Powerline Ethernet Adapter
User Manual
EU type
Introduction
This user manual provides practical information for the
installation, operation and application of the device. It is
suitable for those with little or no networking experience,
although some advanced topics are also covered.
A glossary of acronyms is included in Appendix A for
reference.
Save Our Environment
This symbol means that when the equipment has
reached the end of its useful life, it must be taken
to a recycling centre and processed separate from
domestic waste.
The cardboard box, the plastic contained in the packaging,
and the parts that make up this device can be recycled in
accordance with regionally established regulations.
Never throw this electronic equipment out along with
your household waste. You may be subject to penalties or
sanctions under the law. Instead, ask for instructions from
your municipal government on how to correctly dispose of it.
Please be responsible and protect our environment.
Copyright
Copyright© 2008 Comtrend Corporation. All rights reserved.
The information contained herein is proprietary to Comtrend
Corporation. No part of this document may be translated,
transcribed, or reproduced in any form or by any means
without prior written permission of Comtrend Corporation.
NOTE: This document is subject to change without notice.
Table of Contents
Chapter 1 - Introduction 2
Chapter 2 - Basics
3
2.1
Device Layout
3
2.2
Front Panel
4
2.3
Default Settings 5
Chapter 3 - Quick Setup 6
3.1
Internet Connection
6
3.2
Computer Connection
8
Chapter 4 - Network Performance
12
4.1
Point-to-Point Network 13
4.2
Point to Multipoint Network
14
4.3
Neighboring Networks 15
Chapter 5 - Web User Interface
5.1
IP Configuration
17
17
5.1.1 Fixed IP
17
5.1.2 Isolation
21
5.2
Login Screen
21
5.3
WUI homepage 22
5.4
Further Information
25
5.5
Change Configuration
30
Chapter 6 - HELP 38
6.1
Troubleshooting
38
6.2
FAQ
41
Appendix A - Acronyms 44
Chapter 1 - Introduction
This user guide provides details concerning the installation,
configuration and application of COMTREND Corporation’s
PowerGrid 902 Powerline adapter.
The PowerGrid 902 is the first of its kind to incorporate an
AC filter with rear socket. It allows for the connection of the
adapter to the electrical grid of a home without depriving the
user of a single power outlet.
The PowerGrid 902 is the physical link between Powerline
and Ethernet (10/100M) networks. The design is such that,
on the one hand, it avoids limiting a power socket to just PLC
purposes, and on the other hand, provides a filtered power
socket to avoid interference from appliances connected to
it.
The front panel of the PowerGrid 902 has two buttons and
three LEDs that allow the user to configure a secure PLC
network without the use of a computer. The Status LED
shows the available level of data throughput in the application
layer.
SPECIAL FEATURES
 One Button Security Setup - Automatic generation of
an Encryption Key and Network Identifier by pressing a
single button!
 Throughput Indicator - A tri-color Status LED that
shows estimated data throughput in the application
layer
 Rear Socket with AC Filter - Plug the PowerGrid 902
into a power outlet without losing use of the outlet for
other applications.
Chapter 2 - Basics
2.1 Device Layout
The following figure shows the physical layout of the
PowerGrid 902 adapter.
LAN the yellow port
located on top
AP/STBY
ETHERNET
STATUS
FRONT PANEL
CONFIG
RESET
ON
STBY
Powerline Ethernet
Adapter with Filte r
POWER OULET
– AC Filtered
Outlet located in
front
POWER PLUG
– located in
back
2.2 Front Panel
This table provides descriptions of the front panel
buttons and LEDs.
Button
Function
CONFIG/RESET
(Security Setup /
Factory Reset)
Press for “One Button Security Setup”. Holding down the button for a long period
will result in a “Factory Reset”. ON/SBY
(Power ON /
Standby button)
Used to switch the adapter between ON and
STANDBY (Power Saving) modes. Turning
off the adapter will also set the “Status” &
“Ethernet” LEDs to “off”
LED
Function
• Red: Adapter is ON. If PLC link, Estimated
Application Throughput < Threshold 1
(6Mbps).
STATUS*
• Orange: if PLC link, Threshold 1 (6Mbps)
< Estimated Application Throughput <
Threshold 2 (12Mbps).
• Green: if PLC link, Estimated Application
Throughput > Threshold 2 (12Mbps)
• BLINKING (in RED, ORANGE or GREEN):
Traffic in the Ethernet port.
• Green On: LAN connection established.
ETHERNET
• Off: LAN connection is not established.
• Blinking: Data transmitting/receiving
• Red: Adapter in Standby mode.
• Green (steady): Fixed AP (access point).
AP/STBY
• Green (blinking): Fixed AP is searching.
• Off: Adapter in EP (End Point) mode.
• 3 Flashes: EP has exchanged keys with
AP
* see Chapter 4 for more details.
2.3 Default Settings
The factory default settings are presented below.
• Network Mode is AP (Public)
• IP Configuration is Fixed IP
• MAC Type is In-Home AV
• Node type is End Point
• Configuration password = paterna
• Factory Reset password = betera
• Fixed IP address = 10.10.1.69
• Fixed IP subnet mask = 255.255.0.0
• Default Gateway IP address = 192.168.1.105
NOTE: These configuration settings can be customized using
a web browser. For further instructions, see Chapter 5
- Web User Interface. To return the adapter to factory
default settings, follow the FACTORY RESET procedure in
the Troubleshooting section of this manual.
Chapter 3 - Quick Setup
PowerGrid 902 units are configured by default with flexible
network settings.
As a result, when they are plugged into the power mains of
a home they will connect to an already existing PowerGrid
network. If there is no existing network they will create a
new network that will operate smoothly but without enhanced
security features.
This is why it is recommended to reconfigure your PowerGrid
902 units to form a secure network (with a unique network
identifier and encryption key). This can be accomplished
using just the front panel buttons on the PowerGrid units. The
following sections describe how to setup a secure network in
this way.
NOTE: You will need a single PowerGrid 902 unit and Ethernet
cable for each computer, or other device, that you wish to
connect to the Internet.
3.1
Internet Connection
The steps below show how to connect a PowerGrid 902
unit to your modem.
1.Turn on your modem and wait for
the Internet connection to become
active.
2.Plug a PowerGrid 902 unit into the
power socket closest to the modem
as in figure 1 (at right). The Status
LED on the front panel of the unit
should light up RED.
3. As in figure 2, connect the
PowerGrid 902 unit to the LAN port
of the modem with an Ethernet
cable. The ETHERNET LED on the
unit should light up GREEN.
6
AP UNIT CONFIGURATION
A PowerGrid network consists of one AP (Access Point)
unit connected to multiple EP (End Point) units. The
AP unit controls access to the Internet and connects
the EP units to the network. Follow step 4 (below) to
configure the AP unit.
4.As shown in figure 3, press the CONFIG/RESET button
on the PowerGrid 902 unit. Wait for the AP/STBY LED
to start blinking and then release it. Wait another
thirty (30) seconds until it stops blinking and check
the AP/STBY LED.
If the AP/STBY LED is now ON, then setup was
successful and you can now proceed to section 3.2,
where you will configure the EP unit. If AP/STBY LED is now OFF, or just keeps blinking,
you must first press the CONFIG/RESET button for 15
seconds to reset the unit and repeat step 4.
After several attempts, if the AP/STBY LED does not
stay ON, then disconnect the PowerGrid 902 unit from
the modem and the power socket, choose another
unit and repeat the process from step 2.
If all else fails, contact your supplier or service
provider for further assistance.
3.2 Computer Connection
The steps below show how to connect a PowerGrid 902
unit to your computer.
1.Turn on your computer.
2.Plug a PowerGrid 902 unit into the power socket
closest to the computer. The Status LED should light
up RED, as in figure 1.
3.Connect the PowerGrid 902 to the computer with an
Ethernet cable, see figure 3. The ETHERNET LED on
the unit should light up GREEN.
EP UNIT CONFIGURATION
As previously discussed, a PowerGrid network can have
only one AP unit. This unit was configured in section 3.1. All other units must be set as EP units.
To do so, follow these steps:
4.As shown in figure 5, press the CONFIG/RESET button
on the AP unit until the AP/STBY LED starts blinking
and then release it. You now have thirty (30) seconds
to complete the EP set up.
5.Before the AP unit AP/STBY
LED stops blinking, press the
CONFIG/RESET button on the
PowerGrid 902 that you wish to
configure as an EP unit. Wait
for its AP/STBY LED to start
blinking and then release the
button. After a few seconds,
the AP/STBY LED should flash
quickly three times and then
turn OFF, as shown in figure 6.
If the AP/STBY LED of the EP unit is now OFF, then
proceed to step 6.
If the AP/STBY LED of the EP unit is now ON, or just
keeps blinking, you must press CONFIG/RESET for 15
seconds and then return to step 4.
After several tries, if the AP/STBY LED of the EP unit
does not remain OFF, then disconnect it from its
power socket and from the computer, or other device.
Select another EP unit, if possible, and repeat the
process from step 2.
If all else fails, contact your supplier or service
provider for further assistance.
6.After adding the EP unit to the PowerGrid
network, check that the AP/STBY LED on
the AP unit has stopped blinking and
remains ON, as in figure 7.
If the AP/STBY LED on the AP unit is
now OFF, or just keeps blinking, you
must first reset the unit and then try
again. To reset the unit, press CONFIG/
RESET for 15 seconds. Then return to
step 4 in section 3.1 and repeat section
3.2 for every device you wish to add to
the network.
After several tries, if the AP/STBY LED on
10
the AP unit does not stay ON, then disconnect it from
the modem and its power socket, choose another unit
to be the AP unit and repeat the entire process starting
from section 3.1, step 2.
If all else fails, contact your supplier for further assistance.
7.If the AP/STBY LED on the AP unit is now ON, then
you have completed the setup successfully.
CONGRATULATIONS!
You can now either:
 Add another computer to the network by repeating
steps 1-6
OR

Stop here and start enjoying your secure PowerGrid
network!
NOTE: These PowerGrid 902 units keep their network security
settings even after losing power, so that you don’t need to
reset the network, when moving network devices or even
after a power outage!
11
Chapter 4 - Network Performance
The Status LED shows the estimated available level of
throughput in the application layer.
There are three levels of throughput indicated by three
different LED colors. A particular adapter shows, with one
color, the throughput level with reference to the adapter
sending the most data to it. In the case of a network consisting
of two adapters, they always show the level of throughput
with reference to the other. However, in the case of a network
of three or more adapters, each one internally measures
the amount of bytes received from the other adapters in
the network and only shows the level of throughput with
reference to the one that is sending the most data.
A throughput estimator also keeps track of the number of
neighboring networks since available bandwidth will be
divided between them when sharing the PLC channel. The
thresholds for these levels of throughput are preconfigured
in the system as shown below.
LED
STATUS
RED
Estimated Throughput < Threshold 1 (6Mbps)
ORANGE
Threshold 1 (6Mbps) < Estimated Throughput <
Threshold 2 (12Mbps)
GREEN
Estimated Throughput > Threshold 2 (12Mbps)
BLINKING
(in any
color)
Traffic in the PLC port
(for each estimated throughput level)
12
4.1 Point-to-Point Network
• CASE 1: Estimated throughput is less than 6 Mbps.
The PLC channel is not able to transmit an SDTV
channel. The STATUS LED will be RED as shown in the
following figure:
Set Top Box
video server
data flow
AP/STBY
AP/STBY
ETHERNET
ETHERNET
E
STATUS
STATUS
S
ST
CONFIG
RESE T
ON
STBY
CONFIG
RES ET
ON
STBY
Powerline Ethernet
Adapter with Filt er
PLC
adapter Powerline Ethernet
Adapter with Filt er
PLC
adapter Status indicator blinking RED
Estimated throughput < Mbps
• CASE 2: Estimated throughput is greater than 6 Mbps
but less than 12 Mbps. The PLC channel is able to
transmit an SDTV channel, but not two SDTV channels
simultaneously or one HDTV channel. The STATUS LED
will be ORANGE as shown in the following figure:
Set Top Box
video server
data flow
AP/STBY
AP/STBY
ETHERNET
E
ETHERNET
STATUS
S
ST
STATUS
CONFIG
RES ET
CONFIG
RESE T
ON
STBY
PLC
adapter ON
STBY
Powerline Ethernet
Adapter with Filt er
PLC
adapter Powerline Ethernet
Adapter with Filt er
Status indicator blinking ORANGE
Mbps < Estimated throughput < Mbps
• CASE 3: Estimated throughput is greater than 12
Mbps. The PLC channel is able to play at least two
SDTV channels or 1 HDTV. The STATUS LED will be
GREEN as shown here:
13
Set Top Box
video server
data flow
AP/STBY
ETHERNET
AP/STBY
ETHERNET
E
STATUS
S
ST
STATUS
CONFIG
RES ET
CONFIG
RESE T
ON
STBY
ON
STBY
Powerline Ethernet
Adapter with Filt er
PLC
adapter Powerline Ethernet
Adapter with Filt er
PLC
adapter Status indicator blinking GREEN
Estimated throughput < Mbps
4.2 Point to Multipoint Network
In the case where the PLC network is composed of three
or more adapters, similar situations could arise as with
a point-to-point network. These are illustrated in the
following figures:
video server
Set Top Box
Estimated throughput < Mbps
data flow AP/STBY
ETHERNET
STATUS
CONFIG
RESE T
ON
STBY
PLC
adapter AP/STBY
ETHERNET
E
STATUS
S
ST
CONFIG
RESE T
ON
STBY
Powerline Ethernet
Adapter with Filt er
Powerline Ethernet
Adapter with Filt er
PLC
adapter Status indicator blinking GREEN
Mbps < Estimated throughput < Mbps
Set Top Box
data flow AP/STBY
ETHERNET
E
STATUS
S
ST
CONFIG
RESE T
ON
STBY
PLC
adapter Powerline Ethernet
Adapter with Filt er
Status indicator blinking ORANGE
The STATUS LED in each adapter will show the estimated
level of the PLC link from which it is receiving the most
amount of traffic at any given time. The status LED in
PLC adapter 3, for example, could be showing a level of
throughput available from PLC adapter 2 for a period of
14
time as illustrated in the figure above. However, traffic
flow could change through user intervention and then
the status LED in PLC adapter 3 could show the level
with reference to the PLC adapter 1 link, as shown in
the following figure.
video server
Set Top Box
Estimated throughput > Mbps
AP/STBY
ETHERNET
E
STATUS
S
STA
CONFIG
RESE T
ON
STBY
Powerline Ethernet
Adapter with Filt er
AP/STBY
data flow ETHERNET
E
STATUS
S
ST
CONFIG
RESE T
ON
STBY
Powerline Ethernet
Adapter with Filt er
Status indicator blinking GREEN
PLC Status indicator blinking GREEN PLC
adapter adapter Estimated throughput > Mbps
data flow Set Top Box
data flow Estimated throughput < Mbps
AP/STBY
ETHERNET
E
STATUS
S
STA
CONFIG
RESE T
ON
STBY
PLC
adapter Powerline Ethernet
Adapter with Filt er
Status indicator blinking RED
4.3 Neighboring Networks
The Status LED also takes into account the possibility
of having neighboring networks. In such a case, the
throughput evaluator will divide the available bandwidth
in two when there is visibility between any two networks
since the PLC channel must be shared on a time basis. In
the following figure, an example of an isolated network
is first shown.
15
ISOLATED NETWORK
Set Top Box
video server
data flow
AP/STBY
ETHERNET
STATUS
AP/STBY
ETHERNET
E
STATUS
S
ST
CONFIG
RESE T
CONFIG
RESE T
ON
STBY
ON
STBY
Powerline Ethernet
Adapter with Filt er
PLC
adapter Powerline Ethernet
Adapter with Filt er
PLC
adapter Status indicator blinking GREEN
Estimated throughput = 0 Mbps
In the next figure, the previous network (network 1)
sees a new neighboring network (network 2), and a
new evaluation of throughput is made to show the user
that channel conditions have changed and available
bandwidth has decreased:
PLC NETWORK Set Top Box
video server
data flow
AP/STBY
ETHERNET
AP/STBY
ETHERNET
E
STATUS
S
ST
STATUS
CONFIG
RESET
CONFIG
RESET
ON
STBY
ON
STBY
Powerline Ethernet
Adapter with Filter
PLC
adapter Powerline Ethernet
Adapter with Filter
PLC
adapter Status indicator blinking ORANGE
Estimated throughput = 0 Mbps / = 0 Mbps
PLC NETWORK Set Top Box
video server
data flow
AP/STBY
AP/STBY
ETHERNET
E
ETHERNET
STATUS
S
ST
STATUS
CONFIG
RESET
CONFIG
RESET
ON
STBY
PLC
adapter ON
STBY
Powerline Ethernet
Adapter with Filter
PLC
adapter Powerline Ethernet
Adapter with Filter
Status indicator blinking GREEN
Estimated throughput = 0 Mbps / = Mbps
16
Chapter 5 - Web User Interface
The web-based user interface (WUI) provides information
about your PowerGrid 902 units and can also be used to
configure or reset their settings. The WUI is accessed using a web browser, such as Microsoft
Internet Explorer. The instructions that follow assume the
PowerGrid network has been configured correctly (i.e.
according to the instructions in Chapter 3 or the QIG) and
that the host computer is running Windows XP.
NOTE: The process described in the following sections will work
for any operating system (OS), but the specific steps will
need to be adjusted to match your particular computing
environment.
5.1 IP Configuration
Before using the WUI, you first need to adjust the IP
configuration of the host PC. This is a two-step process
addressed in subsections 5.1.1 and 5.1.2.
FYI:
The IP configuration defines the location of your
computer within the network using Internet Protocol (IP)
addressing. Your computer needs an IP address so it can
receive and send information on the network.
In Fixed IP mode you assign this IP address yourself;
while in DHCP mode it is assigned automatically by a
DHCP server.
5.1.1
Fixed IP
The following instructions describe how to change the IP
configuration of your computer to FIXED IP mode, so
17
that you can access the WUI.
STEP 1: Turn on your computer (and login, if necessary).
STEP 2:F�����������������������������������������������
rom the desktop (as shown below), click on the
Start button and select Network Connections.
Next, double-click Local Area Connections to
open its window and then click the Properties
button.
NOTE: You may also access this window by doubleclicking the Local Area Connection icon on your
taskbar.
STEP 3:Select Internet Protocol (TCP/IP) and click the
Properties button.
��������
18
STEP 4:Check the settings in the Internet Protocol
(TCP/IP) Properties dialog box (shown on
the far right in the figure above). Make sure to
record all the settings you see here, as you will
need to reset them later.
STEP 5:If the “Obtain an IP address automatically” radio
button is selected, then your PC is configured
in DHCP mode. In this case you should select
the “Use the following IP address” radio button
instead.
If it is not selected then your PC is already in
FIXED IP mode.
STEP 6:Change the IP address, Subnet Mask and
Default Gateway to match those values shown
in the figure below and click the OK button.
19
Click OK
STEP 7:Close the previous two windows. Since you made
changes, click OK, but not Cancel! You then
must wait for the LAN connection to reset.
After the connection recovers, you should check the
connection status on the support tab of the Local Area
Connection Status dialog box, as shown below.
This shows the IP
address as assigned
in STEP 6.
Press this button
to repair the
connection
Look here for a
status report of the
connection.
20
5.1.2
Isolation
Now that the IP configuration of the computer is
complete, we will proceed by isolating the PowerGrid
902 unit you wish to access. This is required since every
unit on the network is configured by default with the
same Fixed IP address.
STEP 1:Move the PowerGrid unit you wish to access to a
power jack close to your computer. Connect the
ETHERNET cable from your computer or network
hub to this PowerGrid unit.
STEP 2:Remove every other PowerGrid unit from the
network by placing them in Standby mode (press
the ON/STBY button and release) OR to be
certain, you can simply unplug every unit from
its power jack.
STEP 3:Press the Repair button on the Local Area
Connection Status dialog box shown above.
This resets the network so you can access the
WUI.
When you have finished using the WUI, return the
PowerGrid 902 unit to its previous location, reset
the IP configuration of the host computer, and press
the Repair button again to return your system to its
previous condition.
5.2 Login Screen
Perform the following steps to login to the WUI: STEP 1:Start the Internet browser and enter the IP
address as a HTTP link in the URL address field
and press Enter. For the default IP address of
10.10.1.69, you must enter “http://10.10.1.69”,
as shown below.
21
STEP 2:The login screen should appear, as shown below.
Enter the login password in top section and click
OK to continue. To perform a factory reset on the
device you must enter the factory reset password
in the bottom section and click OK. The WUI
login password and other default settings can be
found in section 2.3 Default Settings.
NOTE: You can change this password in the WUI (see section
5.5).
5.3 WUI homepage
If login is successful, you will arrive at the WUI
homepage. This screen provides summary information
concerning the PowerGrid unit and its connections. It
also provides access to the Further Information and
Change Configuration screens. These screens are
discussed in section 5.4 and section 5.5.
22
23
See the table below for details.
PLC Connections
PLC PORT
The PLC data connection port
MAC Address
Phy Tx/Rx Throughput
Bridge State
Network Id
This is a code that identifies each
PowerGrid unit. It can be found on
the back label of the unit below the
barcode.
Physical Transmission / Reception
Throughput is a measure of network
bandwidth. Available data transmission capacity is roughly half this value.
Enabled indicates there is a data connection.
Disabled indicates no data connection.
The Network ID is used for network
security.
If present, the network is in FIXED
AP mode.
External Interfaces
Interface
Phy Throughput
Bridge State
EXTA = Ethernet
Physical Throughput = Data Transmission
Capacity
Forwarding = Active
General Information
MAC Type
MAC Address
IP Address
The MAC Address shown above is an
In-Home AV type.
This is a code that identifies each
PowerGrid unit. It can be found on
the back label of the unit below the
barcode.
The IP Address defines the location of
the PowerGrid unit on the local area
network.
24
Node Type
This will show as Fixed AP, EP or AP.
Number of Boots
The number of times this PowerGrid
unit has been rebooted since the last
Factory Reset.
NOTE: The remaining fields are advanced settings used for technical
support.
5.4 Further Information
This screen provides more detailed information
concerning your network. It is divided into System
Information followed by multiple Status sections:
Mac, Network, PHY, Multicast, VLAN, QoS and
Security. Each section is divided by a link back to the
WUI homepage entitled “Return to main page”.
25
26
The tables below provide details about each section.
Uptime
Firmware Version
System Information
This shows the length of time the
PowerGrid unit has been on.
This shows the PowerGrid 902 installed
firmware version
27
MAC Status
This section provides information for identification of the unit
by MAC Address, in addition to PowerGrid network encryption
details.
This is a code that identifies each PowerGrid
MAC Address
unit. It can be found on the back label of
the unit below the barcode.
The MAC Address shown above is an InMAC Type
Home AV type.
Node Type
This will show as Fixed AP, EP or AP.
This field is used in Fixed AP mode to
identify the network.
Network Identifier
The Network ID can be up to 20 ASCII
characters long.
In Fixed AP mode, it shows a key in ASCII
Encryption Key
or HEX format. In AP mode it shows as
Disabled.
The possibilities are 3DES or 128/256 bit
Encryption Type
AES (Fixed AP) or None (AP mode)
Network Status
This section shows the TCP/IP settings for the PowerGrid unit.
Either DHCP (Automated) or FIXED IP
IP Configuration
(Manual)
IP Address /
Subnet Mask
These values define the location of the
PowerGrid unit on the local area network.
Default Gateway
IP Address
The IP address of the router that forwards
traffic to a destination that is out of reach
of the PowerGrid 902 unit.
PHY Status
This section summarizes the physical parameters of the
network.
Notches
Enabled by default.
28
Wireless (27Mhz)
keyboard/mouse
notch
Power Control
Disabled by default. When Enabled, it
prevents wireless keyboard/mouse signal
interference.
This function minimizes the transmission
power of each PowerGrid unit while
maintaining data throughput performance.
Enabled by default.
Multicast Status
IGMP (Internet Group Membership Protocol) is a protocol used
by IP hosts to report their multicast group memberships to any
neighboring multicast routers.
IGMP Aware
Enabled = IGMP on
Multicast
Disabled = IGMP off (default)
Syndication
VLAN Status
With this function an 802.1Q VLAN Tag is added to the data
packet header. This enables a physical LAN to be divided into
several discrete virtual LANs. Data packets are given priority
based upon their VLAN Tag and VLAN Priority settings.
Enabled = VLAN Tagging - On
VLAN Configuration
Disabled = VLAN Tagging - Off
VLAN Tag
A number in the range from 2 to 4094.
A number between 0 and 7 (7 is highest
VLAN Priority
priority).
QoS Status
Improve the end-user experience by prioritizing audio, video and
voice traffic and optimizing the way shared network resources
are allocated among applications.
Default Priority
2 is the default priority
Criterion 1
None (default) or Custom
Criterion 2
None (default) or Custom
Security Status: Indicates whether WUI password login is
required
Password is currently installed / No
Status
password installed
29
5.5 Change Configuration
This submenu provides the following configuration
sections: MAC, Network, PHY, Multicast, VLAN,
QoS, Security, Hardware Reset and Flash Upgrade.
Each section is divided by a “Return to main page”
link to the WUI homepage.
30
31
The tables below provide details about each configuration
section.
32
MAC Configuration
This section provides options to configure the PowerGrid unit
MAC characteristics and network encryption mode.
In-Home AV is the only option at this
MAC Type
time.
There are 2 types of nodes, Fixed AP
Node Type
and EP.
This field is used in Fixed AP mode to
identify the network.
Network Identifier
The Network ID can be up to 20 ASCII
characters long.
This key, in either ASCII or HEX
Encryption Key
format, is used to encrypt the network.
It is disabled in AP mode.
You have the choice of 3DES or AES
Encryption Type
encryption.
AES encryption can be set as 128 or
AES Key Length
256 bit strength.
NOTES:In 3DES mode, the Encryption Key can be up to 24 ASCII
characters or 42 hexadecimal numbers. In AES mode, it can be
up to 8 ASCII characters or 14 hexadecimal numbers (256 bit
mode). Hexadecimal encryption is stronger.
Network Configuration
The section provides options to configure the IP configuration. IP
Either DHCP (Automated) or FIXED IP
Configuration
(Manual).
NOTE: In FIXED mode the IP Address, Subnet Mask and Default
Gateway IP Address can be set manually, while in DHCP
mode they are assigned by a server. Changes do not
become effective until after a reboot of the PowerGrid
902 unit.
These values define the location of
IP Address /
the PowerGrid unit on the local area
Subnet Mask
network.
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Default
Gateway IP
Address
The IP address of the router that
forwards traffic to a destination that is
out of reach of the PowerGrid 902 unit.
PHY Configuration
This section provides options to configure the physical
parameters of the network
Notches
Enabled by default.
Wireless (27Mhz)
Enable this option when using a wirekeyboard/mouse
less keyboard or mouse to avoid internotch
ference. It is disabled by default.
This function minimizes the transmission
power of each PowerGrid unit while
Power Control
maintaining data throughput performance. Enabled by default.
Multicast Configuration
IGMP (Internet Group Membership Protocol) is a protocol used
by IP hosts to report their multicast group memberships to any
neighboring multicast routers.
IGMP Aware
Enabled = IGMP on
Multicast Syndication Disabled = IGMP off (default)
VLAN Configuration
With this function an 802.1Q VLAN Tag is added to the data
packet header. This enables a physical LAN to be divided into
several discrete virtual LANs. Data packets are given priority
based upon their VLAN Tag and VLAN Priority settings.
Enabled = VLAN Tagging - On
VLAN Configuration
Disabled = VLAN Tagging - Off
Choose a number in the range from 2
VLAN Tag
to 4094.
Choose from 0 to 7 with 7 being the
VLAN Priority
highest priority.
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QoS Configuration
Improve the end-user experience by prioritizing audio, video and
voice traffic and optimizing the way shared network resources
are allocated among applications.
Default Priority
2 is the default priority
Criterion 1
None (default) or Custom
Criterion 2
None (default) or Custom
If custom criteria are chosen, the following (previously hidden)
fields will appear:
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The QoS criteria are applied as follows:
a) Criterion 1 is processed first and Criterion 2 second b) If Criterion 1 is met, Criterion 2 will NOT be applied
Therefore, Criterion 2 should be more general than Criterion
1, and there are certain incompatibilities that arise between
these criteria. Consult this table:
If Criterion 1 Protocol is …
Origin IP / Destination IP
TCP with port
UDP with port
Then Criterion 2 can be …
None of these protocols.
UDP Protocol, Origin and
destination IP address for
UDP packets
TCP Protocol, Origin and
destination IP address for
TCP packets
Security Configuration
This section allows you to change (or remove) the configuration
password, used to access the WUI, and perform a factory reset
to recover default settings
Password is currently installed / No
Status
password installed
To change the configuration password,
notice that you must enter it twice;
first in the New password field and
again in the Confirm new password
Set Configuration
field. The configuration password can
Password
be up to 20 characters in length. To
remove the configuration password,
leave these fields empty. Click OK to
make this change.
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Factory Reset
To reset the device to factory settings,
enter the factory reset password (see
section 2.3 Default Settings) and click
OK. Use this function with caution,
since, as noted onscreen, this will erase
the current configuration settings.
Hardware Reset
Press the Hardware Reset button to reboot the device but not
erase the configuration settings. It performs the same function
as holding down the Config/Reset button on the front panel of
the unit. You must perform a hardware reset of the device to
change some settings, such as IP mode (DHCP/FIXED).
Flash Upgrade
This section provides a method to upgrade the flash memory
in the PowerGrid unit from a server using FTP or TFTP protocol.
The flash memory is divided into three sections: the firmware,
a boot-loader and the factory settings. Each of these can be
upgraded separately to provide for maximum flexibility.
Reports the current status of the flash
Status
upgrade.
Choose firmware, loader or factory
Flash section
settings
Upgrade Protocol
Choose FTP or TFTP
Enter the IP address of the FTP or
TFTP server.
Server IP Address
This will be provided by your service
provider.
FTP User and
Enter the user name and password
Password
if required
This is the filename of the flash
upgrade. The firmware and loader
Filename
have .bin extensions, while factory
settings are stored as .cfg files.
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Chapter 6 - HELP
This PowerGrid unit has been designed to be a reliable and
easy-to-use home networking device. However, should you
experience any problems, please refer to the troubleshooting
and FAQ sections below to resolve your issue.
6.1 Troubleshooting
FACTORY RESET
To reset a unit to factory default settings, simply press
the CONFIG/RESET button for 15 seconds. The adapter
will reset its configuration to factory default settings
and auto-reboot. If the reboot is successful, it will be
configured in EP mode. If you reset the AP unit, you
will need to repeat the entire network setup process
described in Chapter 3.
NETWORK SETUP
1.Converting an AP unit into an EP unit:
c) Make sure the PowerGrid unit is plugged
directly into the electrical outlet and that it is
powered on.
d) Do a factory reset (see the RESET PROCEDURE
above).
2. Converting an EP unit into an AP unit:
e) Make sure the PowerGrid unit is plugged directly
into the electrical outlet and that it is powered on.
f) Press CONFIG/RESET button until its AP/STBY
LED starts blinking.
g) Wait until configuration period finishes (30
seconds). At that point the adapter has been
designated as a Fixed AP if its AP/STBY LED is
GREEN.
38
3.There MUST only be one Fixed AP in a network. Verify
that this is the case by examining the AP/STBY LED
for all adapters. If there is more than one AP in the
network, it means that the key exchange process has
failed.
h) Perform a factory reset on the adapter you do
not wish to be designated as an AP (see step
1 above).
i) Repeat the network configuration procedure
again (see Chapter 3).
j) If the configuration procedure fails again, it
is possible the adapters are using different
forms of encryption. For example, one might
be using AES and the other 3DES. To eliminate
this as a possibility, perform a factory reset
on all adapters and repeat the configuration
process.
k) If configuration still fails, connect a PC to
each adapter, and use the WUI tool to ensure
that all PLC devices have the same network
ID, encryption mode and key. If not, try to
configure them in electrical outlets that are
nearby to avoid a communications problem.
Once configured, move the adapters to their
final position and test connectivity again.
l) If encryption mode is not the same in the two
adapters, then the EP may not have the ability
to set the AP encryption mode for regulation
issues or because it is from an older generation
when AES was not available. Try to put the AP
in an encryption mode compatible with all PLC
devices, such as 3DES encryption.
4. NETWORK performance If the network is performing slowly or not at all, try
the following:
39
m)Check the ETHERNET LED on every PowerGrid
902 unit.
n) If the ETHERNET LED on any unit is OFF, check
that the PowerGrid unit is connected securely.
The ETHERNET LED on every unit should be
GREEN.
o) Make sure that the settings of all your
networked devices are correct.
p) Next check the STATUS LED of every unit. If
any unit has a RED STATUS LED, plug that unit
into a different power outlet and wait for the
STATUS LED color to change to ORANGE or
GREEN.
q) If the STATUS LED of any unit remains RED
after moving it to another outlet, perform a
factory reset on the unit as described above.
r) If there is no change, perform a
on every unit, starting with the
will then need to reconfigure
according to the instructions in
factory reset
AP unit. You
the network
Chapter 3 -
Quick Setup .
FYI:
A PowerGrid unit with a GREEN STATUS LED supports a
HDTV signal (>12 Mbps), while a unit showing ORANGE
can support a SDTV signal (6-12 Mbps).
NOTE: If the HDTV video bandwidth is lower than 12Mbps, it
may be possible to stream the video with an ORANGE
STATUS LED in some cases.
FURTHER ASSISTANCE
If this section has failed to resolve or address your issue,
consult your local agent.
40
6.2 FAQ
The following are frequently asked questions (FAQ) and
answers.
1. Do PowerGrid units work with surge protected power
strips?
Basic power strips provide simple protection for a
surge increase in voltage. More expensive models have
this feature, but also include a filter which provides
protection against EMI (Electromagnetic Interference)
or RFI (Radio Frequency Interference).
Every house has different wiring set ups, and it is
impossible to say which anti-surge protectors will
work with the PowerGrid 902 and which will not.
Our test lab and user experience has shown that the
more expensive strips with EMI/RFI filters are more
likely to prevent the PowerGrid 902 working than the
basic strips. The Status LED will show red if there is
a problem.
2. What if I cannot fit my PowerGrid unit into my plug
socket?
Your PowerGrid units might not fit because the sockets
are too close to the floor or are in the skirting board.
The easiest way around this is to use a trailing power
strip and plug the Adapter into the strip. Please make
sure that the strip is not an anti-surge adapter strip,
as per the previous point.
41
3.What if the flat next door has PowerGrid units as
well?
In this case, make sure to configure the units according
to the procedure in this user manual. That way, each
pair of PowerGrid units will have its own unique
security key and your connection will be secure.
4.Is it safe to leave the PowerGrid units on all the
time?
PowerGrid units are CE certified and completely safe
to leave plugged in all the time. They may become
slightly warm in use - this is perfectly normal. However,
you may wish to put them into standby mode when
not in use. To do so, simply press the ON/STBY button
and release.
5.How much power do PowerGrid units use?
The Adapters use 5.0 Watts when in use and 1.8 Watts
in standby. Prices vary between electricity suppliers,
but on average, both Adapters running all the time
would cost about 9.6p a month.
6.What is the best way to check that my PowerGrid
units are working properly?
Your PowerGrid units are set to work together as a
pair, and should work perfectly out of the box. The
best way to test them is to find a double plug socket,
and plug them in next to each other. Often the best
42
place to find a double plug socket is in your kitchen.
Alternatively plug them into a trailing extension strip
(but not an anti-surge strip). When plugged in, after
10-40 seconds, the PowerGrid units will configure
themselves so that each has a GREEN STATUS LED and
one of the pair has an AP/STBY LED that is GREEN.
If the PowerGrid units don’t configure themselves as
above, you need to follow the FACTORY RESET
procedure in the Troubleshooting section.
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Appendix A - Acronyms
The following is a list of acronyms referenced in this
manual.
Acronym
3DES
AES
AP
DES
EP
HDTV
Expanded
Triple DES
Advanced Encryption Standard
Access Point
Data Encryption Standard
End Point
High Definition TV
ISP
Internet Service Provider
PC
Personal Computer
PLC
Powerline Communications
SDTV
Standard Definition TV
STB
Set Top Box
WUI
Web User Interface
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260072-014 PowerGrid 902 User Manual A2.0