Page 1
MBT-4000B Multi-Band Transceiver System Installation and Operation Manual IMPORTANT NOTE: The information contained in this document supersedes all previously published information regarding this product. Product specifications are subject to change without prior notice. Part Number MN/MBT4000.IOM Revision 0...
Page 4
3. To ensure that the product is not damaged during shipping, pack the product in its original shipping carton/packaging. 4. Ship the product back to Comtech EF Data. (Shipping charges should be prepaid.) For more information regarding the warranty policies, see Warranty Policy, p. viii.
Page 8
Multi-Band Transceiver System Revision 0 Preface MN/MBT4000B.IOM This page is intentionally left blank.
Page 9
MN/MBT4000B.IOM BOUT THIS ANUAL This manual provides installation and operation information for the Comtech EF Data MBT-4000B, Multi-Band Transceiver System. This is a technical document intended for earth station engineers, technicians, and operators responsible for the operation and maintenance of the MBT-4000B, Multi-Band Transceiver System.
Page 10
Multi-Band Transceiver System Revision 0 Preface MN/MBT4000B.IOM EMC C OMPLIANCE This is a Class A product. In a domestic environment, it may cause radio interference that requires the user to take adequate protection measures. EN55022 C OMPLIANCE This equipment meets the radio disturbance characteristic specifications for information technology equipment as defined in EN55022.
Page 11
Multi-Band Transceiver System Revision 0 Preface MN/MBT4000B.IOM AFETY OMPLIANCE EN 60950 Applicable testing is routinely performed as a condition of manufacturing on all units to ensure compliance with safety requirements of EN60950. This equipment meets the Safety of Information Technology Equipment specification as defined in EN60950.
Page 12
For equipment under warranty, the customer is responsible for freight to Comtech EF Data and all related custom, taxes, tariffs, insurance, etc. Comtech EF Data is responsible for the freight charges only for return of the equipment from the factory to the customer.
1.2 F UNCTIONAL ESCRIPTION The MBT-4000B is designed to perform the following functions: • LNB support for C-, X-, or Ku- RF to L-Band down conversion • L-Band to C-, X-, or Ku- RF up conversion • RF Band switching in minimal time without requiring tools •...
Bias. BIAST FROM LNB X To L-Band MODEM 1:1 MBT SUBSYSTEM TO SSPA X BUC X (SLOT 1) From L-Band MODEM UNIT X COMM TO RF SWITCH X IF SWITCH FROM SSPA X REDUNDANCY CONNECTION Figure 1-2. MBT-4000B Typical Application...
(58° to +160°F) Input Connector Type ‘N’ – Female Physical: Output Connector Type ‘N’ – Female (C, X, and Ku) ODU: MBT-4000B Gain 15 dB nominal at minimum Prime Power 90 to 260 VAC, 47 to 63 Hz attenuation User Attenuation Range...
Multi-Band Transceiver System Revision 0 Introduction MN/MBT4000B.IOM 1.3 S YSTEM VERVIEW The transceiver is constructed in a modular configuration. Common to the configuration for any frequency band of operation is a base module, which provides the M&C, Power Supply, and Reference function. A Band-specific BUC module is mounted to the base module with clip-type fasteners.
Page 18
Multi-Band Transceiver System Revision 0 Introduction MN/MBT4000B.IOM NOTES:...
NSTALLATION AND PERATION The Common Module of the MBT-4000B may be located near or on the antenna. The band-specific BUC is latched into place on top of the Common Module (M&C, Power Supply, Reference). Cables to the antenna and IDU complete the installation.
Multi-Band Transceiver System Revision 0 Installation MN/MBT4000B.IOM 2.2.1 COMM (J2) P ONNECTIONS Table 2-2. COMM (J2) Pin Connections COMM (J2) RS 485 Rx+ RS 485 Rx- RS 485 Tx+ RS 485 Tx- RS 232 RD RS 232 TD SUM FLT COMM SUM FLT NO SUM FLT NC Mating Connectors:...
Multi-Band Transceiver System Revision 0 Installation MN/MBT4000B.IOM 2.2.2 IF S (J4) P WITCH ONNECTIONS Table 2-3. IF Switch (J4) Pin Connections IF Switch (J4) POS 1 IF POS 2 IF POS 1 IND IF POS 2 IND IF Mating Connectors: Cannon MS3116J10-6P CEFD CN/MS3116J10-6P 2.2.3 R...
Multi-Band Transceiver System Revision 0 Installation MN/MBT4000B.IOM 2.2.4 A 1 (J9) P ONNECTIONS Table 2-5. Aux Comm 1 (J9) Pin Connections AUX COMM1 (J9) AUX Rx + A AUX Rx – A AUX Tx + A AUX Tx – A +12.6V LNA A IO1 A/Fault see Note 1 IO1 B see Note 2...
Chapter 3. System Operation 3.1 D ESCRIPTION The MBT 4000B supports LNBs for receive down conversion. It outputs +17VDC nominal and 10 MHz on the “L-Band input” connector. The LNB amplifies the input RF signal and down converts it to L-Band in the range of 950 to 1750 MHz (there may be instances that the L-Band range = 950 to 1450 MHz ).
Page 26
Multi-Band Transceiver System Revision 0 System Operation MN/MBT4000B.IOM 3.2 B (BUC-4000) LOCK ONVERTER The BUC-4000 translates an L-Band carrier to the desired output frequency (C, X-, or Ku- or Ka-), with an output level capable of driving an HPA. BUC-4000 C, X, Ku, Ka Band Frequency LO Frequency...
Multi-Band Transceiver System Revision 0 System Operation MN/MBT4000B.IOM 3.3 LO, M (LNB) IX AND PECTRUM ETTINGS 3.3.1 C-B Table 3-1. For C-Band: LO and MIX Information for Demodulator and LNB L-Band L-Band Demod LO (Offset) Frequency Frequency Spectrum LNB Part No. Description Frequency Satellite...
Multi-Band Transceiver System Revision 0 System Operation MN/MBT4000B.IOM 3.3.2 K Table 3-2. For Ku-Band: LO and MIX Information for Demodulator and LNB, Ku-Band L-Band L-Band Demod LO (Offset) Frequency Frequency Spectrum LNB Part No. Description Frequency Satellite Satellite (Utility (MHz) (+/-) Frequency Frequency...
The MBT-4000B is designed to operate in both stand-alone and redundant configurations. Every MBT-4000B base contains the circuitry and logic necessary to perform all the functions of a backup controller in either a single base and dual base configuration. The Bias Tee side of the MBT 4000B provides the 10 MHz reference and DC voltage for the LNB.
In dual base (chain) redundancy operation, the redundancy is ‘slot’ based. The corresponding pairs reside in the same ‘slot’ of the opposite MBT-4000B base, the pair of BUCs connected to J3 UNIT 1 COMM (slot 1) on each base form a redundant pair. The LNBs connected to “L BAND IN”...
0 for disabled, or 1 for enabled LNB Power Supply Current Monitoring The bias tee in the MBT-4000B base is used to supply power and the 10 MHz reference to the LNB. This power supply features current monitoring with programmable failure limits. Over-current and under-current failures can participate in overall fault indication and redundant switchover criteria.
If a current is detected outside this window, a LNB current fault will be posted, but the supply will not be disabled. Gain Equalization of Redundant Units Uplink Gain equalization in an MBT-4000B system is accomplished by issuing individual attenuation settings to the specific BUCs. LED Status Indicators...
Multi-Band Transceiver System Revision 0 Redundant Configuration MN/MBT4000B.IOM Redundany Systems Check Step Procedure Set up two MBTs with BUCs installed in slot one. Note: The BUCs must match. Using a multi-drop 485 connection, set the comm. address of one MBT to one(<”current address”/SPA=0001) and the comm.
Page 34
Multi-Band Transceiver System Revision 0 Redundant Configuration MN/MBT4000B.IOM Step Procedure Verify that both LEDs on MBT A are solid green. Power up MBT B Verify that both LEDs on MBT B are flashing green. Power down MBT A. This should have forced both switches to throw to MBT B. Verify that both LEDs on MBT B are solid green Power up MBT A.
Page 35
Multi-Band Transceiver System Revision 0 Redundant Configuration MN/MBT4000B.IOM Step Procedure Enable external fault monitoring by sending an EAM=11 command to both base units. Fault the online SSPA by removing its power and confirm LED one of the associate MBT is red(indicates fault detected” and blinking(indicates the switch has thrown and is now offline).
Page 36
Multi-Band Transceiver System Revision 0 Redundant Configuration MN/MBT4000B.IOM This page is intentionally left blank.
Appendix A. Remote Control This section describes the protocol and message command set for remote monitor and control of the MBT 4000B. The electrical interface is either an RS-485 multi-drop bus (for the control of many devices) or an RS-232 connection (for the control of a single device), and data is transmitted in asynchronous serial form, using ASCII characters.
Page 38
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM RS-485 (full duplex) summary: Two differential pairs one pair for controller to target one pair for target to controller Controller-to-target pair one line driver (controller) and all targets have line- receivers. Target-to-controller pair one line receiver (controller) and all targets have tri- state drivers.
Page 39
The BDC and BUC sub-devices may also be addressed by appending the corresponding sub- device address. The sub-device address is ‘A1’ for the BXC. For example, a mute command addressed to a BUC attached to an MBT-4000B at address 0412 will be: <0412A1/MUT=1{CR}...
Page 40
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM The format of the response will be: >0412A1/MUT={CR}{LF} Sub-device addresses cannot be changed. The controller sends a packet with the address of a target - the destination of the packet. When the target responds, the address used is the same address, to indicate to the controller the source of the packet.
Page 41
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM From Target-to-Controller, the only permitted values are: = (ASCII code 61) ? (ASCII code 63) (ASCII code 33) (ASCII code 42) (ASCII code 35) They have these meanings: The ‘=’ code (target to controller) is used in two ways: First, if the controller has sent a query code to a target (for example MUT?, meaning ‘is mute enable or disable?’), then the target would respond with MUT=x, where x represents the state in question, 1 being ‘enable’...
Page 42
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM A.4.5 M ESSAGE RGUMENTS Arguments are not required for all messages. Arguments are ASCII codes for the characters 0 to 9 (ASCII 48 to 57), period (ASCII 46) and comma (ASCII 44). A.4.6 E ACKET Controller to Target: This is the ‘Carriage Return’...
Page 44
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM This page is intentionally left blank. A–8...
Page 45
ATT? (received ok, but invalid Example: ATT=08.25 arguments found) ATT*(message ok, but not permitted in current mode) ATT! (Command not accepted by MBT-4000B base unit. It must be addressed to BUC or BDC sub-units) Clear All CAA= None Command only. CAA=(message Stored Instructs the slave to clear all Stored Events.
Page 46
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM Arguments Command Valid on Description of arguments Query Response to Parameter (Instruction MBT, Command (Note that all arguments are ASCII numeric codes, that Response to Command (Instruction query Type Code and BDC, or is, ASCII codes (Target to controller) Code and...
Page 47
= 0 or 1, 0=OK, 1=FLT arguments) All: a=+15V Power Supply b=+7.5V Power Supply c=+5.0V Power Supply MBT-4000B: d=+28V Power Supply e=Ref Oscillator Lock Detect f=Intermodule Communications g=Max current on LNA power supply AUX COMM1 h=Max current on LNB power supply Bias Tee...
Page 48
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM Command Arguments for Response to Query Response to Valid on Description of arguments Parameter (Instruction Command or Command (Instruction query MBT, (Note that all arguments are ASCII numeric codes, that is, Type Code and Response to (target to...
Page 49
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM Command Arguments for Description of arguments Response to Query Response to Valid on Parameter (Instruction Command or (Note that all arguments are ASCII numeric codes, that is, Command (Instruction query MBT, Type Code and Response to ASCII codes...
Page 50
{lf} All: aaa.a=+15V power supply bbb.b=+7.5V power supply ccc.=+5V power supply MBT-4000B Base Unit: ddd.d=+28V power supply eee.e=Ref oscillator tuning voltage fff.f=LNA current in mA for LNA A (AUX COMM1) ggg.g= LNB current in mA for the bias tee...
Page 51
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM Command Arguments for Description of arguments Response to Query Response to Valid on Parameter (Instruction Command or (Note that all arguments are ASCII numeric codes, that is, Command (Instruction query MBT, Type Code and Response to ASCII codes...
Page 52
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM Command Arguments for Description of arguments Query Response to Valid on Response to Parameter (Instruction Command or (Note that all arguments are ASCII numeric codes, that (Instruction query MBT, Command Type Code and Response to is, ASCII codes Code and...
Page 53
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM Command Arguments for Description of arguments Query Response to Valid on Response to Parameter (Instruction Command or (Note that all arguments are ASCII numeric codes, that (Instruction query MBT, Command Type Code and Response to is, ASCII codes Code and...
Page 54
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM Command Arguments for Description of arguments Query Response to Valid on Response to Parameter (Instruction Command or (Note that all arguments are ASCII numeric codes, that (Instruction query MBT, Command Type Code and Response to is, ASCII codes Code and...
Page 55
MSP* (message ok, but arguments) Example: MSP=1 would mute the LNB bias tee not permitted in current mode) MSP! (Command not accepted by BUC or BDC sub-units. It must be addressed to the MBT-4000B base unit ) A-19...
Page 56
Used to query the online status of the unit (useful in redundant ONL? (received ok, but configurations). invalid arguments found) Return position of corresponding RF switch. Example for MBT-4000B base unit: <0001/ONL?{cr} >0001/ONL={cr}{lf} ON1=ON ,{cr} ON2=ON , {cr}{lf} Example for BDC: <0001A1/ONL?{cr}...
Page 57
Retrieve 1 byte, Query only. RAI = (message ok) RAI?n RAI=x….x value of Used to Retrieve AUX COMM I/O of the MBT-4000B base RAI? (received ok, but COMM I/O unit., where n=1 invalid arguments (see 1=Aux Comm1 where: found)
Page 58
92 bytes MBT- Query only. RAS? RAS=x….x Alarm Status 4000B Used to Query the Alarm status of the unit 64 bytes (see (BUC), Example for MBT-4000B base: description for 74 bytes <0001/RAS?{cr} details of (BDC), >0001/RAS={cr} arguments) alphanumeric 15VT1=OK{cr} 7V5T1=OK{cr}...
Page 59
Query only. RCS? RCS=x….x Configuration 4000B) Used to Query the configuration status of the unit Status 98 bytes (see (BDC), Example for MBT-4000B base: description for 76 bytes (BUC) <0001/RCS?{cr} details of alphanumeric >0001/RCS={cr} arguments) BF1=X {cr} BF2=X {cr} BT1=DN{cr}...
Page 60
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM Command Arguments for Description of arguments Query Response to Valid on Response to Parameter (Instruction Command or (Note that all arguments are ASCII numeric codes, that is, (Instruction query MBT, Command Type Code and Response to ASCII codes...
Page 61
Query only. RMS? RMS=x….x Retrieve MBT-4000B - Maintenance Status 103 bytes, Used to Query the maintenance status of the unit. alphanumeric (see description Example for MBT-4000B base: <0001/RMS?{cr} for details of BDC – >0001/RMS={cr}{lf} arguments) 98 bytes, 15VT1=015.1{cr} alphanumeric 7V5T1=007.7{cr} 5VLT1=005.0{cr} BUC –...
Page 62
Example: RSN=000000165 details of arguments) Retrieve 24 bytes Query only. RUS? RUS=x….x Utility Status alphanumeric Used to Query the utility status of the MBT-4000B base unit.. (see description for Example: details of <0001/RUS={cr} arguments) >0001/RUS={cr}{lf} ADR=0001{cr} BDR=9600{cr}{lf} Remote Baud...
Page 63
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM Command Arguments for Description of arguments Query Response to Valid on Response to Parameter (Instruction Command or (Note that all arguments are ASCII numeric codes, that (Instruction query MBT, Command Type Code and Response to is, ASCII codes Code and...
Page 64
Multi-Band Transceiver System Revision 0 Remote Command MN/MBT4000B.IOM Command Arguments for Description of arguments Query Response to Valid on Response to Parameter (Instruction Command or (Note that all arguments are ASCII numeric codes, that (Instruction query MBT, Command Type Code and Response to is, ASCII codes Code and...
Appendix B. Faults/Events There are three types of Faults/Events that may occur and be recorded in the event log of an MBT-4000B or BUC-4000. These are: • Summary Faults • Configurable Summary Faults • Informational Events Summary Faults indicate improper operation. When a Summary Fault condition occurs: The Summary Fault Relay will be de-energized.
7V5 PS1 Summary Fault The 7.5 volt power supply is out of tolerance. IIC BUS Summary Fault Unable to communication via the internal high speed communication bus Table B-2. MBT-4000B Configurable Summary Faults Mnemonic Type Mute Description AUXCOM1 Summary Fault Slot 1 The IO1A/FAULT input (AUX COMM 1) indicates a fault.
Multi-Band Transceiver System Revision 0 Faults/Events MN/MBT4000B.IOM Table B-4. BUC-4000 Summary Faults Mnemonic Type Description 15V SUP Summary Fault The 15 volt power supply is out of tolerance. 5VT SUP Summary Fault The 5 volt power supply is out of tolerance. 7V5 SUP Summary Fault The 7.5 volt power supply is out of tolerance.
Page 69
Multi-Band Transceiver System Revision 0 Faults/Events MN/MBT4000B.IOM This page is intentionally left blank.
Page 70
METRIC CONVERSIONS Units of Length Unit Centimeter Inch Foot Yard Mile Meter Kilometer Millimeter 1 centimeter — 0.3937 0.03281 0.01094 6.214 x 10 0.01 — — 1 inch 2.540 — 0.08333 0.2778 1.578 x 10 0.254 — 25.4 1 foot 30.480 12.0 —...
Page 71
2114 85281 WEST TH STREET TEMPE ARIZONA 480 • 333 • 2200 PHONE 480 • 333 • 2161...
Need help?
Do you have a question about the MBT-4000B and is the answer not in the manual?
Questions and answers