Maxcom MX3257HD Installation instructions

MAXCOM PRODUCT SPECIFICATIONS

Description

The rack-mountable MX3257HD fiber optic video

multiplexer is ideal for transmitting 1 channel of video, 2

channels of audio and 1 high speed serial data channel

on one fiber optic cable.

The high speed serial data channel may be either DVB-

ASI or SMPTE-310M. The MX3257HD’s High Speed

Serial data channel employs automatic cable

equalization for error free operation over long coaxial

cable runs.

The MX3257HD operates by digitizing and multiplexing

video, audio and high speed data onto a high-speed

serial data stream, which is then transmitted via fiber

optics.

Because the system employs digital transmission

techniques, performance characteristics are consistent

and maintained over the specified distance with no

degradation of signal.

The MX3257HD is designed to work with standard

singlemode or multimode fiber optic cable and can be

wall mounted or rack mounted. Both transmitter and

receiver come equipped with internal power supplies.

Optical Link LEDs facilitate the continuous monitoring of

the fiber optic system.

FIBER OPTIC VIDEO / AUDIO / ASI LINK

Model MX3257HD

Model Selection Guide

Model

Description

MX3257HDT-1S-1V-2A-ASI-SCA-40

Fiber Optic Mux TX, 1 Video, 2 Audio, 1 DVB-ASI, Singlemode, SC/APC Connector, 40 Km

MX3257HDR-1S-1V-2A-ASI-SCA-40

Fiber Optic Mux RX, 1 Video, 2 Audio, 1 DVB-ASI, Singlemode, SC/APC Connector, 40 Km

MX3257HDT-1S-1V-2A-S310-SCA-40

Fiber Optic Mux TX, 1 Video, 2 Audio, 1 SMPTE-310, Singlemode, SC/APC Connector, 40 Km

MX3257HDR-1S-1V-2A-S310-SCA-40

Fiber Optic Mux RX, 1 Video, 2 Audio, 1 SMPTE-310, Singlemode, SC/APC Connector, 40 Km

MX3257HDT-1S-1V-2A-ASI-SCA-80

Fiber Optic Mux TX, 1 Video, 2 Audio, 1 DVB-ASI, Singlemode, SC/APC Connector, 80 Km

MX3257HDR-1S-1V-2A-ASI-SCA-80

Fiber Optic Mux RX, 1 Video, 2 Audio, 1 DVB-ASI, Singlemode, SC/APC Connector, 80 Km

MX3257HDT-1S-1V-2A-S310-SCA-80

Fiber Optic Mux TX, 1 Video, 2 Audio, 1 SMPTE-310, Singlemode, SC/APC Connector, 80 Km

MX3257HDR-1S-1V-2A-S310-SCA-80

Fiber Optic Mux RX, 1 Video, 2 Audio, 1 SMPTE-310, Singlemode, SC/APC Connector, 80 Km

Other Connectors and Distances Available Upon Request

Features

High Quality 10 Bit Digital Sampling of Video Input

High Speed Data Channel for DVB-ASI or SMPTE-310M

High Speed Data Channel employs Automatic Cable Equalization

Digital Transmission of Stereo Audio

Baseband Video or composite Video/Audio Transmission over video channel

External Audio Compatible with Balanced or Unbalanced Audio Formats

High Quality Uncompressed Digital Transmission

67 dB SNR

OPTICS

90 - 240 VAC

47 - 63 Hz

Video Audio SC

+ I + I

Audio

Rear Panel

Standards

NTSC, PAL, SECAM

Channels

(1) Video, (2) Audio & (1) High Speed Data

Video Bandwidth

SNR / dP / dG

10 Hz to 6.5MHz

67 dB, < 1 deg / < 1%

Video I/O

BNC, 1V p-p, 75 Ohm

High Speed Data

BNC, 1V p-p, 75 Ohm

DVB-ASI @ 270Mbps, SMPTE-310M @ 19.4 Mbps

Stereo Audio I/O

Terminal Block, 1Vp-p, 10 KOhm

Physical Dimensions

17” x 1.75” x 10”

Environment

Temperature: Operating: 0C to 50C

Storage: -20C to 70C

Humidity:

Operating: 10% to 90% RH

Storage: 5% to 90% RH

Input Power Requirements:

Voltage: 90 – 240 VAC, 47- 63 Hz

2248 Meridian Ste H

Minden, Nv. 89423

1-877-330-5333

Package Includes

Transmitter or Receiver (Must be purchased separately

Power Cord

Rack-mountable hardware

Easy to follow owner's manual

Warranty

5 year limited warranty

Video I/O: BNC, 75 Ohm

Stereo Audio Terminal Block, 10K Ohm

AC Power Input

Optical I/O

SC/PC or SC/APC

High Speed Data Channel: BNC, 75

Ohm

- DVB-ASI (270Mbps Transport)

- SMPTE-310M 19.4Mbps

User’s Manual

MAX3257HD Series

Model: MAX3257/4A/3HD

1 VIDEO / 4 AUDIO / 3 DVB-ASI CWDM multiplexer

Video / Audio / ASI Fiber Optic Multiplexing System

Installation and User Guide

3257 HD Series User’s Manual No: UM-3257-D2

Page 2 www.maxcomcorp.com

TABLE OF CONTENTS

1 SAFETY INSTRUCTIONS

2 INTRODUCTION

2.1 System Description

2.2 Front Panel Indicator Description

2.3 Rear Panel Indicator Description

3 INSTALLATION

3.1 General Installation

3.2 Power Connection

3.3 Fiber Optic Cables Connection

3.4 Video Connections

3.5 Audio Connections

3.6 Balanced Audio Connections

3.7 Unbalanced Audio Connections

3.8 External Audio Sub-Carrier Connections

3.9 DVB-ASI Connections

4 OPERATION

3257 HD Series User’s Manual No: UM-3257-D2

Page 3 www.maxcomcorp.com

1 SAFETY INSTRUCTIONS

THE 3257 SYSTEM MAY CONTAIN A CLASS IIIb LASER. PLEASE OBSERVE THE

FOLLOWING SAFETY PRECAUTIONS THAT APPLY TO LASER EQUIPPED UNITS.

WARNING: Do not disconnect the fiber optic external connector with the power turned

on. Exposure to Class IIIb Laser radiation is possible when the external fiber connector

is disconnected while the unit is still powered up. Ensure the rubber boot is in place

whenever the fiber optic cable is disconnected.

CAUTION: Attempting to make adjustments or performing operations other than those

specified may result in hazardous radiation exposure. Exposure for only seconds can

cause permanent eye damage as well as other injuries.

3257 HD Series User’s Manual No: UM-3257-D2

Page 4 www.maxcomcorp.com

2 INTRODUCTION

2.1 System Description

The 3257 HD Series is a Video / Audio / DVB-ASI fiber optic multiplexer. The 3257 Series

video modules can be configured to transmit simplex (one direction) or duplex (two direction) video &

audio, and 1 to 4 DVB-ASI signals using CWDM technology. Depending on the distance requirements

between sites, the 3257s may be equipped to operate over multimode or single mode fiber. Distances

between the transmitter and receiver can be up to 3 Km for multimode operation and up to 120 Km for

single mode operation

SYSTEM I/O CONFIGURATION

Each of the four ports can be configured for one of the following options:

Simplex Video and Simplex Audio –2 Channels

Simplex Video and Simplex Audio –4 Channels

Simplex Video and Simplex Audio –6 Channels

Simplex Video and Simplex Audio –8 Channels

DVB-ASI –1 to 4 channels

VIDEO / AUDIO TECHNOLOGY:

The 3257 system uses uncompressed 10 bit analog to digital modulation techniques which

provides excellent video quality. The audio circuitry also digitizes the audio signals prior

to transmission. The 2 channels of audio may be used for stereo audio or for two separate

channels of audio.

DVB-ASI Transmission Technology

The ASI option on the 3257HD series will accept any PCM 1Vp-p, 75 ohm

signal up to 600Mbps. The digital electrical signal connected to the BNC connector is

converted to an optical signal. The ASI circuit’s receiver takes the incoming optical signal and

converts it back to electrical I/O: 75 Ohm up to 1Vp-p. The interface will NOT accept bipolar

signals; such as T1, T3, E1 or E3.

3257 HD Series User’s Manual No: UM-3257-D2

Page 5 www.maxcomcorp.com

Power Link

Status

MAXCOM

2.2 Front Panel Indicators

The following diagram depicts the front panel indicators:

Link Indicator (light off):

TX –Problem with Transmitter

RX –Problem with Optical link

Power Indicator

Link Indicator (light on):

TX –Transmitter status OK

RX –Optical link OK

3257 HD Series User’s Manual No: UM-3257-D2

Page 6 www.maxcomcorp.com

2.3 Rear Panel Indicators

The following diagram depicts the 3257T and 3257R rear panel configuration

with optional audio channels installed:

NOTE: Model Depicted is configured with 1 Video 8 Audio and 4 ASI Channels

3257 HD Series User’s Manual No: UM-3257-D2

Page 7 www.maxcomcorp.com

90 - 240 VAC

47 - 63 Hz

FUSE

3 INSTALLATION

3.1 General Installation

The units may be shelf mounted, 19” EIA rack mounted or table mounted. In

order to mount the units in an 19” rack, the Rack Mount Brackets must be first

installed by mounting the brackets to the mounting holes in the sides of the

3257.

Make sure that there is enough space to pull and connect both the electrical

data and optical cables without stressing them beyond the manufacturer’s

limitation strain specifications or exceeding the cable’s minimum bend radius.

3.2 Power Connection

The 3257 Series is compatible with 90 - 240 VAC power, 47Hz – 63Hz.

The Power Entry Module incorporates an IEC 3 prong power input connector, a switch

and a fuse holder, shown below:

IEC 3 Prong Power Input

Power Entry Module

Fuse Holder

On / Off

Switch

3257 HD Series User’s Manual No: UM-3257-D2

Page 8 www.maxcomcorp.com

3.3 Fiber optic cable connection

Verify that the fiber cable meets the 3257 Series’ transmission requirements.

Relevant cable specifications include loss, distance (dispersion) and return

loss.

Optical Specifications: For MX3257/2HD

Service

wavelength

Tx Output

Power

Rx Receiver

sensitivity

Loss in Fiber

Video +Audio

1310nm

-5dbm

-30dbm

0.35dbm/Km

HD Ch 1

1510nm

-3dbm

-24dbm

0.27dbm/km

HD Ch 2

1550nm

-3bbm

-24dbm

0.25dbm/km

Optical Specifications: For MX3257/3HD

Service

wavelength

Tx Output

Power

Rx Receiver

sensitivity

Loss in Fiber

Video +Audio

1510nm

-3dbm

-24dbm

0.27dbm/Km

HD Ch 1

1530nm

-3dbm

-24dbm

0.26dbm/km

HD Ch 2

1550nm

-3bbm

-24dbm

0.25dbm/km

HD Ch 3

1570nm

-3dbm

-24dbm

0.26dbm/Km

]

Table of contents

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