Televes DigiSlot DVB-T User Manual

Refs. 554511

554611

EN

DVB-T Modulators

User´s Manual

www.televes.com

Index

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.1 Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.2 Blocks diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3 Technical specifi cations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2. Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.1 Indicators and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2 Installation precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.1 Button introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

EN

ENGLISH

3.2 Initial status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3.3 General setting for main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4. Encoders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1 Specifi cation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5. Web nms operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.1 Login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

5.2 Confi guration setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7. Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7.1 Ordering guideline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7.2 Application example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

7.3 Confi guration example for more than one unit in the same installation . . . . . . . . . . . . . . . . 16

DVB-T Modulator

4

1. Introduction

1.1 Product overview

The product is presented for two types of mounting: onto the wall (Ref. 554511),
and 19 inch cabinet mounting (Ref. 554611).

The modulator converts the HD A/V baseband signals into a DVB-T multiplex of
RF within the range 47~862 MHz.
It features 2 encoders and 1 additional RF input. The input signals of the
encoders can come from satellite receivers, CCTV cameras, Blu-ray players,
antennas, ... etc. Its output is a DVB-T TV multiplex which can be received with
the corresponding DTT STB.
The device can be used for monitoring, training courses and presentations,
schools, universities, hospitals, ..., in addition to being the best choice for public
premises which o er sporting events, VIP entertainment channels,.. and other.

1.2 Blocks diagram

IN IN

Encoder Encoder

1.3 Technical specifi cations

DVB-T modulator section

Standard

EN300744

FFT mode 2K, 8K

Bandwidth 6M, 7M, 8M

Constellation QPSK, 16QAM, 64QAM

Guard Interval 1/4, 1/8, 1/16, 1/32

FEC 1/2, 2/3, 3/4, 5/6, 7/8

MER ≥42dB

RF frequency 47~862MHz, 1KHz step

RF output level

-30~ -10dBm (81~97 dBμV),

0.1dB step

Interface

Front panel

Remote
management

buttons, LCD display

Web NMS

Modulator

RF IN

Combiner

RF OUT

MUX

Language

English

General

Mains

Dimensions

AC 100V~240V

360 x 280 x 50 mm (554511)
480 x 300 x 44 mm 1U rack 19” ( 554611)

Weight 2.6 kgs

Operating
temperature

0~45 ºC

Con gurations

LCN con g

NIT Table con g

Ye s

Ye s

Settings

Network Name

Ye s

Network ID Yes

Transport Stream ID (TSID) Yes

Original Network ID (ONID) Yes

Hierarchy Information Yes

2. Product Description

2.1 Indicators and controls

5

554511

2 3

12 131514

EN

1

4

5

9

6

8

7

554611

1 LCD display

2 NMS port

3 IP port

4 ON LED and alarm LED

5 Locking LED

10

10

2

3

11

6 Up/Down and Left/Right buttons

7 ENTER button

8 MENU button

9 Locking button

10 Encoder 1 slot (open)

11

4 5 6 7 8 91

12 13 14 15

11 Encoder 2 slot (with tap)

12 RF input

13 RF output

14 ON/OFF switch

15 Mains socket

DVB-T Modulator

6

2.2 Installation precautions

This section to explain the cautions the users must have to avoid any injures
when using or installing the product. For this reason, please read all details here
before installing or using the product.

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

with the power on.

After use, securely stow away all loose cables, external antenna, and others.

Power precautions

When you connect the power source, make sure it will not cause any overload.
Avoid operating on a wet  oor in the open. Make sure the extension cable is

in good condition.

Make sure the power switch is o before you start to install the device.

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 be a 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 both ends of grounding wire are electric

conductor and 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 2,5mm2.

3.2 Initial Status

Switch On, then below status will be displayed, few seconds’ initialization then
open startup picture

Start up ...

Start OK ...

DVB-T XXX.00MHz
X.XXMbps Y.YYMbps

DVB-T: indicate the modulation standard of this device
XXX.XX MHz: indicate the output frequency, and the frequency range is

47~862MHz
X.XX Mbps: indicate the encoding bit rate in slot 1
Y.YY Mbps: indicate the encoding bit rate in slot 2

3.3 General setting for Main Menu

By pressing “Lock” key to enter the main menu, the LCD will display the
following pages:

1 Alarm Status
2 Encode Setting

3 Modulate Setting
4 IP Output Setting

5 Network Setting
6 Saving Config

7 Loading Config
8 Version

3. Operation

3.1 Button introduction

DVB-T XXX.00MHz
X.XXMbps 0.0M

To move left To move right

Con rm setting

Setting value up
and moving up

Setting value down
and moving down

Back step

LCD display window.
Display window for setting menu
Status display when power On.

Lock button

User pressing UP or DOWN buttons to speci ed menu item, and then pressing
ENTER to enter the submenus as below:

1) Alarm status --- the alarm indicator will light on if there is no A/V signals
input.

2) Encoder setting --- choose this submenu, the LCD will show “input setting”,
press the ENTER key and control the UP or Down key to move the arrow.
User could  nd how to set the audio and video encoding bit rate.

3) Modulator setting

When the “modulator setting” submenu has been chosen, users can  nd below
di erent parameters for setting. And the LCD window would respectively show
like these.

3.1 Bandwidth

3.2 Constellation

3.3 Transmisson Mod

3.4 Guard Interval

- Bandwidth

There are three possible options provided for selecting bandwidth: 6M, 7M, and
8M. When the display shows them, user just need swift LEFT and RIGHT key to
choose and repressing “ENTER” for con rm.

- Constellation

Three di erent constellations: QPSK, 16QAM, and 64QAM will be show on the
LCD window when Constellation been entered.

- QPSK: Quadrature Phase Shift Keying, Selecting this option indicates the

device works as DVB-S modulation mode

- 16QAM: Quadrature Amplitude Modulation is 16

- 64QAM: Quadrature Amplitude Modulation is 64

3.5 Code Rate

3.6 RF Frequency

3.7 RF Outlevel