KWS AMA310/UMS User manual

AMA310/UMS
Head end unit for return channel monitoring
Manual

Table of Contents 1
AMA 310/UMS V21.0
Table of Contents
Chapter 1 Notes on Safety, Usage, Maintenance and Service.......................................................4
1.1 Safety Instructions................................................................................................................................ 4
1.2 Usage Notes......................................................................................................................................... 4
1.3 Maintenance of the Instrument............................................................................................................. 4
1.4 Cleaning of the Instrument ................................................................................................................... 5
1.5 Calibration ............................................................................................................................................ 5
1.6 Service ................................................................................................................................................. 5
Chapter 2 Technical Data ...............................................................................................................6
Chapter 3 Operating and Connection Elements, Connection Assignments..................................10
3.1 Front Panel......................................................................................................................................... 10
3.2 Right Side of the Instrument............................................................................................................... 10
3.3 Back Panel ......................................................................................................................................... 11
3.4 USB-A-Interface ................................................................................................................................. 11
3.5 Ethernet (Management- and Streaming-Interface) ............................................................................ 12
3.5.1 Management Interface ....................................................................................................................... 12
3.5.2 Streaming Interface ............................................................................................................................ 12
3.6 ASI-IN / -OUT ..................................................................................................................................... 13
3.7 Control Output to optional Cluster-Switch SW 024 ............................................................................ 13
Chapter 4 Initial Operation ............................................................................................................14
4.1 Mains Operation ................................................................................................................................. 14
4.2 Mounting of the 19'' Clamping Angles ................................................................................................ 14
4.2.1 Assembly with Half a 19" Rack Unit on the Top................................................................................. 15
4.2.2 Assembly with Half 19" Rack Unit at the Bottom................................................................................ 16
4.3 Fan Control......................................................................................................................................... 16
4.4 Connection of the Instrument ............................................................................................................. 17
4.5 Connection with the optional Cluster-Switch SW 024 ........................................................................ 17
4.6 Switch-On........................................................................................................................................... 17
Chapter 5 Menu Structure.............................................................................................................18
5.1 Navigation in the Menus and Editing of Parameters .......................................................................... 19
5.1.1 Navigation with Arrow Keys................................................................................................................ 19
5.1.2 Editing of Parameters via the Numeric Keyboard .............................................................................. 20
5.1.2.1 Numeric Parameters .......................................................................................................................... 20
5.1.2.2 Alphanumeric Parameters.................................................................................................................. 20
5.1.3 Save Settings ..................................................................................................................................... 21
Chapter 6 Measuring Mode UMS (Upstream-Monitoring-System)................................................22
6.1 Introduction......................................................................................................................................... 22
6.2 Starting the System ............................................................................................................................ 22
6.3 Power Save Mode .............................................................................................................................. 24
6.4 Autostart ............................................................................................................................................. 24
6.5 Keyboard Lock ................................................................................................................................... 25
6.6 Displays for Measurements in Connection with the Field Device VAROS 107.................................. 25
6.6.1 Spectrum Display, Waterfall Diagram Display and TS Information on Field Instrument .................... 25
6.6.2 Ranging and Commands via Telemetry Carriers from Field Instruments .......................................... 25
6.6.3 MAX-HOLD-Function in the Spectrum ............................................................................................... 26
6.6.4 Frequency Sweep by a Field Instrument............................................................................................ 26
6.6.5 MER/BER Measurement and Quickcheck ......................................................................................... 27
6.6.6 Line-up Assistance and TILT Measurement....................................................................................... 27
6.6.7 Report Generation by a Field Instrument ........................................................................................... 28
6.7 Timeout .............................................................................................................................................. 28
6.8 Operation with optional Cluster-Switch SW 024 ................................................................................ 29
6.8.1 Summary and Selective Path ............................................................................................................. 29
6.8.2 Displays in the Summary Mode.......................................................................................................... 30

2 Table of Contents
AMA 310/UMS V21.0
6.8.3 Displays in the Selective Mode .......................................................................................................... 30
6.8.4 Final Remarks .................................................................................................................................... 31
Chapter 7 Analyzer Mode .............................................................................................................32
7.1 Call-Up and Abort of the Analyzer...................................................................................................... 33
7.2 Cursor................................................................................................................................................. 33
7.3 Level Display ...................................................................................................................................... 33
7.4 Freezing of the Spectrum ................................................................................................................... 34
7.5 MAX-HOLD Function.......................................................................................................................... 34
7.6 Reference Line ................................................................................................................................... 35
7.7 Input Attenuation ................................................................................................................................ 35
7.8 Operation with optional Cluster-Switch SW 024 ................................................................................ 38
Chapter 8 UMS Configuration.......................................................................................................41
8.1 Settings Headend Device................................................................................................................... 41
8.1.1 Configuration ...................................................................................................................................... 41
8.1.1.1 Auto-Start ........................................................................................................................................... 41
8.1.1.2 Keyboard Lock ................................................................................................................................... 41
8.1.1.3 Power Save Mode .............................................................................................................................. 41
8.1.1.4 TS Output ........................................................................................................................................... 41
8.1.2 Transport Stream Settings ................................................................................................................. 42
8.1.3 Network Settings ................................................................................................................................ 43
8.1.4 Handhelds .......................................................................................................................................... 43
8.1.5 Profiles ............................................................................................................................................... 43
8.1.5.1 Modem Upstreams ............................................................................................................................. 44
8.1.5.2 Bit Error Rate Measurement (BER).................................................................................................... 44
8.1.5.3 TILT Measurement ............................................................................................................................. 44
8.1.6 Forward Path Measurement............................................................................................................... 44
8.1.7 Cluster Differentiation when using the RF Switch SW 024 ................................................................ 45
8.1.8 Export/Import of the UMS Settings..................................................................................................... 45
8.1.9 Report / Protocol ................................................................................................................................ 45
8.2 System Plan ....................................................................................................................................... 49
Chapter 9 Instrument Management ..............................................................................................51
9.1 Language for Operator Guidance....................................................................................................... 51
9.2 Query of Software Status and Hardware Configuration ..................................................................... 51
9.3 Software Update Device Firmware..................................................................................................... 52
9.4 Update of Hardware Modules............................................................................................................. 52
9.5 Serial Number .................................................................................................................................... 53
9.6 MAC Address ..................................................................................................................................... 53
9.7 Readout of the Hardware Configuration............................................................................................. 53
9.8 Factory Setting ................................................................................................................................... 54
9.9 Setting of Date and Time.................................................................................................................... 54
9.10 Keyboard Settings .............................................................................................................................. 54
9.11 Formatting the Internal Flash Disk ..................................................................................................... 55
9.12 Export of the Internal Flash Disk ........................................................................................................ 55
Chapter 10 Output on File...............................................................................................................56
10.1 Hardcopy from the LC Display ........................................................................................................... 56
10.2 Hardcopy from the Graphics .............................................................................................................. 56
10.3 Setting the Standard Drive ................................................................................................................. 57
10.4 Calling-Up the Directory of the BMP Files.......................................................................................... 57
10.4.1 Remove BMP Files............................................................................................................................. 58
10.4.2 Copy BMP Files.................................................................................................................................. 58
Chapter 11 List of Figures...............................................................................................................59

3
AMA 310/UMS V21.0
Revisions
Version
Reason
Chapter
V18.0
First Publication
all
V19.0
No changes for derivate AMA 310/UMS
no
V20.0
No changes for derivate AMA 310/UMS
no
V21.0
No changes for derivate AMA 310/UMS
no
Reference Documents
This operating instruction refers to the following other documents:
•SW 024 Operating Instruction
•Application Note 006 - Upstream-Monitoring-System UMS

4 Chapter 1 - Notes on Safety, Usage, Maintenance and Service
AMA 310/UMS V21.0
Chapter 1 Notes on Safety, Usage, Maintenance and Service
1.1 Safety Instructions
This instrument has been built and tested in accordance with EN 61010-1, protective measures for
electronic measuring equipment. The instrument has been supplied ex works in a perfectly safe
condition. To maintain this condition and to ensure a safe operation, the user has to observe the
instructions and warnings included in these operations instructions.
The instrument corresponds to protection class II (protective insulation).
The instrument corresponds to protection class IP20 according to EN 60529.
The instrument must only be operated with supply voltages between 100-240 V with 50-60 Hz.
Discharges through a plug and socket connection may damage the instrument. During handling
and operation, the instrument has to be protected against electrostatic discharge.
No external voltages higher than 70 Veff must be applied to the RF input of the measuring receiver,
as otherwise the input circuits may be destroyed.
The ventilation slots of the instrument must not be covered. If covered, this may result in a reduced
air circulation in the instrument, leading to a heat accumulation and thus to an overheating and
damaging of the electronic components.
1.2 Usage Notes
The warranty for a new instrument ends 24 months after leaving the factory.
If the instrument is opened, the warranty claim becomes void!
Pointed tools (e.g. screwdrivers) may damage the plastic pane of the TFT display and thus result in
a destruction of the TFT.
If the ambient temperature falls below 5 °C, the contrast of the TFT display is impaired.
After a cold start of the instrument, the TFT display reaches its maximum brightness only after
some seconds.
The instrument reaches the full measuring accuracy only after an operating time of about 5
minutes.
Cordless DECT telephones as well as GSM or LTE mobile phones may lead to functional disorders
and faulty measurements when operated in the immediate vicinity of the measuring receiver.
1.3 Maintenance of the Instrument
The instrument is maintenance-free.

Chapter 1 - Notes on Safety, Usage, Maintenance and Service 5
AMA 310/UMS V21.0
1.4 Cleaning of the Instrument
The casing and the TFT display should be cleaned with a soft, lint-free cloth. Never use solvents
such as cellulose thinners, acetone and the like, as otherwise the front foil coating may be
damaged.
The ventilation slots should be cleaned from dust at regular intervals, such that the air circulation
through the instrument by the built-in ventilators will not be impaired.
1.5 Calibration
The measuring instrument should be calibrated at least every two years. During servicing the
instrument will be automatically calibrated in the factory.
1.6 Service
The service address is given on the back cover of this instruction manual.

6 Chapter 2 - Technical Data
AMA 310/UMS V21.0
Chapter 2 Technical Data
FREQUENCY RANGES
RC (Return Channel)
4.32 –65.76 MHz
Resolution (RBW)
10 kHz
Display Resolution
120 kHz
OPERATION
Input
Illuminated silicone keypad (numeric keypad)
Monitor
5.5" TFT, VGA Resolution 640*480)
Display
Separate LCD for measured values (320*64)
User Prompting
German and English
RF INPUT
F Socket / 75 Ohm (IEC 60169-24)
Return Loss
> 14 dB
RF Sum Power
< 500 mW
External Voltage
< 70 Veff (DC –50 Hz)
INPUT ATTENUATOR
0 –60 dB in 2 dB increments
LEVEL RANGE
Measuring Range
20 –120 dBµV
Resolution
0.1 dB
Measuring Accuracy
± 1.0 dB (at 20 °C) warm up time > 5 min.
± 2.0 dB (0°C - 40°C) warm up time > 5 min.
Measuring Bandwidth
1 MHz, 200 kHz or 90 kHz
(RBW(-3dB))
depending on bandwidth / symbol rate
setting

Chapter 2 - Technical Data 7
AMA 310/UMS V21.0
REALTIME ANALYZER
Measuring Bandwidth
0 –120 dBµV
Resolution
0.1 dB
Measuring Accuracy
± 1.0 dB (at 20°C) warm up time > 5 min.
± 2.0 dB (0°C - 40°C) warm up time > 5 min.
Measuring Dynamics
70 dB
Measuring Bandwidth (RBW(-3 dB))
10 kHz
Span (Frequency Segment)
Total range
Real-time MAX Hold Function
PRBS
QAM Demodulator
Data
PRBS23
Symbol Rates
0.3 –7.2 MSym/s
Modulation Schemes
QPSK, 16, 64 and 256 QAM
Measuring Parameters
(per ETR 290)
BER
1.00•10-6 / 1.00•10-7 /1.00•10-8
depending on bandwidth / symbol rate
setting
MER
up to 40 dB
Resolution
0.1 dB
Measuring Accuracy
± 1.5 dB
ASI
Output
Output level
typ. 800 mVpp
Connection
BNC Socket
Output Impedance
75 Ohm
USB
Management
USB-A
V1.1 (Full Speed)
Switch Control
USB-A
KWS proprietary protocol and assignment;
Control output to optional cluster switch
SW 024
ETHERNET
Management (front panel)
RJ-45
10Base-T (10 MBit/s)
Streaming (rear panel)
RJ-45
10/100Base-T (100 MBit/s)
Protocol
UDP / RTP

8 Chapter 2 - Technical Data
AMA 310/UMS V21.0
UPSTREAM MONITORING SYSTEM (UMS)
Return channel measurement system (together with appropriate handheld devices VAROS 107)
Measurements during active DOCSIS modem service
Up to 10 handheld devices connectable
Net data rate of DVB transport stream for data transmission between headend device and field devices:
< 800 kbit/s
ASI/IP TS Output
ASK modulation for signaling of the handheld device to the head end device
Sweep (wobbling) function
TILT function
CPU
32 bit RISC architecture
RTOS (Real Time Operating System)
FAT32 file system
64 MByte flash disk
Software update
Via USB stick
POWER SUPPLY
Mains
Built-In primary Power Supply Unit
Mains voltage
100-120 VAC, 200-240 VAC; 50 –60 Hz
Power consumption
45 W max.
ENVIRONMENTAL CONDITIONS
Operating Temperature
0 °C - +45 °C
Storage Temperature
-10 °C - +55 °C
ELECTROMAGNETIC COMPATIBILITY
per EN 61326-1
PROTECTION
per EN 61010-1
DIMENSIONS
W: 440 mm, H: 155.5 mm, D: 275 mm
(19‘‘ / 3.5 RU / without clamping angle)
W: 483 mm, H: 155.5 mm, D: 275 mm
(19‘‘ / 3.5 RU / with clamping angle)
WEIGHT
approx. 7.9 kg

Chapter 2 - Technical Data 9
AMA 310/UMS V21.0
QUANTITY OF DELIVERY
Included in the delivery
User Manual
USB stick
Power Cable
2 pieces clamping angle for 19‘‘ rack
mounting
8 pieces M4 x 8 mm crosshead screws

10 Chapter 3 - Operating and Connection Elements, Connection Assignments
AMA 310/UMS V21.0
Chapter 3 Operating and Connection Elements, Connection Assignments
3.1 Front Panel
Figure 3-1 Front panel
3.2 Right Side of the Instrument
The ventilation slots are on the right side of the instrument. They are positioned in such a way that
they will not be covered if the instrument is mounted in a 19" rack by means of the clamping
angles. Please make sure that the ventilation slots are not covered and sufficient ventilation is
guaranteed in case it is mounted in the rack in order to avoid overheating.

Chapter 3 - Operating and Connection Elements, Connection Assignments 11
AMA 310/UMS V21.0
3.3 Back Panel
Figure 3-2 Back panel
3.4 USB-A-Interface
Pin 1 = Vcc (+5 V)
Pin 2 = Data D -
Pin 3 = Data D +
Pin 4 = GND
Figure 3-3 USB-A-interface
According to the specification 1.1 the interface works in full speed with a maximum of 12 MBit/s.
The measuring instrument serves as a master here, i.e. it takes over the full control of the interface.
Before an application can communicate with a USB unit, the host has to know the type of the
device and load an appropriate driver. This happens after a device has been connected to the USB
interface. This process is called enumeration. The standard defines several USB device classes.
However, the measuring instrument only supports the class MASS STORAGE DEVICE (USB
stick).
Via the integrated FAT32 file system the software of the measuring receiver can write files on the
USB stick and read them.
The USB driver has been optimized for the stick provided. This means that this stick should be
used.
If the software tries to access the USB interface without a stick being connected, the LC display
shows the error message "ERROR USB-MassStorage Aborting!"

12 Chapter 3 - Operating and Connection Elements, Connection Assignments
AMA 310/UMS V21.0
3.5 Ethernet (Management- and Streaming-Interface)
Pin 1 = TXD +
Pin 2 = TXD -
Pin 3 = RXD +
Pin 4 = n. c.
Pin 5 = n. c.
Pin 6 = RXD -
Pin 7 = n. c.
Pin 8 = n. c.
Figure 3-4 Ethernet (management- and streaming-interface)
3.5.1 Management Interface
For management purposes the measuring instrument is equipped with an Ethernet interface in
standard 10Base-T with a maximum data rate of 10 MBit/s.
The RJ-45 socket used is situated on the front panel.
In the current version of the instrument this interface has no function.
3.5.2 Streaming Interface
The measuring instrument is equipped with an Ethernet interface in standard 10/100Base-T with a
maximum signaling rate of 100 MBit/s.
The RJ-45 socket used is situated on the back panel.
This interface is used to stream an MPEG transport stream to the headend equipment, this can
either be done via the ASI interface (see chapter 3.6 - ASI-IN / -OUT) or via Ethernet. A signal is
applied at the streaming interface as soon as the UMS mode is activated and the IP output has
been set as transport stream interface in the UMS settings, this will be described in subsequent
chapters of this manual.
The protocol versions UDP and RTP/UDP are supported.

Chapter 3 - Operating and Connection Elements, Connection Assignments 13
AMA 310/UMS V21.0
3.6 ASI-IN / -OUT
Figure 3-5 ASI input and output
The measuring instrument has a serial transport stream interface ASI (Asynchronous Serial
Interface) as standard equipment. The instrument has one input and one output as separate BNC
socket on the back panel. In the current version of the instrument, the ASI input has no function. At
the ASI output, a signal is applied as soon as the UMS mode is activated and the ASI interface has
been set as transport stream interface in the UMS settings, this will be described in subsequent
chapters of this manual.
3.7 Control Output to optional Cluster-Switch SW 024
The control output to the optionally available return channel switch SW 024 is designed as USB
socket. However, the pin assignment and the protocol used are KWS proprietary.

14 Chapter 4 - Initial Operation
AMA 310/UMS V21.0
Chapter 4 Initial Operation
4.1 Mains Operation
The mains connection is located on the back panel of the instrument. The measuring receiver is
operated by the two-pole mains cable supplied. The instrument has protection class II (protective
insulation).
Caution! During assembly (e.g. when mounting the instrument in a 19‘‘ rack) the
instrument has always to be separated from the supply voltage.
4.2 Mounting of the 19'' Clamping Angles
If the receiver AMA 310/UMS is to be mounted in a 19‘‘ rack, the angles supplied first have to be
mounted on both sides of the instrument.
Figure 4-1 Assembly of 19'' installation angle
The assembly is made by the M4 crosshead screws included in delivery. Each angle is to be fixed
with four screws on the housing, as shown above. The screws should be tightened firmly.
The height of the AMA 310/UMS corresponds to 3.5 19-inch rack units (1 RU = 44.45 mm). In order
to permit flexibility when installing it in the 19 inch rack, it is possible to mount the instrument half a
rack unit higher or lower in the rack by means of the clamping angle.

Chapter 4 - Initial Operation 15
AMA 310/UMS V21.0
4.2.1 Assembly with Half a 19" Rack Unit on the Top
If the clamping angles are mounted as labelled with "right" and "left" when delivered, the half height
unit is on the top.
Figure 4-2 Clamping angle assembly with half 19" rack unit on the top

16 Chapter 4 - Initial Operation
AMA 310/UMS V21.0
4.2.2 Assembly with Half 19" Rack Unit at the Bottom
If the clamping angles are interchanged and assembled, the half rack unit is at the bottom, as
shown in the graphic below.
Figure 4-3 Clamping angle assembly with half 19" rack unit at the bottom
4.3 Fan Control
Two integrated fans supply sufficient ventilation for the electronic components. These are
controlled by a microprocessor by measuring the internal temperature of the instrument. Make sure
that the ventilation slots on the right-hand side of the instrument and the ventilation outlet ports on
the back of the instrument are not covered in order to avoid overheating.

Chapter 4 - Initial Operation 17
AMA 310/UMS V21.0
4.4 Connection of the Instrument
For the operation as central unit of the Upstream-Monitoring-System, the instrument has to be
connected to the mains supply and also to a receiver for the transport stream data, which serves to
send the information to the field units VAROS 107 (see Chapter 6 et seq.). For this purpose either
an IP or an ASI output are provided on the back panel of the instrument. One of these outputs has
to be connected to the processing headend equipment.
Now a return channel RF signal has to be supplied to the AMA 310/UMS via the F input on the front
panel of the instrument.
This may either come from the optionally available RF switch SW 024 (for connection see Chapter
4.5 and the relevant operating instructions) or directly from the headend.
In case the SW 024 is used, up to 24 RF clusters or CMTS upstream inputs can be assessed
independently from each other. If operated without RF switch either only one upstream signal can
be measured or several upstream signals are fed together via combiner components on the RF
input of the AMA 310/UMS. In the latter case the disadvantage is given that noise and ingress
components of several upstream paths on the instrument input superimpose which results in a
deterioration of the signal quality (S/N) and may impede the search for the source of the ingress
noises.
4.5 Connection with the optional Cluster-Switch SW 024
The SW 024 switch is to be connected with AMA 310/UMS via two lines. These are supplied as
accessories together with the switch.
The output "Switch Control OUT" of AMA 310/UMS is to be interconnected with the input "Switch
Control IN" of SW 024 via the supplied USB cable. The front output "OUT" of SW 024 is to be
connected to the RF input "RF-IN" of AMA 310/UMS by the supplied F cable bridge.
The length of both cable bridges is made for the intended standard arrangement where the SW 024
is placed below AMA 310/UMS or mounted in the 19" rack. If another arrangement is necessary,
longer cables may be used, but keep in mind that the RF connection always should be as short as
possible such that the calibration is not impaired.
4.6 Switch-On
When the instrument is connected to the mains supply, it is switched on by the ON/OFF switch on
the front panel and set to the basic state. In the basic state, the display now starts showing the
measured values (LC display on the right side of the instrument).
Caution! In combination with the optional RF switch SW 024 the switch always has to
be switched on before the AMA 310/UMS!

18 Chapter 5 - Menu Structure
AMA 310/UMS V21.0
Chapter 5 Menu Structure
The instrument works in a clearly arranged menu structure. The individual menu items are to be
selected by so-called soft keys (F1...F5). A menu page may include up to five menu items. In
addition, the menu includes further menu pages. By the menu items >>> and/or <<< it is possible
to scroll forwards or backwards in the menu. By BACKyou get back to the previous menu.
Every measuring range has its own menu, which is adapted to the relevant operating mode. For
easier operation, the composition of the range menus adapts to the current operating condition of
the measuring receiver. This means that different menus appear in the basic state and when the
instrument is tuned.
Apart from that after pressing the keys ANALYZ (for Analyzer), PRINT and MODE, further
independent main menus appear which additionally structure the scope of functions of the
instrument.
The keys RANGE, ANA/DIG, LNB, RECALL and/or SAVE have no function in AMA 310/UMS.
Via the key HOME the measuring receiver is reset to the basic state.
The functions of the MODE key are only available in the basic state of the instrument.
For the subsequent chapters the following notation is used for describing the menu navigation:
KEY →Menu Item Main Menu →Menu Item Submenu ….
Example: The change of the menu language from English to German in the basic state is done via:
MODE →LANGUAGE → GERMAN
The following figures illustrate the process:
Figure 5-1 Menu display in the basic state of the instrument

Chapter 5 - Menu Structure 19
AMA 310/UMS V21.0
Pressing the key MODE →
Figure 5-2 MODE Menu
Pressing the key F2 (LANGUAGE) →
Figure 5-3 Language Menu
Pressing the key F1 (GERMAN) switches the language to German.
5.1 Navigation in the Menus and Editing of Parameters
For navigating in the submenus and for editing the parameters the blue arrow keys (→, ←, ↓, ↑)
as well as the numeric keyboard of the instrument are used. This will be illustrated below by the
example of the editable downstream frequencies for report generation (see Chapter 8.1.6 Forward
Path Measurement). The relevant submenu will be selected from the basic state of the instrument
via the operating steps UMS SETTING → >>> →DNSTREAMS.
The following LC display content is shown:
Figure 5-4 UMS downstream menu
5.1.1 Navigation with Arrow Keys
If the downstream frequency DS02 is to be changed for example, the arrow key ← has to be
pressed twelve times to select the relevant field.
Figure 5-5 UMS downstream menu - frequency of DS no. 2 selected