Positron GAM-12-M User manual

G.hn Access Multiplexer (GAM)
Quick Installation Guide
GAM-12-M / GAM-24-M
GAM-12-C / GAM-24-C

GAM Quick Installation Guide
Positron Access Solutions 2 Document 180-0193-001 R01
Publication Information
©2020 Positron Access Solutions
GAM (G.hn Access Multiplexer)
Quick Installation Guide
Publication date: May 2020
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: [phone]
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.............................................................................................................7
1.2.1 Power Connection........................................................................................................7
1.2.2 Ethernet (SFP+) Ports..................................................................................................8
1.2.3 G.hn Ports....................................................................................................................8
1.2.4 Local management ports .............................................................................................9
1.2.5 GAM LED Indicators ..................................................................................................10
1.2.6 GAM Reset Button.....................................................................................................11
Chapter 2.......................................................................................................................................12
WEB Management........................................................................................................................12
2.1 Introduction......................................................................................................................13
2.2 System Management ......................................................................................................13
2.2.1 Logging into the WEB GUI.........................................................................................13
2.2.2 System.......................................................................................................................14
2.2.3 General Information...................................................................................................14
Chapter 3.......................................................................................................................................15
Technical Specifications.............................................................................................................15
3.1 GAM Technical Specifications ........................................................................................16
Chapter 4.......................................................................................................................................20
Safety and Warnings....................................................................................................................20
Chapter 5.......................................................................................................................................23
Warranty and Customer Service ................................................................................................23

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List of Figures
FIGURE 1: GAM-12-M FRONT PLATE .....................................................................................................................7
FIGURE 2: GAM-24-M FRONT PLATE ....................................................................................................................7
FIGURE 3:GAM-12-C FRONT PLATE.......................................................................................................................7
FIGURE 4: GAM-24-C FRONT PLATE.......................................................................................................................7
FIGURE 5:GAM POWER INPUT CONNECTOR.............................................................................................................7
FIGURE 6:GAM SFP+ CONNECTORS.......................................................................................................................8
FIGURE 7: GAM G.HN RJ-45 CONNECTORS .............................................................................................................8
FIGURE 8: CLOSE-UP OF GAM G.HN RJ-14 CONNECTOR.............................................................................................9
FIGURE 9:CLOSE-UP OF GAM G.HN RJ-45 CONNECTOR .............................................................................................9
FIGURE 10: GAM G.HN F-TYPE CONNECTORS...........................................................................................................9
FIGURE 11: GAM SERIAL MANAGEMENT PORT PINOUT ............................................................................................10
FIGURE 12: GAM LOCAL MANAGEMENT PORTS ......................................................................................................10
FIGURE 13: GAM RESET (RST) BUTTON ................................................................................................................11
FIGURE 14: GAM LOGIN PAGE (BROWSER SPECIFIC)................................................................................................13
FIGURE 15: GAM PORT STATUS PAGE (DEFAULT PAGE AFTER LOGIN)...........................................................................14
List of Tables
TABLE 1: GAM LED INDICATORS ..........................................................................................................................10
TABLE 2: GAM DEFAULT CREDENTIALS ...................................................................................................................13
TABLE 3: GAM SUMMARY FEATURES ....................................................................................................................19

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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. Each GAM comes with two (2) 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). These SFP+ ports can further
support additional GAM devices in medium to large MDUs and share the fiber
backhaul link.
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 5 Safety and Warnings before proceeding.

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1.2 GAM Connections
All ports and connectors of GAM devices are located on the front of the device.
Figure 1: GAM-12-M Front Plate
Figure 2: GAM-24-M Front Plate
Figure 3: GAM-12-C Front Plate
Figure 4: GAM-24-C Front Plate
1.2.1 Power Connection
The GAM devices require local 110-220Vac power and come with a country-
specific power cord. The power connector incorporates an ON/OFF power
switch. A field-replaceable fuse (250v / 5A 5mm x 20mm cartridge type time lag
(slow blow) is part of the AC power connector housing as per the following
illustration.
Figure 5: GAM Power Input Connector
Field-replaceable fuse, remove from
cover to access the fuse.

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1.2.2 Ethernet (SFP+) Ports
Figure 6: GAM SFP+ Connectors
The GAM has two (2) SFP+ ports that support any MSA-compliant SFP/SFP+
modules. (Fiber: 1G, 10G and Copper RJ-45: 100M, 1G)
Second uplink allows you to:
Increase overall capacity
oEither via Link aggregation, or
oBy splitting subscriber traffic between the two uplinks.
Uplink protection
oLACP
oRing G.8032
oPoint to point G.8031
Daisy chain another GAM
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.
1.2.3 G.hn Ports
The GAM-12-M has 12 G.hn RJ-45 ports and the GAM-24-M has 24 G.hn RJ-45
ports. When connecting a single telephone pair to an RJ-45 port (SISO mode),
you need to use the “inner” pair. When connecting a second pair (MIMO mode),
the second pair needs to be connected to the “outer” pair.
Figure 7: GAM G.hn RJ-45 Connectors
NOTE: RJ-45 or RJ-14 cables can both be used to connect to the GAM

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Looking at the RJ-14 connector below, pair 1 (inner pair) is connected to pins 2
and 3. Pair 2 (outer pair) is connected to pins 1 and 4.
Figure 8: Close-up of GAM G.hn RJ-14 Connector
Looking at the RJ-45 connector below, pair 1 (inner pair) is connected to pins 4
and 5. Pair 2 (outer pair) is connected to pins 3 and 6.
Figure 9:Close-up of GAM G.hn RJ-45 Connector
The GAM-12-C has 12 G.hn F-type Coax ports and the GAM-24-C has 24 G.hn
F-type Coax ports. Each F-type G.hn port of the GAM can serve up to sixteen
(16) remote G.hn end-point devices using standard coax splitters (5 MHz to 2400
MHz). Note: coax splitters are optional and not included with the GAM devices.
Figure 10: GAM G.hn F-type Connectors
1.2.4 Local management ports
The GAM devices have two (2) local management ports. 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:

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Figure 11: GAM Serial Management Port pinout
The MGMT port is a 10/100/1000BaseTX Ethernet port that 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.
Figure 12: GAM Local Management Ports
1.2.5 GAM LED Indicators
The GAM uses two (2) LED indicators to provide information about its global
status and operating mode. The G.hn ports have status LEDs under each port.
The two (2) SFP+ ports of the GAM each have a dedicated status LED located
under each SFP+ connector.
LED
Condition
Function
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
G.hn ports
Off
Blinking
On
Disabled or Link Down
Bad or low speed G.hn link
Link is Up
1 or 2 (located under
SFP+ connector)
Off
Green
Blinking green
Disabled or Link is Down
Link is Up
Link Activity
Table 1: GAM LED indicators