Questtel DVB C User manual

B-QAM-SDI-IP-2CH-LL
User Manual

Directory
CHAPTER 1 INTRODUCTION ...................................................................................................................1
1.1 PRODUCT OVERVIEW............................................................................................................................... 1
1.2 KEY FEATURES ........................................................................................................................................1
1.3 SPECIFICATIONS.......................................................................................................................................2
1.4 PRINCIPLE CHART.................................................................................................................................... 3
1.5APPEARANCE AND DESCRIPTION .............................................................................................................3
CHAPTER 2 INSTALLATION GUIDE ...........................................................................................................5
2.1 GENERAL PRECAUTIONS.......................................................................................................................... 5
2.2 POWER PRECAUTIONS.............................................................................................................................. 5
2.3 DEVICE‟S INSTALLATION FLOW CHART ILLUSTRATED AS FOLLOWING..................................................... 5
2.4 ENVIRONMENT REQUIREMENT ................................................................................................................5
2.5 GROUNDING REQUIREMENT ....................................................................................................................6
CHAPTER 3 OPERATION..........................................................................................................................7
3.1 LCD MENUS............................................................................................................................................7
3.2 INITIAL STATUS........................................................................................................................................ 8
3.3 GENERAL SETTINGS FOR MAIN MENU..................................................................................................... 9
CHAPTER 4 WEB NMS OPERATION .......................................................................................................17
4.1 LOGIN .................................................................................................................................................... 17
4.2 OPERATION............................................................................................................................................ 18
CHAPTER 5 TROUBLESHOOTING...........................................................................................................29
CHAPTER 6 APPLICATION .....................................................................................................................30
CHAPTER 7 PACKING LIST .....................................................................................................................32
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
www.questtel.com [email protected]

Chapter 1 Introduction
1.1 Product Overview
B-QAM-SDI-IP-2CH-LL series products are QuestTel‟s new breakthrough all-in-
one devices which integrate encoding (MPEG-2 HD/SD, MPEG-4/AVC H.264 HD/
SD) and modulating to convert V/A signals into DVB-C RF output. It has equipped
with 2 SDI channels input and 1 ASI input and output with 2 ASI ports and 1 UDP IP
port.
Now, the latency problem has been greatly reduced to achieve an extremely low value
from the encoding progress to the decoding terminals.
It adopts inner drawer-type structural design which greatly facilitates the change of
encoding modules (HDMI/SDI /…) as needed.
The signals source could be from satellite receivers, closed-circuit television
cameras, Blue-ray players, and antenna etc. Its output signals are to be received by
DVB-C TVs or STBs and etc.
1.2 Key Features
MPEG2 & MPEG4AVC/H.264 HD/SD encoding
Up to 1920*1080@50P/60Psupported (MPEG4AVC/H.264 HD)
Up to 1920*1080@50I/60I supported (MPEG2 HD)
2* SDI input; 1*ASI input for re-mux; 1*RF input for mix
2* DVB-C RF out (2 carriers combined output)
Support 2* SPTS output
Extremely low latency reachable
LCN support (Logical Channel Number)
Excellent modulation quality MER≥42dB
RF Frequency range 30Mhz~960Mhz
LCD display, Remote control and firmware
Web NMS management; Updates via web
Lowest cost per channel
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
www.questtel.com [email protected]

1.3 Specifications
Encoding Section
Video
Encoding
MPEG2; MPEG4 AVC/H.264
Input
SDI*2
Resolution
1920*1080_60P, 1920*1080_50P, (-for MPEG4 AVC/H.264)
1920*1080_60i, 1920*1080_50i,
1280*720_60p, 1280*720_50P
720*480_60i, 720*576_50i
Low Latency Mode
Normal, Mode 1, Mode 2
Audio
encoding
MPEG1 Layer II, MPEG2-AAC, MPEG4-AAC
Sample rate
48KHz
Bit rate
64kbps, 96kbps,128kbps, 192kbps, 256kbps, 320kbps
DVB-C Modulator Section
Standard
J.83A , J.83B, J.83C
MER
≥42dB
RF frequency
30~960MHz, 1KHz step
Symbol rate
5.000~9.000Msps adjustable
RF output level
-30~ -10dbm (81~97 dbµV), 0.1db step
J.83A
J.83B
J.83C
Constellation
16/32/64/128/25
6QAM
64QAM/ 256QAM
64QAM/ 256QAM
bandwidth
8M
6M
6M
System
Local interface
LCD + control buttons
Remote management
Web NMS
output
2*ASI out (BNC type);
2*SPTS IP out over UDP (RJ45, 100M)
NMS interface
RJ45, 100M
Language
English
General
Power supply
AC 100V~240V
Consumption
25 W
Dimensions
482*300*44mm
Weight
3.5 kgs
Operation temperature
0~45℃
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
www.questtel.com [email protected]

1.4 Principle Chart
1.5 Appearance and Description
Front Panel Illustration
①LCD window: LCD display
②NMS port for web management
③DATA port for IP signal output
④Indicators
⑤Navigation buttons
⑥Enter button: for confirm
⑦Menu button: for back step
⑧Lock button: press to lock set
Rear Panel Illustration
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
www.questtel.com [email protected]

①SDI input port 1
②SDI input port 2
③RF in port (for RF mix)
④RF out port
⑤ASI input port
⑥ASI output ports
⑦Power Switch
⑧Power supply slot
⑨Grounding
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
www.questtel.com [email protected]

Chapter 2 Installation Guide
This section is to explain the cautions the users must know in some case that possible
injure may bring to users when it‟s used or installed. For this reason, please read all
details here and make in mind before installing or using the product.
2.1 General Precautions
Must be operated and maintained free of dust or dirty.
The cover should be securely fastened, do not open the cover of the products when the
power is on.
After use, securely stow away all loose cables, external antenna, and others.
2.2 Power precautions
When you connect the power source, make sure if it may cause overload.
Avoid operating on a wet floor in the open. Make sure the extension cable is in good
condition
Make sure the power switch is off before you start to install the device
2.3 Device’s Installation Flow Chart Illustrated as following
Connecting
Grouding
Wire and
Power
Cord
Acquisition
Check Installing Device Setting Parameter Running Device
Connecting
Signal
cable
2.4 Environment Requirement
Item
Requirement
Machine Hall
When user installs machine frame array in one machine hall,
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
www.questtel.com [email protected]

Space
the distance between 2 rows of machine frames should be
1.2~1.5m and the distance against wall should be no less than
0.8m.
Machine Hall Floor
Electric Isolation, Dust Free
Volume resistivity of ground anti-static material:
1X107~1X1010，Grounding current limiting resistance: 1M
(Floor bearing should be greater than 450Kg/㎡)
Environment
Temperature
5~40℃(sustainable )，0~45℃(short time)，
installing air-conditioning is recommended
Relative Humidity
20%~80% sustainable 10%~90% short time
Pressure
86~105KPa
Door & Window
Installing rubber strip for sealing door-gaps and dual level
glasses for window
Wall
It can be covered with wallpaper, or brightness less paint.
Fire Protection
Fire alarm system and extinguisher
Power
Requiring device power, air-conditioning power and lighting
power are independent to each other. Device power requires
AC 110V±10%, 50/60Hz or AC 220V±10%, 50/60Hz. Please
carefully check before running.
2.5 Grounding Requirement
All function modules‟ good grounding is the basis of reliability and stability of devices.
Also, they are the most important guarantee of lightning arresting and interference
rejection. Therefore, the system must follow this rule.
Grounding conductor must adopt copper conductor in order to reduce high frequency
impedance, and the grounding wire must be as thick and short as possible.
Users should make sure the 2 ends of grounding wire well electric conducted and be
antirust.
It is prohibited to use any other device as part of grounding electric circuit
The area of the conduction between grounding wire and device‟s frame should be no
less than 25 mm2.
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
www.questtel.com [email protected]

Chapter 3 Operation
3.1 LCD Menus
An overview of the LCD menus:
Switch On
Initializing
General Working Status
1 Alarm Status
2 Encode Setting
2.1 Input 1
2.3 ASI
2.2 Input 2
Video Format
Video Bitrate
Audio Format
Audio Bitrate
Video Format
Video Bitrate
Audio Format
Audio Bitrate
2.3.1 Parse Program
2.3.2 Select Program A
2.3.3 Select Program B
2.3.4 Select Program C
2.3.5 Select Program D
Low Latency
Low Latency
3 Modulate Setting
3.1 Output A
3.5 ASI Output
3.2 Output B
3.3 Output C
3.4 Output D
3.1.1 Standard
3.1.2 Constellation
3.1.3 Symbol Rate
3.1.4 RF Frequency
3.1.5 RF Out Level
3.1.6 RF On
3.2.1-3.2.6
(Same content
with 3.1.1-3.1.6)
3.3.1-3.3.6
3.4.1-3.4.6
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
www.questtel.com [email protected]

4 IP Out Setting
4.1 IP Output A
4.2 IP Output B
4.3 IP Output C
4.4 IP Output D
4.1.1 IP Out Enable
4.1.2 Service IP
4.1.3 Output IP
4.1.4 Subnet Mask
4.1.5 Gateway
4.1.6 Port
4.2.1-4.2.7
(Same content
with 4.1.1-4.1.7)
4.3.1-4.3.7
4.4.1-4.4.7
4.1.7 Filter Null Pkt
3.2 Initial Status
Switch on the device and after a few seconds‟ initialization, it presents start-up pictures as
below:
Start up…
Start OK…
Cable A XXX.00MHz
X.XXMbps X.XXMbps
SDI Encoder Modulator User Manual
B-QAM-SDI-IP-2CH-LL
www.questtel.com [email protected]