4: LOCAL MANAGEMENT PORTS ARE AT THE TOP RIGHT CORNER OF THE GAM CIRCUITRY........................................8
FIGURE 5: GAM SERIAL MANAGEMENT PORT PINOUT ................................................................................................9
FIGURE 6: GAM GLOBAL STATUS LEDS....................................................................................................................9
FIGURE 7: G.HN PORTS LEDS...............................................................................................................................10
FIGURE 8: SFP+ LED..........................................................................................................................................10
FIGURE 9: GAM RESET (RST) BUTTON ..................................................................................................................11
FIGURE 10: GAM LOGIN PAGE (BROWSER SPECIFIC)................................................................................................20
FIGURE 11: GAM PORT STATUS PAGE (DEFAULT PAGE AFTER LOGIN)...........................................................................21
List of Tables
TABLE 1: GAM GLOBAL LED INDICATORS.................................................................................................................9
TABLE 2: G.HN PORTS LED INDICATORS .................................................................................................................10
TABLE 3: SFP+ LED INDICATOR ............................................................................................................................11
TABLE 4: GAM DEFAULT CREDENTIALS ...................................................................................................................20
TABLE 5: GAM SUMMARY FEATURES ....................................................................................................................26
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Chapter 1
______________________________________
About the GAM
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1.1 Introduction
The GAM is a Fiber to the Distribution Point (FTTDp) solution typically installed
inside a wiring closet. The GAM-4-CRX and GAM-4-CX come with one (1) 10
Gigabit SFP+ interfaces to support any type of fiber or PON standards (using an
SFP-based or external ONT as required that is compatible with the OLT).
The ITU-T G.9960 G.hn Wave-2 standard leverages the existing telephone wiring
(UTP, CAT-3 or CAT-5/5e) or RG-6/RG-59 coax cabling to deliver a Gigabit
Internet service to each subscriber without the cost, complexity and delays
associated with in-building fiber installation. G.hn is an Access technology for
Operators looking to simplify their access network and backend infrastructure with
an Ethernet-like technology that is highly scalable without some of the inherent
complexity of DSL-related technologies. With G.hn, Operators deliver advanced
services such as Gigabit High Speed Residential Internet and 4K IPTV without the
high capital and operational expenses associated with a fiber retrofit. Each G.hn
subscriber port supports up to 1.7 Gbps of dynamically allocated bandwidth for
near symmetrical Gigabit services over the existing telephone wire or coaxial
cable. The Positron GAM solution is MEF CE 2.0 compliant and is ideally suited to
deliver Business Ethernet services in an MDU and/or MTU deployment.
Note: Read Chapter 4 Safety and Warnings before proceeding.
1.2 GAM Connections
This section provides an overview of the connectors inside the GAM-4-CRX and
GAM-4-CX. Please refer to section 2 for a detailed step-by-step installation
procedure.
1.2.1 Power Connection
The GAM-4-CRX is Reverse Power Fed (from G1001-CR endpoint devices) while
the GAM-4-CX is locally powered. There must be at least one (1) G1001-CR
device per G.hn coax port of a GAM-4-CRX that is serving customers. Other
subscribers can then use a G1001-CR or a G1001-C/G1000-C as needed.
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Figure 1: GAM-4-CR Local Power Input Connector
1.2.2 Ethernet (SFP+) Port
Figure 2: GAM SFP+ Connectors
The GAM has one (1) SFP+ ports that support any MSA-compliant SFP/SFP+
modules. (Fiber: 1G, 10G and Copper RJ-45: 100M, 1G).
Important note: When connecting the SFP+ port to a Passive Optical Network
(PON) fiber connection, please make sure to use an Optical Network Unit (ONU)
approved by the OLT vendor you are using.
12Vdc power connector
SFP+ connector cage
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1.2.3 G.hn Ports
The GAM-4-CRX and GAM-4-CX have 4 F-type coaxial connectors.
Figure 3: F-type connectors
1.2.4 Local management ports
The GAM devices have two (2) local management ports located near the top right
corner of the enclosure.
Figure 4: Local Management Ports are at the top right corner of the GAM circuitry
The CRAFT port is a standard serial (V.24, 115200, 8, N, 1)) port that provides
access to the command line interface of the GAM device.
The pinout of the RJ-45 serial port is compatible with the popular Cisco pinout as
per the following diagram:
Craft (serial) port
Gigabit Ethernet
Management port
COAX F-type
Connectors
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Figure 5: GAM Serial Management Port pinout
The MGMT port is a 10/100/1000Base-T Ethernet port provides access to the WEB
GUI interface using a standard WEB browser or an SSH interface to the command
line interface of the GAM device.
1.2.5 GAM LED Indicators
The GAM uses three (3) LED indicators inserted in the cover of the IP67 enclosure
to provide information about its global status and operating mode.
Figure 6: GAM global status LEDs
LED
Condition
Function
RPF
Off
On
Always OFF for the GAM-4-CX
since it does not support a
Reverse Power Feed
SRV
Solid Green
Solid Yellow
Solid Red
System OK
GAM is starting up
No Internet Connection
STA
Solid Green
Solid Yellow
Blinking Yellow
Solid Red
Normal
Minor Alarm Active
Firmware Update in Progress
Critical or Major Alarm Active
Table 1: GAM Global LED indicators
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Each of the G.hn ports has two (2) status LEDs.
Figure 7: G.hn Ports LEDs
The top row of LEDs indicates the state of the G.hn link while the bottom row
indicates the presence of the Reverse Power Feed source (from a G1001-CR
device at the customer end).
LED
Condition
Function
G.hn ports
Off
Blinking
On
Disabled or Link Down
Bad or low speed G.hn link
Link is Up
G.hn port power
Off
Green
Always ON for the GAM-4-CX
since it is locally powered
Table 2: G.hn Ports LED indicators
The SFP+ port of the GAM has a dedicated status LED located near the top of the
PCB, to the right of the G.hn LEDs.
Figure 8: SFP+ LED
G.hn Port LEDs
SFP+ LED
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