VMA 191
Professional Headend Solutions
Device manual
Audio/ Video Modulator
A/V → ATV (AM)
VMA 191
Part No: 9228.8x/ .9x
VMA
191
Part N : 9228.8x/ .9x
o
Audio/ Video Modulator
A/V → ATV (AM)
A
LINE
Contents
1. Safety and operating instructions........................................................................................................... 3
2. Device variants ........................................................................................................................................ 3
3. General .................................................................................................................................................... 3
4. Functional description.............................................................................................................................. 3
5. Explanation of the operating elements.................................................................................................... 4
5.1 Front view ....................................................................................................................................... 4
5.2 Meaning of the LED signals............................................................................................................. 4
5.3 Front panel keypad and tuning wheel............................................................................................. 4
5.4 Rear view ........................................................................................................................................ 5
5.5 9-pin D-SUB connector configuration (alarm contact).................................................................... 5
5.6 Audio socket.................................................................................................................................... 5
5.7 Factory settings............................................................................................................................... 6
6. Programming by web server.................................................................................................................... 6
6.1 Network connection to computer.................................................................................................... 6
6.2 Device status................................................................................................................................... 7
6.3 Standard settings............................................................................................................................. 7
6.4 Extended settings............................................................................................................................ 8
6.5 Software overview............................................................................................................................ 8
6.6 IP network . .................................................................................................................................... 9
7. SNMP management............................................................................................................................... 10
7.1 Download MIB............................................................................................................................... 10
7.2 Trap messages.............................................................................................................................. 10
8. Menu structure of display handling....................................................................................................... 11
9. Block diagram ....................................................................................................................................... 12
10. Technical data ..................................................................................................................................... 12
11. Glossary .............................................................................................................................................. 13
12. Bibliography ........................................................................................................................................ 13
13. Document history ................................................................................................................................ 13
2
VMA
191
Part N : 9228.8x/ .9x
o
Audio/ Video Modulator
A/V → ATV (AM)
A
LINE
1. Safety and operating instructions
When assembling, starting-up and adjusting the modules, it is necessary to consider the system specific references in
the manual instruction!
The modules may only be installed and started up by authorized technical personnel!
When assembling the modules into the receiving points, the adherence of the EMC regulations is to be secured!
The assembly and wiring have to be done without voltage!
With all work the defaults of the DIN EN 50083 have to be considered! Especially the safety relevant execution of the
DIN EN 60728-11 [1] is necessary!
The devices come under protection classification I. It is absolutely necessary, therefore, to insert the mains plug into a
socket with protective contact
2. Device variants
VMA 191
VMA 191
VMA 191
VMA 191
VMA 191
9228.82
9228.85
9228.91
9228.92
9228.94
A/V → IFI → ATV (AM) Norm B/G
A/V → IFI → ATV (AM) Norm M
A/V → IFI → ATV (AM) Norm D/K 1*
A/V → IFI → ATV (AM) Norm D/K 2*
A/V → IFI → ATV (AM) Norm D/K 4*
* D/K 1: standard D/K with sound carrier 6.5 MHz and 6.25 MHz
D/K 2: standard D/K with sound carrier 6.5 MHz and 5.74 MHz
D/K 4: standard D/K with sound carrier 6.5 MHz
3. General
The Audio/ Video Modulator VMA 191 is a module of the head end system A-LINE which is conceived as a complete system for
big and middle-sized networks. The VMA 191 generates an analogue TV signal in whole cable frequency range.
4. Functional description
The video processing contains a video low pass with a sound trap, a group delay-pre-equalization, clamping circuit and a
switchable video AGC. The video AGC function requests one white pulse per field in any line within the source signal (white level
adjustment control); alternatively AGC has to be deactivated. The magnitude of the residual carrier is determined by video amplitude of the input signal in this case. The audio processing contains a symmetric input amplifier, an audio low pass, a level setting
element and a switchable audio summing unit in the 9228.85 respectively a switchable stereo/ dual tone-coder otherwise. These
unit respectivly coder allows remote accesses manually, VPS controlled or via corresponding contacts into the audio socket
(see chapter 5.6). There is the possibility to configure an asymmetric audio input. An electronically switch connects pin 4 and 5
inside the device on ground. Analog video and audio signals are fed to separate modulators and summarized at IF mixer. After IF
filtering follows the conversion in the wanted output channel by the help of a duplex frequency conversion. The operation of high
level mixers and fractional N-PLL‘s assure a high output performance. The output channel is free adjustable between 45…862
MHz. The modulator is adjacent channel fitted. For level error reporting a reference level is generated internally and is compared
with current value permanently. After each programming of the level and/or frequency values an automatic measurement of the
reference level takes place. The monitoring of the input signal is done at the output of the VMA 191. If the IF loop is activated the
IF input is weighted.
The integrated management unit consists of the data interface for PC/LAN/WAN (IP/ Ethernet interface / RJ 45). The management
of the module can be done via PC/Laptop (see programming). The status of the module will displayed with LEDs (see section 5.2
”Meaning of the LED signals”). The IP address of each device can be edited and adjusted to the respective LAN.
3
VMA
191
Part N : 9228.8x/ .9x
o
A
Audio/ Video Modulator
A/V → ATV (AM)
LINE
5. Explanation of the operating elements
5.1 Front view
POWER - LED
STATUS - LED
SYNC. - LED
ERROR - LED
Tuning wheel
Display
Test (-30 dB)
Front panel keypad
5.2 Meaning of the LED Signals
Designation (Colour)
Status
Meaning of display
POWER (green)
permanently on
Device is ready for working
off
Device is off, without current supply
permanently on
Device working properly
off
RF output is deactivated
permanently on
Video input is ok
flashing
Video input is not ok (e.g. in case of missing input signal)
permanently on
Device is in standby
flashing
Device is faulty (hardware error)
STATUS (green)
SYNC. (green)
ERROR (red)
5.3 Front panel keypad and tuning wheel
ESCAPE
By activating the ESCAPE-Pad you exit the current menu cycle. The input function switches back to the inactive status and jumps to the status information (Start display)
By activating the BACK-Pad you leave the current mode (Menu selection) without any acceptance of settings
or adjustments. The cursor jumps one menu level higher.
BACK
Pressing of the tuning wheel is equivalent to the ENTER-Function.
The cursor switches to the active mode. Tuning the wheel right or left enables to select an menu entry, the
menu selection will be confirmed by pressing the wheel.
Each parameter function can be edited by pressing the tuning wheel (ENTER). By tuning the wheel you can
position the cursor to the desired selection. By pressing the tuning wheel (ENTER) you switch to the Editmode. The text- and/or number positions can be individually selected by tuning the wheel. Pressing the wheel
(ENTER) confirms your input and switches back to the selection mode. After a complete and correct adjustment you have to position the cursor right to the symbol ↵ ENTER and confirm it by pressing the tuning
wheel. The display switches back to the selection mode of the parameter display!
4
VMA
191
Part N : 9228.8x/ .9x
A
Audio/ Video Modulator
A/V → ATV (AM)
o
5.4 Rear view
FUSE OF DEVICE
ALARM
POWER
LAN / WAN
FACTORY SET RF-OUT
AUDIO-IN VIDEO-IN
IF-IN IF-OUT
5.5 9-pin D-SUB connector configuration (alarm contact)
1 2 3 4 5
Alarm active:
Pin 8 and Pin 9 are closed
Pin 8 and Pin 7 are open
Normal operation
Pin 8 and Pin 9 are open
Pin 8 and Pin 7 are closed
6 7 8 9
5.6 Audio socket
Pin assignment
5
3
8
2
4
7
1
1
2
3
4
5
6
7
8
stereo left+ / dual A+ / mono+
screening / earth
stereo right+ / dual B+
stereo left- / dual A- / monostereo right- / dual Bcontrol line contact 1
control line contact 2
control line return path (earth)
6
External control of the audio mode
9228.82/ .91/ .92:
9228.85:
Mono
Pins 6/ 8: Connection open
Mono L
Pins 7/ 8: Connection closed
Stereo
Pins 6/ 8: Connection closed
Pins 7/ 8: Connection open
Dual
Pins 6/ 8: Connection closed
Pins 7/ 8: Connection closed
or
Pins 6/ 8: Connection open
Mono L+R
Pins 7/ 8: Connection open
5
Pins 6/ 8:
Pins 7/ 8:
or
Pins 6/ 8:
Pins 7/ 8:
or
Pins 6/ 8:
Pins 7/ 8:
Connection open
Connection closed
Connection closed
Connection closed
Connection open
Connection open
Pins 6/ 8: Connection closed
Pins 7/ 8: Connection open
LINE
VMA
191
Part N : 9228.8x/ .9x
o
A
Audio/ Video Modulator
A/V → ATV (AM)
5.7 Factory settings
LINE
By pressing of the switch “FACTORY SET“ at the rear side of the device all settings stored in the EEPROM will be deleted and replaced by the default settings. The device will go back to these default values. The default settings are listed in chapter 8 (Menu structure of display handling).
6. Programming by web server
6.1 Network connection to computer
System requirements:
- PC/ laptop with 10/100 Mbit Ethernet interface
- Internet browser (e.g. Windows Internet Explorer), which accept
JAVA-Script.
Setup the connection:
The VMA 191 must be connected to PC Network using an Ethernet cable.
The IP address of the VMA 191 control port is 192.168.2.80 on delivery.
The address of the network connection at the compter must be adapted to
the IP address of the VMA 191 (subnet mask: 255.255.255.0, IP address:
192.168.2.XXX). Don`t be use the same combination lock for XXX like the
IP address of the VMA 191. The IP address of the VMA 19x is entered onto
the browser interface.
When the link up has been successfully made, the device starts with the
device status page.
The language (english/ german) can be selected on the right side of each
page. To change the settings of the device at the first user log-in window
will be open automatically.
The access to the configuration menu is password protected.
Access data (factory settings):
Registration details
Valid string
User name
user
Password
password
After successful log-in the parameters can be modified.
The user log-in is only temporarily. The connection has to be refreshed
after some time.
6
VMA
191
Part N : 9228.8x/ .9x
o
A
Audio/ Video Modulator
A/V → ATV (AM)
6.2 Device status
LINE
Choose language german, english
Device settings
Identifier
Frequency Level Level monitoring
Tolerable level variation
RF-Signal e.g. programme name acc. adjustments in 6.3
acc. adjustments in 6.3
acc. adjustments in 6.3
acc. adjustments in 6.3
acc. adjustments in 6.3
on/ off acc. adjustments in 6.3
Information
Video input Up Converter
RF-Amplifier
VPS Data
Date
Time
Device number Device index Temperature
display SYNC pulse or noSYNC pulse at the video input
status of up converter, not ok → device faulty
status of RF-Amplifier, not ok → device faulty
display of reading VPS data: date, time, nation code + address range, sound data + special identification
acc. adjustments in 6.3
acc. adjustments in 6.3,
12/ 24-h-mode selectable
display of the device number
display of the device index (hardware)
temperature of device, °C/ °F selectable
Choose language german, english
6.3 Standard settings
Identifier
Name
independent text field for device identification (max. 30 characters)
Output
Channel channel selction (2 ... 69, standard B/G,
R1 ... 69, standard D/K,
2 ... 134, standard M)
Level
adjustment range: -10 ... +14 dBm
RF-Signal selection: on/ off
Level monitoring
selection: on/ off
Tolerable level variation
selection: ± 1 dB ... ± 5 dB, 0.5 dB steps
IF-Loop
Input/ Output
Input frequency
Output frequency
selection: Activated/ Deactivated
selection: 36.000, 36.125, 36.150, 38.900, 44.000, 45.750 MHz
38.900 MHz
SNMP
SNMP trap message on/ off
Date/ Time
Date
Time
input format: dd.mm.yy
input format: hh:mm (AM/ PM)
Date/Time input must be set to initialize internal clock (after first start-up of device or reinitializing after a longer shut-down).Additional selection of AM/PM in 12-h-mode.
7
VMA
191
Part N : 9228.8x/ .9x
o
Audio/ Video Modulator
A/V → ATV (AM)
A
LINE
6.4 Extended settings
Choose language german, english
Input
Audio impedance
Audio signal
Audio level
Audio mode
selection: 600/ 12000 Ohm
selection: balanced/ unbalanced
adjustment range: -6 ... 9 dBu
selection: auto (VPS), extern, mono, stereo, dual (if sound carrier 2 on)
auto (VPS), extern, monoL, monoL+R (if sound carrier 2 off)
Video low pass
selection: On/ Off
Video clamping
selection: soft/ hard
Video AGC
selection: On/ Off
Output
Sound deviation
selection: 30 kHz (if sound carrier 2 on)
30/ 50 kHz (if sound carrier 2 off)
Sound carrier 2
selection: On/ Off
Picture carrier frequency
adjustment range: 45000 ... 862000 kHz
6.5 Software overview
Choose language german, english
Software versions:
WEB-Frontend
WEB Server
System software
System Controller
Up Converter
RF Amplifier
Display Controller
8
VMA
191
Part N : 9228.8x/ .9x
o
A
Audio/ Video Modulator
A/V → ATV (AM)
LINE
6.6 IP network
Selecting this menu at first the administrator log-in window
will be open automatically.
Following successful log-in the network and log-in settings
can be changed.
Choose language german/english
Factory settings are:
Network settings
IP-Address:
Subnet mask:
Default gateway:
MAC-Address:
192.168.2.80
255.255.255.0
192.168.2.1
display of MAC-Address
Login settings
Administrator login:
User name:
Password:
admin
password
User login:
User name:
Password:
user
password
SNMP-Settings
SNMP-Access:
Read community:
Write community:
public
public
Trap settings:
Trap community:
Trap receiver IP
1
2
3
public
0.0.0.0
0.0.0.0
0.0.0.0
• Administrator- and/or user-login can be deactivated by clearing of user
name and password.
• The addresses must be matched to the respective network.
9
VMA
191
Part N : 9228.8x/ .9x
o
A
Audio/ Video Modulator
A/V → ATV (AM)
LINE
7. SNMP management
7.1 Download MIB
Choose language german/english
The complete MIB for an VMA 191 can be downloaded like descriped under “Instructions“ on this web-site and clicking the “MIB Download”-link.
With the aid of an MIB browser, the relevant MIB can be decided upon and
taken over to control the device via a SNMP manager and/or an network
manager capable of SNMPv2c.
7.2 Trap messages
Item
Message
Message Type
Explanation
01
System Reset
WARNING
reset by internal error
02
Signal ok
INFORMATION
module works correctly
03
Input not sync
WARNING
no signal at the video or IF input
04
IIC error
CRITICAL
IIC bus error
05
Internal controller reset
WARNING
error when accessing internal controller
06
No response to OPEN command
CRITICAL
error of an internal port
07
Up Converter: PLL1 not locked
CRITICAL
no funktion at the PLL 1 converter
08
Up Converter: PLL2 not locked
CRITICAL
no funktion at the PLL 2 converter
09
Up Converter: IF input too small
WARNING
IF level at Up converter input too small
10
Up Converter: IF input too large
WARNING
IF level at Up converter input too large
11
UP Converter: IF input ok
INFORMATION
IF level at Up converter input ok
12
Amplifier: RF Level too large
WARNING
RF level at amplifier too large
13
Amplifier: RF Level too small
WARNING
RF level at amplifier too small
14
Amplifier: RF Level ok
INFORMATION
RF level at amplifier ok
15
Input sync
INFORMATION
signal at video input ok
10
VMA
191
Part N : 9228.8x/ .9x
o
A
Audio/ Video Modulator
A/V → ATV (AM)
LINE
8. Menu structure of display handling
The following settings are the default settings. After a reset by pressig of „FACTORY SET“ on the rear side of the device all settings
stored in the EEPROM will be deleted and replaced by these defaults and the device will go back to these settings (see chapter 5.7).
A/V Input → Audio settings
Audio impedance:
12000 Ohm
Audio signal:
balanced
Audio level:
6 dBu
Audio mode:
auto (VPS)
Back
A/V Input
Audio settings
Video settings
Back
RF Output
Configuration
Settings
Back
A/V Input → Video settings
Video low pass:
Video clamping:
Video AGC:
Back
On
hard
Off
RF Output → Configuration
RF-Signal:
Level monitoring:
Level variat. (dBm):
Back
On
Off
±1
RF Output → Settings
Sound deviation:
Sound carrier 2:
Frequency (kHz):
Level (dBm):
Back
Main menu
A/V Input
RF Output
IF Loop
Communication
System
Quit
IF Loop
Input/Output
Input frequency
Back
30 kHz
On
303250
+8
Deactivated
38.900 Communikation → Ethernet
IP-Adress:
192.168.002.080
Subn.mask:
255.255.255.000
Gateway:
192.168.002.001
Back
Communication
Ethernet
SNMP
Back
Communikation → SNMP
Trap Messages:
Off
Read Community:
public
Write Community:
private
Trap Community:
public
Trap IP1:
000.000.000.000
Trap IP2:
000.000.000.000
Trap IP3:
000.000.000.000
Back
System
Description:
Language:
Time:
Date:
Back
VMA 191
English
12:00
01.01.2009
11
VMA
191
Part N : 9228.8x/ .9x
o
A
Audio/ Video Modulator
A/V → ATV (AM)
LINE
9. Block diagram
IF
Vestigial
sideband
IF modulator
Video/
AudioProcessing
IF
2x FM
modulator
Audio/
Video
Filterbank
RF
+ 12 V
RF
Test output
Controller +
Display
—
~
Power supply
Power
IP-Control port
10. Technical data
Video input
Input voltage with AGC without AGC Impedance Connector Input filter (disconnectable) Clamping (switchable) AGC 0,8 … 1,3 Vpp
1 Vpp
75 Ω
BNC socket
5 MHz low pass
soft/ hard
disconnectable
Audio input
Input level Input resistance (switchable)
Connector Configuration (switchable)
-6 ... +9 dBu
0.6/ 12 kΩ
8-poles according to DIN 45326
(IEC 130-9-20)
balanced/ unbalanced
IF loop
Output/ input
Output frequency
Input frequency
Output/ input level
Connector
IF decoupling
internal jumpered or external avail-
able (switchable)
38.900 MHz
36.000, 36.125, 36.150, 38.900, 44.000, 45.750 MHz
- 14 dBm (95 dBµV)
2 x BNC socket, 75 Ω
≥ 80 dB
RF output
9228.82
TV standard
B/G
Sound carrier frequencies 5.5/ 5.742 MHz above pic. carrier
9228.91:
TV standard
D/K
Sound carrier frequencies 6.5/ 6.25 MHz above pic. carrier
9228.92:
TV standard
D/K
Sound carrier frequencies 6.5/ 5.742 MHz above pic. carrier
9228.85:
TV standard
Sound carrier frequencies
M
4.5 MHz
9228.82/ .91/.92:
Sound procedure
Sound operation modes
Sound dev. 1 mono carrier Sound dev. 2 mono carrier Sound dev. dual tone FM dual carrier processing
mono/ stereo/ dual/ auto (VPS controlled)/ external
30/ 50 kHz
30 kHz
30 kHz
9228.85:
Sound procedure
Sound operation modes
Frequency deviation Output frequency range
Tuning step
Max. output level Level adjustment range Channel allocation Connector Return loss Test output
mono/ summing left-right/
auto (VPS controlled)/ external
± 25 kHz
45 ... 862 MHz
10 kHz/ 25 kHz*
14 dBm (123 dBμV)
-10 ... +14 dBm
adjacent channel ability
F socket, 75 Ω
≥ 18 dB 45 MHz
- 1.5 dB/ Octave
- 30 dB (± 1 dB)
Signal quality
Single channel intermodul. ≥ 66 dB
Noise level 3rd order ≥ 60 dB
Spurious 45 ... 862 MHz ≥ 60 dB
C/N within cannel (BW =
4,8 or 4,2 MHz in 9228.85) typ. 69 dB
C/N (> 25 MHz space from
channel center; BW = 4,8
or 4,2 MHz in 9228.85) typ. 80 dB
Parallel sound noise ratio
unweighted/ weighted
typ. 68/ 59 dB
Max. frequency stability
± 30 kHz
Output level stability
± 0.5 dB (5 .. 45 °C)
Output level accuracy
± 1.5 dB
Amplitude frequency
response channel (8 MHz)
max. 1 dBpp
Operation parameters
Voltage / current
100 ... 240 V ~ 50/60Hz
100 ... 353 V =
Power consumption
18 W
Environmental conditions
Temperature range
Temperature range
(for data keeping)
Relative humidity
Mounting location Delivery content
Dimensions (w x h x d)
Weight *
FM one carrier processing
12
-10 ... +55 °C
5 ... 45 °C
≤ 80 % (non condensing)
splash-proof
and drip-proof
448 x 44 x 350 mm
4,200 g
25-kHz-step only with active IF loop and 36.125 MHz input frequency
VMA
191
Part N : 9228.8x/ .9x
o
A
Audio/ Video Modulator
A/V → ATV (AM)
LINE
11. Glossary
AGC AM ATV AV BW
C/N EMC
FM HTML HTTP IF IFI IIC
IP
LAN
LED
MAC
MIB
RF
SNMP
TV VPS WAN
Automatic Gain Control
Amplitude modulation
Analogue Television
Audio/Video
Bandwidth
Carrier to Noise ratio
Electromagnetic Compatibility
Frequency modulation
Hypertext Markup Language
Hypertext Transfer Protocol
Intermediate Frequency
Intermediate Frequency Interface
Inter-Integrated Circuit (I²C bus, device internal data bus)
Internet Protocol
Local Area Network
Light Emitting Diode
Media Access Control
Management Information Base
Radio Frequency
Simple Network Management Protocol
Television
Video Programming System
Wide Area Network
12. Bibliography
[1] EN 60728-11: Cable networks for television signals, sound signals and interactive services Part 11: Safety
(IEC 60728-11:2005); German version EN 60728-11:2005
[2] RFC 1157 Request for Comments (RFC): RFC Database URL: Http://www.rfc-editor.org/rfc.html
[3] EN 50083-2 : Cabled distribution systems for television and sound signals. Electromagnetic compatibility for equip
ment; EN 50083-2:2001
13. Document history
Version
Date
Modification
Author
1.00
13.08.2009
basic document
Häußer
Options and other TV standards available upon request! Subjects to changes due to technical progress.
BLANKOM Antennentechnik GmbH
Hermann-Petersilge-Straße 1 • 07422 Bad Blankenburg • Germany • Telefon +49 (0) 3 67 41 / 60-0 • Fax +49 (0) 3 67 41 / 60-100
13
Declaration of Conformity
The Manufacturer
BLANKOM Antennentechnik GmbH ∙ Hermann-Petersilge-Str. 1 ∙ 07422 Bad Blankenburg ∙ Germany
herewith declares the conformity of the product group
Product name:
Audio/ Video Modulator
Type:
VMA 191
Product number:
9228.8x, 9228.9x
according to the following regulations
EN 50083-2
EN 60728-11 (as far as relevant)
and additional device-specific regulations, enclosed above, which these products are subjected to.
Date: 13.08.2009
Signature:
Piero Kirchner
(Managing Director)
14
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