background image

VA

elektronik

Sams elektronik d.o.o. • [email protected] • www.sams.rs

10

Distribution amplifiers

I

49

ANALOG VIDEO DISTRIBUTION AMPLIFIERS

• Sams elektr

onik d.o

.o

. • 48 Zivka Da

vido

vica st. • 11050 B

elgr

ade • S

erbia •

• +381 11 3806 253; +381 11 2402 212 • [email protected] • www

.sams.rs •

The VA-14eql is 1RU device with modules. It will provides hum removal and equalization for long cable runs of up to 

300m. The VA-36eql features 30MHz bandwidth, differential input and variable equalization for up to 300m (1000ft) 

of Belden 8281 coaxial cable.

TECHNICAL SPECIFICATIONS

GENERAL INFORMATION

- Code: ....................................................................007.165

- Weight: ......................................................................2 Kg

- Type: .........................................................1RU rack frame

- Dimensions: ........................................ 1RU x 19” x 100mm

- Delivery includes: ............. device, power corde, user manual

INPUT

-Video Input Level: ........................................ 1V p-p nominal

-Input Impedance: ..................... 75Ω loop-trough, differential

-Coupling: ....................................... AC/DC jumper selectable

OUTPUT

-Number: ...................................................................4, BNC

-Level: .......................................................... 1V p-p nominal

-Impedance: ..................................................................75Ω

PERFORMANCE

- Gain: ............................................................ -3dB do +3dB

- Gain stability: ...................................................... <±0.1dB

- Frequency response: ...................... ±0.1dB (50Hz do 8MHz)

- Equalization range: ............................ 0-300m, Belden 8281

- Clamping accuracy: .............................................. <±30mV

BLOCK DIAGRAM

ORDERING INFORMATION

Code 

Name 

Description

007.165  VA-14eql 

Analog video DA 1x4

Specifications and designs are subject to change without notice

VA-14eql

Analog video distribution amplifier with EQ, 

1x4

-  Differential input

-  30 MHz bandwidth

-  Cable equalization for up to 300m at 8 MHz

-  Gain range ±3dB

-  4 outputs

front side

rear side

POWER

- Voltage: ................................................. ~230V AC ± 10%

- Power: .......................................................................30W

- Frequency: ................................................................ 50Hz

- Overload protection: .............. front Mounted Circuit Breaker

TEMPERATURE

- Performance: .......................................................... 5-40°C

- Operating: .............................................................. 0-50°C

IN

OUT

GAIN

EQ

LOOP

LED

Signal indication

LED

Power

DIFFERENTIAL

1

2

3

4

Содержание VA-14eql

Страница 1: ...ion 1 Code 007 165 007 166 007 167 007 162 007 163 007 164 ENGLISH VA14eql 24eql 34eql VA16eql 26eql 36eql Sams elektronik d o o 48 Zivka Davidovica st 11050 Belgrade Serbia Tel Fax 381 11 3806 253 381 11 2402 212 sams sams rs www sams rs USER MANUAL FOR USE AND MAINTENANCE Read the instructions before using the device Keep this manual for periodic usage ...

Страница 2: ...ufacturer servicer has not completed repair or replacement within a reasonable time or if the manufacturer servicer did not perform repair or replacement without significant inconvenience to the consumer 5 The consumer may not terminate the contract if the lack of conformity of the product is negligible 6 The product will function properly when used in accordance with the user manual 7 Period of s...

Страница 3: ...of high voltage In poor conditions the user may be exposed to shock The symbol exclamation mark in a triangle is to alert the user to comply by the terms of use in user s manual which is supplied with the device SAFETY WARNINGS ELECTRICAL SHOCK HAZARD DO N OT O PEN CAUTION RIZIK OD S TRUJNOG UDARA NE O TVARATI DOK JE P OD N APONOM UPOZORENJE CLASS I DEVICE Grounding is connected to the chassis of ...

Страница 4: ... device is equipped with a protective fuse in the power outlet Do not bypass fuse 12 Do not replace the fuse Replacement can be made by a person authorized by the manufacturer 13 Do not bend the power cord so that it can be damaged 14 Connect connectors as in the enclosed instructions Deviations from the allowed values predicted for the inputs and outputs of the device can cause severe damage and ...

Страница 5: ...www sams rs elektronik 5 Distribution amplifiers UNPACKING AND INSTALLATION 6 MAINTENANCE 6 REMOVAL AND STORAGE 6 DESCRIPTION 7 INSTALLATION 13 ADJUSTMENT 14 REMARKS 15 ACCESS TO ADJUST TRIMMER 15 NOTES 16 Page Description TABLE OF CONTENTS ...

Страница 6: ...5 The device must be stored in a room without moisture The system maintains only person authorized by Sams elektronik doo Any voluntarily opening device upgrading or servicing is strictly prohibited and is subject to warranty void and the possibility of injury Places for fastening PROCEDURES FOR SAFE USE OF THE DEVICE 1 Remove the protective wrap from the chassis For devices that are AC 230V 50Hz ...

Страница 7: ...l INPUT Video Input Level 1V p p nominal Input Impedance 75Ω loop trough differential Coupling AC DC jumper selectable OUTPUT Number 6 BNC Level 1V p p nominal Impedance 75Ω PERFORMANCE Gain 3dB do 3dB Gain stability 0 1dB Frequency response 0 1dB 50Hz do 8MHz Equalization range 0 300m Belden 8281 Clamping accuracy 30mV BLOCK DIAGRAM ORDERING INFORMATION Code Name Description 007 162 VA 16eql Anal...

Страница 8: ...ideo Input Level 1V p p nominal Input Impedance 75Ω loop trough differential Coupling AC DC jumper selectable OUTPUT Number 6 BNC Level 1V p p nominal Impedance 75Ω PERFORMANCE Gain 3dB do 3dB Gain stability 0 1dB Frequency response 0 1dB 50Hz do 8MHz Equalization range 0 300m Belden 8281 Clamping accuracy 30mV BLOCK DIAGRAM ORDERING INFORMATION Code Name Description 007 163 VA 26eql Analog video ...

Страница 9: ...ideo Input Level 1V p p nominal Input Impedance 75Ω loop trough differential Coupling AC DC jumper selectable OUTPUT Number 6 BNC Level 1V p p nominal Impedance 75Ω PERFORMANCE Gain 3dB do 3dB Gain stability 0 1dB Frequency response 0 1dB 50Hz do 8MHz Equalization range 0 300m Belden 8281 Clamping accuracy 30mV BLOCK DIAGRAM ORDERING INFORMATION Code Name Description 007 164 VA 36eql Analog video ...

Страница 10: ...PUT Video Input Level 1V p p nominal Input Impedance 75Ω loop trough differential Coupling AC DC jumper selectable OUTPUT Number 4 BNC Level 1V p p nominal Impedance 75Ω PERFORMANCE Gain 3dB do 3dB Gain stability 0 1dB Frequency response 0 1dB 50Hz do 8MHz Equalization range 0 300m Belden 8281 Clamping accuracy 30mV BLOCK DIAGRAM ORDERING INFORMATION Code Name Description 007 165 VA 14eql Analog v...

Страница 11: ... Video Input Level 1V p p nominal Input Impedance 75Ω loop trough differential Coupling AC DC jumper selectable OUTPUT Number 4 BNC Level 1V p p nominal Impedance 75Ω PERFORMANCE Gain 3dB do 3dB Gain stability 0 1dB Frequency response 0 1dB 50Hz do 8MHz Equalization range 0 300m Belden 8281 Clamping accuracy 30mV BLOCK DIAGRAM ORDERING INFORMATION Code Name Description 007 166 VA 24eql Analog vide...

Страница 12: ... Video Input Level 1V p p nominal Input Impedance 75Ω loop trough differential Coupling AC DC jumper selectable OUTPUT Number 4 BNC Level 1V p p nominal Impedance 75Ω PERFORMANCE Gain 3dB do 3dB Gain stability 0 1dB Frequency response 0 1dB 50Hz do 8MHz Equalization range 0 300m Belden 8281 Clamping accuracy 30mV BLOCK DIAGRAM ORDERING INFORMATION Code Name Description 007 167 VA 34eql Analog vide...

Страница 13: ...UTION RIZIK OD STRUJNOG UDARA NE OTVARATI DOK JE POD NAPONOM UPOZORENJE USE ONLY WITH A 250V FUSE www sams rs Made in Serbia VA 4eql CODE 007 165 SN FUSE 500mA AC 230V 50Hz POWER VIDEO OUTPUT VIDEO INPUT VIDEO LOOP 1 2 3 4 75 Ω ON OFF USE ONLY WITH A 250V FUSE www sams rs Made in Serbia VA 24eql CODE 007 166 SN RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION FUSE 500mA AC 230V 50Hz POWER VIDEO OUTPUT 1...

Страница 14: ...art test 75 Color bar Using a measuring instrument note whether there is a deviation Slowly turn the GAIN potentiometer to adjust the signal level at 1V p p 2 EQ is the process of adjusting the balance between the levels of different frequencies in the video signal Due to the length of the cable it will weaken the level of higher frequencies Start Multiburst test Using a measuring instrument note ...

Страница 15: ...ng in the panel It can be adjusted by turning the trimmer ACCESS TO ADJUST TRIMMER REMARKS Loop must be closed with 75Ω terminator if not used Loop is used to pass incoming signal back into the system without adjustment All corrections levels and EQ of signal relating only on outputs Loop is not used Loop is used 75Ω terminator ...

Страница 16: ...VA elektronik Sams elektronik d o o sams sams rs www sams rs 16 Distribution amplifiers NOTES ...

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