Wisi VX 52 B Series User manual

Operating instructions
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VX 52 B / VX 53 B series
RF amplifier - single output stage
417819-a (08/2019)
Knowledge Base > VX series > Products > VX 52 B / VX 53 B
http://bit.ly/wisivx52_53b

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Operating instructions
© WISI Communications GmbH & Co. KG wisigroup.com -2-
VX 52 B / VX 53 B series
RF amplifier - single output stage
Document revision information:
Date Doc.
rev.
Document changes
08.08.2019 a Separation of VX 52 B / VX 53 B from the VX 5x B series
Changeover to new layout and outline
VX 58 B: Signal monitoring, ALSC, auto-alignment
FW v1.0.0.20 / HFC manager v2.1.8
This document was split off from the common manual for the VX 5x B series (414874).
CE declaration of conformity
Please find the declaration of conformity at our website:
https://www.wisi.de/en/communications/service/download-area/
Then navigate through “CE Declarations of Conformity” and select the document link
corresponding to your device.

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Operating instructions VX 52 B / VX 53 B series
RF amplifier - single output stage
Contents
1 Safety and warning notes ............................................................................ 4
1.1 ESD protection ............................................................................................. 4
1.2 Electrical safety ............................................................................................ 4
2 Mechanical overview .................................................................................... 5
3 Control interfaces .......................................................................................... 6
3.1 Handset interface (WISI OH 41) ................................................................... 6
3.2 Bluetooth interface (WISI HFC manager+) .................................................... 7
3.3 Remote control via HMS transponder WISI VT 52 B ................................... 10
3.4 Remote control via FSK receiver module WISI VT 21 .................................. 13
4 Installation and maintenance ..................................................................... 14
4.1 Remote powering ...................................................................................... 14
4.2 Downstream configuration ........................................................................ 15
4.3 Upstream configuration ............................................................................. 18
4.4 Signal monitoring, ALSC and auto-alignment (WISI VX 58 B) ..................... 21
4.5 Firmware update ........................................................................................ 26
5 Functional diagram ...................................................................................... 27
6 Service and support: wisiconnect.tv .......................................................... 28
Operating instructions
VX 52 B / VX 53 B series -
RF amplifier (single output stage)

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Operating instructions
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VX 52 B / VX 53 B series
RF amplifier - single output stage
1 Safety and warning notes
Please read the instructions before using the equipment.
Carefully inspect the device for any obvious damage. If it appears to have
been damaged, contact your WISI representative.
Do not use any equipment with noticeable damage!
1.1 ESD protection
This product contains electrostatic sensitive components.
These parts can be damaged or effectively destroyed by electrostatic dis-
charge (ESD) during unpacking, installation, removal, storage, or shipment
if incorrectly handled.
Please note that discharge might go unnoticed by a user.
Always take common anti-static precautions when handling the equipment.
1.2 Electrical safety
Risk of bodily injury from electric shock!
Failure to adhere to these instructions could result in personal injury and/or
damage to electrical components.
•The equipment must be grounded in accordance to local and national electrical
standards.
•The device is started up immediately when the power plug is inserted into the
mains socket. To turn off the power supply, the plug must be removed from the
socket. Never pull at the cable.
•The mains socket should be easily accessible. In the event of operational error, the
plug must be immediately removed from the socket.
•The power supply partition of the equipment as well as all coaxial interfaces carry-
ing remote power feeding contain dangerous voltages. All service or maintenance
work should be carried out by qualified personnel who can get assistance by con-
tacting the manufacturer’s agent.

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Operating instructions VX 52 B / VX 53 B series
RF amplifier - single output stage
2 Mechanical overview
Lid reten�on screws
(2 +0.5 Nm)
Mains input
Bluetooth antenna
WISI LB 01
RF output 1
RF output 2
RF loop-through
RF input
Outer overview on the housing features of the amplifier.
Housing accessories:
WISI type Description Notes
XE 29 Cabling kit for remote power insertion for VX 53 B
ZG 27 PG 11 case connection for WISI MK 15 cable
ZG 28 PG 11 adapter, F female
ZG 35 A PG 11 adapter, 3.5/12 female pre-equipped on VX
53 B CC, VX 53 B CH01
LB 01 Bluetooth antenna for PG 11 pre-equipped

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VX 52 B / VX 53 B series
RF amplifier - single output stage
3 Control interfaces
Bluetooth
activation LED
Socket for
handset control
Bluetooth activation button
Effective only if „BT function“ is set to „Timeout“
WISI LB 01
bluetooth antenna
Local user interfaces of the amplifier.
3.1 Handset interface (WISI OH 41)
NOTE: The VX 52B / 53B only works with handsets OK41A and OH41. OK41 is out-
dated and not compatible.
Handset basics
Parameter menu
▲▼ keys Select parameter
►key Open parameter sub-menu
◄key Back
Parameter sub-menu
◄► keys Select digit to be changed (cursor blinks under the active digit)
▲▼ keys Change the value
Saving: After completion of all settings, press the ► key for leaving the value field.
The settings are saved now.
NOTE: If not saved, settings are lost as soon as the handset is disconnected.

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Operating instructions VX 52 B / VX 53 B series
RF amplifier - single output stage
3.2 Bluetooth interface (WISI HFC manager+)
The management interface of VX 52 B / VX 53 B can be accessed using the bluetooth
low-energy (BLE) wireless technology. The bluetooth antenna WISI LB 01 enables the
radio connection to a smart phone or tablet, and the Android app WISI HFC Manag-
er+ provides the GUI for the configuration of the fiber node.
3.2 .1 Multilevel security implementation
There are three security levels implemented to prevent the node from unauthorized
access. The figure below shows the security levels and the according security mecha-
nism.
Level 1: Button activation
The BT activation button inside the node (see figure above) opens the bluetooth inter-
face for connections. The button activation behavior can be modified via handset.
Button activation behavior:
Handset: Bluetooth > BT Function > [timeout] / [on] / [off]
default: [timeout]
Level 2: Key authentication
If Bluetooth bonding is enabled, the connecting mobile device needs to authenti-
cate with a configurable key. The initial key is 565835, you can change it as described
below (key modification).
NOTE: Please activate the bluetooth bonding and change the key during the first set-
up in order to avoid unauthorized access!
Bluetooth bonding (key restriction)
Handset: Bluetooth > BT Bondmanager > [no bonding] / [bonded] /
[scrambled]
default: [no bonding]

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VX 52 B / VX 53 B series
RF amplifier - single output stage
Key modification:
Handset: Bluetooth > BT Key > 6 digits, numerical
default: 565835
Level 3: Access control list (ACL)
Once paired, a BT device is put on the access list. If ACL restriction is enabled, the
amplifier will only allow clients within this list to connect. The list is cleared by switch-
ing the ACL restriction filter off.
ACL restriction:
Handset: Bluetooth > BT MAC Filter > [filter off] / [filter on]
default: [filter off]
3.2.2 Get the app: WISI HFC manager+
Please install the android app from the Google Play Store:
https://play.google.com/store/apps/details?id=de.wisi.hfc_manager

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Operating instructions VX 52 B / VX 53 B series
RF amplifier - single output stage
3.2.3 App overview
When starting up the application, the device scan listing will populate with the active
Bluetooth devices nearby:
Device scan list (example)
Select your device and wait for the connection to be established. Once connected, the
Bluetooth logo in the upper right corner will show the connection quality.
The start screen provides a selected set of device details:
Device overview including module recognition (example)
The menu is available through the blue logo in the upper left corner:
App menu overview (example)

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Operating instructions
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VX 52 B / VX 53 B series
RF amplifier - single output stage
3.3 Remote control via HMS transponder WISI VT 52 B
WISI VT 52 B
HMS transponder module
in socket (8)
Status LED
Reset button
Press to reboot transponder
Position of the transponder socket for the WISI VT 52 B.
3.3.1 Firmware compatibility
Support for the HMS remote control of VX 52 B / VX 53 B via VT 52 B is implemented
since the following firmware revisions:
• VX 52 B / VX 53 B: v1.0.0.20 or newer
• VT 52 B: L03.01.01.000 or newer
For compatibility reasons, please make sure that both products are operating on a
suitable firmware revision. See section 4.5 on page 26 of this manual and/or the VT
52 B documentation (e.g. http://bit.ly/wisivt52b) for more details about firmware
updates.

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Operating instructions VX 52 B / VX 53 B series
RF amplifier - single output stage
3.3.2 Basic transponder setup
We recommend the following steps for the establishment of an HMS connection to
the VX 52 B / VX 53 B.
1. We assume that the amplifier is properly configured for RF transmission in down-
and upstream, e.g. according to sections 4.2 and 4.3, and that the transponder
module is mounted in the designated slot as shown above. An HMTS (e.g. Cisco
Phoenix) must be connected to the HFC line and properly configured for the regis-
tration of new transponders.
2. After initialization of the amplifier‘s on-board communication (can take up to 30
seconds), the remote module type will be shown on the user interface. The sta-
tus LED will shine red.
3. Set the HMS downstream frequency to the channel frequency the transponder
is ment to listen to.
4. Make sure the HMS downstream level is in the appropriate range (45...75 dBμV).
NOTE: It may take up to 30 seconds until the monitoring values in the user interface
are updated.
5. The HMS registration status will change from „noHMSSignal“ to „validHMSSig-
nal“. The upstream frequency is set by the HMTS („validChnlDesc“).
6. Depending on the configuration of the registration interval in your HMTS, it might
take some minutes until the the HMTS starts the registration process (HMS reg-
istration status „startREG“ / “sendREGREQ“). During the registration procedure,
the status LED will be blinking red.
NOTE: If registration fails to start, maybe the transponder‘s HMS upstream level
needs to be adjusted.
7. The IP address assignment can vary depending on the configuration of your HMS
system. You can identify the transponder by its HMS MAC address in the device
table of the HMTS in order to assign an IP address remotely, or set an appropriate
HMS IP address in the local user interface.
8. Once the HMS registration is successfully finished, the status LED will turn off and
the HMS registration status is „successREG“. You can now access the LR 44 via
SNMP / HMS.
Remote module type
Handset: Remote-Modul > Module Type > [no module plugged] /
[VT 52 B (HMS)]
SNMP: OID 1.3.6.1.4.1.5591.1.3.1.3.0
(commonModelNumber)

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VX 52 B / VX 53 B series
RF amplifier - single output stage
HMS downstream frequency
Handset: Remote-Modul > DS Freq > 48...162 MHz
0.1 MHz steps
SNMP: OID 1.3.6.1.4.1.5591.1.3.5.2.0
(commonForwardPathFrequency)
HMS downstream level
Handset: Remote-Modul > DS Level > 15.2...99.9 dBµV
0.1 dB steps
SNMP: OID 1.3.6.1.4.1.5591.1.3.5.4.0
(commonForwardPathReceiveLevel)
HMS registration status
Handset: Remote-Modul > Reg.State > [noHMSSignal] /
[validHMSSignal] /
[validChnlDesc] /
[startREG] /
[sendREGREQ] /
[successREG]
SNMP: OID 1.3.6.1.4.1.7465.20.2.3.2.10.0
(hfcRegistrationState)
HMS upstream level
Handset: Remote-Modul > US Level > default: 90 dBµV
0.1 dB steps
SNMP: OID 1.3.6.1.4.1.5591.1.3.5.3.0
(commonProvisionedReturnPowerLevel)
HMS MAC address
Handset: Remote-Modul > MAC Address > XXXXXXXXXXXX
SNMP: OID 1.3.6.1.4.1.5591.1.3.2.7.0
(commonPhysAddress)
HMS IP address
Handset: Remote-Modul > IP Address > XXX.XXX.XXX.XXX
SNMP: OID 1.3.6.1.4.1.5591.1.3.1.9.0
(commonNetworkAddress)

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Operating instructions VX 52 B / VX 53 B series
RF amplifier - single output stage
3.4 Remote control via FSK receiver module WISI VT 21
WISI VT 21
FSK receiver module
in socket (11)
Position of the FSK-receiver socket for the WISI VT 21 (Fostra-F-compatible).

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VX 52 B / VX 53 B series
RF amplifier - single output stage
4 Installation and maintenance
4.1 Remote powering
Adapt the remote powering configuration to specific requirements by (un)plugging
the provided fuses according to the following block diagrams:
Functional diagram of the power supply circuitry.
Spare fuses Fuse removal tool
Power supply covering
Do not remove!
Features around the power supply compartment.

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Operating instructions VX 52 B / VX 53 B series
RF amplifier - single output stage
F1
Fuse for RF input
F2
Fuse for RF loop-through
F3
Fuse for RF output 2
F4
Fuse for RF output 1
RF
input RF loop- through RF output 2 RF output 1
Location of the fuse sockets inside of the amplifier.
4.2 Downstream configuration
Downstream block diagram.

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VX 52 B / VX 53 B series
RF amplifier - single output stage
Jumper socket
for impedance matching
of open loop-through port
(1) Input
configuration
(TP1) Input
test port
(bidirectional)
(2) Input
diplexer
(3) Universal
input plugin
(4) Universal
interstage plugin
(5) Output
diplexer
(TP3) Output
test port
(6) Output
configuration
Downstream hardware features.
Flip open the shielding on the right side for access to the output modules.
4.2.1 Modules for input and output configuration
Sockets (1) and (6)
The nominal RF input level for the VX 52 B / VX 53 B is 70 dBμV per channel. If, due
to special signal scenarios, the input signal is strongly sloped or much higher than the
nominal level, pluggable input configuration modules can be used in order to
facilitate the signal alignment.
Plugged into slot (1) for input configuration, the tap modules will effect their tap loss
in the main signal path and their through loss towards the RF loop-through.
Plugged into slot (2) for output configuration, the tap modules will effect their through
loss towards RF output 1 and their tap loss towards RF output 2.
NOTE: The insertion loss of output splitters and taps will affect the available down-
stream level at the RF ports!

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Operating instructions VX 52 B / VX 53 B series
RF amplifier - single output stage
WISI type Description Notes
- Bridge 0 dB pre-equipped on (6)
XM 06 B Attenuator 0 dB / 6 dB pre-equipped on (1)
XM 51 B Splitter 4 dB / 4 dB
XM 53 B Tap 8 dB / 2 dB
XM 55 B Tap 13 dB / 1 dB
XM 56 B Tap 18 dB / 1 dB
XM 69 B Attenuator 6 dB / 9 dB
The jumper socket for impedance matching of the open RF loop-through port
enables the use of input taps and splitters as bare attenuation modules by mitigation
of undesired backreflections from the unused port.
4.2.2 Diplex filters
Sockets (2) and (5)
Please see upstream section 4.3.1 on page 19 for details.
4.2.3 Universal modules for level alignment
Sockets (3) and (4)
WISI type Description Notes
- Bridge 0 dB pre-equipped on (3), (4)
XE 51 B Slope 3 dB / 9 dB
XE 52 B Slope 12 dB / 18 dB
XE 57 B Cable simulation 6 dB / 9 dB
NOTE: Slope values are specified for the 1218 MHz band.

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RF amplifier - single output stage
4.2.4 Downstream level and slope alignment
Input attenuator
BT app: DOWNSTREAM > Input Attenuator > 0 ... 20 dB
0.1 dB steps
Handset: Downstream > InputAttenuator >
Slope pivot frequency
BT app: DOWNSTREAM > Input Equalizer > Frequency Mode > [1006 MHz] /
[1218 MHz]
Handset: Downstream > BorderFreq >
Input equalizer
BT app: DOWNSTREAM > Input Equalizer > Input Equalizer > 0 ... 15 dB
0.1 dB steps
Handset: Downstream > BorderFreq >
Interstage slope
BT app: DOWNSTREAM > Interstage Slope > 0 ... 15 dB
1.0 dB steps
Handset: Downstream > InterStageSlope >
Interstage attenuator
BT app: DOWNSTREAM > Interstage Attenuator > 0 ... 20 dB
1.0 dB steps
Handset: Downstream > InterStageAtt >
4.3 Upstream configuration
Upstream block diagram.

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Operating instructions VX 52 B / VX 53 B series
RF amplifier - single output stage
(1) Input
configuration
(TP1) Input test port
(bidirectional)
(2) Input
diplexer (10) Upstream
amplifier module
(5) Output
diplexer
(TP3) Output
test port
(6) Output
configuration
(TP2) Test port
„US amp out“
Upstream hardware features.
Flip open the shielding on the right side for access to the output modules.
4.3.1 Input and output diplexer modules
Sockets (2) and (5)
WISI type Description Notes
-Surge protection filter
(Downstream only)
pre-equipped in standard types
XE 50 B 0650 Diplex filter 65 / 85 MHz pre-equipped in
VX 52 B CC / VX 53 B CC,
VX 52 B CH01 / VX 53 B CH01
XE 50 B 0850 Diplex filter 85 / 108 MHz
XE 50 B 2040 Diplex filter 204 / 258 MHz

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VX 52 B / VX 53 B series
RF amplifier - single output stage
4.3.2 Upstream amplifier modules
Socket (10)
WISI type Description Notes
VX 50 B 0650 Upstream amplifier module,
65 MHz
pre-equipped in
VX 52 B CC / VX 53 B CC,
VX 52 B CH01 / VX 53 B CH01
VX 50 B 2040 Upstream amplifier module,
204 MHz
XE 53 B 0650 65 MHz filter board for upstream
amplifier module
part of VX 50 B 0650
XE 53 B 2040 204 MHz filter board for up-
stream amplifier module
for upgrading a VX 50 B 0650
to 204 MHz
4.3.3 Upstream level and slope alignment
Upstream high pass filter
In order to suppress low-frequency disturbances in the upstream transmission spec-
trum, a 12 MHz high-pass filter can be activated. If payload carriers populate the
spectral range 5...12 MHz, the filter should stay disabled.
BT app: UPSTREAM > US [1/2] 12 MHz HP > [on] / [off]
default: [off]
Handset: Upstream [1/2] > US HighPass[1/2] >
Ingress control switch (ICS)
BT app: UPSTREAM > US [1/2] ICS > 0 / -6 / -45 dB
default: 0 dB
Handset: Upstream > US ICS[1/2] >
Upstream input attenuator
BT App: UPSTREAM > US [1/2] Input Att. > 0 ... 30 dB
1.0 dB steps
Handset: Upstream > US InputAtt[1/2] >
Upstream slope
BT App: UPSTREAM > Slope > 0 ... 15 dB
0.5 dB steps
Handset: Upstream > US Slope >