Globalstar USA MCM-4M Four Channel Satellite Modem User Manual
Globalstar USA, LLC Four Channel Satellite Modem Users Manual
Users Manual
Globalstar, Inc.
461 South Milpitas Blvd
Milpitas, CA 95035
USA
Globalstar MCM-4M
Single Antenna Multi Channel Modem
Installation & Operation Manual
GS-06-1095 (Preliminary)
Publication Date: 17 January, 2007
Globalstar CAGE Code: 1WSX0
Copyright © Globalstar, Inc., 2007.
All rights reserved
Printed in the United States of America.
Your System Information:
MCM-4M Serial # : _______________________
Antenna Serial # : _______________________
VPN Tunnel Name: _______________________
IP Address: _______________________
Globalstar, Inc.
461 South Milpitas Blvd
Milpitas, CA 95035
USA
The MCM-4M System is manufactured in the United States by CornerTurn, LLC.
TRADEMARKS:
QUALCOMM® is a registered trademark of QUALCOMM Incorporated.
Globalstar™ is a trademark of Globalstar, Inc.
CornerTurn, LLC products are made in the USA
SAFETY ISSUES:
Your Multi Channel Modem System incorporates radio transmitters, receivers,
and an antenna that receives and sends radio frequency (RF) energy.
RADIO FREQUENCY ENERGY
WARNING - The transmitted RF field intensity at the surface of the transmitting antenna is fairly high. Do not use
when someone is within 29 inches (0.74 meters) of the antenna.
COMPLIANCE WITH REGULATIONS
Your Multi Channel Modem has been type approved by the FCC. Nonetheless, RF field intensity at the
surface of the transmitting Globalstar antenna is fairly high.
NCRP Report 86 (1986) National Council on Radiation Protection and Measurements
FCC Radio Frequency Radiation Exposure Limits, 47 CFR Ch. 1 (10-1-98 Edition) Part 1,§1.1310
ANSI/IEEE C95.1-1992 Standard, American National Standards Institute
IRPA (1991) Guidelines on Protection Against Non-Ionizing Radiation, International Radiation
Protection Association
ICNIRP (1996), International Commission on Non-Ionizing Radiation Protection
Globalstar MCM-4M TABLE OF CONTENTS
i
1. Operation......................................................................................................................... 1-1
1.1. Basic Satellite Information...............................................................................................................1-1
1.2. Key Points About Your Equipment.................................................................................................1-1
1.3. System Start-Up From the Multi Channel Modem (MCM-4M).....................................................1-2
1.4. Using Internet Data Services............................................................................................................1-2
1.5. Receiving Incoming Data Calls ........................................................................................................1-3
2. Provisioning the Single Antenna MCM-4M................................................................... 2-1
2.1. Service provisioning .........................................................................................................................2-1
2.2. Roaming Outside of the ‘Home’ Service Area.................................................................................2-1
3. Installation....................................................................................................................... 3-2
3.1. Components of the System...............................................................................................................3-2
3.2. Planning Where to Position the Components ..................................................................................3-3
3.2.1. Site Selection...........................................................................................................................3-3
3.2.2. Single Piece Antenna ...............................................................................................................3-3
3.2.3. Multi Channel Modem (MCM-4M)..........................................................................................3-4
3.2.4. Remote Client Terminals and Other Networking Equipment ..................................................... 3-4
3.3. Preparing for Installation ................................................................................................................3-4
3.3.1. Inventory.................................................................................................................................3-4
3.3.2. Other Materials Needed............................................................................................................3-4
3.4. Antenna Installation.........................................................................................................................3-4
3.5. Multi Channel Modem (MCM-4M) Installation..............................................................................3-5
3.6. RJ-45 Ethernet Cable Routing.........................................................................................................3-6
3.7. Turn Power ON................................................................................................................................3-6
3.8. Install and Setup Remote Client Equipment ...................................................................................3-6
3.8.1. To configure remote client terminals with MS Windows XP operating system...........................3-6
3.8.2. To configure remote client terminals with MS Windows 2000 operating system........................3-9
3.8.3. To configure remote client terminals with MS Windows 98 operating system; ........................ 3-11
4. Cascaded MCM-4M Set-up ............................................................................................ 4-1
4.1. Multi Channel Modem (MCM- 4e) Cascaded Set-up Front Panel..................................................4-1
5. Troubleshooting............................................................................................................... 5-1
5.1. General Troubleshooting .................................................................................................................5-1
5.2. Other Problems................................................................................................................................5-1
5.2.1. Problem: ..................................................................................................................................5-1
5.2.2. Problem: ..................................................................................................................................5-1
5.2.3. Problem: ..................................................................................................................................5-2
6. Specifications................................................................................................................... 6-1
6.1. Power Specifications.........................................................................................................................6-1
6.2. Operating Frequencies.....................................................................................................................6-1
6.3. Mechanical Specifications................................................................................................................6-1
6.4. Environmental Specifications ..........................................................................................................6-1
7. Drawings.......................................................................................................................... 7-1
List of Figures
Globalstar MCM-4M TABLE OF CONTENTS
ii
Figure 1-1 MCM-4M being used to connect to the Internet .......................................... 1-2
Figure 1-2 MCM-4M Multi Channel Modem – Front Panel ......................................... 1-2
Figure 3-1 MCM-4M Remote Client Terminal Configuration....................................... 3-2
Figure 3-2 MCM-4M Single Piece Antenna Installation................................................ 3-4
Figure 3-3 MCM-4M Rear Panel................................................................................... 3-5
Figure 3-4 MCM-4M Front Panel.................................................................................... 3-5
Figure 4-1 MCM-4M 2 Unit Cascaded Front Panel....................................................... 4-1
Figure 4-2 MCM-4M 3 Unit Cascaded Front Panel....................................................... 4-1
Figure 4-3 MCM-4M 4 Unit Cascaded Front Panel....................................................... 4-2
Globalstar MCM-4M OPERATION
1-1
1. Operation
Your Multi Channel Modem System is easy to use, versatile, and dependable. When configured properly, all
4 channels can be combined to provide an aggregate Internet connection equivalent to a 28 Kbps modem.
If two, three or 4 units are available and configured for cascaded operations you can achieve an aggregate
Internet connection equivalent to a 112 Kbps modem. Internet access is available in all Globalstar™
network data services coverage areas except those for China and Nicaragua.
WARNING - The transmitted RF field intensity at the surface of the transmitting antenna is
fairly high. Do not use when someone is within 29 inches (0.74 meters) of the antenna.
1.1. Basic Satellite Information
Globalstar satellites operate in an inclined orbit of 52 degrees. They come up over a point on the
western horizon, move across the sky, and then drop behind the eastern horizon. The average user
cannot predict the path of the satellites. Each satellite will pass from horizon to horizon in about 10-15
minutes. When the MCM-4M is located in moderate latitudes (22-52 degrees) it will communicate with
at least TWO satellites passing over your geographic location.
This system uses high frequency microwave signals. Unlike television and AM or FM radio signals, or
even cellular phone signals, microwave radio signals do not bend and are strictly line of sight. This
means that these signals do not go through, or around, dense objects including the platform’s own
superstructure, wings or masts. It can not go through, or around, other objects adjacent to the
platform either (trees, buildings, overhangs, cranes, tall hills or mountains). If something gets between
the satellite and the antenna the data connection won’t work until another satellite (which is not
blocked) is received or the platform moves to a location where your antenna will no longer be blocked
by the object. If the antenna is no longer pointed up toward the overhead location of the satellites, the
data connection won’t work until the antenna has a clear view of the sky above again.
If the MCM-4M antenna’s view of the sky above 10o elevation is restricted, the unit will suffer
temporary data rate reductions. If the antenna is completely blocked, the signal to/from the satellite
will be lost until the signal path is unobstructed.
1.2. Key Points About Your Equipment
The MCM-4M provides you with data access over the Globalstar satellite network. In some
geographic areas setup, configuration and usage may be slightly different. Subject to certain constraints,
the MCM-4M is capable of dial up packet or asynchronous operation in any Globalstar service area.
These constraints, and the service limitations, are described in Section 2.
The MCM-4M provides the ability to establish up to four concurrent satellite connections each
providing 7.2 Kbps of raw symmetrical bandwidth. The MCM-4M provides the combined bandwidth
to the user via a single standard Ethernet connection. The MCM-4M is a full duplex device and can be
configured to allow other data terminals to initiate a data communications connection. For this
purpose, any of the four SDMs may be configured to receive an incoming asynchronous data call from
a PSTN modem. The MCM-4M unit can be connected to up to 3 additional MCM-4M units to
provide the combined bandwidth of up to sixteen concurrent satellite connections.
The MCM-4M requires connection to an Antenna Assembly to be mounted on an external surface.
The MCM-4M contains an Multi-Channel Processor board and four QUALCOMM GSP-1620 Satellite
Data Modems (SDM). The MCM-4M also includes an Ethernet 10 Base-T port, power supplies,
converters, and management functions.
Globalstar MCM-4M OPERATION
1-2
The 10/100 BaseT Ethernet port can be connected to multiple remote client terminals through a
suitable hub or switch. It provides the path through the Globalstar network for your remote client
terminal(s) to communicate. Your connection may be to a public server site or you may be connected
to a private site such as a Virtual Private Network (VPN).
In normal operation the MCM-4M provides you with a PATH to and from the Internet, which allows
your mobile platform to be connected without having wires attached to it. You operate the remote
client terminal exactly the same way you would if it were connected to any other Ethernet LAN. When
the MCM-4M is operating normally, it provides the path to and from the Internet and will be
transparent to you. Refer to figure 2-1 for an overview of the satellite connection.
Figure 1-1 MCM-4M being used to connect to the Internet
1.3. System Start-Up From the Multi Channel Modem (MCM-4M)
Figure 1-2 MCM-4M Multi Channel Modem – Front Panel
1.4. Using Internet Data Services
To set up the PC computer for data service use, refer to section 4.
1. To use the Internet Data services for Internet browsing, email and file transfers, open your
Internet browser, email or other data program and proceed by operating that program as you
normally would to browse, email or efax. Please refer to the accompanying Software and User
Documentation for instructions on how to operate the MCM-4M and to turn the tunnel on.
Globalstar MCM-4M OPERATION
1-3
When finished
Close your Internet browser, email or other data program.
1.5. Receiving Incoming Data Calls
The MCM-4M can receive incoming asynchronous data calls from a PSTN modem.
For simple connectivity (in either the ‘stand-alone’ mode or ‘VPN tunnel’ mode) the establishment of
the incoming asynchronous data call to the MCM-4M can be used to convey the application data
between the originating terminal within the customer’s private data network and the remote terminal
attached to the MCM-4M.
When used in conjunction with the VPN mode, the asynchronous data call to the MCM-4M
can be used to force the MCM-4M to initiate the VPN tunnel back to the customer’s private
TCP/IP data network. In this way, the full bandwidth of the VPN tunnel may be used to
transfer large data files more quickly. Once the VPN tunnel has been opened and the data
transfer commenced the PSTN data call can be released.
Globalstar MCM-4M INSTALLATION
2-1
2. Provisioning the Single Antenna MCM-4M
2.1. Service provisioning
Each of the four SDMs requires a Globalstar subscription. Note: The Globalstar subscription for each
SDM includes the provision of a telephone number that also allows each SDM to receive incoming
asynchronous data calls.
2.2. Roaming Outside of the ‘Home’ Service Area
Prior to delivery, the MCM-4M will have been configured to operate within the Globalstar service area
designated to be you’re the ‘home’ service area.
In addition to being able to operate anywhere within the designated ‘home’ service area, the MCM-4M
is capable of operating within any Globalstar service area with which your Globalstar service provides
roaming capabilities.
Although the MCM-4M has the inherent capability of operating within any Globalstar gateway, it may
require some minor user configuration changes if it is subsequently required to operate within another
Globalstar service area. Some Globalstar gateways support both ‘packet data’ calls and ‘asynchronous
data’ calls while other Globalstar service areas support only ‘asynchronous data’ calls. The MCM-4M
was designed to operate in ‘Packet Data’ mode. The MCM-4M can operate in a Globalstar service area
that only supports the ‘asynchronous data’ mode, but at a lower data rate
Notes: For current details of Globalstar’s ‘packet data’ and ‘asynchronous data’ service areas,
refer to Globalstar’s web site at http://www.globalstar.com/pages/coverage.html
A call is disconnected when the subscriber leaves the service area of the Globalstar gateway controlling
the call. Although ‘in-call hand-overs’ between neighboring service areas are not supported on the
Globalstar system, the MCM-4M has the ability to maintain any VPN tunnels having more than one
Internet connection as the MCM-4M enters the neighboring service area. SDMs will disconnect and be
automatically reconnected by the MCM-4M to the Globalstar gateway controlling the neighboring
service area at different times. Thus, the VPN tunnel is likely to remain established (albeit with reduced
bandwidth through the transition period as each satellite modem connection is re-connected via the
Globalstar gateway serving the new service area).
Because certain Globalstar gateways have implemented Network Address Port Translation (1-N
NAPT) while others have implemented 1-1 Network address translation, the user of the MCM-4M
should ensure that the VPN tunnel does not use the IP(in IP) transport but instead uses TCP transport
within Globalstar areas where Network address port translation (1-N NAPT) is performed.
Globalstar MCM-4M INSTALLATION
3-2
3. Installation
This section explains the installation of the components of the Multi Channel Modem System and includes
some details about the installed equipment.
Good planning of the installation will provide the best results. Below is some guidance on issues that are
important to consider when planning the installation. The major steps in the installation and setup process
are as follows:
1. Planning locations of the components
2. Preparing for the installation
3. Equipment and cable installation
4. Initial power-up and checkout
3.1. Components of the System
Figure 3-1 MCM-4M Remote Client Terminal Configuration
The system is shipped comprised of the following items:
1. Antenna –It is essential that the Antenna has a clear hemispheric view of the overhead sky
above the platform from about 10 degrees above the horizon.
2. Multi Channel Modem (MCM-4M) – The Multi Channel Modem contains the Multi-channel
processor board and four QUALCOMM GSP-1620 Satellite Data Modems (SDM). The
MCM-4M also includes an Ethernet 10/100 Base-T port, power supplies, converters and
provides the management functions. The MCM-4M is connected to the Antenna by two 30
foot coaxial and one 30 foot antenna power cable. The primary power supply is provided
with the unit. The power supply provided is a 110 VAC 60 Hz unit with standard wall
socket grounded plug.
MCM-4M FRONT MCM-4M REAR
10 Base T Ethernet Cable
Remote
Client
Terminals
R
ec
ei
ve
Tr
an
s
mi
A
nt
P
o
Globalstar MCM-4M INSTALLATION
3-3
You will need to provide the following items:
1. PC Computer/LAN Components and cables – The Remote Client Terminals, hub/switch,
RJ-45 Ethernet cables.
3.2. Planning Where to Position the Components
Determine where to position the components, how the cables will be routed and that the furnished
cable lengths will be adequate.
3.2.1. Site Selection
Choosing the best mounting location on smaller platforms, where there are fewer possible locations
to choose from, is frequently a compromise. The “best” location for the antenna is the one that has
no blockage and is not in close proximity to other electronics or antennas that may interfere with the
MCM-4M or that the MCM-4M will interfere with.
Sometimes there are situations that you just can’t get around. In that case, do the best you can. At
moderate latitudes (between latitude 22 degrees and 52 degrees) there will always be two satellites
visible at any location. If an object blocking the antenna’s view of the sky is small (that is, blocks
only a small part of the sky), it should not cause an outage.
3.2.2. Single Piece Antenna
Determine the optimum mounting location, on top of the platform for the Antenna. Certain types
of antennae used with Global Positioning Satellite (GPS) receivers do not have the appropriate
band-pass filter (14.75MHz – 16.75MHz) fitted before the pre-amplifier stage. Use of this type of
antennae may cause a GPS receiver to be susceptible to interference from the MCM-4M. Where it
is found that a GPS receiver is experiencing interference from the MCM-4M, the distance between
the GPS antenna and the MCM-4M should be increased (by relocating one or both). If no suitable
alternative location can be found for either the GPS antenna or the MCM-4M, the GPS antenna
should be replaced with one that includes the appropriate band-pass filter. The MCM-4M should
be installed where:
The antenna has a clear line-of-sight view to as much of the sky above the antenna as is
practical, down to an elevation of 10 degrees above the horizon. Choose a location where
masts or other structures do not block the satellite signal from the antenna as the platform
turns.
The antenna is at least 5 feet away from other transmitting antennas (HF, VHF, GPS and
radar) that may generate signals which interfere with the Antenna, or that the Antenna may
interfere with. Although radio and radar interference is not common, the further away the
Antenna is from these other antennas, the less impact their operation could have on it.
The Antenna assembly should be rigidly mounted to the platform. If necessary, reinforce the
mounting area to assure that it does not flex due to platform motion or vibration
Globalstar MCM-4M INSTALLATION
3-4
3.2.3. Multi Channel Modem (MCM-4M)
The Multi Channel Modem Unit can be mounted in a 19 inch equipment rack or used as a table top
unit. The system is supplied with 30 foot transmit and receive coaxial cables and a 30 foot power
cable for the remote powered antenna. A 110 VAC 60 Hz power supply and associated power cable
to the unit is also provided.
3.2.4. Remote Client Terminals and Other Networking Equipment
All other equipment should be mounted in suitable locations per the individual customer’s
requirements.
3.3. Preparing for Installation
3.3.1. Inventory
Check the contents of the MCM-4M System package to assure all items on the packing list are
received.
3.3.2. Other Materials Needed
Because each installation is different, some materials and supplies will need to be provided by the
installer. These includes screws to mount any additional items, PC Computer(s), LAN components
and associated interconnecting cables for these devices also must be provided.
3.4. Antenna Installation
After you have planned where the components will be installed, the cable routing paths and have
inventoried all of the installation materials you will be ready to begin the installation.
Note: 1. Although the MCM-4M itself does not require any unique technical knowledge to install, the
selection of the optimum route for the cabling the Multi Channel Modem (MCM) and the
preparation of any cable-entry glands is best carried out by an experienced equipment installer.
Note: 2. If the MCM-4M is to be installed on an aircraft, it is recommended that only experienced
technicians install the Antenna cabling.
Figure 3-2 MCM-4M Single Piece Antenna Installation
Globalstar MCM-4M INSTALLATION
3-5
Prepare the mounting surface and mount the Antenna.
1. Drill the mounting holes and cable passage in the mounting surface. The mounting hole may be
clear drilled or drilled and tapped.
2. Apply one drop of Locktite to the threads on the end of each of the 4 screws.
3. Mount the Antenna from the outside surface of the platform using the four screws provided. If
the mounting holes were drilled & tapped, tighten the 4 mounting screws. If the mounting holes
were clear drilled attach hex nuts from inside the platform and tighten. An o-ring gasket is provided
with the Antenna; however, silicone sealant (or other gasket material) may also be used if desired.
4. From inside the platform route the 30 foot Transmit (red marker) and Receive coaxial (blue
marker) Cables and antenna power cable to the location where the MCM-4M will be installed.
5. Connect the Transmit coax to the TX connector of the Antenna. Connect the Receive Coax to
the RX connector on the Antenna. Connect the antenna power cable to the Antenna.
3.5. Multi Channel Modem (MCM-4M) Installation
Figure 3-3 MCM-4M Rear Panel
1. Install the MCM-4M in its preferred location.
At the MCM-4M Rear Panel
2. Connect the Receive Antenna coax to the RECEIVE connector on the MCM-4M.
3. Connect the Transmit Antenna coax to the TRANSMIT connector on the MCM-4M.
4. Connect the Power Antenna cable to the ANTENNA POWER connector on the MCM-4M.
5. Connect AC power cord to the 12 VDC Power Supply and connect the power supply to the 12
VDC input connector on the MCM-4M.
6. Route the Primary Power supply cable to the planned location of the AC Power.
WARNING
- Do NOT connect, or disconnect, any of the coaxial cables to the MCM-4M while
system power is ON. Assure that system power is OFF prior to connecting, or disconnecting, these
cables.
Figure 3-4 MCM-4M Front Panel
Globalstar MCM-4M INSTALLATION
3-6
At the MCM-4M Front Panel
7. Route Ethernet Cable to planned locations of remote client equipment.
8. Connect the Ethernet cable to clients as necessary. The MCM-4M provides one 10/100 Base-T
Ethernet (RJ45) port (ETHERNET on front panel). Category 5 (Cat 5) unshielded twisted pair
(UTP) cabling will be required to be run between the MCM and remote client terminal.
3.6. RJ-45 Ethernet Cable Routing
Route the CAT5 RJ-45 Ethernet cable from the PC computer/LAN hub, or switch, through the
platform as needed to connect planned equipment.
3.7. Turn Power ON
On MCM-4M front panel Turn power ON.
The system will initialize and automatically acquire satellite signals, if the antenna is not blocked.
3.8. Install and Setup Remote Client Equipment
Continue with the installation and setup of any remote client terminals. This section assumes that the
computers that will be used as the remote client terminals already have a LAN card and all required
software (Operating System, drivers and Networking software) installed and configured in them.
Therefore, the “Setup” instructions below are designed to have a remote client terminal automatically
obtain an IP address.
The remote client terminals attached to the MCM-4M should have their IP stack configured to use
Dynamic Host Configuration Protocol (DHCP) to obtain their IP address.
If you need to configure the remote client terminal(s) for specific IP Address or sub-address contact
your Network Administrator for assistance in setting up the terminal(s).
Your screen may look different that the ones shown below.
3.8.1. To configure remote client terminals with MS Windows XP operating system
1 Click on ‘
Start
’
2 Select ‘
Control panel’
Globalstar MCM-4M INSTALLATION
3-7
3 Click on the
‘Network and Internet
Connections
’ icon
4 Click on the
‘Network Connections
’ icon in the
bottom portion of the screen
5 Double click on the ‘Local
Area Connection
’
icon
Globalstar MCM-4M INSTALLATION
3-8
6 Click the ‘
Properties
’ box
7 Scroll down the This connection uses the
following items list and select the ‘
Internet
Protocol (TCP/IP)
‘ item
8 Click the ‘
Properties
’ box
9 Select the radio button to ‘
Obtain an IP address
automatically
’
10 Click on ‘
OK
’.
11 Close all other previously opened dialogue
windows.
Globalstar MCM-4M INSTALLATION
3-9
3.8.2. To configure remote client terminals with MS Windows 2000 operating system
1 Click on ‘
Start
’
2 Select ‘
Settings
’
3 Select ‘
Control pane
l’
4 Double click on the
'Network and Dial-up
Connections
' icon
5 Double click on the '
Local Area Connection
'
icon
Globalstar MCM-4M INSTALLATION
3-10
6 Click the ‘
Properties
’ box
7 Scroll down the Components checked are used by
this connection list and select the ‘
Internet
Protocol (TCP/IP)
‘ item
8 Click the ‘
Properties
’ box
9 Select the radio button to ‘
Obtain an IP address
automatically
’
10 Click on ‘
OK
’.
11 Close all other previously opened dialogue
windows.
Globalstar MCM-4M INSTALLATION
3-11
3.8.3. To configure remote client terminals with MS Windows 98 operating system;
1 Click on ‘
Start
’
2 Select ‘
Settings
’
3 Select ‘
Control pane
l’
4 Double click on the ‘
Network
’ icon
5 Select the ‘
Configuration
’ tab
6 Scroll down the “The following network
components are installed” list and select the
‘
TCP/IP
’ PC Ethernet LAN card entry item
7 Click the ‘
Properties
’ box
Globalstar MCM-4M INSTALLATION
3-12
8 Select the ‘
IP Address
’ tab,
9 Select the radio button to ‘
Obtain an IP address
automatically’
10 Click on ‘
OK
’.
11 Close all other previously opened dialogue
windows.
Globalstar MCM-4M GENERAL TROUBLESHOOTING
4-1
4. Cascaded MCM-4M Set-up
1. Follow instruction above in Section 3.5 MCM-4M Installation for up to 4 MCM-4M units.
2. Install the second, third or fourth MCM-4M units in the preferred location within 12 inches of the
previous MCM-4M unit. (see figure 4-1)
3. At the front panel of the MCM-4M units Install an Ethernet “Crossover” cable into the Cascade
Ethernet to the subsequent unit Ethernet connector between all operational units as shown in
Figures 4.1, 4.2, 4.3.
4. Set the “Thumbwheel Switch” to position 1 on the primary MCM-4M Unit.
5. Set the “Thumbwheel Switch” to position 2, 3 or 4 on the subsequent MCM-4M Units depending
on how many units are cascaded.
6. Route Ethernet Cable to planned locations of remote client equipment from the Primary MCM-4M
unit. The Ethernet port on the secondary MCM-4M units must be left open. Do not connect an
Ethernet cable to the secondary units while in cascade operations.
7. Turn on power to all operational units. Primary unit will auto configure secondary units to use all
modems after a short initialization time(30-45 seconds)
4.1. Multi Channel Modem (MCM- 4M) 2 Unit Cascaded Set-up Front Panel
Figure 4-1 MCM-4M 2 Unit Cascaded Front Panel
4.2. Multi Channel Modem (MCM- 4M) 3 Unit Cascaded Set-up Front Panel
Figure 4-2 MCM-4M 3 Unit Cascaded Front Panel
Globalstar MCM-4M GENERAL TROUBLESHOOTING
4-2
4.3. Multi Channel Modem (MCM- 4M) 4 Unit Cascaded Set-up Front Panel
Figure 4-3 MCM-4M 4 Unit Cascaded Front Panel
Globalstar MCM-4M GENERAL TROUBLESHOOTING
5-1
5. Troubleshooting
CAUTION
- Allow only authorized personnel to install or service the Multi Channel Modem
System components.
5.1. General Troubleshooting
For other assistance contact your MCM-4M Technical Support Person (list below for future reference).
Name: _________________________________ Phone ______________________
Problem Solution
Front Panel LCD not illuminated,
MCM-4M Fans not running 1 Verify Power switch on MCM-4M Front Panel is set to ON.
2 Check Power Supply connections and verify 110 VDC service is operational.
5.2. Other Problems
This section assumes that the reader is familiar with using MS-DOS prompt PING commands (ICMP
messages) to test the responsiveness of network elements any intervening connections Troubleshooting
the MCM-4M.
5.2.1. Problem:
”None of my remote client terminals are able to browse the World Wide Web”.
1. Ping (continuous) the IP address of the browser’s proxy server. Stop the test after 45
seconds. If PING replies were received, then check the Browser’s proxy setting and retry.
If the PINGs were not replied to, then go to step 2.
2. PING the IP address of the MCM-4M. If the PINGs were not responded to then go to
step 3. If the PINGs were responded to go to step 5.
3. Check that the Multi Channel Modem (MCM-4M) unit is being supplied with main power
if ON then go to step 4. If OFF, restore main power to the MCM-4M and retest.
4. Interact with the MCM-4M, using the HyperTerminal facility (contact your Technical
Support Person). If the PINGs are not replied then go to step 5. If prompted for
Username and password, then go to step 5.
5. The problem may due to an internal failure of the MCM-4M.
6. Contact you Technical Support person.
5.2.2. Problem:
”I can’t reach a particular VPN destination (but I can reach other VPN destinations or I can
browse the World Wide Web)“.
1. Ping (continuous) the FIXED IP address of the browser’s proxy server. Stop the test after
45 seconds. If PING replies were received, then the problem is likely to be somewhere at
the other end of the VPN tunnel. However, whether the PINGs were replied to or not,
contact your Technical Support person.
Globalstar MCM-4M GENERAL TROUBLESHOOTING
5-2
5.2.3. Problem:
“Browsing to destinations the World Wide Web is slower than usual”.
1. Contact your Technical Support person.
Globalstar MCM-4M SPECIFICATIONS
6-1
6. Specifications
6.1. Power Specifications
Power source 115VAC
Power consumption 60 Watts maximum
6.2. Operating Frequencies
Transmit 1610-1626.5 MHz
Receive 2483.5-2500 MHz
6.3. Mechanical Specifications
Antenna
Height 8.83 inches
Width 4.12 inches
Length 8.87 inches
Weight 4.5 lbs
Multi Channel Modem
Height 1.75 inches
Width 17.12 inches
Depth 17.25 inches
Weight 8.0 lbs
6.4. Environmental Specifications
Operating temperature –30 to +60 degrees C
Storage temperature –40 to +85 degrees C
Humidity 100% non-condensing
Globalstar MCM-4M DRAWINGS
7-1
7. Drawings
Drawing Description
ANCT0601-001 MCM-4M Parts List ...........................................................................7-2
ANCT0601-001 MCM-4M Front and Rear Panel........................................................7-3
ANCT0601-001 MCM-4M Top and Side View ............................................................7-4
ANCT0601-001 MCM-4M Top View Cover Removed ................................................7-5
ANCT0601-001 MCM-4M Cable DWG – Modem Data/Cntl Ports to MCP CCA.....7-6
ANCT0601-001 MCM-4M RF Cable Diagram ............................................................7-7
ANCT0601-001 MCM-4M Chassis and Power Supply Wiring Diagram....................7-8
ANCT0601-029 MCM-4M External RF Cable Drawing .............................................7-9
ANCT0601-030 MCM-4M Antenna Power Cable Drawing ......................................7-10
Globalstar MCM-4M DRAWINGS
7-2
ANCT0601-001 MCM-4M Parts List
Globalstar MCM-4M DRAWINGS
7-3
ANCT0601-001 MCM-4M Front and Rear Panel
Globalstar MCM-4M DRAWINGS
7-4
ANCT0601-001 MCM-4M Top and Side View
Globalstar MCM-4M DRAWINGS
7-5
ANCT0601-001 MCM-4M Top View Cover Removed
Globalstar MCM-4M DRAWINGS
7-6
ANCT0601-001 MCM-4M Cable DWG – Modem Data/Cntl Ports to MCP CCA
Globalstar MCM-4M DRAWINGS
7-7
ANCT0601-001 MCM-4M RF Cable Diagram
Globalstar MCM-4M DRAWINGS
7-8
ANCT0601-001 MCM-4M Chassis and Power Supply Wiring Diagram
Globalstar MCM-4M DRAWINGS
7-9
ANCT0601-029 MCM-4M External RF Cable Drawing
Globalstar MCM-4M DRAWINGS
7-10
ANCT0601-030 MCM-4M Antenna Power Cable Drawing