GE MDS Mercury 900, Mercury 3650, Mercury P23 Reference Manual
MDS MercuryTM Series
Reference Manual
Wireless IP/Ethernet Transceiver
including Mercury 900, 3650, and Option Set 1 Remotes
Covering all AP and Remote Units
05-4446A01, Rev. E
MARCH 2009
TABLE OF CONTENTS
1 PRODUCT OVERVIEW & APPLICATIONS ............ 1
1.1 ABOUT THIS MANUAL................................................................................................... 3
1.1.1 Start-Up Guide .................................................................................................................... 3
1.1.2 Online Access to Manuals ................................................................................................... 3
1.1.3 Conventions Used in This Manual ....................................................................................... 3
1.2 PRODUCT DESCRIPTION............................................................................................. 4
1.2.1 Model Offerings ................................................................................................................... 6
1.2.2 Remote Radio with Option Set 1 .........................................................................................7
1.2.3 GE MDS P23 Protected Network (Redundant) Configuration ............................................. 8
1.2.4 External GPS PPS Option ................................................................................................... 9
1.3 APPLICATIONS ..............................................................................................................9
1.3.1 Mobile/Fixed Data System .................................................................................................. 9
1.3.2 Wireless LAN ..................................................................................................................... 10
1.3.3 Point-to-Point LAN Extension .............................................................................................11
1.3.4 Serial Radio Network Connectivity .....................................................................................11
1.3.5 Multiple Protocols and/or Services .....................................................................................11
1.3.6 Wireless LAN with Mixed Services .................................................................................... 12
1.3.7 Upgrading Older Wireless Network with Serial Interfaces ................................................. 13
1.4 NETWORK DESIGN CONSIDERATIONS.................................................................... 14
1.4.1 Extending Network Coverage with Repeaters ................................................................... 14
1.4.2 Protected Network Operation using Multiple APs .............................................................. 16
1.4.3 Collocating Multiple Radio Networks ................................................................................. 16
1.5 GE MDS CYBER SECURITY SUITE............................................................................ 17
1.6 ACCESSORIES ............................................................................................................ 19
2 TABLETOP EVALUATION & TEST SETUP............. 21
2.1 OVERVIEW................................................................................................................... 23
2.2 STEP 1: CONNECT THE ANTENNA PORTS............................................................... 23
2.3 STEP 2: CONNECT THE PRIMARY POWER.............................................................. 24
05-4446A01, Rev. E Mercury Reference Manual i
2.4 STEP 3: CONNECT PC TO THE TRANSCEIVER ....................................................... 25
2.5 STEP 4: REVIEW TRANSCEIVER CONFIGURATION ................................................ 25
2.5.1 Getting Started .................................................................................................................. 25
2.5.2 Procedure .......................................................................................................................... 25
2.5.3 Basic Configuration Defaults ............................................................................................. 25
2.6 STEP 5: CONNECT LAN OR SERIAL DATA EQUIPMENT.......................................... 26
2.6.1 Option Set 1 Connectors ................................................................................................... 28
2.7 STEP 6: CHECK FOR NORMAL OPERATION ............................................................ 29
3 DEVICE MANAGEMENT......................................... 31
3.1 INTRODUCTION .......................................................................................................... 33
3.1.1 Differences in the User Interfaces .....................................................................................33
3.2 ACCESSING THE MENU SYSTEM ............................................................................. 35
3.2.1 Methods of Control ............................................................................................................ 36
3.2.2 PC Connection and Log In Procedures ............................................................................. 36
3.2.3 Navigating the Menus ........................................................................................................ 40
3.3 BASIC OVERVIEW OF OPERATION ........................................................................... 42
3.3.1 Starting Information Screen ............................................................................................... 42
3.3.2 Main Menu ......................................................................................................................... 43
3.4 CONFIGURING NETWORK PARAMETERS ............................................................... 45
3.4.1 Network Configuration Menu .............................................................................................45
3.4.2 Ethernet Port Configuration Menu ..................................................................................... 56
3.4.3 Bridge Configuration .......................................................................................................... 58
3.4.4 SNMP Agent Configuration ................................................................................................ 58
3.4.5 AP Location Push Config Menu ......................................................................................... 60
3.4.6 SNTP Server Configuration ............................................................................................... 64
3.5 RADIO CONFIGURATION............................................................................................ 65
3.5.1 Radio Configuration Menu ................................................................................................. 65
3.5.2 Serial Port Configuration ................................................................................................... 76
3.6 MODBUS / TCP SERVER CONFIGURATION ............................................................. 88
3.6.1 Modbus/TCP in Mercury TransceiversAn Overview ...................................................... 88
3.6.2 Menu Selections ................................................................................................................ 89
3.7 SECURITY CONFIGURATION MENU ......................................................................... 92
3.7.1 Device Security Menu ....................................................................................................... 93
ii Mercury Reference Manual 05-4446A01, Rev. E
3.7.2 Wireless Security Menu ..................................................................................................... 95
3.7.3 IEEE 802.1x Device Authentication ................................................................................... 97
3.7.4 Manage Certificates .......................................................................................................... 99
3.8 REDUNDANCY CONFIGURATION (AP ONLY)......................................................... 102
3.9 GPS CONFIGURATION (REMOTE ONLY) ................................................................ 107
3.10 DEVICE INFORMATION MENU ............................................................................... 109
3.11 PERFORMANCE INFORMATION MENU..................................................................110
3.12 MAINTENANCE/TOOLS MENU ............................................................................... 123
3.12.1 Installing Firmware via TFTP ........................................................................................ 129
3.12.2 Auto Firmware Upgrade Menu (AP Only) ..................................................................... 138
3.13 PERFORMANCE OPTIMIZATION............................................................................ 140
3.13.1 Proper Operation and What to Look For ....................................................................... 143
4 TROUBLESHOOTING & RADIO
MEASUREMENTS.................................................. 147
4.1 TROUBLESHOOTING................................................................................................ 149
4.1.1 Interpreting the Front Panel LEDs ................................................................................... 149
4.1.2 Troubleshooting With the Embedded Management System ........................................... 150
4.1.3 Using Logged Operation Events ..................................................................................... 153
4.1.4 Alarm Conditions ............................................................................................................. 154
4.1.5 Correcting Alarm Conditions ............................................................................................ 155
4.1.6 Logged Events ................................................................................................................ 155
4.2 RADIO (RF) MEASUREMENTS ................................................................................. 157
4.2.1 Antenna System SWR and Transmitter Power Output .................................................... 157
4.2.2 Antenna Aiming (For Directional Antennas)...................................................................... 158
5 PLANNING A RADIO NETWORK ......................... 161
5.1 INSTALLATION PLANNING ....................................................................................... 163
5.1.1 General Requirements .................................................................................................... 163
5.1.2 Site Selection .................................................................................................................. 164
5.1.3 Terrain and Signal Strength ............................................................................................. 165
5.1.4 Antenna & Feedline Selection ......................................................................................... 165
5.1.5 How Much Output Power Can be Used? ........................................................................ 169
5.1.6 Conducting a Site Survey ................................................................................................ 169
5.1.7 A Word About Radio Interference .................................................................................... 170
05-4446A01, Rev. E Mercury Reference Manual iii
5.1.8 ERP Compliance at 900 MHz .......................................................................................... 172
5.1.9 ERP Compliance at 3650 MHz ........................................................................................ 173
5.2 dBm-WATTS-VOLTS CONVERSION CHART............................................................ 174
6 TECHNICAL REFERENCE.................................... 175
6.1 DATA INTERFACE CONNECTORS ........................................................................... 177
6.1.1 LAN Port .......................................................................................................................... 177
6.1.2 COM1 Port ...................................................................................................................... 177
6.2 SPECIFICATIONS ...................................................................................................... 178
6.3 NOTES ON SNMP...................................................................................................... 180
6.3.1 Overview ......................................................................................................................... 180
7 GLOSSARY OF TERMS & ABBREVIATIONS ...... 185
Copyright Notice
This publication is protected by U.S.A. copyright law. Copyright 2009, GE MDS. All rights
reserved.
ISO 9001 Registration
GE MDS adheres to the internationally-accepted ISO 9001 quality system standard.
To our Customers
We appreciate your patronage. You are our business. We promise to serve and anticipate your
needs. We will strive to give you solutions that are cost effective, innovative, reliable and of the
highest quality possible. We promise to build a relationship that is forthright and ethical, one that
builds confidence and trust.
Related Materials on the Internet
tion notes, firmware upgrades and other updated information is available on the GE MDS Web site
at www.GEmds.com.
—
Data sheets, frequently asked questions, case studies, applica-
About GE MDS
Over two decades ago, GE MDS began building radios for business-critical applications. Since
then, we have installed thousands of radios in over 110 countries. To succeed, we overcame
impassable terrain, brutal operating conditions and disparate, complex network configurations. We
also became experts in wireless communication standards and system applications worldwide. The
result of our efforts is that today, thousands of utilities around the world rely on GE MDS-based
wireless networks to manage their most critical assets.
iv Mercury Reference Manual 05-4446A01, Rev. E
The majority of GE MDS radios deployed since 1985 are still installed and performing within our
customers' wireless networks. That’s because we design and manufacture our products in-house,
according to ISO 9001 which allows us to control and meet stringent global quality standards.
Thanks to our durable products and comprehensive solutions, GE MDS is the wireless leader in
industrial automation
—
including oil and gas production and transportation, water/wastewater
treatment, supply and transportation, electric transmission and distribution and many other utility
applications. GE MDS is also at the forefront of wireless communications for private and public
infrastructure and online transaction processing. Now is an exciting time for GE MDS and our customers as we look forward to further demonstrating our abilities in new and emerging markets.
As your wireless needs change you can continue to expect more from GE MDS. We'll always put
the performance of your network above all. Visit us at www.GEmds.com for more information.
OPERATIONAL & SAFETY NOTICES
RF Exposure
(900 MHz models)
RF Exposure
(3650 MHz models)
Professional installation required. The radio equipment described in this
guide emits radio frequency energy. Although the power level is low, the
concentrated energy from a directional antenna may pose a health hazard.
Do not allow people to come closer than 23 cm (9 inches) to the antenna
when the transmitter is operating in indoor or outdoor environments. More
information on RF exposure is on the Internet at
www.fcc.gov/oet/info/documents/bulletins
.
To meet co-location requirements, the FCC requires a 20cm (7.87 inch)
separation distance between the unit’s WIFI and fundamental antenna
installations. See
“ERP Compliance at 900 MHz” on Page 172 for allow-
able power/antenna settings for this radio.
Professional installation required. The transceiver described here emits
radio frequency energy. Although the power level is low, the concentrated
energy from a directional antenna may pose a health hazard. Do not allow
people to come closer than 22 cm (8.7 inches) to the antenna when the
transmitter is operating. This calculation is based on an 18 dBi panel
antenna. Refer also to the table below, which lists required separation distances. Additional information on RF exposure is available on the Internet
at www.fcc.gov/oet/info/documents/bulletins. See
“ERP Compliance at
3650 MHz” on Page 173 for allowable power/antenna settings for this
radio.
To meet co-location requirements, the FCC requires a 20cm (7.87 inch)
separation distance between the unit’s WIFI and fundamental antenna
installations.
05-4446A01, Rev. E Mercury Reference Manual v
us
CSA/
This product is approved for use in Class 1, Division 2, Groups A, B, C & D Hazardous Locations. Such locations are
defined in Article 500 of the National Fire Protection Association (NFPA) publication NFPA 70 , otherwise known as
the National Electrical Code.
The transceiver has been recognized for use in these hazardous locations by the Canadian Standards Association
(CSA) which also issues the US mark of approval (CSA/
C22.2 No. 213-M1987.
Notice (Remote Transceiver Only)
US
). The CSA Certification is in accordance with CSA STD
CSA Conditions of Approval: The transceiver is not acceptable as a stand-alone unit for use in the
hazardous locations described above. It must either be mounted within another piece of equipment
which is certified for hazardous locations, or installed within guidelines, or conditions of approval,
as set forth by the approving agencies. These conditions of approval are as follows:
The transceiver must be mounted within a separate enclosure which is suitable for the intended
application.
The antenna feedline, DC power cable and interface cable must be routed through conduit in accordance with the National Electrical Code.
Installation, operation and maintenance of the transceiver should be in accordance with the transceiver's installation manual, and the National Electrical Code.
Tampering or replacement with non-factory components may adversely affect the safe use of the
transceiver in hazardous locations, and may void the approval.
A power connector with screw-type retaining screws as supplied by GE MDS must be used.
Do not disconnect equipment unless power has been switched off or the area is known to
be non-hazardous.
EXPLOSION
HAZARD!
Refer to Articles 500 through 502 of the National Electrical Code (NFPA 70) for further
information on hazardous locations and approved Division 2 wiring methods.
FCC Part 15 Notices
The transceiver series complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause undesired operation. This
device is specifically designed to be used under Section 15.247 of the FCC Rules and Regulations.
Any unauthorized modification or changes to this device without the express approval of Microwave Data Systems may void the user’s authority to operate this device. Furthermore, the Mercury
Series is intended to be used only when installed in accordance with the instructions outlined in
this manual. Failure to comply with these instructions may also void the user’s authority to operate
this device.
Part 15 rules also require that the Effective Isotropic Radiated Power (EIRP) from a Mercury Series
900 MHz installation not exceed 36 dBm. For the Mercury 3650, EIRP must not exceed 1-watt per
MHz. Refer to this manual for more information.
vi Mercury Reference Manual 05-4446A01, Rev. E
Industry Canada RSS Notices
Operation is subject to the following two conditions: (1) this device may not cause interference,
and (2) this device must accept any interference, including interference that may cause undesired
operation of the device.
To reduce potential radio interference to other users, the antenna type and its gain should be chosen
so that the Equivalent Isotropic Radiated Power (EIRP) is not more than that permitted for successful communication.
This device has been designed to operate with the antennas listed in this manual. Antennas not
included here are strictly prohibited for use with this device. The required antenna impedance is 50
ohms.
Manual Revision and Accuracy
This manual was prepared to cover a specific version of firmware code. Accordingly, some screens
and features may differ from the actual unit you are working with. While every reasonable effort
has been made to ensure the accuracy of this guide, product improvements may also result in minor
differences between the manual and the product shipped to you. If you have additional questions
or need an exact specification for a product, please contact our Customer Service Team using the
information at the back of this guide. In addition, manual updates can often be found on the GE
MDS Web site at www.GEmds.com.
Environmental Information
The manufacture of this equipment has required the extraction and use of natural resources.
Improper disposal may contaminate the environment and present a health risk due to hazardous
substances contained within. To avoid dissemination of these substances into our environment, and
to limit the demand on natural resources, we encourage you to use the appropriate recycling systems for disposal. These systems will reuse or recycle most of the materials found in this equipment
in a sound way. Please contact GE MDS or your supplier for more information on the proper disposal of this equipment.
05-4446A01, Rev. E Mercury Reference Manual vii
viii Mercury Reference Manual 05-4446A01, Rev. E
PRODUCT OVERVIEW
1
1 Chapter Counter Reset Paragraph
Contents
1.1 ABOUT THIS MANUAL ......................................................... 3
1.2 PRODUCT DESCRIPTION ................................................... 4
AND APPLICATIONS
1.1.1 Start-Up Guide ....................................................................... 3
1.1.2 Online Access to Manuals ...................................................... 3
1.1.3 Conventions Used in This Manual .........................................3
1.2.1 Model Offerings ...................................................................... 6
1.2.2 Remote Radio with Option Set 1 ............................................ 7
1.2.3 GE MDS P23 Protected Network (Redundant) Config. ......... 8
1.2.4 External GPS PPS Option ..................................................... 9
1.3 APPLICATIONS ..................................................................... 9
1.3.1 Mobile/Fixed Data System ..................................................... 9
1.3.2 Wireless LAN ......................................................................... 10
1.3.3 Point-to-Point LAN Extension ................................................ 11
1.3.4 Serial Radio Network Connectivity ......................................... 11
1.3.5 Multiple Protocols and/or Services ......................................... 11
1.3.6 Wireless LAN with Mixed Services ......................................... 12
1.3.7 Upgrading Older Wireless Network with Serial Interfaces .....13
1.4 NETWORK DESIGN CONSIDERATIONS ............................ 14
1.4.1 Extending Network Coverage with Repeaters .......................14
1.4.2 Protected Network Operation using Multiple APs .................. 16
1.4.3 Collocating Multiple Radio Networks ..................................... 16
1.5 GE MDS CYBER SECURITY SUITE .................................... 17
1.6 ACCESSORIES..................................................................... 19
05-4446A01, Rev. E Mercury Reference Manual 1
2 Mercury Reference Manual 05-4446A01, Rev. E
1.1 ABOUT THIS MANUAL
This Reference Manual is one of two publications provided for users of
the Mercury Series
information, an overview of common applications, a screen-by-screen
review of the menu system, technical specifications, suggested settings
for various scenarios, and troubleshooting information. This manual
should be available to all personnel responsible for network design,
setup, commissioning and troubleshooting of the radios.
1.1.1 Start-Up Guide
The Mercury Series Start-Up Guide (Part No. 05-4558A01) is a companion publication to the Reference Manual. It is a smaller book, with a
specific purpose—to guide an installer in the basic steps for getting a
transceiver on the air and communicating with other units in a network.
It provides only the essential information installers need for getting their
equipment up and running in the shortest time possible.
TM
transceiver system. It contains detailed product
1.1.2 Online Access to Manuals
In addition to printed manuals, many users need access to documents
electronically. This is especially useful when you need to access documentation while traveling, or want to share a document with another
user in the field. Electronic documents also allow searching for a specific term or subject, especially in larger manuals.
Access manuals for our equipment anytime from our Web site at
www.GEmds.com
page and select
. Simply click the
Product Manuals
from the drop-down list. A search
Downloads
tab at the top of the home
window appears to help you locate the manual you need.
Online manuals are provided as PDF files in the Adobe
®
Acrobat
®
stan-
dard. If necessary, download the free reader for PDF files from
www.adobe.com
.
1.1.3 Conventions Used in This Manual
On-Screen Menu Items
On-screen menu items or command entries are presented in a distinctive
font to set them apart from regular text (for example:
Address, Password
). You will find this font most often in Chapter 3,
where the menu system is discussed in detail. When variable settings or
a range of options are available for a menu option, the items are presented inside brackets, with the default setting (if any) shown last after
a semicolon:
Network Name, IP
[
available settings or range; default setting]
05-4446A01, Rev. E Mercury Reference Manual 3
Menu Strings
To help show the path to a menu selection, navigation strings are used
in several places in this manual. For example, suppose you want to view
or set the Network Name assigned to your system. This item is located
in the Network Configuration Menu, so the navigation string in the text
would appear as shown:
Main Menu>>Network Configuration>>Network Name
By following this order of menus, you can quickly reach the desired
menu.
1.2 PRODUCT DESCRIPTION
The GE MDS Mercury SeriesTM transceiver (Figure 1-1) is an
easy-to-install wireless solution offering extended range, secure operation, and multi-megabit performance in a compact and rugged package.
The transceiver is ideally suited for demanding applications in fixed or
mobile environments, where reliability and range are paramount.
The transceivers are commonly used to convey text documents,
graphics, e-mail, video, Voice over IP (VoIP), and a variety of other
application data between mobile, fixed-point, and WAN/LAN-based
entities.
Based on multi-carrier Orthogonal Frequency Division Multiplexing
(OFDM), the transceiver features high speed/low latency, basic Quality
of Service (QoS) for prioritizing traffic, Ethernet and serial encapsulation, and network roaming. It also provides enhanced security features
including AES encryption and IEEE 802.1x Device Authentication,
making the Mercury system the best combination of security, range, and
speed of any industrial wireless solution on the market today.
Invisible place holder
Figure 1-1. The GE MDS Mercury SeriesTM Transceiver
(Remote unit shown, AP similar in appearance)
Rugged Packaging
The transceivers are housed in a compact and rugged die cast-aluminum
case that needs only protection from direct exposure to the weather. This
4 Mercury Reference Manual 05-4446A01, Rev. E
one enclosure contains all necessary components for radio operation and
data communications.
Simple Installation Mercury Transceivers are designed for rapid and trouble-free installa-
tion. For basic services, you simply connect the antennas (900 or 3650
MHz as required, and GPS), connect your data equipment, apply primary power, and set some operating parameters. No license is required
for 900 MHz operation in the USA, Canada, and many other countries.
A simple registration process is required for 3650 MHz operation in the
USA. Check requirements for your region before placing the equipment
into service. (NOTE: 3650 MHz is for APs and Fixed Remote stations.)
Most installations employ an omni-directional antenna at the Access
Point (AP) location and mobile stations. Fixed Remote stations often
employ a directional antenna aimed at the AP. Regardless of the type
used, antennas are a vital part of the system and must be chosen and
installed correctly. Refer to INSTALLATION PLANNING on Page 163
for guidance on choosing suitable antennas and installation sites.
Secure Operation Data network security is a vital issue in today’s wireless world. Mercury
transceivers provide multiple tools to help you build a network that minimizes the risk of eavesdropping and unauthorized access. Some are
inherent in the radio’s operation, such as the use of 900 MHz
spread-spectrum transmissions; others include AES data encryption,
enabling/disabling channels, IEEE 802.1X port blocking, approved
device lists, secure devices management protocols, and password protection.
Security is not a one-step process that can simply be turned on and forgotten. It must be practiced and enforced at multiple levels,
24 hours-a-day and 7 days-a-week. See “GE MDS CYBER SECURITY
SUITE” on Page 17 for more information about the transceiver’s secu-
rity tools.
Robust Radio
Operation
The transceivers are designed for operation in the 900 MHz license-free
Industrial, Scientific, and Medical (ISM) band and the 3650-3700 MHz
registered band. They provide consistent, reliable coverage over a large
geographic area.
Mobile range depends on many factors, including terrain, building density, antenna gain, and speed of travel. The unit is designed for successful application in a variety of mobile environments, and offers the
best combination of range, speed and robustness available in an industrial wireless package today. By using multiple Access Points, a network
can be created that provides consistent, reliable coverage over a large
metropolitan area. See “SPECIFICATIONS” on Page 178 for more
information on transmission range.
Flexible Services Users with a mix of equipment having Ethernet and serial data interfaces
can use this equipment via a Remote transceiver. The transceiver provides services in data networks that are migrating from legacy
05-4446A01, Rev. E Mercury Reference Manual 5
serial/EIA-232-based hardware to the faster and more easily interfaced
Ethernet protocol.
Flexible
Management
Transceiver
Features
You can locally or remotely configure, commission, troubleshoot, and
maintain the transceiver. Four different modes of access are available:
local RS-232 console terminal, local or remote IP access (via Telnet or
SSH), web browser (HTTP, HTTPS), and SNMP (v1/v2/v3) All IP
access interfaces are available through the unit’s wired Ethernet port and
over the air.
The text-based interfaces (RS-232 console, Telnet, and SSH) are implemented in the form of easy-to-follow menus, and the terminal server
provides a wizard to help you configure the units correctly.
The transceiver’s design makes the installation and configuration easy,
while allowing for future changes.
• Industrial-Grade Product—Extended temperature range for
trouble-free operation in extreme environments.
• Robust Radio Communications—Designed to operate over long
distances in dense, high-interference environments.
• Robust Network Security—Prevents common attack schemes
and hardware from gaining access or control of the network.
Common attack events are logged and reported by alarms.
• Transmission Speed—Operation at 1.5 Mbps is over 100-times
faster than 9.6 kbps radios.
• Plug-and-Play Connectivity—AP or Remote configuration
requires minimal setup.
• Built-in GPS Receiver—GPS technology is used for timing and
location data. The only external equipment needed for this functionality is a GPS antenna available from GE MDS).
1.2.1 Model Offerings
The transceiver comes in two primary models—Access Point and
Remote. Unique hardware is used for each model. Of the Remote radios,
there are two sub-types available—Standard Remote and Remote
with Option Set 1, both of which support Ethernet and serial services.
Table 1-1 summarizes each radio’s interface services.
Table 1-1. Transceiver Models and Data Interface Services
Model Sub-Type
Access Point N/A Yes Yes No No
Remote Standard Remote Yes Yes No No
Remote w/Option Set 1 Yes Yes Yes Yes
NOTES
1. COM1 provides access to the embedded Management System for all units.
6 Mercury Reference Manual 05-4446A01, Rev. E
Ethernet/LAN
1
COM1
1
USB Integrated WiFi
Available Frequency Bands
At the time of publication, Mercury transceivers are offered in two different frequency bands: 902-928 MHz (Mercury 900) and 3.65–3.70
GHz (Mercury 3650). The 900 MHz unit operates in a license-free spectrum (frequency hopping spread spectrum—FHSS), which may be used
by anyone in the USA, provided FCC Part 15 rules are observed.
Canada, and certain other countries allow license-free operation in this
band—check your country’s requirements.
The 3.65–3.70 GHz radio operates in a “registered” band using contention-based protocol, which provides additional protection from interference, but it requires FCC registration before operation can begin. Other
restrictions may apply based on your location and “grandfathered” FSS
users. Check local requirements before operation. GE MDS has published a whitepaper containing frequently asked questions about the
3.65–3.70 GHz band. To obtain a copy, request publication
05-4734A02. (NOTE: 3650 MHz is for APs and Fixed Remote stations.)
Operationally, the Mercury 3650 has two key differences from the Mercury 900: First, it operates on a different RF band (3.65–3.70 GHz).
Second, it only requires GPS for TDD synchronization of the Access
Points, which may or may not be needed for an installation.
Access Point or Remote?—Identification Tip
The outward appearance of AP and Remote radios is nearly identical,
however, the hardware for each type is different and they are not interchangeable. An quick way to identify them is to observe the color of the
gasket seal in the center of the radio case. APs have a black gasket,
while Remote units have a yellow gasket.
In addition to gasket color, a label on the top of each radio identifies it
as an AP or Remote unit. If the label shows an –A suffix, it is an AP. If
it shows a –R suffix, it is a Remote.
1.2.2 Remote Radio with Option Set 1
The “Option Set 1” Remote is similar to and compatible with the standard Mercury Remote. It contains the same 900 MHz radio, user interface, and primary functionality as the Standard Remote. The Standard
Remote can be directly replaced with the Option Set 1 Remote. The key
differences are the additional physical interfaces: an IEEE 802.11b/g
WiFi networking module, a USB device port, a USB host port, and a
second Ethernet port on the radio enclosure.
The USB ports are used for device management. The host port accepts
a flash drive and can be used to transfer firmware and configuration
files. The two Ethernet ports are connected to an internal, integrated
switch and included in the Layer 2 bridge.
05-4446A01, Rev. E Mercury Reference Manual 7
The internal WiFi module has FCC modular approval and may only be
operated by connecting one of the GE MDS approved antennas (see
802.11 WiFi Module Specifications below) to the reverse-SMA con-
nector on the radio’s front panel. Only these antennas may be used. The
WiFi module can operate as an 802.11 Access Point or Infrastructure
Station, according to user configuration. The operational mode (
structure RM
) and frequency can be configured through the unit's user
AP, Infra-
interface.
Invisible place holder
Figure 1-2. Mercury Remote with Option Set 1
(Note interface connector differences from Standard Remote)
802.11 WiFi Module Specifications
The specifications listed below are unique to Remotes with Option Set
1, which contain a 2.4 GHz WiFi module. SPECIFICATIONS on
Page 178 contains a complete list of general Mercury Series specifica-
tions.
Protocol: IEEE 802.11b/g OFDM 6 to 54Mbps, CCK 1 to
Frequency Range: 2400 to 2500MHz
Maximum Transmit Power: 15 dBm
Permissible Antennas: MDS 97-4278A36
FCC: Part 15C
FCC ID: VRA-SG9011028
WiFi Antenna Connector: Female Reverse SMA
11Mbps
MDS 97-4278A34
MDS 97-4278A35
1.2.3 GE MDS P23 Protected Network (Redundant)
Configuration
For mission-critical applications, a Protected Network Station is also
offered. This unit incorporates two Access Points, two power supplies,
and a switchover logic board that automatically selects between Transceiver A and Transceiver B as the active radio. Figure 1-3 shows the
8 Mercury Reference Manual 05-4446A01, Rev. E
protected chassis. For system-level information on this product, refer to
MDS publication 05-4161A01.
Invisible place holder
Figure 1-3. MDS P23 Protected Network Station
(incorporates two transceivers, with automatic switchover)
1.2.4 External GPS PPS Option
The External GPS Precise Positioning Service (PPS) option allows for
an external GPS device to provide the PPS input to the Mercury. This is
useful in installations where multiple radios require GPS timing. This
option prevents each Mercury from requiring its own GPS antenna.
Refer to the electrical specifications in the External GPS PPS Option
section on Page 180. This option is only available in hardware revision
1.0.2 or later.
1.3 APPLICATIONS
The following sections provide illustrations of typical transceiver installations. This is an overview only. A Network Administrator should be
involved in all installation planning activities.
1.3.1 Mobile/Fixed Data System
Mercury transceivers support high-speed data communications in a
mobile environment. In this application, Remote radios “roam” between
different Access Points, providing seamless transitions and continuous
coverage throughout a municipal area. Figure 1-4 shows an example of
an integrated system employing both mobile and fixed Mercury transceivers.
NOTE: 3650 MHz is for APs and Fixed Remote stations only.
05-4446A01, Rev. E Mercury Reference Manual 9
MDS NETview MS®
R
Computer
Server
(Ethernet)
Control Center
WAN
Router
Mercury
remote
Mercury AP
Mercury
remote
Invisible place holder
RTU/PLC
Mercury
remote
RS-232
Mobile DataMobile Data
(Ethernet)
Long Range WLAN
MDS 4790
Master Radio
Licensed Serial/IP Integration
Mercury
remote
Video
Surveillance
MDS 4710
MDS 4710
RS-232
RS-232
RTU/PLC
(Serial)
RTU/PLC
(Serial)
Figure 1-4. Integrated Mobile/Fixed Application
1.3.2 Wireless LAN
The wireless LAN is a common application of the transceiver. It consists
of a central control station (Access Point) and one or more associated
Remote units, as shown in Figure 1-5. A LAN provides communications
between a central WAN/LAN and remote Ethernet segments. The operation of the radio system is transparent to the computer equipment connected to the transceiver.
The Access Point is positioned at a location from which it communicates with all Remote units in the system. Commonly, this is a high location on top of a building or communications tower. Messages are
exchanged at the Ethernet level. This includes all types of IP traffic.
A Remote transceiver can only communicate over-the-air to an Access
Point (AP). Peer-to-peer communications between Remotes can only
take place indirectly via the AP. In the same fashion, an AP can only
communicate over-the-air to associated Remote units. Exception: Two
APs can communicate with each other “off-the-air” through their
Ethernet connectors using a common LAN/WAN.
Remote
Remote
Invisible place holder
LAN
LAN
Access Point
emote
LAN
Remote
LAN
WAN/LAN
10 Mercury Reference Manual 05-4446A01, Rev. E
Figure 1-5. Typical Wireless LAN
1.3.3 Point-to-Point LAN Extension
A point-to-point configuration (Figure 1-6) is a simple arrangement
consisting of an Access Point and a Remote unit. This provides a communications link for transferring data between two locations.
Invisible place holder
Access Point
LAN/WAN
Remote
LAN
Figure 1-6. Typical Point-to-Point Link
1.3.4 Serial Radio Network Connectivity
The transceiver provides a path for serial devices to migrate to
IP/Ethernet systems. Many radio networks in operation today still rely
on serial networks at data rates of 9600 bps or less. These networks can
use the transceiver as a means to continue using the serial service, while
allowing the infrastructure to migrate to an IP format.
A Remote transceiver with its serial port connected to a GE MDS
serial-based radio, such as the MDS x790/x710, MDS TransNET and
others, provides a path for bringing the data from the older radio into the
IP/Ethernet environment of a Mercury-based system.
Invisible place holder
Serial
Serial Conn.
MDS 4710 Remote
Device
NETWORK
ROUTER
NMS Control
Point
HUB
ROUTER
SCADA Host
Modbus/IP
Access Point
Remote Serial
Remote Serial
Remote Serial
Serial Conn.
Serial Conn.
MDS 4790
Master
MDS 9790
Master
MDS 9810
MDS 4710 Remote
MDS 9710 Remote
MDS 9710 Remote
MDS 9810 Remote
Master
MDS 9810 Remote
Serial
Device
Serial
Device
Serial
Device
Serial
Device
Serial
Device
Figure 1-7. Backhaul Network
1.3.5 Multiple Protocols and/or Services
Prior to the introduction of Ethernet/IP-based radios, two radios were
often used to service two different types of devices (typically connected
05-4446A01, Rev. E Mercury Reference Manual 11
to different SCADA hosts). A Mercury radio provides this capability
using a single remote unit. The unit’s serial port can be connected via IP
to different SCADA hosts, transporting different (or the same) protocols. Both data streams are completely independent, and the transceiver
provides seamless simultaneous operation as shown in Figure 1-8.
Invisible place holder
RTU
EIA-232
Flow Meter
EIA-232
EIA-232
EIA-232
EIA-232
EIA-232
Serial
Device
Serial
Device
Serial
Device
Serial
Device
NETview
HUB
HUB
WAN
ROUTER
HUB
HUB
SCADA Host
Modbus/IP
SCADA Host
Total Flow
Remote Serial
Remote Serial
Access Point
Remote Serial
Access Point
Figure 1-8. Multiple Protocol Network
By using a single radio, the cost of deployment is cut in half. Beyond
requiring only one radio instead of two, the biggest cost reduction comes
from using half of the required infrastructure at the remote site: one
antenna, one feedline, one lightning protector and ancillary hardware.
Other cost reductions come from the system as a whole, such as reduced
management requirements. And above all, the radio provides the potential for future applications that run over Ethernet and IP, such as video
for remote surveillance.
1.3.6 Wireless LAN with Mixed Services
The transceiver is an excellent solution for a long-range industrial wireless LAN. It offers several advantages over commercial solutions, primarily improved performance over extended distances. The rugged
construction of the radio and its extended temperature range make it an
ideal solution even in harsh locations. In extreme environments, a
simple NEMA enclosure is sufficient to house the unit.
The transceiver trades higher speed for longer range. Commercial
802.11a/b/g solutions are designed to provide service to relatively small
areas such as offices, warehouses and homes. They provide high data
rates but have limited range. The Mercury transmits at a higher power
level, uses a different frequency band, has higher sensitivity, and a nar-
12 Mercury Reference Manual 05-4446A01, Rev. E
rower channel to concentrate the radio energy, reaching farther distances. It is designed for industrial operation from the ground up.
IP-based devices that may be used with the transceiver include new,
powerful Remote Terminal Units (RTUs) and Programmable Logic
Controllers (PLCs). These, as well as other devices, may be used in
applications ranging from SCADA/telemetry monitoring, web-based
video, security monitoring, and Voice over IP. Figure 1-9 shows a typical wireless IP network.
Invisible place holder
Remote Bridge
IP Camera
IP/Ethernet
IP/Ethernet
IP/Ethernet
NMS Control
Point
SCADA Host
Modbus/IP
Printer
Access Point
Remote Bridge
Figure 1-9. Extended-Range LAN with Mixed Applications
1.3.7 Upgrading Older Wireless Network with Serial
Interfaces
Millions of wireless data products have been installed in the last two
decades for licensed and license-free operation, many of them manufactured by GE MDS. There are several ways that these systems can benefit
from incorporating Mercury equipment. The chief advantages are interface flexibility (serial and Ethernet in one unit), and higher data
throughput. By taking advantage of its built-in serial and Ethernet interfaces, the transceiver is well suited to replace leased lines, dial-up lines,
or existing “multiple address” data transceivers.
Replacing Legacy Wireless Products
In most cases, legacy radio transceivers supporting serial-interface
equipment can be replaced with Mercury transceivers. Legacy equipment can be connected to the transceiver through the
DB-25 to DB-9 cable wired for EIA-232 signaling. The
as a Data Communications Equipment (DCE) port.
05-4446A01, Rev. E Mercury Reference Manual 13
COM1 port with a
COM1 port acts
NOTE: Several previous GE MDS-brand products had non-standard
signal lines on their interface connectors (for example, to
control sleep functions and alarm lines). These special functions are not provided nor supported by the Mercury transceiver. Consult equipment manuals for complete pinout
information.
1.4 NETWORK DESIGN
CONSIDERATIONS
1.4.1 Extending Network Coverage with Repeaters
What is a Repeater System?
A repeater works by re-transmitting data from outlying remote sites to
the Access Point, and vice-versa. It introduces some additional
end-to-end transmission delay but provides longer-range connectivity.
In some geographical areas, obstacles can make communications difficult. These obstacles are commonly large buildings, hills, or dense
foliage. These obstacles can often be overcome with a repeater station.
Option A—Using two transceivers to form a repeater station
(back-to-back repeater)
Although the range between fixed transceivers can be up to 40 km (25
miles) over favorable terrain, it is possible to extend the range considerably by connecting two units together at one site in a “back-to-back”
fashion, creating repeater as shown in Figure 1-10. Use this arrangement
whenever the objective is to utilize the maximum range between stations. In this case, using high-gain Yagi antennas at each location provides more reliable communications than their counterparts—
omnidirectional antennas.
Invisible place holder
REPEATER
Access
Point
POINT-TO-POINT LINK
Remote
LAN/WAN
Access
Point
Ethernet
Crossover Cable
Remote
Figure 1-10. Typical LAN with a Repeater Link
LAN
Remote
LAN
Remote
LAN
Overview
Two transceivers may be connected “back-to-back” through the LAN
ports to form a repeater station. If the transceivers are connected directly
to each other, you must use an Ethernet cross-over cable. This configu-
14 Mercury Reference Manual 05-4446A01, Rev. E
ration is sometimes required in a network that includes a distant Remote
that would otherwise be unable to communicate directly with the Access
Point station due to distance or terrain.
The geographic location of a repeater station is especially important.
Choose a site that allows good communication with both the Access
Point and the outlying Remote site. This is often on top of a hill,
building, or other elevated terrain from which both sites can be “seen”
by the repeater station antennas. A detailed discussion on the effects of
terrain is given in Section 5.1.2, Site Selection (beginning on Page 164).
The following paragraphs contain specific requirements for repeater
systems.
Antennas Two antennas are required at this type of repeater station—one for each
radio. You must take measures to minimize the chance of interference
between these antennas. One effective technique for limiting interference is to employ vertical separation. In this arrangement, assuming
both antennas are vertically polarized, one antenna is mounted directly
over the other, separated by at least 10 feet (3 meters). This takes advantage of the minimal radiation exhibited by most antennas directly above
and below their driven elements.
Another interference reduction technique is to cross-polarize the
repeater antennas. If one antenna is mounted for polarization in the vertical plane, and the other in the horizontal plane, an additional 20 dB of
attenuation is achieved. The corresponding stations should use the same
antenna orientation when cross-polarization is used.
Network Name The two radios that are wired together at the repeater site must have dif-
ferent network names. For information on how to set or view the network names, see “STEP 3: CONNECT PC TO THE TRANSCEIVER”
on Page 25.
TDD Sync Mode To avoid interference between the two APs that form a repeater station,
they should be synchronized so that they will transmit at the same time
and receive at the same time. This eliminates the possibility of one AP
transmitting while another is trying to receive.
This can be accomplished by setting the
Frequency Configuration menu to GPS Required. See Frequency Control
TDD Sync Mode parameter in the
Menu on Page 67 for details.
Option B—Using the AP as a Store-and-Forward Packet
Repeater
You can extend a wireless network by using the Access Point as a
repeater to re-transmit the signals of all stations in the network. (See
Figure 1-11 on Page 16.)
05-4446A01, Rev. E Mercury Reference Manual 15
Invisible place holder
Remote
LAN/WAN
Remote
Access Point
REPEATER
Remote
Remote
LAN
LAN
LAN
Figure 1-11. Typical Store-and-Forward Repeater Arrangement
As with the conventional repeater described in Option 1 above, the location of a store and forward repeater is also important. A site must be
chosen that allows good communication with both the Access Point and
the outlying Remote site. This can be on the top of a hill, building, or
other elevated terrain from which all sites can be “seen” by the repeater
station antenna. A detailed discussion on the effects of terrain is given
in Section 5.1.2, Site Selection (beginning on Page 164).
1.4.2 Protected Network Operation using Multiple
APs
Although GE MDS transceivers have a very robust design and have
undergone intensive testing before being shipped, it is possible for isolated failures to occur. In mission-critical applications, down time can
be virtually eliminated by using some, or all, of the following configurations:
In a point-to-multipoint scenario, the Access Point services multiple
remotes. A problem in the Access Point will have an effect on all
remotes, since none will have access to the network. When operation of
the network does not tolerate any down time, it is possible to set up a
protected configuration for the Access Point to greatly reduce the possibility of this occurrence.
Two or more Access Points can be configured identically, each with its
own independent antenna. In this scenario, Remotes will associate with
one of the available Access Points. In case of a failure of that AP, the
Remotes will quickly associate with another Access Point, re-establishing connectivity to the end devices. Because only one Access Point
operates at any given time, collisions between APs is not possible.
1.4.3 Collocating Multiple Radio Networks
Many networks can operate in relatively close physical proximity to one
another provided reasonable measures are taken to assure the radio
signal of one Access Point is not directed at the antenna of the second
Access Point.
16 Mercury Reference Manual 05-4446A01, Rev. E
The Network Name and the Association Process
The Network Name is the foundation for building individual radio networks. Remotes in a network with the same network name as an Access
Point (AP) unit are “associated” with that AP.
The use of a different Network Name does not guarantee an interference-free system. It does, however, assure that only data destined for a
unique network is passed through to that network.
Co-Location for
Multiple Networks
It may be desirable to co-locate Access Points at one location to take
advantage of an excellent location that can serve two independent networks. Configure each network with a unique Network Name, and
install each AP’s antenna with at least 10 feet of vertical separation to
minimize RFI.
To co-locate APs, configure them with Time Division Duplex (TDD)
Sync set to
GPS Required. Configure all APs that are within range of each
other with the same pattern, but with a unique Hop Pattern Offset. For
more information, see “Frequency Control Menu” on Page 67.
NOTE: Transceivers are shipped with the Network Name set to
MDS-Mercury as a factory default.
Can radio frequency interference (RFI) disrupt my wireless
network?
When multiple radio networks operate in close physical proximity to
other wireless networks, individual units may not operate reliably under
weak signal conditions and may be influenced by strong radio signals on
adjacent bands. This radio frequency interference cannot be predicted
with certainty, and can only be determined by experimentation. If you
need to co-locate two units, start by using the largest possible vertical
antenna separation between the two AP antennas on the same support
structure. If that does not work, consult with your factory representative
about other techniques for controlling radio frequency interference
between the radios. (See “A Word About Radio Interference” on
Page 170 for more details.)
1.5 GE MDS CYBER SECURITY SUITE
Today, the operation and management of an enterprise is increasingly
dependent on electronic information flow. An accompanying concern
becomes the cyber security of the communication infrastructure and the
security of the data itself.
05-4446A01, Rev. E Mercury Reference Manual 17
The transceiver is capable of dealing with many common security
issues. Table 1-2 profiles security risks and how the transceiver provides a solution for minimizing vulnerability.
Table 1-2. Security Risk Management
Security Vulnerability GE MDS Cyber Security Solution
Unauthorized access to the backbone
network through a foreign remote radio
“Rogue” AP, where a foreign AP takes
control of some or all remote radios and
thus remote devices
Dictionary attacks, where a hacker runs a
program that sequentially tries to break a
password.
Denial of service, where Remote radios
could be reconfigured with bad
parameters, bringing the network down.
Airsnort and other war-driving hackers in
parking lots, etc.
• IEEE 802.1x device authentication
• Approved Remotes List (local)
Only those remotes included in the
AP list will associate
• IEEE 802.1x device authentication
• Approved AP List
A remote will only associate to those
APs included in its local authorized
list of APs
• Failed-login lockdown
After five tries, the transceiver
ignores login requests for 5 minutes.
Critical event reports (traps) are
generated as well.
• Remote login with SSH or HTTPS
• Local console login
• Disabled HTTP and Telnet to allow
only local management services
• Operation is not interoperable with
standard 802.11 wireless cards
• The transceiver cannot be put in a
promiscuous mode
• Proprietary data framing
Eavesdropping, intercepting messages
Unprotected access to configuration via
SNMPv1
Intrusion detection
• AES-128 encryption
• Implement SNMPv3 secure
operation
• Provides early warning via SNMP
through critical event reports
(unauthorized, logging attempts,
etc.)
• Unauthorized AP MAC address
detected at Remote
• Unauthorized Remote MAC
address detected at AP
• Login attempt limit exceeded
(Accessed via: Telnet, HTTP, or
local)
• Successful login/logout
(Accessed via: Telnet, HTTP, or
local)
18 Mercury Reference Manual 05-4446A01, Rev. E
1.6 ACCESSORIES
The transceiver can be used with one or more of the accessories listed in
Table 1-3. Contact the factory for ordering details.
Table 1-3. Accessories
Accessory Description GE MDS
AC Power
Adapter Kit
OmniDirectional
Antennas
Yagi Antenna
(Directional)
GPS Receiving
Antennas
TNC Male-to-N
Female Adapter
TNC Male-to-N
Female Adapter
Cable
Ethernet RJ-45
Crossover
Cable (CAT5)
2-Pin Power
Plug
Ethernet RJ-45
Straight-thru
Cable (CAT5)
EIA-232
Shielded Data
Cable
EIA-232
Shielded Data
Cable
Flat-Surface
Mounting
Brackets &
Screws
Fuse Internal fuse, 5.0 Ampere 29-1784A04
A small power supply module designed for
continuous service. UL approved. Input:
120/220; Output: 13.8 Vdc @ 2.5 A
Rugged antennas well suited for use at Access
Point installations. Consult with your factory
Sales Representative for details
Rugged antennas well suited for use at fixed
Remote sites. Consult with your factory Sales
Representative for details.
A variety of fixed and mobile GPS antennas
(active and passive) are available. Consult with
your factory Sales Representative for details.
One-piece RF adaptor plug. 97-1677A161
Short length of coaxial cable used to connect
the radio’s TNC antenna connector to a Type N
commonly used on large diameter coaxial
cables.
Cable assembly used to cross-connect the
Ethernet ports of two transceivers used in a
repeater configuration.
(Cable length ≈ 3 ft./1M)
Mates with power connector on transceiver.
Screw terminals provided for wires, threaded
locking screws to prevent accidental disconnect.
Cable assembly used to connect an Ethernet
device to the transceiver. Both ends of the cable
are wired identically.
(Cable length ≈ 3 ft./1M)
Shielded cable terminated with a DB-25 male
connector on one end, and a DB-9 female on the
other end. Two lengths available (see part
numbers at right).
Shielded cable terminated with a DB-9 male
connector on one end, and a DB-9 female on the
other end, 6 ft./1.8m long.
Brackets: 2˝ x 3˝ plates designed to be screwed
onto the bottom of the unit for surface-mounting
the radio.
Bracket screws: 6-32/1/4˝ with locking adhesive.
(Industry Standard MS 51957-26)
Part No.
01-3682A02
--
--
--
97-1677A159
(3 ft./1m)
97-1677A160
(6 ft./1.8m)
97-1870A21
73-1194A39
97-1870A20
97-3035L06
(6 ft./1.8m)
97-3035L15
(15 ft./4.6m)
97-1971A03
82-1753-A01
70-2620-A01
05-4446A01, Rev. E Mercury Reference Manual 19
Table 1-3. Accessories (Continued)
Accessory Description GE MDS
DIN Rail
Mounting
Bracket
COM1 Interface
Adapter
Bandpass Filter Antenna system filter that helps eliminate
Ethernet Surge
Suppressor
Bracket used to mount the transceiver to
standard 35 mm DIN rails commonly found in
equipment cabinets and panels.
DB-25(F) to DB-9(M) shielded cable assembly
(6 ft./1.8 m) for connection of equipment or other
EIA-232 serial devices previously connected to
“legacy” units. (Consult factory for other lengths
and variations.)
interference from nearby paging transmitters.
Surge suppressor for protection of Ethernet port
against lightning.
Part No.
03-4022A03
97-3035A06
20-2822A02
29-4018A01
20 Mercury Reference Manual 05-4446A01, Rev. E
TABLETOP EVALUATION
2
2 Chapter Counter Reset Paragraph
Contents
2.1 OVERVIEW ........................................................................... 23
2.2 STEP 1—CONNECT THE ANTENNA PORTS...................... 23
2.3 STEP 2—CONNECT THE PRIMARY POWER ..................... 24
2.4 STEP 3—CONNECT PC TO THE TRANSCEIVER............... 25
2.5 STEP 4—REVIEW TRANSCEIVER CONFIGURATION ....... 25
2.6 STEP 5—CONNECT LAN OR SERIAL DATA EQUIPMENT. 26
AND TEST SETUP
2.5.1 Getting Started ....................................................................... 25
2.5.2 Procedure ............................................................................... 25
2.5.3 Basic Configuration Defaults .................................................. 25
2.6.1 Option Set 1 Connectors ........................................................ 28
2.7 STEP 6—CHECK FOR NORMAL OPERATION ................... 29
05-4446A01, Rev. E Mercury Reference Manual 21
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