Norsat ATOMSKA Series User manual

1
ATOM Ka 25/40W/50W BUC & SSPA
USER MANUAL
ATOM Ka 25/40W/50W BUC & SSPA

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2021-02-16 INS001201 Rev B 2
Operator’s Manual
The information in this document has been fully reviewed and is believed to be entirely reliable. However,
Norsat International Inc., hereinafter referred to as Norsat, reserves the right to modify any products to
improve reliability, function, or design. Norsat does not assume any liability arising out of the application or
use of any product or circuit described herein. Norsat does not convey any license under its patent rights
or the rights of others.
Technical Support
This manual provides engineers with information necessary to operate the applicable system. Technical
support is available from Norsat.
Norsat International Inc.
Attn: Technical Support
110 –4020 Viking Way
Richmond, BC
Main: 1 [phone]
Support: 1 800 644 4562
[email protected]om

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Table of Contents
1. Introduction ........................................................................................................................ 7
1.1 Overview ...................................................................................................................... 7
1.1.1 SSPA - Solid State Power Amplifier........................................................................ 7
1.1.2 BUC - Block Up Converter and Amplifier ................................................................ 7
1.2 Features....................................................................................................................... 7
1.2.1 Inputs and Outputs ................................................................................................. 7
1.2.2 Electrical Interface .................................................................................................. 8
1.3 Safety........................................................................................................................... 8
2. Interface Control................................................................................................................. 9
2.1 Introduction .................................................................................................................. 9
2.2 J1 & J6–Inputs and Grounding ...................................................................................12
2.2.1 J1 –IF/RF Input.....................................................................................................12
2.2.2 J6 –Ground Terminal ............................................................................................12
2.3 J3 –DC Power ............................................................................................................12
2.3.1 Connector Type.....................................................................................................12
2.3.2 DC Unit J3 Connector Pinouts ...............................................................................13
2.4 J2 –Monitor and Control Interface...............................................................................13
2.4.1 Monitor and Control Interface Pinout .....................................................................14
2.4.2 Ground Pin(s): Pin G .............................................................................................15
2.4.3 Mute Control: Pin D ...............................................................................................15
2.4.4 RS-485 Port: Pins A, B, C, J..................................................................................16
2.4.5 RS-232 Port: Pins E, F, & G ..................................................................................16
2.4.6 Ethernet Interface: Pins E, F, H, & K......................................................................16
2.5 Serial Port Software Interface......................................................................................17
2.5.1 Controller Responses ............................................................................................18
2.5.2 Message Definitions ..............................................................................................18
2.5.3 Command Response.............................................................................................20
2.5.4 Mute Logic.............................................................................................................21
2.6 Ethernet Interface (atomcontrol™ Web Interface)........................................................22
2.6.1 Default IP Address.................................................................................................22
2.6.2 Accessing atomcontrol™ Web Interface ................................................................22
2.6.3 Using atomcontrol™ Web Interface .......................................................................22

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2.6.4 Changing the ATOM’s IP Address .........................................................................22
2.6.5 Recovering the ATOM’s IP Address ......................................................................23
2.7 Ground Connection .....................................................................................................23
2.8 Ground Connection .....................................................................................................24
2.9 Fault Indicator / LED....................................................................................................24
2.9.1 Description of Operation ........................................................................................24
2.9.2 Modes of Operation ...............................................................................................24
2.9.3 Starting with No Faults Status................................................................................24
2.9.4 Fault and No Faults ...............................................................................................24
3. Misc. Info...........................................................................................................................24
3.1 ATOM Installation........................................................................................................24
3.1.1 Mounting................................................................................................................24
3.1.2 Outdoor Use ..........................................................................................................25
3.2 Fans & Baseplate Cooling ...........................................................................................25
3.3 Accessories.................................................................................................................25
3.4 General Specifications.................................................................................................25
3.5 Standard Warranty ......................................................................................................26
Appendix A Mechanical Drawings .........................................................................................27
Appendix B Acronyms and Abbreviations..............................................................................31

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List of Figures
Figure 2-1 Input Connections for ATOM Ka 25W/40W BUC Unit (N-Type Jack Shown)..... 9
Figure 2-2 Input Connections for ATOM Ka 25W/40W SSPA Unit...................................... 9
Figure 2-3 Input Connections for ATOM Ka 50W BUC Unit (N-Type Jack Shown) ............10
Figure 2-4 Input Connections for ATOM Ka 50W SSPA Unit.............................................10
Figure 2-5 Standard Waveguide Output for ATOM Ka 25W/40W units..............................11
Figure 2-6 Standard Waveguide Output for ATOM Ka 50W units ......................................11
Figure 2-7: DC Unit J3 Connector Pinout ..........................................................................13
Figure 2-8: J2 M&C Connector Pin Arrangement...............................................................14
Figure 2-9: RJ-45 Plug Pinout ...........................................................................................17
Figure 2-10: Setup Serial Port ...........................................................................................18
Figure 2-11: Command getident ........................................................................................18
Figure 2-12: Command getstatus ......................................................................................19
Figure 2-13: Command getfaults .......................................................................................19
Figure 2-14: Command resetfaults ....................................................................................20
Figure 2-15: Command setmute - mute unit ......................................................................20
Figure 2-16: Command setmute - unmute unit ..................................................................20
Figure A-3-1: 25W/40W Ka BUC/SSPA, Fan Cooled ........................................................27
Figure A-3-2: 25W/40W Ka BUC/SSPA, Baseplate Cooled...............................................28
Figure A-3-3: 50W Ka BUC/SSPA, Fan Cooled.................................................................29
Figure A-3-4: 50W Ka BUC/SSPA, Baseplate Cooled .......................................................30

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List of Tables
Table 1-1: Input and Outputs.............................................................................................. 7
Table 2-1: DC Unit J3 Connector Pinout............................................................................13
Table 2-2: M&C Interface Options .....................................................................................14
Table 2-3: J2 Pinouts for ATOM Configurations ................................................................14
Table 2-4: ATOM Mute Control Behavior...........................................................................15
Table 2-5: Ethernet Cable Pinout ......................................................................................16
Table 2-6: Fault Trip and Reset Points ..............................................................................19
Table 2-7: Commands Summary.......................................................................................21
Table 3-1: General 25-50W ATOM Specifications .............................................................25
Table B-3-1: Acronyms and Abbreviations…………...……………………………………...…31

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1. Introduction
1.1 OVERVIEW
This operator’s manual applies to all ATOM SSPAs and BUCs with the following marketing numbers:
ATOMSKAxxx (25-50W)
ATOMBKAxxx (25-50W)
ATOM-100060 (40W)
This includes any ATOM that uses the 25-50W (Psat) Ka Commercial Band (29.0-30.0 GHz), Military Band
(30.0-31.0 GHz), Dual Band (29.0-30.0 GHz / 30.0-31.0 GHz) or Specific Bands. This also includes the
ATOM-100060 (Ka 40W BUC) as specified.
1.1.1 SSPA - Solid State Power Amplifier
If this unit is a SSPA, the RF input signal is amplified to the specified power.
1.1.2 BUC - Block Up Converter and Amplifier
If this unit is a BUC, the IF input signal is upconverted to Ka-Band RF frequencies and then amplified to the
specified power.
1.2 FEATURES
1.2.1 Inputs and Outputs
Table 1-1: Input and Outputs
25-50W
Input Type
Female N-Type Connector (BUC)
Female K-Type Connector (SSPA)
Output Type
Waveguide WR28 (standard)

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1.2.2 Electrical Interface
M&C Connector –a ten-pin connector is used to interface with a host computer. See Section 2.4 J2 –
Monitor and Control Interface for detailed description of the pinouts.
Power Connector –DC Units use a four-pin connector to provide power to the ATOM. See Section 2.3 J3
–DC Power for detailed description of pinouts.
Ground Terminal –a #10-32 screw is used to ground the chassis during use.
1.3 SAFETY
W A R N I N G
Leakage Current
The ATOM may exhibit high leakage current during use. Ensure
that the ground terminal is grounded according to local
electrical codes prior to powering on the ATOM.
W A R N I N G
RF Radiation Hazard
The ATOM emits high power RF energy which is harmful to the
human body. Do not operate ATOM unless the RF output flange
is either terminated in an RF load (100W min) or connected to
the feed of a terminal.
Do not obstruct the RF output or feed output with any body part.
W A R N I N G
Do not allow equipment to be standing in water.
While the BUC/SSPA is designed to be used outdoors, the
equipment is not designed to operate in standing water. Failure
to follow this precaution could result in electric shock and injury
to persons.
C A U T I O N
Do not allow any items to fall into the unit from the waveguide
opening.
C A U T I O N
Apply voltage to the AC/DC input connector only as specified in
the original configuration of this unit. Application of a voltage
outside the specified range may cause the unit to become
damaged or non-functional.

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2. Interface Control
2.1 INTRODUCTION
The unit has three connectors on the input side of the housing and one waveguide port on the output side.
The interface for these connectors is detailed in this document.
On the input side, there are the following connectors:
•J1 –IF or RF Input; N-Type Jack for BUC; K-Type Jack for SSPA
•J2 –Ten-pin circular connector for M&C
•J3 –Four-pin circular DC power connector
•J6 –Ground terminal
Figure 2-1 Input Connections for ATOM Ka 25W/40W
BUC Unit (N-Type Jack Shown)
J3
Figure 2-2 Input Connections for ATOM Ka 25W/40W
SSPA Unit
J1
J2
J6
J6
J2
=
J3
J1

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Figure 2-3 Input Connections for ATOM Ka 50W BUC
Unit (N-Type Jack Shown)
J3
J1
J6
J2
Figure 2-4 Input Connections for ATOM Ka 50W SSPA
Unit
J2
J6
J3
J1

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On the output side, there is one connector:
•J4 –WR28 waveguide RF output
J4
Figure 2-6 Standard Waveguide Output for ATOM Ka 50W
units
J4
Figure 2-5 Standard Waveguide Output for
ATOM Ka 25W/40W units

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2.2 J1 & J6–Inputs and Grounding
2.2.1 J1 –IF/RF Input
BUC
The IF input connector is a 50 ohm coaxial connector (N or optional SMA Type). The external/internal
reference mode is auto-selected. If an external reference signal is applied, the BUC will switch to external
reference mode. In the absence of external reference signal, the BUC will switch to internal reference mode.
This connector is DC-blocked, and appears as a 50 ohm load at IF. Do not exceed ±50 VDC on this port.
SSPA
In the SSPA-only configuration, this is the RF input. It is a K-Type connector, with performance to 40 GHz.
No external reference is required for SSPA-only operation.
2.2.2 J6 –Ground Terminal
A #10–32 screw and lock washers are used to ground ATOM. Ensure the unit is grounded before powering
it on.
2.3 J3 –DC Power
The 25W, 40W & 50W ATOM Ka power input requires 18V to 56V DC power. Each ATOM is supplied with
a mating connector for the power interface.
Refer to specific configuration of the unit for the exact voltage range. Power is supplied through a four pin
type cylindrical connector. Two pins are used to deliver the positive connection and two pins are used for
the negative connection in order to reduce resistance. The negative connection is internally connected to
case ground. The negative power connection may alternatively be applied directly to the ground screw
terminal on the aluminum housing.
2.3.1 Connector Type
The J3 connector for the DC input is a four pin miniature circular connector. This connector is a MIL-C-
26482 Series 1 receptacle, shell size 12, 4 pin (Amphenol®71-533723-4P). The connector is a receptacle
with pins and requires the mating connector to be a plug with sockets (e.g Amphenol®PT06E-12-4S-SR).
A range of plug-compatible mating connectors may be used to add options to the plug such as right-angle,
stress relief clamp, metal color/finish, etc. Please contact the connector manufacturer for more information
and/or refer to the Amphenol®catalog 12-070. Ensure the supply cable is capable of supplying at least
300W of power (for 25W ATOM Ka) or 600W of power (for 50W ATOM Ka).

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2.3.2 DC Unit J3 Connector Pinouts
Figure 2-7: DC Unit J3 Connector Pinout
Table 2-1: DC Unit J3 Connector Pinout
Pin
Name
A
V-/Ground
B
V+
C
V+
D
V-/Ground
For the DC input, the positive terminals are pins B/C and the negative terminals are pins A/D. Pins A and
D are connected to case ground internally; pins B and C are connected together internally. It is
recommended to apply the supply voltage evenly to both pairs of pins to evenly share the current among
both sets of wires/pins.
The internal capacitance between the V+ and V- terminals is approximately 120 microfarads.
2.4 J2 –Monitor and Control Interface
The M&C interface is used to control the unit with a host computer. All on-board sensors are accessed
through this interface. Use of this connection is optional. Each ATOM is supplied with a mating connector
for the M&C interface.
The 25-50W ATOM can be ordered with standard or Ethernet web interface options. Table 2-2 summarizes
the M&C interface protocols available with each option.
A
B
D
C

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Table 2-2: M&C Interface Options
Orderable Option
Communication Interfaces
RS-485
RS-232
Web
Interface
Standard
X
X
Ethernet Option
X
X
2.4.1 Monitor and Control Interface Pinout
The M&C interface is a ten pin miniature circular connector. This connector is a MIL-C-26482 Series 1
receptacle, shell size 12, 10 pin (Amphenol® part number 71-533723-10P). A mating connector is
Amphenol® part number PT06E-12-10S-SR. A range of compatible part numbers for the mating connector
may be used to add options to the plug such as right-angle, stress relief clamp, metal color/finish, etc.
Please contact the connector manufacturer for more information and/or refer to Amphenol® catalog 12-
070.
Figure 2-8: J2 M&C Connector Pin Arrangement
Table 2-3 summarizes the various pinout options for the 25-50W ATOM Ka. Note that the pin function
varies according to the M&C interface option that the ATOM was ordered with. The M&C interface option
cannot be changed by the user.
Table 2-3: J2 Pinouts for ATOM Configurations
Connect
or Pin
Standard
Configur
ation
Ethernet
Configura
tion
Signal Description
A
RS-485
Tx-
RS-485
Tx-
Host computer Tx- signal (signal into unit)
B
RS-485
Tx+
RS-485
Tx+
Host computer Tx+ signal (signal into unit)
C
RS-485
Rx+
RS-485
Rx+
Host computer Rx+ signal (signal out of unit)

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D
Mute
Mute
Controls Muting of Amplifier
E
Eth Rx+
Ethernet host computer Rx+ signal (signal out of unit)
RS-232
Rx
RS-232 host computer Rx signal (signal out of unit)
F
Eth Tx+
Ethernet host computer Tx+ signal (signal into unit)
RS-232
Tx
RS-232 host computer Tx signal (signal into of unit)
G
GND
GND
Ground reference for Ethernet/RS-485/RS-232 signals. This is
internally connected to case ground.
H
Eth Rx-
Ethernet host computer Rx- signal (signal out of unit)
NC
NA
J
RS-485
Rx-
RS-485
Rx-
Host computer Rx- signal (signal out of unit)
K
Eth Tx-
Ethernet host computer Tx- signal (signal into unit)
NC
NA
2.4.2 Ground Pin(s): Pin G
Ground/shield for Ethernet, RS-485, RS-232 & Mute signals. This is internally connected to the case
ground. Do not exceed 100mA.
2.4.3 Mute Control: Pin D
This pin controls the hardware mute state of the ATOM. When muted, the power transistors are turned off,
reducing power consumption and providing an RF output noise close to the thermal noise floor.
The operation of this pin is fully configurable through the M&C Interface. Pin D can be biased with either
an internal Pull-Down (to 0V) or an internal Pull-Up (to 4V). Pin D is also configurable to be either active
high (3-5V on Pin D will mute the unit) or active low (0-0.8V on Pin D will mute the unit). All voltages are
relative to Pin G or the Case Ground.
Because of the configurable pull-down / pull-up resistor, the unit can be configured to be active (i.e. not
muted) when Pin D is left floating. Therefore, it is possible to operate the unit with no connection pin D.
The ATOM mute control behavior is shown below in Table 2-4. Note that the ATOM may be factory ordered
with alternate configurations so the Default configuration shown in the table is not reflective of all ATOM
units.
Table 2-4: ATOM Mute Control Behavior
Configuration
Mute Line
Polarity
Mute
Line
Bias
Sample
Input 1
Sample
Mute State
1
Sample
Input 2
Sample
Mute State
2
Sample
Input 3
Sample
Mute State
3
Default
0V =
Unmute
Pull-
Down
0V
Unmuted
5V
Muted
Floating
Unmuted

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Sample 1
0V =
Unmute
Pull-Up
0V
Unmuted
5V
Muted
Floating
Muted
Sample 2
5V =
Unmute
Pull-
Down
0V
Muted
5V
Unmuted
Floating
Muted
Sample 3
5V =
Unmute
Pull-Up
0V
Muted
5V
Unmuted
Floating
Unmuted
Note that the ATOM mute state can also be controlled through the M&C interface. The software
mute setting takes priority over the hardware pin. Refer to 2.5 for details.
2.4.4 RS-485 Port: Pins A, B, C, J
These four pins form a standard RS-485 port, with RX+, RX-, TX+, TX-. Use Pin G as the ground reference
for this port.
TX+ and TX- are the differential pair which carries a signal from the host computer to the unit. RX+ and RX-
are the differential pair which carries a signal from the unit to the host computer. Ensure these are
connected to the host computer RS-485 port accordingly.
•A
TX- (RS-485)
Host computer TX- signal (signal into unit)
•B
TX+ (RS-485)
Host computer TX+ signal (signal into unit)
•C
RX+ (RS-485)
Host computer RX+ signal (signal out of unit)
•J
RX- (RS-485)
Host computer RX- signal (signal out of unit)
2.4.5 RS-232 Port: Pins E, F, & G
These pins form a standard RS-232 serial port. Pin F carries a signal from the host computer to the unit
and Pin E carries a signal from the unit to the host computer. Pin G must be connected to the ground pin
on the host computer.
2.4.6 Ethernet Interface: Pins E, F, H, & K
These four pins form a standard 10/100Mbps Ethernet link. Table 2-5 and Figure 2-9 summarize how to
construct an Ethernet M&C cable to access the web interface.
Table 2-5: Ethernet Cable Pinout
ATOM
Connector
Twisted Pair
Cable
RJ-45
Connector
Description
F
Wht/Grn
1
Ethernet host computer Tx+ signal (signal into unit)

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K
Grn
2
Ethernet host computer Tx- signal (signal into unit)
E
Wht/Org
3
Ethernet host computer Rx+ signal (signal out of
unit)
-
Blu
4
-
-
Wht/Blu
5
-
H
Org
6
Ethernet host computer Rx- signal (signal out of
unit)
-
Wht/Brn
7
-
-
Brn
8
-
Figure 2-9: RJ-45 Plug Pinout
2.5 Serial Port Software Interface
Communications to and from the serial interface is character based. Use any standard “Terminal” program
with setup parameters as shown in Figure 2-10.

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Figure 2-10: Setup Serial Port
2.5.1 Controller Responses
The unit will only generate messages in response to a command. Each command received will result in a
single message reply, which may simply be an Acknowledge message.
In general, command responses are returned immediately, though the precise command-response delay
varies slightly based on the specific command.
2.5.2 Message Definitions
getident
This command returns the part number, software revision and serial number of the unit.
Figure 2-11: Command getident
getstatus
This command instructs the unit to respond with fault flag, forward power and temperature. Note: reverse
power, “revpwr”, in the response is a future enhancement and is not currently supported.
•A “0” after “fault” indicates no faults. A “1” indicates a fault. Use command “getfaults” to determine
what fault exists.

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•Power is in dBm.
•Temperature is in degrees C. The temperature scale is from –40 to 125 C, with approximately
+/- 2 degrees C accuracy.
Figure 2-12: Command getstatus
getfaults
This command gets the status of the mute, over temperature and pll loss of lock.
For mute, “0” indicates the unit is in an unmuted state. A “1” indicates a muted state. Note that a “1” does
not necessarily indicate an error as the unit could have been commanded into a mute state (see “setmute”
command).
For over temp and pll, a value of “0” means no error and a value of “1” indicates an error.
Figure 2-13: Command getfaults
resetfaults
This command clears faults under certain conditions. Note that the “mute” fault code indicates muted state,
not necessarily an error. Since the unit can be commanded into mute state, without a fault, the “resetfaults”
command will not clear a mute fault in this situation.
The temperature sensor has a trip point (above which a fault is triggered) and a reset point (below which a
fault is automatically cleared.) The reset point is set below the trip point to provide hysteresis. See Table
2-6 for Trip and Reset Points.
The resetfaults command will clear an overtemp fault which has been tripped if the unit is currently below
the trip point. If the fault mode sensor value is above the trip point, the fault cannot be cleared. Some faults
may not have a reset point, and must be reset through the “resetfaults” command.
Table 2-6: Fault Trip and Reset Points
Fault Condition
Trip Point
Reset Point
Mute
N/A
N/A
Over Temperature
85C
75C
PLL Loss of Lock
N/A
N/A

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Figure 2-14: Command resetfaults
setmute
This command sets the software mute state of the unit. If the command code is 1, the amplifier will be
muted. If the command code is 0, the amplifier mute will be controlled as shown in Section Mute Logic.
The mute state can be monitored by examining the MUTE code in the “getfaults” message.
Figure 2-15: Command setmute - mute unit
Figure 2-16: Command setmute - unmute unit
2.5.3 Command Response
The CLI operates on a command response format. Each time a command is entered, a response will be
displayed. If a command executed correctly, an “ok” along with potential parameters and values will be
displayed. Otherwise, “err” will be displayed along with a description of the error.
The potential errors that may be displayed are:
•Invalid Command –The command was not recognized
•Invalid Parameter –The parameter was not recognized
•Invalid Value –The value was invalid for the command/parameter
•Missing Parameter –A required parameter was not provided
Each command response will have the following format:
<CR><LF><msg><CR><LF>
where msg is as described above and in the commands summary and example tables below. Note that a
response is enveloped by leading and trailing <CR><LF> characters.