COBHAM Sea Tel Dual Antenna Arbitrator User manual

Sea Tel, Inc.
(trading as Cobham SATCOM)
4030 Nelson Avenue
Concord, CA 94520
Tel: [phone]
Fax: [phone]
Thrane and Thrane A/S
(trading as Cobham SATCOM)
Lundtoftegaardsvej 93 D, 2800 Kgs.
Lyngby, Denmark
Tel: [phone]
Fax: [phone]
Web: http://www.cobham.com/satcom Email: [e-mail]
September 1, 2015 Document No. 99-147741
Sea Tel
Dual Antenna Arbitrator (MXP systems)
Installation M
anual

Dual Antenna Arbitrator (MXP)
ii
These commodities, technology, or software were exported from the United
States in accordance with the Export Administration Regulations. Diversion
contrary to U.S. law is prohibited.
Sea Tel Marine Stabilized Antenna systems are manufactured in the United
States of America.
Sea Tel is an ISO 9001:2008 registered company. Certificate Number 13690
originally issued on March 14, 2011 and renewed / reissued on March 10, 2014.
R&TTE
CE
The Sea Tel Media Xchange Point™ (MXP) Antenna Control Unit, used with this Sea Tel Dual Antenna
Arbitrator and the Sea Tel Antenna complies with the requirements for Radio and Telecommunication
Terminal Equipment. A copy of the R&TTE Declaration of Conformity for this equipment is contained
in the Antenna Manual for your system.
The Sea Tel Media Xchange Point™ (MXP) Antenna Control Unit, used with this Sea Tel Dual Antenna Arbitrator,
contains FCC compliant supervisory software to continuously monitor the pedestal pointing accuracy and use it
to control the “Transmit Mute” function of the satellite modem to satisfy the provisions of FCC 47 C.F.R. §
25.222(a)(l)(iii). A copy of the FCC Declaration of Conformity for this equipment is contained in the Antenna
Manual for your system.
Copyright Notice
Copyright © 2015 Sea Tel Inc. All Rights Reserved.
The information contained in this document is proprietary to Sea Tel, Inc. This document may not be reproduced or
distributed in any form, without prior written consent of Sea Tel, Inc. The information in this document is subject to
change without notice. Sea Tel Inc. is also doing business as Cobham SATCOM.

Dual Antenna Arbitrator (MXP)
iii
Revision History
REV ECO# Date Description By
A
August 6, 2015
Production Release
MDN

Table of Contents Dual Antenna Arbitrator (MXP)
v
1. INTRODUCTION ..........................................................................................................................................................................................1-1
1.1. DUAL ANTENNA CONFIGURATION............................................................................................................................................................. 1-1
1.2. DUAL ANTENNA ARBITRATOR.....................................................................................................................................................................1-1
1.3. AUTOMATIC BEAM SWITCHING (ABS).................................................................................................................................................... 1-1
1.4. OPENAMIP™..................................................................................................................................................................................................1-1
1.5. FCC COMPLIANCE......................................................................................................................................................................................... 1-2
2. FRONT PANEL OPERATION ..................................................................................................................................................................2-1
2.1. FRONT PANEL BUTTONS...............................................................................................................................................................................2-1
2.2. FRONT PANEL LEDS...................................................................................................................................................................................... 2-1
2.3. AUTOMATIC MODE....................................................................................................................................................................................... 2-1
2.4. MANUAL MODE .............................................................................................................................................................................................2-2
3. REMOTE OPERATION ...............................................................................................................................................................................3-1
3.1. AUTOMATIC BEAM SWITCHING (ABS).................................................................................................................................................... 3-1
3.2. OPEN ANTENNA-MODEM INTERFACE PROTOCOL (OPENAMIP™) SPECIFICATION:........................................................................ 3-1
3.2.1. Overview: ........................................................................................................................................................................................3-1
3.2.2. Interface requirements:.........................................................................................................................................................3-2
3.3. DUAL ANTENNA ARBITRATOR COMMAND SUMMARY ........................................................................................................................... 3-2
3.3.1. Command Details......................................................................................................................................................................3-3
3.3.2. General Notes..............................................................................................................................................................................3-5
4. DUAL ANTENNA INSTALLATION.....................................................................................................................................................4-1
4.1. UNPACKING AND INSPECTION .................................................................................................................................................................... 4-1
4.2. INSTALL THE DUAL ANTENNA ARBITRATOR............................................................................................................................................. 4-1
4.3. SHIPBOARD CABLE INSTALLATION ............................................................................................................................................................. 4-1
4.4. CONNECTING THE BELOW DECKS EQUIPMENT........................................................................................................................................ 4-1
4.5. DUAL ANTENNA ARBITRATOR CONNECTIONS......................................................................................................................................... 4-4
4.6. MXP CONNECTIONS..................................................................................................................................................................................... 4-4
4.7. SET-UP .............................................................................................................................................................................................................4-5
4.7.1. IP Address Setting.....................................................................................................................................................................4-5
4.7.2. MXP Tracking Settings............................................................................................................................................................4-5
4.7.3. MXP Targeting.............................................................................................................................................................................4-5
4.7.4. MXP Blockage Zones...............................................................................................................................................................4-5
4.7.5. Balancing TX Output ................................................................................................................................................................4-5
4.8. TESTING ARBITRATOR SWITCHING............................................................................................................................................................ 4-5
5. SETUP..................................................................................................................................................................................................................5-1
5.1. DEFAULT PARAMETER SETTINGS:............................................................................................................................................................... 5-1
5.2. BALANCING TX OUTPUT.............................................................................................................................................................................. 5-1
6. FUNCTIONAL TESTING ..........................................................................................................................................................................6-1
6.1. TEST DUAL ANTENNA ARBITRATOR -MANUAL MODE........................................................................................................................ 6-1
7. TROUBLESHOOTING & MAINTENANCE......................................................................................................................................7-1
7.1. ISOLATING IF &RF PROBLEMS: .................................................................................................................................................................. 7-1
7.2. GPS PROBLEMS:..............................................................................................................................................................................................7-1
7.3. NETWORK LOCK PROBLEMS:......................................................................................................................................................................... 7-1
7.4. TX MUTE PROBLEMS:....................................................................................................................................................................................7-2
8. SLIDE RAIL KIT (OPTIONAL) INSTALLATION.........................................................................................................................8-1
8.1. ASSEMBLING THE OUTER RAILS.................................................................................................................................................................. 8-1
8.2. MOUNTING THE OUTER RAILS IN THE RACK............................................................................................................................................ 8-1
8.3. MOUNTING THE INNER RAILS ..................................................................................................................................................................... 8-1
8.4. MOUNTING THE ARBITRATOR INTO YOUR RACK .................................................................................................................................... 8-1
9. SPECIFICATIONS........................................................................................................................................................................................9-1
9.1. GENERAL ..........................................................................................................................................................................................................9-1
9.2. FRONT PANEL.................................................................................................................................................................................................. 9-1

Dual Antenna Arbitrator (MXP) Table of Contents
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9.3. REAR PANEL.....................................................................................................................................................................................................9-1
9.3.1. AC POWER ....................................................................................................................................................................................9-1
9.3.2. Switch Plate -Standard Low Power...............................................................................................................................9-1
9.3.3. Switch Plate -10 MHz Option ..........................................................................................................................................9-2
9.3.4. Switch Plate -High Power Option ..................................................................................................................................9-3
9.4. COMPLIANCE...................................................................................................................................................................................................9-4
9.5. ENVIRONMENTAL CONDITIONS...................................................................................................................................................................9-4
10. DRAWINGS...................................................................................................................................................................................................10-1
10.1. DUAL ANTENNA ARBITRATOR DRAWINGS.............................................................................................................................................10-1

Introduction Dual Antenna Arbitrator (MXP)
1-1
1. Introduction
The Dual Antenna Arbitrator is to be used with two complete Sea Tel Transmit/Receive (TX/RX) satellite communication
systems. The primary purpose of the Dual Antenna Arbitrator is to switch services from one antenna, which has become
blocked by the ships structure or has otherwise lost service, to the other antenna. Switching services to the satellite modem
under these conditions greatly improves on-air time by reducing the out of service time.
Additionally, this device allows for remote monitor, control and diagnostics directly or with Out of Band Management
(OBM) device(s).
1.1. Dual Antenna Configuration
Sometimes, due to very large blockage conditions, you may need to install a dual antenna configuration to provide
virtually uninterrupted services. Two full antenna systems are installed and the two ACU control outputs are
connected to a dual antenna arbitrator switch panel which then is connected to the satellite modem, and other
below decks equipment if provided. Refer to the appropriate installation chapter for the model of the Sea Tel
antenna systems that you will be installing this arbitrator panel with.
You will program the blockage zone(s) and optimize all other settings for best “on-satellite” performance for each
of the two Sea Tel antennas.
The following signals pass through the arbitrator to/from the ACU’s and the Satellite Modem:
•TX IF signal to the active (selected) antenna from the Satellite Modem. 10 MHz reference is also passed
when provided by the modem.
•RX IF from the active (selected) antenna to the Satellite Modem
•Blockage control output from each ACU – this output provides signal to the arbitrator when the antenna
it is connected to is not available for services.
•GPS position -output from the active (selected) antenna (this setting can be changed in the arbitrator).
•Network Lock signal from the Satellite Modem is routed to both ACU’s to enable both antennas to track
the same satellite.
When one antenna is blocked, its blockage output will command the arbitrator panel to switch services for the
modem from that antenna to the other antenna. The arbitrator panel provides a logic latch to prevent excess
switching when the ship heading is yawing, therefore, causing either antenna to be repeatedly blocked –
unblocked – blocked.
1.2. Dual Antenna Arbitrator
The Dual Antenna Arbitrator panel automatically switches the signal from one of the two antennas. It can pass
LNB voltages (and handle 250-400 ma of current) and all of the typical RX IF and M&C signals on the RX
connections.
DC Voltage to power the BUC(s) should NOT be passed through this arbitrator panel, nor the dual channel coax
rotary joint of the antenna pedestal. BUC power should be supplied on the Antenna Pedestal.
TX IF and Reference signals can be passed through the dual antenna arbitrator.
The blockage (SW2) output, GPS output and Modem lock input from the two terminal mounting strips (antenna
“A” and antenna “B”) are wired through the arbitrator panel to the satellite modem. When antenna “A” is blocked,
the arbitrator PCB will toggle the coax switches so that antenna “B” provides signal to the satellite modem. When
antenna “A” is no longer blocked the arbitrator will do nothing (because it is a latch circuit). When antenna “B” is
blocked the panel will switch so that antenna “A” is again providing signal the BDE distribution.
To provide a seamless switching transition, refer to the arbitrator installation instructions to balance the TX & RX
signal levels between the two antennas.
1.3. Automatic Beam Switching (ABS)
ABS is a method of communicating remotely via an overhead channel, or locally from the modem, to reconfigure
the ACU(s) to use a different beam on the same satellite or to use a different satellite. The ACU’s include
commands which allow remotely setting all of the necessary parameters and to command the targeting of the
desired satellite.
1.4. OpenAMIP™
OpenAMIPTM is a standardized language incorporated into the current iDirect modems which communicates
automatic beam switching settings from the option file to the Sea Tel ACU(s). This allows the network to
accomplish to provide automatic beam switching remotely by switching option files in the remote modem.

Dual Antenna Arbitrator (MXP) Introduction
1-2
1.5. FCC Compliance
FCC regulation 47 C.F.R. § 25.221 (C-Band) and 47 C.F.R. § 25.222 (Ku-Band) define the provisions for blanket
licensing of ESV antennas operating in the C, and Ku, Band respectively. Please refer to the FCC Declaration in
your antenna manual for specifics.
The Sea Tel antennas referenced in this document, will maintain a stabilization pointing accuracy of better than
0.2 degrees under specified ship motion conditions.
These antenna systems, with current software, contain FCC compliant supervisory software to continuously
monitor the pedestal pointing error. This supervisory software will trip an error flag, which will automatically cease
transmission within 100 milliseconds, if the pointing error should exceed 0.5 degrees. Transmission will not
resume until the pointing error drops below 0.2 degrees.
To be compliant with these FCC requirements, the “Transmit Mute” output of the Sea Tel below
decks controller must be connected, through the Dual Antenna Arbitrator, to the “Mute Input” of the
satellite modem via serial or Ethernet connection.

Front Panel Operation Dual Antenna Arbitrator (MXP)
2-1
2. Front Panel Operation
2.1. Front Panel Buttons
ANT A -In Manual Mode this button selects Antenna “A” to be the “Active” antenna. The TX & RX IF signals
from Antenna ”A” are routed to the Satellite Modem via the Arbitrator coax switches. Antenna “B” is the
“Standby” antenna.
ANT B-In Manual Mode this button selects Antenna “B” to be the “Active” antenna. The TX & RX IF signals
from Antenna ”B” are routed to the Satellite Modem via the Arbitrator coax switches. Antenna “A” is the
“Standby” antenna.
Manual -Selects Manual Mode.
Auto -Selects Automatic Mode.
RESET -Resets the processors in the Dual Antenna Arbitrator
Power -Turns the Dual Antenna Arbitrator ON/OFF. When OFF, the de-energized state of the coax switches is
Antenna “A”. When energized, the default power-up state in Auto – ANT A.
2.2. Front Panel LEDs
ANT A -When illuminated, this LED indicates that Antenna “A” is the “Active” antenna.
ANT B-When illuminated, this LED indicates that Antenna “B” is the “Active” antenna.
Manual -When illuminated, this LED indicates that the Dual Antenna Arbitrator is in Manual Mode.
Auto -When illuminated, this LED indicates that the Dual Antenna Arbitrator is in Automatic Mode.
Power -When illuminated, this LED indicates that Power is ON.
2.3. Automatic Mode
The normal mode of operation is Automatic. In automatic mode operator intervention is not required because
the Dual Antenna Arbitrator will switch the antennas using the inputs from the two ACU’s. Press Auto to select
this mode.
The latching logic is:
Antenna “A”
Antenna “B”
Action
Available
Not Available
Switch to ANT A
Available
Available
Do Not change state
Not Available
Available
Switch to ANT B
Not Available
Not Available
Do Not change state
Available -The antenna is tracking the desired satellite and the satellite modem has network lock. Satellite
services are available from this antenna.

Dual Antenna Arbitrator (MXP) Front Panel Operation
2-2
Not Available -The ACU will output ”Blocked” and “Mute” signals to the Dual Antenna Arbitrator, indicating
that that Satellite services are NOT available from this antenna if:
•The antenna is searching, targeting or is mispointed by more than 0.5 degrees.
•The antenna is within any one of the blockage zones saved in its ACU.
•Loss of Modem Lock will cause Search, leading to the same ACU output.
•Modem failure
•Failure in the RF Receive path to the modem.
•If Tracking is turned OFF and the AGC level of the ACU is below Threshold.
•This Antenna, or its ACU, is de-energized.
2.4. Manual Mode
Manual mode allows you to manually select which antenna is providing services to the modem. Manual mode will
allow you to select an antenna, that would not be available in automatic mode, to provide services to the modem.
While in manual mode of operation, operator action is REQUIRED to switch the antennas whenever necessary.
Press the Manual button to select Manual Mode of operation.
Then;
Press ANT A to select Antenna “A” to be the “Active” antenna.
Press ANT Bto select Antenna “B” to be the “Active” antenna.
Press Auto to return to Automatic Mode of operation .

Remote Operation Dual Antenna Arbitrator (MXP)
3-1
3. Remote Operation
Below are commands that are most commonly used for communicating with the ACU(s) or the Dual Antenna Arbitrator.
3.1. Automatic Beam Switching (ABS)
Listed below are the basic commands and their responses:
Name
Command
Response
Azimuth
Aaaaa↵
Elevation Eaaaa
↵
Satellite longitude
Tnnnn↵
Target NID
tnnnn↵
Tuning freq (MHz) or DVB/RF mode
cnnnn↵
Lnnnn RL
Set Baud rate/KHz tuning
dnnnn↵
Lnnnn RL
Target current Satellite (Find)
F↵
Polang Tx Type
mAnnn↵A=087
m0nnn↵
Satellite
mAnnn↵A=104; A=105
m0nnn↵
Satellite E/W
mAnnn↵A=106;
m0nnn↵
FEC Tone Volt
mAnnn↵A=117
m0nnn↵
Saved (Target) NID
mAnnn↵A=125; A=126
m0nnn↵
SatSkew
mAnnn↵A=0138
m0nnn↵
Status
S
S@@@@Lnnnn RL \r\n
Relative AZ / Ships Heading
H
RrrrrHaaaa \r\n
Az/El/Cl Position Decimal
P
EaaaaAaaaaCaaaa \r\n
Az/El/Cl Position Hex
p
ExxxxAxxxxCxxxx \r\n
Read Tuning Frequencies, Rec NID
q
Qnnnn nnnn xxxx \r\n
Notes:
1) Target NID is set using tnnnn but never read using mA commands.
2) Target NIDs of 54 and 55 are used to switch AUX on/off, effectively toggling CoPol/XPol in legacy mode.
3) Target NIDs of 48 and 49 are used to switch Reflector A or B in dual-Reflector pedestals in legacy mode.
3.2. Open Antenna-Modem Interface Protocol (OpenAMIP™) Specification:
3.2.1. Overview:
OpenAMIPTM, an ASCII message based protocol invented and Trademarked by iDirect is a specification
for the interchange of information between an antenna controller and a satellite modem. This protocol
allows the satellite modem to command the ACU (via TCP port 2002) to seek a particular satellite as well
as allowing exchange of information necessary to permit the modem to initiate and maintain
communication via the antenna and the satellite. In general, OpenAMIPTM is not intended for any
purpose except to permit a modem and the ACU to perform synchronized automatic beam switching. It
is NOT a status logging system or a diagnostic system. In addition, OpenAMIPTM is intended for a typical
installation whereby a specific satellite modem and Antenna system are properly configured to work
together. The protocol does not make specific provisions for auto-discovery or parameter negotiation.
It is still the responsibility of the installer to ensure that the parameters of both the satellite modem
(proper option files) and the ACU/PCU (setup parameters) are actually compatible for the intended
satellite(s).

Dual Antenna Arbitrator (MXP) Remote Operation
3-2
3.2.2. Interface requirements:
3.2.2.1. Hardware
Sea Tel Antenna Control Units Model DAC-2202 or DAC-2302.
Any Satellite modem manufacturer that is compatible with OpenAMIPTM
CAT5 Patch cable
3.2.2.2. Software
Sea Tel model DAC-2202:
ACU software version 6.06 or greater
CommIF module software version 1.10f or greater
Sea Tel model DAC-2302:
ACU software version 7.06 or greater
CommIF module software version 1.10f or greater
3.3. Dual Antenna Arbitrator Command Summary
Use the following commands to communicate directly with the Dual Antenna Arbitrator:
COMMAND
FUNCTION
set system default
Set all Arbitrator parameters to default
set system network {gateway|netmask|ip}
nnn.nnn.nnn.nnn
Set network address values
set system mode {manual|auto}
Set Arbitrator switching mode
set system forward port nnnnn
Set TCP forwarding port between DACs and modem
set system {username|password}
Change default username or password
set antenna {a|b} ip nnn.nnn.nnn.nnn
Set DAC A/B IP address
set antenna {a|b} active
Set which antenna is currently active
set hot_standby {on|off}
Turn 10MHz Reference for hot standby on/off
set gps source obm
Set GPS source to OBM or none
set gps source antenna {a|b|active}
Set GPS source to either antenna a/b/whichever is active
show all
Show all system parameters
show system network {gateway|netmask|ip} Show the current network gateway, netmask, or IP
address
show system mode
Show whether the Arbitrator is in auto or manual mode
show system forward port
Show which TCP port links the DACs and modem
show system version
Show the current loaded Arbitrator software version
show antenna {a|b} ip
Show the IP address of DAC A/B
show antenna source
Show which antenna is used in the current RF path
show hot_standby
Show whether the hot standby reference is on/off
show gps source
Show the current source of GPS data
upgrade system serial
Update the Arbitrator software via the serial port
help
Show possible command options
save
Save the current parameters settings
{quit|exit}
End the Telnet session
logout
Return to the Telnet session login screen
reset
Reboot the Arbitrator via software reset
ABBREVIATIONS:
aaaa
ASCII number of degrees in tenths.
xxxx
ASCII hex I/O data 0000 – FFFF range
nnnnn ASCII decimal number (0000 - 99999)
nnnn
ASCII decimal number (0000 - 9999)
nnn
ASCII decimal number (0 - 255)

Remote Operation Dual Antenna Arbitrator (MXP)
3-3
sss
ASCII string of characters.
lf (0x0A) or \n
Line Feed (New Line)
↵, cr (0x0D) or \r
Carriage Return (Enter)
3.3.1. Command Details
set system default
The set system default command changes all of the Arbitrator’s configurable parameters to their default
values specified in Appendix B.
Note: This command choice will be confirmed by user with a prompt with arguments of {yes / no}. yes
will confirm setting system parameters to default values; no will confirm ignoring of set system default
command.
set system network {gateway / netmask / ip} nnn.nnn.nnn.nnn
The set system network command changes the values for the Arbitrator IP address, netmask, and
network gateway. Parameters:
gateway: changes the Arbitrator network gateway to value specified
netmask: changes the Arbitrator netmask to value specified
ip: changes the Arbitrator ip address to value specified
nnn.nnn.nnn.nnn: argument specified in standard dot-decimal notation
Note: these changes will not be implemented until after a hardware or software reset. Note: the
Arbitrator only supports IPv4
set system mode {manual / auto}
The set system mode command changes the Arbitrator switching mode. Parameters:
manual: the active antenna is user selectable and will not switch based on antenna state
auto: the active antenna is not user selectable and will switch automatically based on antenna
state
set system forward port nnnnn
The system forward port command changes the TCP port on which packets will be forwarded to and
from the satellite modem to the DACs. Parameters:
nnnnn: This is the decimal value of the port number between 0-65535 inclusive.
set system {username | password} sssssssss
The set system username/password command changes the default username/password. Parameters:
username: change the default username
password: change the default password
sssssssss: the new username string
Note: the username/password must be alphanumeric and no longer than 9 characters. Note: the user will
be prompted to confirm the username/password selection. To confirm, retype the username/password
as entered in the command above. Any other input will force the username/password change to be
ignored.
set antenna {a / b} ip nnn.nnn.nnn.nnn
The set antenna A/B ip command changes the IP addresses that correspond to ANT A/B DACs, use.
Parameters:
a: the IP entered corresponds to ANT A’s DAC
b: the IP entered corresponds to ANT B’s DAC
nnn.nnn.nnn.nnn: IP address specified in standard dot-decimal notation
Note: the Arbitrator only supports IPv4

Dual Antenna Arbitrator (MXP) Remote Operation
3-4
set antenna {a | b} active
The set antenna A/B active command changes which antenna is currently active. Parameters:
a: ANT A is active
b: ANT B is active
Note: this will temporarily override the current active antenna regardless of switching mode. If the
Arbitrator is in auto mode and the system state is such that the antenna not selected should be active,
the Arbitrator will switch back to that antenna almost immediately.
set hot_standby {on / off}
The set hot standby command turns the 10MHz reference on or off. Parameters:
on: 10MHz oscillator will be enabled
off: 10MHz oscillator will be disabled
Note: Regardless of whether or not the connector is accessible on the back panel, this command will still
configure the reference oscillator. For customers without the 10MHz Reference connector, it is
recommended the hot_standby be turned off.
set gps source obm
The set gps source obm command changes the GPS source to be either the Out of Band Manger
connected to the Arbitrator or have the GPS taken from a source that is not either antenna’s DAC.
set gps source antenna {a / b / active}
The set gps source antenna command changes the GPS source to be one of the antenna’s DACs.
Parameters:
a: always take the GPS data from ANT A DAC
b: always take the GPS data from ANT B DAC
active: GPS data source will switch automatically along with RF path
show all
The show all command displays all of the Arbitrator’s current settings.
Note: the output of this command is structured such that it can be issued back into the Arbitrator to
restore its previous state.
show system network {gateway | netmask | ip}
The show system network command displays the Arbitrator network settings. Parameters:
gateway: displays the network gateway address in dot-decimal notation
netmask: displays the netmask in dot-decimal notation
ip: displays the Arbitrator IP address in dot-decimal notation
show system mode
The show system mode command displays the current Arbitrator switching mode.
show system forward port
The show system forward port command displays the current TCP forwarding port between the modem
and the DACs.
show system version
The show system version command displays the current Arbitrator software version.

Remote Operation Dual Antenna Arbitrator (MXP)
3-5
show antenna {a | b} ip
The show antenna A/B ip command displays the current IP addresses set for the two DACs.
Parameters:
a: shows DAC A’s IP address in dot-decimal format
b: shows DAC B’s IP address in dot-decimal format
show antenna source
The show antenna source command displays the current active antenna.
show hot_standby
The show hot_standby command displays the current status of the 10MHz oscillator.
show gps source
The show gps source command displays the current source of GPS data.
upgrade system serial
The upgrade system serial command upgrades the software version using the serial downloader.
help
The help command provides the user with additional information about the command structure in
relation to what has been entered at the command prompt by the user.
save
The save command stores the current Arbitrator parameters.
Note: upon hardware or software reset, the Arbitrator will load the parameters from the last save point or
the default parameters if a save point has not yet been created.
{quit | exit}
The quit or exit commands closes the Telnet session.
Note: this command is not valid for the serial interface.
logout
The logout command returns the user to the login screen of the Telnet interface.
Note: this command is not valid for the serial interface.
Reset
The reset command forces the Arbitrator to perform a software reset.
Note: any unsaved parameter changes will be lost upon hardware or software reset.
3.3.2. General Notes
Unless otherwise noted, the cr (0x0D), lf (0x0A), “>" echo indicates that the Arbitrator has accepted a
command and is ready to process the next command. Any additional commands will not be accepted
until after the Arbitrator echoes cr (0x0D), lf, “>".
All commands are case independent such that commands can be entered as all capital
letters, all lower case, or a random mix for a valid command.
All commands should be followed by cr (0x0D) in order to be received and processed. This
was intentionally omitted above for ease of readability.
Additional characters added after a valid command are not ignored and will return a user error message.
After a valid command, “ ‘ “ (0x27) can be used to add comments or other characters to be ignored by
the Arbitrator.

Dual Antenna Arbitrator (MXP) Remote Operation
3-6
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Dual Antenna Installation Dual Antenna Arbitrator (MXP)
4-1
4. Dual Antenna Installation
The antennas used with this Dual Antenna Arbitrator can be Series 09MK3, Series 12 or Series 9711IMA.
If not already installed, refer to your antenna installation manual to install the two Sea Tel antennas. After the installation
of the antennas, the MXP Antenna Control Units and the cables has been completed, refer to the information below to
install the Dual Antenna Arbitrator.
4.1. Unpacking and Inspection
Exercise caution when unpacking the equipment.
1. Unpack the carton.
2. Carefully inspect the arbitrator for evidence of shipping damage.
3. Inventory the contents using the Bill Of Materials provided in the carton.
4. Inspect everything to assure that all materials have been received and are in good condition.
4.2. Install the Dual Antenna Arbitrator
Install the Dual Antenna Arbitrator in a convenient location within your 19” equipment rack where it is in
proximity of both ACU’s, satellite modem and any other below decks equipment that it will be connected to.
4.3. Shipboard Cable Installation
CAUTION: Rough handling, tight bending, kinking, crushing and other careless
handling of the cables and their connectors can cause severe damage.
Use caution in installing interconnecting cables. Avoid routing cables across sharp edges that will cut of chafe
these cables. Don’t lay these cables on other power or signal cables which may induce noise into them. Avoid
sharp bends, kinking, and the use of excessive force.
If slide rails are being used, assure that the cables are dressed & routed properly, and are of sufficient length, to
allow the equipment to be pulled out on it’s slide rails.
4.4. Connecting the Below Decks Equipment
You may also elect to provide an Ethernet router / hub / switch and install interconnecting cables between other
below decks equipment than are sited herein. These additional Ethernet cables are not provided, nor are they
discussed below.
Connect the Dual Antenna Arbitrator to the other below decks equipment as shown in the Simplified Block
Diagram and as described below.

110/220 VAC
Pedestal Input
Power
Ships Gyro
Compass
Synchro
SBS
RX IF input To MXP Receive IF Signal
OR
OR
RJ-45 Serial Cable - GPS & TX Inhibit Output and Satellite Modem Lock Input from MXP “A”
Your Telephone/FAX
Media
Xchange
Point “A”
J2
RJ
AC
Power
Dual Med VSAT-MXP Ethernet Config_SimBlk_A.vsd
Above Decks
Below Decks
J10C
Sat
Modem
RX
IN TX OUT CFE Satellite
Modem
J1
Modem Media
Xchange
Point “B”
Computer Your Telephone
or PBX device Computer
Your Computer with
LAN Card
CFE Spectrum Analyzer
Your Computer with
LAN Card
RX
OUT
If Active –TX IF & 10MHz Reference from Satellite Modem via Arbitrator
If Standby –10MHz Reference (optional) from Arbitrator
RX IF input To MXP
RJJ-11 Connection
Dual Antenna
Arbitrator
LNB 1
LNB 2
BUC 1
BUC 2
Transmit IF Signal
J10C
Sat
Modem
If Active –TX IF & 10MHz Reference from Satellite Modem via Arbitrator
If Standby –10MHz Reference (optional) from Arbitrator
MXP RXIF output from Antenna “B” to Satellite Modem through Arbitrator
ANT “A” ANT “B”
MXP RXIF output from Antenna “A” to Satellite Modem through Arbitrator
Modem Serial
(Legacy)
AC
Power
NMEA 0183
J13
NMEA
NMEA 2000
J115
NMEA
2000
OR
J3A
Ethernet
Ethernet LAN Connection
Synchro
SBS
OR
OR
AC
Power
NMEA 0183
J13
NMEA
NMEA 2000
J115
NMEA
2000
OR
J3A
Ethernet
Transmit IF Signal
Receive IF Signal
J2
RJ
J1
Modem
WAN
CFE Router
CFE VOIP
Adapter
RJJ-11 Connection
Ethernet LAN Connection Ethernet LAN Connection
Ethernet LAN Connection
Ethernet LAN
Connection
RJ-45 Serial Cable - GPS & TX Inhibit Output and Satellite Modem Lock Input from MXP “B”
220 VAC Air
Conditioner
Input Power 110/220 VAC
Pedestal Input
Power
220 VAC Air
Conditioner
Input
Power
Ethernet LAN Connection
Series 12
Ku-Band
VSAT
Antenna “A”
Series 12
Ku-Band
VSAT
Antenna “B”

110/220 VAC
Pedestal Input
Power
Ships Gyro
Compass
Synchro
SBS
RX IF input To MXP Receive IF Signal
OR
OR
RJ-45 Serial Cable - GPS & TX Inhibit Output and Satellite Modem Lock Input from MXP “A”
Your Telephone/FAX
Media
Xchange
Point “A”
J2
RJ
AC
Power
Dual Lg VSAT-MXP Ethernet Config_SimBlk_A.vsd
Above Decks
Below Decks
J10C
Sat
Modem
RX
IN TX OUT CFE Satellite
Modem
J1
Modem Media
Xchange
Point “B”
Computer Your Telephone
or PBX device Computer
Your Computer with
LAN Card
CFE Spectrum Analyzer
Your Computer with
LAN Card
RX
OUT
If Active –TX IF & 10MHz Reference from Satellite Modem via Arbitrator
If Standby –10MHz Reference (optional) from Arbitrator
RX IF input To MXP
RJJ-11 Connection
Dual Antenna
Arbitrator
LNB 1
LNB 2
BUC 1
BUC 2
Transmit IF Signal
J10C
Sat
Modem
If Active –TX IF & 10MHz Reference from Satellite Modem via Arbitrator
If Standby –10MHz Reference (optional) from Arbitrator
MXP RXIF output from Antenna “B” to Satellite Modem through Arbitrator
ANT “A” ANT “B”
MXP RXIF output from Antenna “A” to Satellite Modem through Arbitrator
Modem Serial
(Legacy)
AC
Power
NMEA 0183
J13
NMEA
NMEA 2000
J115
NMEA
2000
OR
J3A
Ethernet
Ethernet LAN Connection
Synchro
SBS
OR
OR
AC
Power
NMEA 0183
J13
NMEA
NMEA 2000
J115
NMEA
2000
OR
J3A
Ethernet
Transmit IF Signal
Receive IF Signal
J2
RJ
J1
Modem
9711IMA
C & Ku-Band
VSAT
Antenna “A”
WAN
CFE Router
CFE VOIP
Adapter
RJJ-11 Connection
Ethernet LAN Connection Ethernet LAN Connection
Ethernet LAN Connection
Ethernet LAN
Connection
RJ-45 Serial Cable - GPS & TX Inhibit Output and Satellite Modem Lock Input from MXP “B”
220 VAC Air
Conditioner
Input Power 110/220 VAC
Pedestal Input
Power
220 VAC Air
Conditioner
Input
Power
9711IMA
C & Ku-Band
VSAT
Antenna “B”
Ethernet LAN Connection

Dual Antenna Arbitrator (MXP) Dual Antenna Installation
4-4
4.5. Dual Antenna Arbitrator Connections
AC Power Cable - Connect the AC Power cable from the rear of the Dual Antenna Arbitrator to an AC outlet
fed from a suitably rated breaker or UPS.
LNB A - Connect an SMA-SMA coax cable assembly (Sea Tel PN 114972-1 or equivalent) with an SMA-F
adapter (Sea Tel PN 115492-32 or equivalent) from here to J1 MODEM connector on the rear panel of MXP “A”.
RX -Connect an SMA-SMA coax cable assembly (Sea Tel PN 114972-1 or equivalent) with an SMA-F adapter
(Sea Tel PN 115492-32 or equivalent) from here to RF INPUT on your Satellite Modem.
LNB B - Connect an SMA-SMA coax cable assembly (Sea Tel PN 114972-1 or equivalent) with an SMA-F adapter
(Sea Tel PN 115492-32 or equivalent) from here to J1 MODEM connector on the rear panel of MXP “B”.
BUC A -Connect an SMA-N coax cable assembly (Sea Tel PN 111079-6 or equivalent) from here to the TX
connector on ADE/BDE coax cable interconnect bracket “A”.
10MHz Out -Connect an SMA-SMA coax cable jumper assembly (Sea Tel PN 114972-1 or equivalent) with an
from here to 10MHz IN on the arbitrator.
TX - Connect an SMA-SMA coax cable assembly (Sea Tel PN 114972-1 or equivalent) with an SMA-F adapter
(Sea Tel PN 115492-32 or equivalent) from here to TX OUTPUT on your Satellite Modem.
BUC B -Connect an SMA-N coax cable assembly (Sea Tel PN 111079-6 or equivalent) from here to the TX
connector on ADE/BDE coax cable interconnect bracket “B”.
DAC “A” TMS -Connect an RJ-45 serial cable from here to J10C MODEM on MXP “A”.
DAC “B” TMS - Connect an RJ-45 serial cable from here to J10C MODEM on MXP “B”.
MODEM -
Legacy Configurations: -If you have a legacy configuration with hardwire serial connection for TX
Mute, Satellite Modem Network Lock and GPS.
•iDirect Modem - Connect RJ-45 Serial cable from the Modem connector on the rear panel of
the arbitrator Console connector on the rear panel of the satellite modem.
•ComTech Modem - Connect the ComTech cable assembly (135192) from the Modem
connector on the rear panel of the arbitrator to the Alarm connector on the rear panel of the
satellite modem.
Ethernet Configurations: If your satellite modem is capable of communicating TX Mute, Satellite
Modem Network Lock and GPS with the MXPs via Ethernet:
•Do NOT connect this Modem port to anything. See Ethernet connection below.
•Connect each MXP Ethernet connector J3A to an open port on your Ethernet router/hub/switch
using an Ethernet patch cable (Sea Tel PN 119479-10 or equivalent).
OBM - Not used in this configuration.
ETHERNET - Connect an Ethernet patch cable (Sea Tel PN 119479-10 or equivalent) from here to an open port
on your Ethernet router/hub/switch.
CONSOLE -Not used in this configuration.
4.6. MXP Connections
These connection will have been made during the installation of the antennas. Assure that they are correct,
changing or adding connections as necessary.
RX L-Band A - Connect an N-SMA coax cable assembly from the antenna “A” ADE/BDE coax cable
interconnect bracket to J2 RJ connector on the rear panel of MXP “A”.
RX L-Band B - Connect an N-SMA coax cable assembly from the antenna “B” ADE/BDE coax cable
interconnect bracket to J2 RJ connector on the rear panel of MXP “B”.
CFE Computer ETHERNET - Connect an Ethernet patch cable (Sea Tel PN 119479-10 or equivalent)
from your local computer to an open port on your Ethernet router/hub/switch.
MXP A ETHERNET - Connect an Ethernet patch cable (Sea Tel PN 119479-10 or equivalent) from J3A
on the rear panel of MXP “A” to an open port on your Ethernet router/hub/switch.