Advantech AWMT Installation And Operation Manual

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INSTALLATION AND OPERATIONS MANUAL

HUB-MOUNT

SOLID STATE TRANSCEIVERS

AWMT

PM AWMT REV. 22

AWMT

WARRANTY

This ADVANTECH AMT™ product is warranted against defects in material and workmanship for a period of 2 years from the date of shipment. During the warranty period, ADVANTECH AMT™ will, at its option, either repair or replace products that will prove to be defective.

To return a product for warranty or repair service, you must first request a Return Material Authorisation (RMA) number by contacting ADVANTECH AMT™ at:

Phone: (514) 420-0045 or Fax: (514) 420-0073 Website: www.AdvantechAMT.com or e-mail: Support@AdvantechAMT.com

The unit should be shipped to the following address, in original shipping container (box), with shipping charges prepaid.

ADVANTECH AMT™ 657 Orly Avenue Dorval, Quebec H9P 1G1 CANADA

Please indicate the RMA number on all shipping documentation.

Units shipped without prior issued RMA, or shipped not in original packing, may be subject of rejection and returned at sender’s own expense.

LIMITATIONS OF WARRANTY

ADVANTECH AMT™ warrants this product to be free of materials and workmanship defects.

The foregoing warranty shall not apply to defects resulting from improper handling or abuse by the Buyer, unauthorized modification, operation outside of the environmental specifications for the product, or improper installation or maintenance.

ADVANTECH AMT™ shall not be liable for any direct, indirect, special, incidental or consequential damages.

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CONTENTS

1. SAFETY ..................................................................................................................................6

2. PACKING LIST.....................................................................................................................8

2.1 SINGLE UNIT PACKING LIST.......................................................................................

3. GENERAL INFORMATION..............................................................................................10

4. MAJOR SUBSYSTEMS AND THEIR FUNCTIONS......................................................

4.1 INTRODUCTION ...........................................................................................................11

4.2 DESCRIPTION................................................................................................................11

4.3 UNIT MAJOR COMPONENTS .....................................................................................11

4.3.1 IF to L-Band Up-Converter Module .........................................................................15

4.3.2 L-Band to RF Up-Converter Module........................................................................15

4.3.3 L-Band to IF Down-Converter Module.....................................................................15

4.3.4 Power Amplifier Module...........................................................................................16

4.3.5 Waveguide Assembly.................................................................................................16

4.3.6 Low Noise Block (LNB).............................................................................................16

4.3.7 10 MHz Reference Oscillator....................................................................................16

4.3.8 Main Controller Board..............................................................................................17

4.3.9 Power Supply.............................................................................................................18

5. INTERFACES ......................................................................................................................19

5.1 RELAY INTERFACE.....................................................................................................

5.2 RS-232 INTERFACE ......................................................................................................

5.3 RS-485 INTERFACE ......................................................................................................

5.4 REDUNDANT INTERFACE..........................................................................................

5.5 RF OUTPUT MONITOR INTERFACE.........................................................................

6. UNPACKING AND INSTALLATION..............................................................................25

6.1 INITIAL INSPECTION...................................................................................................25

6.2 UNPACKING..................................................................................................................25

6.3 INSTALLATION ............................................................................................................25

6.3.1 Relay, Serial Interfaces and AC (or DC) Power Cables Construction.....................

6.3.2 Environmental and Adequate Ventilation Considerations........................................26

6.3.3 Mechanical, RF and Electrical Installation..............................................................26

7. PRE-POWER AND SYSTEM CHECKOUT ....................................................................

7.1 PRE-POWER PROCEDURES........................................................................................29

7.2 OPERATIONAL SETTINGS VERIFICATION.............................................................

8. OPERATION........................................................................................................................30

8.1 INTRODUCTION ...........................................................................................................30

8.2 SAFETY CONSIDERATIONS.......................................................................................

19 23 23 24 24

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8.3 BASIC OPERATING PROCEDURE .............................................................................30

8.4 AUTOMATIC LEVEL CONTROL (ALC) ....................................................................32

8.5 USING THE AWMT SOFTWARE ................................................................................33

8.5.1 Using the RS-232 Interface.......................................................................................33

8.5.2 Using the RS-485 Interface.......................................................................................

9. MAINTENANCE..................................................................................................................

9.1 PREVENTIVE MAINTENANCE...................................................................................41

9.2 MECHANICAL PREVENTIVE MAINTENANCE.......................................................41

9.3 COOLING FAN CHECK................................................................................................41

10. APPENDIX A: RS-485 SERIAL COMMUNICATION PROTOCOL........................42

10.1 FRAME STRUCTURE ...................................................................................................42

10.2 COMMANDS..................................................................................................................

10.3 RESPONSE TO COMMANDS FROM SLAVE TO MASTER.....................................

11. APPENDIX B: SAFETY AND EMC COMPLIANCE..................................................

12. ANNEX C: SPECIFICATIONS FOR 250 W C-BAND TRANSCEIVERS MODEL

AWMT-C250-DRE (P/N 1T0-11G110-6B0) .............................................................................

42 44

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FIGURES

FIGURE 1: PRODUCT OUTLINE (C-BAND)......................................................................................12

FIGURE 2: PRODUCT OUTLINE (KU-BAND) ...................................................................................13

IGURE 3: BLOCK DIAGRAM (SINGLE UNIT).................................................................................14

F F

IGURE 4: TYPICAL CONNECTOR LAYOUT (C-BAND) ...................................................................21

FIGURE 5: TYPICAL CONNECTOR LAYOUT (KU-BAND).................................................................22

FIGURE 6: RS-232 TERMINAL MODE DISPLAY .............................................................................34

FIGURE 7: LIST OF COMMANDS (AFTER PRESSING H- HELP) IN TERMINAL MODE DISPLAY...........36

FIGURE 8: PRODUCT OUTLINE (C-BAND 250W) – DC LINE (48 V) UNIT ....................................51

FIGURE 9: CONNECTOR LAYOUT (C-BAND 250W) – DC LINE (48 V) UNIT.................................52

FIGURE 10: PRODUCT OUTLINE (KU-BAND LOW POWER) ............................................................53

FIGURE 11: TYPICAL CONNECTOR LAYOUT (KU-BAND LOW POWER)..........................................54

FIGURE 12: PRODUCT OUTLINE (REDUNDANT SYSTEM, KU-BAND LOW POWER) ........................55

FIGURE 13: PRODUCT OUTLINE SIDE VIEW (REDUNDANT SYSTEM, KU-BAND LOW POWER) ......56

FIGURE 14: MOUNTING OF A LOW POWER TRANSCEIVER ON FEED SUPPORT................................57

FIGURE 15: OUTLINE DRAWING OF C-BAND LIGHT WEIGHT 60W C-BAND TRANSCEIVER..........58

FIGURE 16: CONNECTORS OF LIGHT WEIGHT 60W C-BAND TRANSCEIVER..................................59

FIGURE 17: OUTLINE DRAWING OF C-BAND 10W C-BAND TRANSCEIVER...................................60

FIGURE 18: CONNECTORS OF 10W C-BAND TRANSCEIVER ..........................................................61

FIGURE 19: PROPOSED GUI FOR RS-485 COMMUNICATION (TRANSCEIVER SINGLE UNIT)............62

FIGURE 20: RS-232 TERMINAL MODE DISPLAY FOR REDUNDANT SYSTEM..................................63

FIGURE 21: PROPOSED GUI FOR RS-485 COMMUNICATION (TRANSCEIVER REDUNDANT SYSTEM)

................................................................................................................................................64

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TABLES

TABLE 1: PACKING L I S T F O R A WMT TRANSC EIVER......................................................... 8

TABLE 2: CONNECTORS..........................................................................................................21

TABLE 3: RELAY INTERFACE – PIN ASSIGNMENT...........................................................22

TABLE 4: RS-232 INTERFACE – PIN ASSIGNMENT............................................................

TABLE 5: RS-485 INTERFACE – PIN ASSIGNMENT............................................................

TABLE 6: ENVIRONMENTAL CONDITIONS........................................................................26

TABLE 7: SERIAL INTERFACE RS-232 CONNECTION INFORMATION..........................28

TABLE 8: LINE (J5) CONNECTOR – PIN ASSIGNMENT.....................................................28

TABLE 9: RS-232 MENU ITEM DEFINITION.........................................................................35

TABLE 10: COMPUTER TERMINAL COMMANDS FOR RS-232 INTERFACE.................37

TABLE 11: COMMAND TO TRANSCEIVER..........................................................................43

TABLE 12: CONDITION STATUS RESPONSE.......................................................................44

TABLE 13: READ IDENTIFICATION RESPONSE .................................................................45

TABLE 14: READ FREQUENCY SET RESPONSE................................................................. 45

TABLE 15: UNIT STATUS AND SWITCH POSITION RESPONSE ......................................46

TABLE 16: TRANSMITTER SPECIFICATIONS .....................................................................48

TABLE 17: RECEIVER SPECIFICATIONS..............................................................................49

TABLE 18: MECHANICAL SPECIFICATIONS.......................................................................50

TABLE 19: POWER REQUIREMENTS ....................................................................................50

23 24

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1. SAFETY

To prevent the risk of personal injury or loss related to equipment malfunction ADVANTECH AMT™ uses the following symbols for safety related information. For your own safety, please read the information carefully BEFORE operating the equipment.

Symbols used in manual:

WARNING! This indicates a hazardous procedure that could result in serious injury or death if

not performed properly.

CAUTION! This indicates a hazardous and dangerous procedure that could result in light-

to-severe injury or loss related to equipment malfunction, if proper precautions are not taken.

------------------------------------------------ WARNING ---------------------------------------------------

When supplying power to this equipment, use the 3-pin connector provided, to connect to a grounded power outlet. If power is supplied without grounding the equipment, there is a risk of receiving a severe or fatal electric shock.

In the context of this document any voltage that is lethal is viewed as ‘High Voltage’. Therefore, even prime power (90 to 264) VAC (or 48 V DC) is dangerous to handle because the prime power potentials have been known to cause injury or death.

------------------------------------------------ WARNING ---------------------------------------------------

The operator cannot repair this equipment. DO NOT attempt to remove the equipment cover or to disassemble internal components. Only qualified service technicians should service this equipment. There are high-voltage parts within this equipment that present a risk of severe injury to untrained personnel. In addition, there is a risk of damaging to precision components.

----------------------------------------------- WARNING ---------------------------------------------------

ALWAYS TERMINATE THE RF OUTPUT PORTS OF THE TRANSCEIVER WITH RF LOADS CAPABLE OF DISSIPATING FULL CW RF POWER. SIMILARLY TERMINATE THE RF INPUT PORTS TO AVOID THE POSSIBILITY OF THE UNIT BEING DRIVEN BY STRAY LEAKAGE SIGNALS. Incorporate the terminations prior to

applying prime power to the unit. This procedure prevents self-oscillation and irradiation into the local environment. Even if a source is not connected to the unit, there are situations where the transceiver can go into a self-induced mode and generate high levels of RF energy.

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Destruction caused under an excessive load voltage standing wave ratio (VSWR) will void the warranty. Although this equipment has an internal protection VSWR of greater than 3:1 and will automatically shutdown within a delay of 1 second, it is still a safe procedure to avoid the unwanted effects.

----------------------------------------------- WARNING ---------------------------------------------------

DO NOT LOOK INTO THE RF OUTPUT PORTS OF THE POWERED TRANSCEIVER. Treat the powered unit with extreme care. Keep in mind that although the

levels of microwave radiation do not induce immediate physical discomfort in most individuals the levels can be sufficiently high to induce long term effects. The eyes are the most vulnerable parts of the body.

The permissible levels of exposure are quite low compared to the power levels of the transceivers built by ADVANTECH AMT™ (e.g. less than 10 mW versus 20 to 500 W delivered by various units). The permissible levels are currently being studied by a number of organisations. In the past the U.S. safety Code established a dosage rate of 10 mW/cm2. Currently there is consideration being given to reduce the permissible level to 1 mW/cm2 in the United States, as has been the case for several European countries.

----------------------------------------------- CAUTION-----------------------------------------------------

THE UNIT IS VERY HEAVY! AT LEAST TWO OR MORE INDIVIDUALS OR AN EQUIPMENT CART IS REQUIRED TO LIFT AND MOVE THE UNIT. There is a risk of

back injury if a single person handles this equipment.

In addition to this Section, included by reference are the following pertinent sections of the International Standard IEC-215, ‘Safety requirements for radio transmitting equipment’:

Appendix D, ‘GUIDANCE ON ASSESSING THE COMPETENCE OF PERSONNEL FOR DESIGNATION AS SKILLED’ and also Sub-clause 3.1 of the Standard.

Appendix E, ‘GUIDANCE ON SAFETY PRECAUTIONS TO BE OBSERVED BY PERSONNEL WORKING ON RADIO TRANSMITTING EQUIPMENT’, also Sub-clauses 3.2,

3.7 and 22.1 of the Standard.

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2. PACKING LIST

2.1 SINGLE UNIT PACKING LIST

TABLE 1: PACKING LIST FOR AWMT TRANSCEIVER

Item

ITEMS BELOW ARE FOR RF INPUT & OUTPUT PORTS TERMINIATED WITH WR-75 FLANGE

Quantity Description Part #

1 Installation and Operating Manual PM AWMT Rev. 22 1 Transceiver, model AWMT See specifications

Connector circular MIL C-5015, straight cable plug, 3

1 roll Moisture sealing/insulating tape (mastic tape) 709-224200-001

1 Waveguide Gasket WR-75 820-075000-001

sockets, MS3106F16-10S for AC, or MS3106F2019SX for 48 V (connector for J5)

Connector circular, MIL-C-26482, 6 contacts female, straight cable plug, shell 10, MS3116F10-6S (connectors for RS-232 and RS-485 Serial Interfaces)

Connector circular, MIL-C-26482, 10 contacts female , s traight c able plu g , s h e l l 12, MS3116J12-10S (connector for RELAY Interface)

#6-32 x ½ inch Mach screw hex head 18-8 Stainless Steel (SS)

631-310616-001 for AC (or 631-310620-008 for 48V)

631-311606-001

631-311612-003

802-632090-001

10.

ITEMS BELOW ARE FOR RF OUTPUT PORTS TERMINIATED WITH CPR-137 FLANGE

11.

12.

13.

14.

4 #6 Split washer 18-8 SS 803-600100-001

1 Waveguide Gasket WR-137 705-137000-001

8 #10 Split washer 18-8 SS 803-100100-001

#6 Small Flat Washer 0.312 inch OD, 0.155 inch ID,

0.035 inch thick 18-8 SS

#10-32 x 1/2” Mach screw hex head 18-8 Stainless Steel (SS)

#10 Flat Washer 7/16 OD X.20 OD X.031 THK 18-8 SS

803-600200-002

802-103290-001

803-100200-001

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TABLE 1: PACKING LIST FOR AWMT TRANSCEIVER (Continued)

Item Quantity Description Part #

ITEMS BELOW ARE FOR RF INPUT PORTS TERMINATED WITH CPR-229 FLANGE

15.

16.

17.

18.

1 Waveguide Gasket WR-229 705-229000-001

10 #10 Split washer 18-8 SS 803-100100-001

#10-32 x 1/2” Mach screw hex head 18-8 Stainless Steel (SS)

#10 Flat Washer 7/16 OD X.20 OD X.031 THK 18-8 SS

802-103290-001

803-100200-001

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3. GENERAL INFORMATION

This manual contains information that describes the installation, operation and maintenance procedures for the hub-mount (outdoors) Solid State Transceiver, model AWMT. Because specialized training is required for some phases of installation and operation, this manual is directed only to trained personnel. Warnings appear at the appropriate points to caution all users of potential RF and high-voltage hazards.

For a safe and versatile operation, please read the information carefully BEFORE using the equipment.

ADVANTECH AMT™ has prepared this manual for use by the customers as a guide for the

proper installation, operation and maintenance of ADVANTECH AMT™ equipment and computer programs. The drawings, specifications, and information contained herein are the property of ADVANTECH AMT™. Unauthorized use or disclosure of these drawings, specifications and information is strictly prohibited. They shall not be reproduced, copied or used in whole or in part as the basis for manufacturing or sale of the equipment or software programs without the prior written consent of ADVANTECH AMT™.

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4. MAJOR SUBSYSTEMS AND THEIR FUNCTIONS

4.1 INTRODUCTION

This Section describes how the hub-mount (outdoors) solid state transceiver functions.

4.2 DESCRIPTION

The AWMT is an outdoor unit intended for mounting near the hub of an antenna (see Figure 1 at page 12 and Figure 2 at page 13). The unit incorporates a weather resistant enclosure that houses several electronic modules and a cooling system that protects the electronic components from overheating. For low power models, the cooling system consists of conduction from the module enclosure to the case. For high power models, the cooling system is forced-air, using one or more cooling fans.

Built-in monitoring and control features indicate the current status of the AWMT and provide fault detection and protection when operating outside its normal operating conditions. The AWMT also allows the user access to the monitoring and control functions by using a discrete interface, the RS-232 serial interface or the RS-485 serial interface.

A functional block diagram of a single unit is shown in Figure 3 at page 14.

The AWMT can be combined with a second unit to form a 1:1 redundant system. A redundancy kit by ADVANTECH AMT™ is available as an option.

4.3 UNIT MAJOR COMPONENTS

The AWMT transceiver consists of the following major components:

• IF to L-Band Up-Converter Module,

• L-Band to RF Up-Converter Module,

• Power Amplifier Module,

• L-Band to IF Down-Converter Module,

• RF-Band Low Noise Block

• Waveguide Assembly,

• 10 MHz Reference Oscillator,

• Main Controller Board,

• Power Supply,

• Current Sensor, and

• Power Monitor Board.

These components are interconnected using dedicated wiring harnesses and coaxial cables. To clarify the explanation of the components in the following paragraphs, refer to the block diagram

Figure 3 at page 14.

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Figure 1: Product Outline (C-Band)

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Figure 2: Product Outline (Ku-Band)

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LNX

MON

OUTPUT

WR75

TX_OUT

W/G ARM ASSEMBLY

HPA ASSEMBLY

RV_PWR

FW_PWR

RS-485_PA

MUTE_PA

ALM_PA GND

-9 V

+12 V

GND

RS-485_L-RF

ALM_L-RF

GND

REF

RELAY

Y A L E R

MAIN CONTROLLER BOARD

RS-232

2 3 2

S R

RS-485

THERM

MUTE_PA

ALM_L-IF

ALM_L-RF

ALM_PA

ALM_IF-L

RS-485_IF-L

RS-485_PA

RS-485_L-IF

REDUND

5 8 4

S R

CURRENT

SENSOR

RX_IN

+15 V

L-BAND IN

RS-485_PM

POWER

MODULE

MONITOR

MUTE_L-IF

RS-485_L-RF

REF

+12 V

-9 V

GND

RS-485_RF-L

RF TO L-BAND

ALM_RF-L

(optional, for LNA)

MUTE_RF-L

DOWN-CONVER TER

GND

TRANSM

LEDs

RECEIVE

LEDS

+12 V

-9 V

GND

L-BAND TO RF UP-CONVERTER

RS-485_IF-L

ALM_IF-L

GND

+12 V

-9 V

GND

10 MHz

FAN

REFERENCE OSC

COOLING

+ 12 V

LNX_REF

REF

+12 V

-9 V

GND

L-BAND TO IF

DOWN-CONVERTER

RS-485_L-IF

ALM_L-IF

MUTE_L-IF

GND

+ 15 V

- 9 V

+ 5 V

POWER

SUPPLY

0 ... 48V (FAN)

THERM

IF TO L-BAND UP-CONVERTER

LINE

GND

NEUTRAL

TX_IN

L_OUT

RX_OUT

AC LINE

(or 48 V DC)

Figure 3: Block Diagram (Single Unit)

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4.3.1 IF TO L-BAND UP-CONVERTER MODULE

The IF/L-Band Up-Converter Module converts and amplifies the incoming IF carrier into L-Band carrier.

Incorporated into the module is an attenuator with a 20-dB adjustable range. The attenuator is used to adjust transmit (Tx) gain of the AWMT.

The synthesiser within the module contains an out of lock protection circuitry that prevents the L-Band carrier from shifting in frequency. When the oscillator is not phase-locked with the 10 MHz reference, an Alarm signal is sent to the main controller board and the up-converter module will mute automatically.

The operating frequency for the synthesiser and the attenuation are externally controlled by a serial signal from the main controller board. The transmitting frequency is adjustable in 1 MHz steps.

4.3.2 L-BAND TO RF UP-CONVERTER MODULE

The L/RF Up-Converter Module converts and amplifies the incoming L-Band carrier into the desired RF-Band carrier.

4.3.3 L-BAND TO IF DOWN-CONVERTER MODULE

The L/IF-Band Down-Converter Module converts and amplifies the incoming RF signals into the desired IF frequency range.

Similarly as for the up-converter modules, a 10 MHz high stability reference signal is used to phase-lock an internal synthesiser.

The operating frequency for the synthesiser and the input attenuation are externally controlled in the same manner as for the IF/L-Band Up-converter module. The receive (Rx) frequency is adjustable in 1 MHz steps.

The out of lock protection circuitry within the synthesiser functions similarly as for the IF/L-Band Up-Converter Module.

The L/IF module provides +12 VDC and the 10 MHz reference to the LNB

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4.3.4 POWER AMPLIFIER MODULE

The Power Amplifier Module amplifies the RF signals arriving from the L/RF up-converter module.

Temperature sensors are installed at the module’s hot spots to prevent the RF devices from overheating and operating at temperatures exceeding 85ºC.

The power amplifier will be in the Mute mode if the user sends a MUTE command through the Relay or serial interfaces.

The power amplifier will shut down if the hot spot temperature exceeds +85 °C and any of the GaAs FET devices fails.

4.3.5 W

AVEGUIDE ASSEMBLY

The Waveguide Assembly contains a forward and reflected power detector, an RF output circulator and the harmonic filters.

The forward power and the reflected power detectors monitor the RF output power level and the reflected power level respectively. The digital signals are sent to the Main Controller Board.

The circulator provides a VSWR protection at the RF output port. The termination load of the isolator is capable of fully absorbing any reflected power.

4.3.6 L

OW NOISE BLOCK (LNB)

The LNB functions as a low noise amplifier and a frequency down converter. The RF input signals are shifted downwards into the L-Band frequency range. Following the conversion the L-Band signals are amplified to a power level sufficient for transmission into the L-Band to IF Down-Converter module.

4.3.7 10 MHz R

EFERENCE OSCILLATOR

This module is used to generate a highly stable and very low phase noise 10 MHz reference frequency with a high stability (of ±5 x 10

-8

MHz/year typical), which is required by all of the converter modules and the LNB. A 10 MHz reference is sent to each converter module via a coaxial cable. The oscillator requires approximately 10 minutes to warm up after the transceiver is power up.

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4.3.8 MAIN CONTROLLER BOARD

The Main Controller Board contains a microprocessor controller that performs all of the monitoring and control, input/output communication and the decision-making. The main controller board provides:

1. Fault detection and indication from each module of the unit,

2. Mute control and indication (Tx and Rx),

3. Forward RF power indication,

4. Reflected RF power indication,

5. Redundancy control (Tx and Rx),

6. Frequency control (Tx and Rx),

7. Unit Gain control (Tx and Rx), and

8. All interfaces.

4.3.8.1 FAULT Detection and Indication

The Tx path of the unit will automatically go into a shutdown mode and send a message to all of the external interfaces when any one of the following occurs:

1. The local oscillator within the up-converter module is out of lock.

2. The hotspot temperature exceeds 85°C.

3. Any of the GaAs FET devices failed.

4. Current of +12 VDC supply is out of range.

5. Load VSWR at RF output port (transmit path) exceeds 3.0:1.

The Tx path of the AWMT continually monitors the internal temperature and the current consumption. It also has an automatic shutdown feature to prevent operation at excessive temperatures. The unit will automatically restart when the hotspot temperature falls below 65°C.

The Rx path of the unit will automatically go into a shutdown mode and send a message to all of the external interfaces if:

1. The local oscillator within the L/IF down-converter module is out of lock.

2. The LNX and L/IF down-converter current is out of range

4.3.8.2 Tx MUTE Control

The user can remove the RF output power for the Tx path remotely by:

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1. Leaving unconnected pins G and H of the Relay interface (see Section 5.1 at page 19).

2. Sending a mute command in terminal mode through the serial interface.

This feature is useful if the user wishes to perform a maintenance check or to check out the transmission system.

4.3.8.3 Rx MUTE Control

The user can remove the RF output power for the Rx path remotely by:

1. Leaving unconnected pins J and H of the Relay interface (see Section 5.1 at page 19).

2. Sending a mute command in terminal mode through the serial interface.

4.3.9 P

OWER SUPPLY

The Power Supply Module provides +12 VDC, +5 VDC and –9 VDC outputs to all of the internal modules.

The separate +48 VDC is necessary to operate the cooling fan. The voltage is variable and temperature dependent that will ensure a variable rotation speed of the cooling fan related to the temperature (the fan will rotate slower when the temperature is low and faster when the temperature is high).

The power supply is configured to operate from a 90-138 or 180-264V AC (autoranging), 47-63 Hz, single phase supply, or from 48 V DC (see specifications).

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5. INTERFACES

Each transceiver provides five interfaces that can be used to connect the unit to several optional external devices. The interfaces for this model are listed below:

1. Relay (Discrete) Interface: This interface offers the essential monitoring and control of the

transceiver by the discrete signals.

2. RS-232 Interface: This interface offers the operator essential monitoring and control of the

transceiver using a PC with Term95 or HyperTerminal communications programs.

3. RS-485 Interface: This interface offers the complete monitoring and control of the AWMT

transceiver through the RS-485 serial communication port in packet mode. The system may be connected to a Monitor & Control Panel or to a Network Manager System (NMS)

4. RF Output Monitor Interface: This interface provides a sample of the output power of the

unit through a 40-dB coupler.

5. Redundancy Interface: The redundant interface provides the communication link between

the two AWMT micro-controllers within a 1:1 redundant system. This interface also provides control over a redundancy waveguide switch.

6. TX & RX LED’s: green/red LED’s indicating the state of the transmission & receive paths.

• If this LED is not lit, the unit is not powered (or the power supply failed). In redundant systems, if this LED is not lit it indicates that the unit is in STAND-BY and in MUTE.

• If this LED is RED lit, it indicates that the unit is in FAULT or ALARM condition.

• If this LED is blinking RED, it indicates that the unit is in MUTE state (following a

MUTE command).

• If this LED is GREEN lit, it indicates that the unit is functioning properly. In redundant system if the LED is GREEN lit indicates that the unit is ON-LINE. If it is blinking GREEN it indicates that the unit is in STAND-BY and NOT MUTE (RF ON).

5.1 RELAY INTERFACE

The Relay Interface uses a 10-pin circular connector mounted on the transceiver enclosure. The connector type is listed in TABLE 2 at page 21 and the location is shown in Figure 4 at page 21 and in Figure 5 at page 22. The pin assignment for this interface is shown in TABLE 3 at page

22.

Pins A, B and C of the connector are of Form-C relay type outputs that provide for the user an indication of informing the status of the transmission path of the AWMT unit.

Pins D, E and F of the connector are of Form-C relay type outputs that provide for the user an indication of informing the status of the receive path of the AWMT unit.

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Pins G and H of the connector are input lines, allowing the user to mute or un-mute the RF transmit path of the AWMT.

Pins J and H of the connector are input lines, allowing the user to mute or un-mute the RF receive path of the AWMT.

CAUTION! If pin G is not connected to pin H, the transmission path will remain disabled. If pin

J is not connected to pin H, the receiving path will remain disabled.

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TABLE 2: CONNECTORS

Connector Function Description Mating Connector

(J1) Tx In IF Input N - Type (F) N - Type (M)

N – Type (F) Low Power Output N – type (M)

(J7) RF Out RF Output

(J4) Mon RF Output Monitor N - Type (F) N - Type (M)

(J10) LNX

(J11)Rx Out IF Output N - Type (F) N - Type (M) (J2) RS-232 Serial Interface MS3112E10-6P (M) MS3116F10-6S (F)

(J12) RS 485 Serial Interface MS3112E10-6P (M) MS3116F10-6S (F)

(J3) Relay Discrete Interface MS3112E12-10P (M) MS3116F12-10S (F)

(J6) Red Redundancy Interface MS3112E16-26P (M) MS3116F16-26S (F)

(J5) Line

(J9) 10 MHz

(J13) +12V

LNX

or L OUT

L-Band Input

(from LNB)

AC Line MS3102R16-10P (M) MS3106F16-10S (F)

48 V DC MS3102R10SL-3P (M) MS3106F20-19SX (F)

10 MHz External

Reference (optional)

+12V TO LNX

or L-Band OUT

(optional)

WR 75 (Flat) Ku-Band

High Power Output

CPR 137 (Grooved) C-Band

High Power Output

N - Type (F) N - Type (M)

MS3112E8-3S (F)

or N - Type (F)

WR 75 (grooved)

CPR 137

(Flat or grooved)

MS3116F8-3P (M)

or N - Type (M)

Figure 4: Typical Connector Layout (C-Band)

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Figure 5: Typical Connector Layout (Ku-Band)

TABLE 3: RELAY INTERFACE – PIN ASSIGNMENT

Pin Signal Name Description

A Tx AL-NC B Tx AL-COM Common contact of the Tx ALARM Form - C relay.

C Tx AL-NO

D Rx AL-NC E Rx AL-COM Common contact of the Rx ALARM Form - C relay.

F Rx AL-NO

G Tx MUTE

H MUTE-COM Common contact of the Tx MUTE and Rx MUTE Commands

J Rx MUTE

K AN_OUT

Normal closed contact of the Tx ALARM Form - C relay. Pin A closed to pin B indicates ALARM in the transmission path.

Normal open contact of the Tx ALARM Form – C relay. Pin C open relative to pin B indicates ALARM in the transmission path. Normal closed contact of the Rx ALARM Form - C relay. Pin D closed to pin E indicates ALARM in the receive path.

Normal open contact of the Rx ALARM Form - C relay. Pin F open relative to pin E indicates ALARM in the receive path.

Tx MUTE command:

If pin G is NOT connected to pin H, the transmission path is in MUTE. If pin G is connected to pin H, the transmission path is ON.

Rx MUTE command:

If pin J is NOT connected to pin H, the receive path is in MUTE. If pin J is connected to pin H, the receive path is ON.

Analogue Output - Output Power Monitor (voltage: 5 V DC at rated P1dB; > 0 V DC at 20 dB back-off)

AWMT

5.2 RS-232 INTERFACE

This serial communication interface offers to the operator the essential monitoring and control of the AWMT using any PC terminal software. An IBM compatible personal computer can be connected to this port. The interface uses a 6-pin circular connector mounted on the AWMT enclosure. The type of mounting connector is listed in TABLE 2 at page 21 and the location is shown in Figure 4 at page 21 and in Figure 5 at page 22. The pin assignment for this interface is shown in TABLE 4 below.

TABLE 4: RS-232 INTERFACE – PIN ASSIGNMENT

Pin Type Signal Name Description

A N/C N/A

B N/C N/A C Input RX

D Output TX

E DC supply +5V F Common GND

5.3 RS-485 INTERFACE

This serial communication interface provides access to all monitor and control functions for the AWMT transceiver.

This interface uses a 6-pin circular connector mounted on the AWMT unit enclosure. The type of mounting connector is listed TABLE 2 at page 21 and the location is shown in Figure 4 at

21 and in Figure 5 at page 22. The pin assignment for this interface is shown in TABLE 5

page at page 24.

The RS-485 interface used in a redundant system must be connected to the Network Management System (NMS). The NMS will have access to both units that discriminates the two by address.

If this interface is being used, an interconnecting cable with the proper mating connector must be fabricated.

Not connected Not connected Serial receive RX Serial transmit TX

Power supply for hand held terminal Serial common

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TABLE 5: RS-485 INTERFACE – PIN ASSIGNMENT

Pin Type Signal Name Description

A Output TX+

B Output TXC Input RX+

D Input RX-

E N/C N/A F Common GND

5.4 REDUNDANT INTERFACE

The Redundant Interface connections are made with a 26-pin circular connector mounted on the AWMT enclosure. The connector location is shown in Figure 4 at page 21 and in Figure 5 at page 22. A redundant system cable is provided with the redundancy kit that provides the interconnection between the two AWMT units and the waveguide switches.

5.5 RF OUTPUT MONITOR INTERFACE

This RF output sample port is located at the Mon connector, which is mounted on the AWMT enclosure. The type of mounting connector is listed in TABLE 2 at page 21 and the location is shown in Figure 4 at page 21 and in Figure 5 at page 22. This interface is used for the independent monitoring of the AWMT output before the isolator and the harmonic filter. A table of the coupling factor versus the frequency is provided with each unit.

Serial transmit TX+ Serial transmit TXSerial receive RX+ Serial transmit RX-

Not connected Safety ground / Shield

AWMT

6. UNPACKING AND INSTALLATION

This Section contains instructions for the site preparation, unpacking and the installation of the AWMT transceiver.

6.1 INITIAL INSPECTION

Inspect the shipping container for damage resulting from the shipment. If damaged, immediately contact the carrier that delivered the equipment and submit a damage report. Failure to do so may invalidate future claims.

6.2 UNPACKING

Carefully remove all of the items from the shipping container. Save all of the packing material until completing successfully the visual inspection. Verify that all of the items listed on the packing list have been received. If any of the items are missing, contact ADVANTECH AMT™ immediately. Inspect all of the items for evidence of damage resulting from the shipment. If damage seems evident, immediately contact the carrier that delivered the equipment and file a claim. Failure to do so may invalidate future claims. Check the AWMT thoroughly for damaged or loose parts.

6.3 INSTALLATION

Installation of the AWMT requires the following phases: Relay, Serial Interface and AC (or DC) Power interconnecting cable construction Environmental and adequate ventilation considerations Mechanical, RF and electrical installation

TABLE 2 at page 21 lists all of the mounting connectors used by the AWMT unit and their corresponding mating connectors. location of the mounting connectors.

6.3.1 RELAY, SERIAL INTERFACES AND AC (OR DC) POWER CABLES CONSTRUCTION

Prior to constructing the interconnecting cables, verify that the all of the cables are of sufficient length in order to connect the AWMT unit to the user’s remote monitor and control system. Construct the Relay, RS-232, RS-485 serial interfaces and AC (or DC) Power interconnecting cables as follows:

Figure 4 at page 21 and in Figure 5 at page 22 show the

AWMT

1. To use the Relay interface, construct the interconnecting cable using the mating connector

provided in the shipping kit (see TABLE 2 at page 21). Refer to TABLE 3 at page 22 for the correct pin assignment.

2. To use the RS-232 serial interface, construct an interconnecting cable with a proper mating

connector as given by TABLE 2 at page 21. Refer to TABLE 4 at page 23 for the correct pin assignment.

3. To use the RS-485 serial interface, construct an interconnecting cable with a proper mating

connector as given by TABLE 2 at page 21. Refer to TABLE 5 at page 24 for the correct pin assignment.

4. Construct an AC (or DC) power cable with a proper mating connector as given by TABLE 2 at page 21. For the correct pin assignment, refer to TABLE 8 at page 28.

6.3.2 ENVIRONMENTAL AND ADEQUATE VENTILATION CONSIDERATIONS

The AWMT contains a forced air cooling system, which prevents the internal components from overheating. The cooling subsystem consists of a single fan operating at a variable speed to effectively distribute and remove the air from within the AWMT unit.

Prior to installing the AWMT, verify that:

1. Environmental conditions listed in TABLE 6 below will be met.

TABLE 6: ENVIRONMENTAL CONDITIONS

Temperature: Non-operating (continuous exposure)

Operating (ambient) Relative Humidity: 100% max., condensing, up to 2”/hr rain Altitude: 10,000’ AMSL, derated 2° C / 1,000’ from AMSL

2. A minimum clearance of 30-cm (12 inches) is necessary in front of the air intake and exhaust openings on the AWMT mounting-frame.

3. The fan intake grill and the exhaust openings of the AWMT are free of obstructing debris.

CAUTION! Obstructing objects and/or debris may reduce the efficiency of the cooling system

and significantly impact the transceiver longevity.

6.3.3 MECHANICAL, RF AND ELECTRICAL INSTALLATION

1. Bolt the AWMT on to the antenna hub by using the six mounting holes provided by the enclosure, see Figure 1 at page 12 and Figure 2 at page 13.

2. For AWMT units equipped with a waveguide flange at the RF output port:

- 50° C to + 85° C

- 30° C to + 55° C

AWMT

a. Position the interconnecting waveguide system flange so that it aligns precisely with the

flange of the RF output port.

b. Install the supplied waterproof gasket (supplied in the packing list) on to the

interconnecting waveguide flange.

CAUTION: To protect the inside pressure window installed by ADVANTECH AMT™, do not

pressurise the waveguide interior above 2-3 psi of pressure.

c. After alignment verification, loosely attach the interconnecting waveguide on to the RF

output port using the hardware provided in the shipping kit.

d. Carefully tighten all bolts (in opposite pairs rather than sequentially around the perimeter

of the flange) so that the connection is firm.

CAUTION! Do not over-tighten the waveguide flange screws. Over-tightening the screws may

cause the stripping of the threads or distort the mating flange. The recommended torque is 30 in-lbs for the screws.

7. For AWMT units equipped with an N type female connector at the RF output port, connect to the port a transmission line equipped with an N type male connector.

4. Ground the AWMT by attaching a #6 gauge copper wire to the ground terminal provided by the unit enclosure and to a properly grounded structure.

5. To use the Relay interface, attach the interconnecting cable fabricated per Section 6.3.1 at page 25 to the Relay connector of the AWMT. Connect the free end of the interconnecting cable to the operator’s monitor and control system.

NOTE: Whether this interface is being used or not, it is necessary to connect pin G of the

Relay connector to pin H (common) in order to enable (un-mute) the transmission path. If pin G of this interface is not connected to pin H, the transmission path of the unit will remain muted. Also it is necessary to connect pin J of the Relay connector to pin H (common) in order to enable (un-mute) the receiving path. If pin J of this interface is not connected to pin H, the receiving path of the unit will remain muted.

6. To use the RS-485 interface, connect the interconnecting cable fabricated per Section 6.3.1 at page 25 to the RS-485 port of the AWMT.

7. To use the RS-232 interface, then: a. Connect the interconnecting cable fabricated per Section

port of the AWMT.

6.3.1 at page 25 to the RS-232

b. Attach to the free end of the interconnecting cable a 9-pin or 25-pin D-type connector

with a pin assignment as listed in TABLE 7 at page 28.

c. Attach the cable with the 9-pin or 25-pin D-type connector to RS-232 port of a personal

computer.

AWMT

TABLE 7: SERIAL INTERFACE RS-232 CONNECTION INFORMATION

Serial Interface

RS-232 Pin

C D E +5 VDC power source

F Common

8. Connect the IF input source to the N-type female connector at the Tx In input port.

9. Verify that AC (or DC) power source is switched OFF.

10. Verify that the AC (or DC) power source can satisfy the power requirements given by the AWMT specifications.

WARNING! Proper grounding of the AC (or DC) power outlet is necessary for personnel

and equipment safety. Improper grounding may cause serious injury or death of the operator.

11. Using the AC (or DC) power cable fabricated per Section 6.3.1 at page 25, connect one end of the power cable to port (J5) of the AWMT.

Active Condition

RX Í 3 TX Î 2

RS-232 at PC Pin

DB-9 DB-25

2 3

CAUTION! Ensure that the proper pin is selected for AC (or DC) operation. Applying power on

the wrong pin may permanently damage the AWMT necessitating factory repair. Refer to TABLE 8 below for the correct pin assignment.

12. Connect the remaining end of the cable to the AC (or DC) power source.

TABLE 8: LINE (J5) CONNECTOR – PIN ASSIGNMENT

Description

Units with DC Supply Units with AC Supply

+48 V DC Phase (live) A

Ground Ground B

48 V RETURN Neutral C

13. If necessary, connect a power meter or a spectral analyser to the RF output monitor port (Mon).

AWMT

7. PRE-POWER AND SYSTEM CHECKOUT

This Section describes the pre-power procedure for the AWMT.

WARNING! The information presented in this Section is addressed to technicians who

have specific training in, and knowledge of Microwave Power Transceivers. Inappropriate use of the AWMT may cause serious injury to the operator or may result in damage of the unit. Do not attempt to operate the AWMT before becoming thoroughly familiar with the contents in this Section.

NOTE: When prime power is ON, the main controller board will start operating!

7.1 PRE-POWER PROCEDURES

Before applying power to the AWMT, verify that the following conditions are met:

7. Verify that the voltage of the station’s AC (or DC) prime power matches with the value marked on the ID label.

8. The prime power station is properly grounded.

9. All cable and waveguide connections are secure and there is no evidence of pinched wires and loose hardware.

10. The circuit breaker at the prime power station is switched OFF.

11. The IF input and RF output ports are connected to a matched source and a proper load capable of withstanding full CW RF power.

12. The cooling fan is unobstructed.

7.2 OPERATIONAL SETTINGS VERIFICATION

The AWMT arrives with all of its factory-pre-set operational values that meet the requirements of a typical installation. Before starting the unit at the installation site, check the configurable settings and if necessary, reset to meet the customer’s requirements.

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8. OPERATION

8.1 INTRODUCTION

This Section describes the normal operation of the AWMT. The design of this equipment allows for minimal operator intervention and maintenance.

The AWMT may be monitored and controlled via the serial interfaces, or the Relay interface. The Relay interface provides for the user an alarm indication and remote RF mute capability of the designated AWMT unit. The RS-232 and the RS-485 serial interfaces provide access to the AWMT functions, including the monitoring of key operating parameters, gain control (in both transmission and receive paths), transmission/receive frequency control and shutdown.

8.2 SAFETY CONSIDERATIONS

WARNING! Prolonged operation without a load at the output may cause severe bodily

harm, loss of sight and even death. Do not operate the transceiver if the RF output connector is not connected to a load.

Please note that an AWMT failure due to the above condition will be attributed to abuse or neglect and will not be covered by the standard warranty.

8.3 BASIC OPERATING PROCEDURE

Perform the following operating procedure:

1. Verify that the ‘Pre-Power and System Checkout’ procedure as described in Section 7 at page 29 was performed successfully.

2. Switch ON the main power source.

3. Allow at least ten seconds for the software to boot into the PC.

4. If using either the RS-232 or the RS-485 interface, set up the serial communication linkage between the AWMT and the user’s computer terminal. See Section

8.5 at page 33. Press t2

(command to switch to PC Terminal) and <ENTER> in Term95 or HyperTerminal communications program.

AWMT

CAUTION: The unit will always start in RF ON (NOT MUTE) state, provided the correc

connections are installed at the Relay Interface. In order to set the unit functional, connect the

umpers on the Relay Interface between pins G and H (to un-mute the transmission path) and

between pins J and H (to un-mute the receive path).

5. Ensure that the IF input signal is being applied to the Tx In port of the AWMT.

6. Adjust the frequencies of the transmission and receive paths in MHz.

7. Adjust the gain of the transmission and receive paths.

8. Allow the AWMT to warm up for 30 minutes, ensuring that all of the electrical specifications are met.

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8.4 AUTOMATIC LEVEL CONTROL (ALC)

The unit has Automatic Level Control feature (ALC) that will keep the Tx output level at a previously set value. Normally the unit should work with 10 dB less gain (set by operator) than the maximum gain, in ALC mode and at an output power 3 to 15 dB back-off from P1dB. The 10 dB less gain set is necessary as a reserve, in order to allow the ALC system to ensure a constant output power in case the input power dropped.

The output power is monitored via an output power detector that sends to the Monitor & Control Board an analogue voltage signal proportional with the actual output power. This signal is converted into a digital value and stored in a calibration table putting in correspondence digital values with actual output power levels. After a certain output power is set (by setting a certain gain level to the unit) the M&C is able to maintain this set output power level by increasing or decreasing the attenuation command signal that is sent to the attenuator for gain control. An ALC control loop is so created ensuring the maintaining of the output power at the set level when the input power varies.

The ALC command may be followed by a value of the needed output power level and in this case the target power will be set to that value. If the ALC command is not followed by any value, the current value of the output power level will be considered as target value.

Note that if the ALC feature is ON, the gain control is not available for the operator. The ALC “high” alarm is issued when the input power is too high and the attenuation reached the

maximum allowable value (the attenuator cannot ensure enough attenuation of the input power). The ALC “low” alarm is issued when the input power is too low and the attenuation reached the

minimum allowable value (even with 0 dB attenuation, at maximum gain set, the input power level is too low for maintaining the target output level).

Up-CONVERTER

GAIN CONTROL

AMPLIFIER

MONITOR

AND

CONTROL

ALC LOOP

30 dB

OUTPUT POWER

DETECTOR

AWMT

8.5 USING THE AWMT SOFTWARE

The RS-232 and the RS-485 interfaces provide the serial communication between the user’s monitoring and control system and the micro-controller within the AWMT. The user may employ any RS-232 terminal communications software (Term95, HyperTerminal or equivalent) or the RS-485 serial communication protocol.

8.5.1 USING THE RS-232 INTERFACE

Before using the RS-232 Interface, become thoroughly familiar with the items listed in TABLE 9 at page 35 and TABLE 10 at page 37.

Operate the AWMT via the RS-232 Interface as follows:

1. Switch on the power station’s circuit breaker to power up the AWMT.

2. Run any terminal program in the personal computer.

3. Use the following communication parameters:

- Bits per second: 19200

- Data Bits: 8

- Parity: None

- Stop bits: 1

- Flow Control: None

4. After running the program in the computer and pressing the <ENTER> key a display similar to Figure 6 below will be shown.

NOTE: The micro-controller determines automatically whether the unit is functioning

alone or in a 1:1 redundant system.

5. If necessary, to change the status of the AWMT, use the commands listed in page

37.

TABLE 10 at

NOTE: At start up the AWMT is in the hand-held Terminal Mode. To change to PC

Mode, type ‘t2’ and then press <ENTER>. For operation with the Hand Held Terminal type ‘t1’.

If the Hand Held Terminal model 8045 is used for the RS-232 communication with the unit, the adequate configuration should be set. In order to set the configuration:

- While simultaneously pressing the CTRL, SHIFT keys press the F1 key.

- In the menu displayed use F1 key to change parameters, F2 & F3 keys to navigate, F4 key to quit (without changing parameters) and F5 key to save the changed values for parameters. Type again F4 to exit the menu. The required values for parameters are:

- BAUD RATE: 19200

- DATA BITS: 8

- PARITY: NONE

- STOP BITS: 1

AWMT

Figure 6: RS-232 Terminal Mode Display

AWMT

TABLE 9: RS-232 MENU ITEM DEFINITION

Item Description

S/N

Soft

Unit Pos

Name MAC

Current

TxF

TxF Shift

FPWR

TxGain

Tx Stat RPWR

RxF

RxF Shift

Rx Level

AWMT serial number Version number of the main controller software within the AWMT. Indicates the position of the unit A or B. (1:1 redundant system only).

Indicates the name of the AWMT. Indicates the serial address of the AWMT main controller (in hex). Indicates the 12 VDC current consumption of the AWMT, in amperes.

Indicates the transmission frequency of the AWMT in MHz. Indicates the local oscillator frequency of the transceiver transmission path in

MHz. Indicates the forward power of the transceiver (transmission path output power) in dBm.

Indicates the transmission Gain in dB. Indicates the transmission status (On or Mute). Indicates the reverse (reflected) power of the transceiver (the transmission

path reflected power) in dBm. Indicates the receive frequency of the transceiver in MHz.

Indicates the local oscillator frequency of the transceiver receive path in MHz. Indicates the receive path output power level (not available for the unit).

RxGain

Rx Stat

LNx Curr

Temp HS

Elaps Time

Alarms

Ref

Indicates the receive gain in dB Indicates the receive status (On or Mute) Indicates the current consumption of the Low Noise Block Down Converter

(LNB) in amperes. Hot spot temperature of the unit in degrees Celsius. Power Supply DC Voltage Elapsed Time from the first start-up of the unit (days:hours)

Provides the alarm and fault messages and the normal status message:

1. Alarm (excess +12 VDC current, faulty RF devices, power supply failure, IF-L or L-RF up-converter modules failure, L-IF down-converter module failure, low power alarm, high power alarm).

2. Temperature Pre-Alarm (hot spot temperature exceeds 75 ºC)

3. Out of Lock of the PLL in IF-L or L-RF up-converter modules, or in L-IF down-converter module triggering a shutdown

4. High Reflected Power shutdown

5. Overdrive Alarm (output power exceeds by 1.5 dB the rated P1dB)

6. Temperature shutdown (hot spot temperature exceeds 85ºC)

7. OK (AWMT transceiver is functioning properly).

Reference (internal or external)

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Figure 7: List of commands (after pressing h- Help) in Terminal Mode Display

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TABLE 10: COMPUTER TERMINAL COMMANDS FOR RS-232 INTERFACE

Command Description Response

h Help function

<ENTER>

ENTER key of keyboard

txo Tx PLL stat rxo Rx PLL stat

tmp Temperature

nam Set unit name

txf Set Tx freq

txg Set Tx gain

tsw Tx Switch

txm Tx Mute

txu Tx Unmute

tme Time(h:m:s)

dat Date(d:m:y)

rxf Set Rx freq

rxg Set Rx gain snb Serial number

mac MAC address

cur Consumption

alm Alarms

sst

psn

rxm

rxu

Status

Unit position

Rx Mute

Rx Unmute

Provides the list of commands that can be used to modify the status of the AWMT.

Provides and refreshes the main menu display on the computer monitor screen.

The status of the transmission PLL will be displayed. The status of the receive PLL will be displayed. The hot spot temperature of the AWMT will be displayed. Allows for a name to be attributed to the AWMT. Allows for the adjustment of the transmission frequency of the

AWMT, in MHz. Allows for the adjustment of the transmission gain of the AWMT in

dB. (Tx gain range: 51 to 71 dB) Allows for the switching of the transmission from one unit to the other

(redundant system only). Transmission Mute command. The transmission path of the AWMT is muted. (no RF output power) Transmission un-mute command. The transmission path of the AWMT is enabled. Current time will be displayed. (in format hour : minutes : seconds) Current date will be displayed. (in format day : month : year) Allows for the adjustment of the receiving frequency of the AWMT in MHz. Allows for the adjustment of the receiving gain of the AWMT in dB. (Rx gain range 60 to 80 dB) Displays the serial number of the AWMT. Displays the main controller address. Displays the DC current consumption of the AWMT. Displays the ALARMS of the AWMT. (OK if no alarm) Displays the system status. (redundant system only) Displays the position of the AWMT in the redundant system. (A or B, redundant system only) Receiving Mute command. The receive path of the AWMT is muted. (no IF output power). Receiving un-mute command. The receive path of the AWMT is enabled.

AWMT

TABLE 10: COMPUTER TERMINAL COMMANDS FOR RS-232 INTERFACE

Command Description Response

fpw Forward PW

rpw Reflected PW

rsw Rx Switch

lnx LNX Current

t1 Hand held t2 PC term

rfs Rx freq shift

tfs Tx freq shift

dnl download lng LNB Gain Set

stc lnr

lnv ssw

Tx Start LNB Reference

LNX Voltage Simultaneous

switching

Displays the forward transmission output power in dBm. Displays the reflected transmission power in dBm. Allows for the switching of the receiving from one unit to the other

(redundant system only). Displays the current consumption of the LNx in mA.

Selects the hand-held Terminal Mode. Selects the PC Terminal Mode. Displays the frequency of the receiving path Local Oscillator. Displays the frequency of the transmission path Local Oscillator. Allows the AWMT to go into the download mode.

The gain read on the LNB is supplied to the system, in order to compute the overall Rx Gain.

Start condition of Tx (on, mute, or previous state) Status of LNB Reference (on, off)

Status of voltage sent to LNX (on, off)

Simultaneous switching of Tx and Rx (in redundant systems) – on, off

tml

rml

ver

rdt

rdr

tll

elt

alc

fss

Tx L-Band Signal Level

Tx MUTE logic

Rx MUTE logic Elapsed Time

Software Version Automatic Level

Control Frequency Step

Size Set Redundancy

transmission Set Redundancy

receive

L-Band transmission signal, in dBm

Set Tx MUTE logic (normal, reverse). In normal logic, the unit is mute if the strap on Relay Interface is not installed.

Set Rx MUTE logic (normal, reverse). In normal logic, the unit is mute if the strap on Relay Interface is not installed.

Elapsed time from first start-up of the unit is displayed (days:hours) Indicates the software version downloaded in the unit Set ALC (on, off, <pwr>)

Set frequency control step size (1MHz, 125 kHz)

Set redundancy for transmission

Set redundancy for receive

AWMT

8.5.1.1 Downloading the Customer Supplied Software

If it is required to change the internal software features, then download the supplied software as follows:

1. Create a new folder in the hard drive of a PC.

2. From the supplied source, copy the file “dlapp2000.exe” and the file with extension “.hex” into this folder.

3. Make R2-232 connection between PC and the unit.

4. Disconnect redundancy cable from unit (in case of a redundancy system).

5. Run the terminal mode program provided by the PC.

6. Run the “big terminal” mode (command “t2”).

7. From the terminal mode type “dnl” command and press <Enter>. The message “Enter <yes> to confirm download” appears on the display.

CAUTION: Typing <yes> for download will cause the contents in the non-volatile

memory to be cleared. If the user desires to retain the contents in the non-volatile memory, any other key may be pressed.

8. Follow the screen instructions to set download mode.

9. After several seconds, the LED on the unit will flash red-green and the message “Ready for download from RS232” after typing <yes>.

From this moment, the memory of the unit is cleared! It is necessary to download the application!

10. Close the terminal mode program.

11. Open the new folder and start the dlapp2000.exe program.

The DLAPP2 display with instructions appears on the screen.

12. At the prompt type “s[space]comX” and then press <Enter>.

NOTE: X is the number of the communication port connected to the unit.

13. At the prompt type “pl[space] 19200 and then press <Enter>.

14. At the prompt type “l[space] filename.hex” and then press <Enter>.

15. After 20–30 seconds the download process should start. You will see progress on the screen.

16. When loading is complete, press ”q” and <Enter> to close “dlapp2000”.

17. Go to the terminal and check unit’s settings.

If download process was interrupted, it is need to restart power of the unit and start download process again without items from 6 to 9.

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8.5.2 USING THE RS-485 INTERFACE

In order to use this interface, refer to Section 10 APPENDIX A: RS-485 SERIAL COMMUNICATION PROTOCOL at page 42.

AWMT

9. MAINTENANCE

This Section describes the scheduled maintenance procedure for the AWMT.

CAUTION! Improper maintenance of the AWMT may void the warranty.

9.1 PREVENTIVE MAINTENANCE

This product requires minimal maintenance, which consists of visual inspection and cleaning.

WARNING! The person performing maintenance of this equipment must have training

and knowledge of both the product and the safety requirements and issues related to the equipment. Read and practice the safety guidelines in Section 1 at page 6.

9.2 MECHANICAL PREVENTIVE MAINTENANCE

Mechanical preventive maintenance consists of verifying the condition of all mechanical parts, with the AC (or DC) power switched off. Perform the following inspection:

1. Check all connectors and plugs for evidence of damage and improper seating. Replace defective connector plugs and reset any that are dislodged.

2. Inspect the electrical wiring for signs of discoloured, broken or poor insulation. Repair or replace if necessary.

3. Inspect all waveguides for discoloration, cracks, loose connectors and improper sealing. Tighten or replace waveguides as required.

4. Check for other defects such as, wear, breakage, deterioration, fungus, excess moisture and mounting integrity.

9.3 COOLING FAN CHECK

The AWMT is forced-air cooled, using a single fan. The cooling fan is located at the bottom shroud. Verify that the fan is operating smoothly. Any suspect noise may indicate a worn fan that must be replaced. Check for debris or dust in the fan intake and in all openings on the unit. This may reduce the efficiency of the cooling system. The fan should be replaced every two years, in order to ensure the proper cooling of the AWMT.

WARNING! Do not come in contact with any electrical assembly while power is applied.

AWMT

10. APPENDIX A: RS-485 SERIAL COMMUNICATION PROTOCOL

The protocol described in this Section is used for the interconnection between the AWMT and the user’s monitoring and control system. The protocol supports the 4-wire RS-485 interface using the communication set-up 9600.N.8.1.

10.1 FRAME STRUCTURE

Each frame starts from start byte – 0x55 After this start byte, each frame consists of 7 bytes described as follows:

• First byte master–slave – address of the correspondent unit (0x01 to 0x07, address 0x00 – will be used as broadcast address and must be used only for commands.

• First byte slave-master – address of the unit, shifted to the left by 4 (e.g. for a unit with address 0x05, the returned address is 0x50).

• Second byte master-slave – command or data request.

• Third, forth and fifth bytes master-slave – value of parameter or expansion of command:

third byte – MS byte, forth byte – LS byte, fifth byte – value after decimal point.

• From second to sixth bytes slave-master – data or status from slave.

• Seventh byte master-slave and slave-master - check sum, calculated as algebraic sum of bytes

1-6.

NOTE: Format for gain, level, current consumption and temperature is a 2-byte

hexadecimal value in 0.1 dB, 0.1 dBm, 0.1 A or 0.1 degree (signed integer).

Format for the LNX current is a 2-byte hexadecimal value in 1 mA steps

(unsigned integer).

Format for frequency is a 2-byte hexadecimal value in 1 MHz steps (unsigned

integer). All unused bytes are always - 0xAA.

10.2 COMMANDS

TABLE 11 at page 43 lists all of the commands that go in the master-slave direction. NOTE: If slave does not recognise the command from the master, the response of the

slave is given in TABLE 12 at page 44.

AWMT

TABLE 11: COMMAND TO TRANSCEIVER

No Description

1. Request condition status

2. Mute/Unmute command 0x02

3. Read RF frequency set 0x0F

4. Set RF frequency 0x04

5. Read identification 0x07

6. Read serial number 0x08

7. Read gain set 0x0A

8. Set gain 0x05

2nd

byte

0x01

0x2A

3, 4, 5 & 6 bytes

0xAA, 0xAA, 0xAA,

0xAA

0x5A – mute Tx

0xA5 – unmute Tx

0x0F – mute Rx

0xF0 – unmute Rx

0x5A for Tx 0xA5 for Rx

0x5A XX XX XX for Tx 0xA5 XX XX XX for Rx

0xAA, 0xAA, 0xAA,

0xAA

0xAA, 0xAA, 0xAA,

0xAA

0x5A for Tx 0xA5 for Rx

0x5A XX XX XX for Tx 0xA5 XX XX XX for Rx

Response: 2, 3, 4, 5 & 6

bytes

TABLE 12

See

No answer

See TABLE 14

No Response

See TABLE 13

5 ASCII characters

2 &3 &4 bytes – real gain

No Response

9. Read temperature 0x12

10. LNX current 0x13

11.

12.

13.

Read unit and switch

position and status

Switch WG switches

(redundant system only)

Read forward and reflected

power levels

0x23

0x24

0x25

0xAA, 0xAA, 0xAA,

0xAA

0xAA, 0xAA, 0xAA,

0xAA

0xAA, 0xAA, 0xAA,

0xAA

0x5A – Tx 0xA5 - Rx

2, 3 bytes -temperature

2,3 bytes –LNX current

See TABLE 15

No Response

2-3 bytes: FWD

5-6 bytes: REV

AWMT

10.3 RESPONSE TO COMMANDS FROM SLAVE TO MASTER

For command 1 (request condition status) the response is given in the following table.

TABLE 12: CONDITION STATUS RESPONSE

Bit No

4-th byte – Internal Communication Status is:

2nd byte 3rd byte 4th byte 5th byte 6th byte

0 Tx status 1-on, 0-off Rx status 1-on, 0-off 1 1- Tx PLL Alarm 1-Rx PLL Alarm

2 3 1-Alarm

4 N/A 5 N/A 6 N/A

Output

level

MS byte

1 – for no communication, 0 – for communication O/K.

Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0

N/A N/A

Output

level

LS byte

Module

Internal

Communication

Status

L-IF

RF-L

Module

1- Check sum error

in command

Power Class for

P1dB

(power in dBW)

5 bits

From 30dBm – step

1dB 0 dBW = 30 dBm 1 dBW = 31 dBm

…

20 dBW = 50 dBm

Module

IF-L

Module

1- Unknown

command

N/A

L-RF

Module

AWMT

TABLE 13: READ IDENTIFICATION RESPONSE

Bit

0 1 – Up

1 1 – Down 2 1 – PA 0

3 0 0 4 0 0 5 0 0 6 0 0 7 0 0

2nd byte 3rd byte 4th byte 5th byte 6th byte

1- Rx spectrum inv

0- not Rx spectrum inv

1 – ALC On 0 – ALC Off

TABLE 14: READ FREQUENCY SET RESPONSE

Bit No

0 1 2 3 4 5 6 7

2nd byte 3rd byte 4th byte 5th byte 6th byte

MS byte

Frequency

LS byte

Frequency

0x00 – N/A 0x01 – 70 to L 0x02 – 70 to C

0x03 – 70 to Ku 0x04 – 140 to L 0x05 – 140 to C

0x06 – 140 to Ku

0x07 – L to C

0x08 – L to Ku

0x5A for Tx 0xA5 for Rx

Value after

decimal point

0xAA

Software

version

number

0xXX

0xAA

AWMT

TABLE 15: UNIT STATUS AND SWITCH POSITION RESPONSE

Bit

0 1–B; 0-A

6 7 0 0 0 0 0

2nd byte 3rd byte 4th byte 5th byte 6th byte

Tx 1-unmute;

0-mute

Rx 1-unmute;

0-mute

Tx 1- on line

0 – S/B

Rx 1- on line

0 - S/B

1 – Standalone

0 - Redundant

1 – Unit

position error

1- Tx alarm;

0-Tx O/K

1-IF-L alarm 1-L-IF alarm

1-L-RF alarm 1-RF–L alarm 0

1-PA temper

alarm

1-PA devices

alarm

0 0 0 0

1- Rx alarm;

0-Rx O/K

1- LNX

current alarm

0 0 0

1- Consumption

current alarm

1- Reflected

power alarm

1-Tx W/G

switch alarm

1-Rx W/G

switch alarm

1 – Tx W/G

switch not connected

1 – Rx W/G

switch not connected

AWMT

11. APPENDIX B: SAFETY AND EMC COMPLIANCE

ADVANTECH AMT™ products are compliant with following standards:

SAFETY: IEC 60950-1 second edition 2005

EMC: EN301489-1 2004 (EMC for radio equipment and services, common technical

requirements):

EN 55022: 1998 / A1: 2000 - Class A EN61000-4-4 Transient/burst 0.5kV Signal Lines, 1 kV Power Lines EN61000-4-2 Electrostatic discharge 4kV CD, 8 kV AD EN61000-4-5 Surge 1kV, 0.5 kV EN61000-4-11 AC port dips 70%, 40%, 0% EN 61000-4-3 Radiated Immunity 80-1000 MHz @ 3 V/m

SUPPLEMENTARY INFORMATION:

The products herewith comply with the requirements of the Low Voltage Directive 73/23/EEC and of the EMC Directive 89/336/EEC and may carry the CE-marking accordingly.

AWMT

12. ANNEX C: SPECIFICATIONS FOR 250 W C-BAND TRANSCEIVERS MODEL AWMT -C250-DRE (P/N 1T0-11G1 10-6B0)

The Transceivers specified herein are capable of meeting or exceeding the performance specifications listed in the following table over frequency range, operating temperature and line voltage variation, unless otherwise specified. The units will meet all RF performance specifications within thirty minutes of application of prime power.

Transmitter

TABLE 16: TRANSMITTER SPECIFICATIONS

Specification Conditions Value/Limits

Tx Output Frequency Range Tx Frequency Step Adjustment

Tuning Range 5.850 to 6.425 GHz

By software 1 MHz

Tx Signal Bandwidth ±18 MHz Tx Output Power P1dB 53 dBm (250 W saturated power) Tx Gain Linear mode 74 dB, typ at maximum set gain Tx Gain Adjustment By software 20 dB, (between 54 and 74 dB, typical) TX Gain Adjustment Step 1 dB Tx Third Order

Intermodulation Tx Output VSWR CPR-137 G 1.22:1 max (-20 dB, max Return Loss) Tx Gain Flatness Over any 36 MHz 3.0 dB p-p, max

Tx Gain Variation with temperature

Tx Input Frequency 70 MHz ± 18 MHz

Tx Input Power

two equal tones, 5 MHz apart

Linear mode

- 25 dBc, max @ 3 dB back-off total power

3 dB from –30 °C to +55 °C ±1 dB for ±10 °C

–20 dBm, for reaching P1dB @ maximum gain set

Tx Input VSWR 70 MHz 1.29:1 max

Tx Input Impedance

N-type connector 50 Ω 50 Ω

AWMT Receiver

TABLE 17: RECEIVER SPECIFICATIONS

Specification Conditions Value/Limits

Rx Input Frequency Range 3.400 to 4.200 GHz Rx Input Noise Temperature Rx Frequency Adjustment Step 1 MHz Rx Signal Range ±18 MHz Rx Gain Linear mode 80 dB, typ at maximum set gain Rx Gain Adjustment By software 20 dB Rx Gain Adjustment Step 1 dB

Rx input VSWR Rx output frequency 70 ±18 MHz

Rx output VSWR 1.25:1 Rx output level P1dB Rx Output Impedance

With TRF & Isolator (provided by customer)

70 MHz ± 18 MHz N-type connector 50 Ω 50 Ω

35 °K typical

1.25:1

0 dBm, typ

AWMT

TABLE 18: MECHANICAL SPECIFICATIONS

Physical Dimensions See Figure 8: Product Outline (C-Band 250W) at page 51

and Figure 9: Connector Layout (C-Band 250W) at page 52

Approximate Weight 62 lbs (28 kg)

Mounting Requirements See Figure 8: Product Outline (C-Band 250W) at page 51

Figure 9: Connector Layout (C-Band 250W) at page 52

and

TABLE 19: POWER REQUIREMENTS

Power Requirements 48 V DC

Power Consumption 26 A typical @ 48 V DC, 1250W (each unit)

AWMT

Figure 8: Product Outline (C-Band 250W) – DC Line (48 V) Unit

AWMT

Figure 9: Connector Layout (C-Band 250W) – DC Line (48 V) Unit

AWMT

Figure 10: Product Outline (Ku-Band Low Power)

AWMT

Figure 11: Typical Connector Layout (Ku-Band Low Power)

AWMT

Figure 12: Product Outline (Redundant System, Ku-Band Low Power)

AWMT

Figure 13: Product Outline Side View (Redundant System, Ku-Band Low Power)

AWMT

Figure 14: Mounting of a Low Power Transceiver on Feed Support

AWMT

Figure 15: Outline Drawing of C-Band Light Weight 60W C-Band Transceiver

AWMT

Figure 16: Connectors of Light Weight 60W C-Band Transceiver

AWMT

Figure 17: Outline Drawing of C-Band 10W C-Band Transceiver

AWMT

Figure 18: Connectors of 10W C-Band Transceiver

AWMT

Figure 19: Proposed GUI for RS-485 Communication (transceiver single unit)

AWMT

Figure 20: RS-232 Terminal Mode Display for Redundant System

AWMT

Figure 21: Proposed GUI for RS-485 Communication (transceiver redundant system)

Advantech AWMT Installation And Operation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

1. SAFETY

2. PACKING LIST

2.1 SINGLE UNIT PACKING LIST

3. GENERAL INFORMATION

4. MAJOR SUBSYSTEMS AND THEIR FUNCTIONS

4.1 INTRODUCTION

4.2 DESCRIPTION

4.3 UNIT MAJOR COMPONENTS

4.3.1 IF TO L-BAND UP-CONVERTER MODULE

4.3.2 L-BAND TO RF UP-CONVERTER MODULE

4.3.3 L-BAND TO IF DOWN-CONVERTER MODULE

4.3.4 POWER AMPLIFIER MODULE

The Waveguide Assembly contains a forward and reflected power detector, an RF output circulator and the harmonic filters.

4.3.8 MAIN CONTROLLER BOARD

4.3.8.1 FAULT Detection and Indication

4.3.8.2 Tx MUTE Control

4.3.8.3 Rx MUTE Control

5. INTERFACES

5.1 RELAY INTERFACE

5.2 RS-232 INTERFACE

5.3 RS-485 INTERFACE

5.4 REDUNDANT INTERFACE

5.5 RF OUTPUT MONITOR INTERFACE

6. UNPACKING AND INSTALLATION

6.1 INITIAL INSPECTION

6.2 UNPACKING

6.3 INSTALLATION

6.3.1 RELAY, SERIAL INTERFACES AND AC (OR DC) POWER CABLES CONSTRUCTION

6.3.2 ENVIRONMENTAL AND ADEQUATE VENTILATION CONSIDERATIONS

6.3.3 MECHANICAL, RF AND ELECTRICAL INSTALLATION

7. PRE-POWER AND SYSTEM CHECKOUT

7.1 PRE-POWER PROCEDURES

7.2 OPERATIONAL SETTINGS VERIFICATION

8. OPERATION

8.1 INTRODUCTION

8.2 SAFETY CONSIDERATIONS

8.3 BASIC OPERATING PROCEDURE

8.4 AUTOMATIC LEVEL CONTROL (ALC)

8.5 USING THE AWMT SOFTWARE

8.5.1 USING THE RS-232 INTERFACE

8.5.1.1 Downloading the Customer Supplied Software

8.5.2 USING THE RS-485 INTERFACE

9. MAINTENANCE

9.1 PREVENTIVE MAINTENANCE

9.2 MECHANICAL PREVENTIVE MAINTENANCE

9.3 COOLING FAN CHECK

10. APPENDIX A: RS-485 SERIAL COMMUNICATION PROTOCOL

10.1 FRAME STRUCTURE

10.2 COMMANDS

10.3 RESPONSE TO COMMANDS FROM SLAVE TO MASTER

11. APPENDIX B: SAFETY AND EMC COMPLIANCE

12. ANNEX C: SPECIFICATIONS FOR 250 W C-BAND TRANSCEIVERS MODEL AWMT -C250-DRE (P/N 1T0-11G1 10-6B0)