Core Tec Communications, LLC VCX-7401 Manuale utente

INSTALLATION AND OPERATING INSTRUCTIONS

Revision Date: June 8, 2012

VCX-7401 Dual H.264/MPEG-4/MPEG-2/JPEG Encoder with

H.264/MPEG-4 Decoder

Core Tec Communications, LLC

2950 Lake Emma Rd

Suite 1030

Lake Mary, FL 32746 USA

Phone (407) 331-0547

Fax (407) 331 0656

www.coretec.com

Technical Support:

U.S. 877-331-0547

(Toll Free)

Elsewhere: 407-331-0547

Table of Contents

Table of Contents................................................................................................................ 2

Introduction......................................................................................................................... 4

Familiarization with the VCX-7401 ................................................................................... 5

Com Port Data Interface ................................................................................................. 6

Video Input Interface ...................................................................................................... 6

Ethernet Interface............................................................................................................ 6

Power .............................................................................................................................. 7

Mounting the Device....................................................................................................... 7

Updating Firmware with TFTP....................................................................................... 7

Operation............................................................................................................................. 7

Limitations...................................................................................................................... 7

Decoding on 3rd Party Decoders ..................................................................................... 8

Using RTSP..................................................................................................................... 8

IP Configuration.................................................................................................................. 8

Overview......................................................................................................................... 8

Initial IPAddressing........................................................................................................ 8

VcxNetConfig............................................................................................................. 9

Connecting to the Unit...................................................................................................11

1. Telnet ...............................................................................................................11

2. Terminal Program............................................................................................11

3. Web Interface.................................................................................................. 12

4. SNMP ............................................................................................................. 25

Program Commands.......................................................................................................... 25

Command Legend:........................................................................................................ 26

Network Settings........................................................................................................... 26

COM Port Settings........................................................................................................ 28

OSD COMMANDS (On Screen Display).................................................................... 29

Video Settings & Commands........................................................................................ 30

SAP Settings ................................................................................................................. 31

SNMP Settings.............................................................................................................. 32

Miscellaneous Settings & Commands .......................................................................... 33

Specifications.................................................................................................................... 34

PHYSICALAND ENVIRONMENTAL ...................................................................... 34

POWER REQUIREMENTS......................................................................................... 34

CONNECTORS............................................................................................................ 34

ELECTRICAL.............................................................................................................. 35

Models............................................................................................................................... 36

BASE MODELS........................................................................................................... 37

Appendex A - Pinouts ....................................................................................................... 37

Appendex B –VideoLan Client........................................................................................ 39

Introduction

The model VCX-7401 is the stand-alone H.264/MPEG4/MPEG-2/JPEG version

of the VCX family and is housed in a 8.5-inch 1U rack mount case with a control

port and a universal AC power supply.

The VCX Digital Video transport system consists of two video encoders, allowing

either H.264, MPEG4, MPEG2 or JPEG as well as a built in decoder. This makes

up the encoder(selectable)/decoder pair providing the capability for one-way end-

end transmission of the compressed digital video stream in the H.264 or MPEG-4

format. The encoding-decoding process is applied to an NTSC (or PAL) video

input, selected in software.

Modification of video format and resolution, data sub-channel characteristics, and

basic IP parameters is achieved through one of the following means:

a) Terminal Program

b) Telnet through the Ethernet connection

c) Web Interface Applet

d) SNMP

NOTE: The VCX7401 is optimized for encoder or decoder operation. While

both the encoders and decoder can be used simultaneously, it is not recommended

as perfomance issues may occur. The exception is using the decoder to view it's

own H.264 or MPEG-4 stream, as this has minimal affect on performance.

Familiarization with the VCX-7401

The VCX-7401 Video Encoder accepts one BNC video in, one BNC Video Out

and one data sub-channel. The encoder has a programmable reset, which prompts

the re-initiation of the video stream. The decoder also has a programmable reset

command, tied to errors in the incoming video stream, as well as a reboot

command.

Birds Eye view of the VCX-7401

Front Panel

Front view of the VCX-7401

Back Panel

Rear view of the VCX-7401

Com Port Data Interface

There is one bi-directional data interface, RS-232 and RS-422 selectable, on the encoder,

which uses a RJ-45 connector. Refer to Table below, in Appendix A, for the correct pin

out. When using the RS-232 configuration pin 4 is ground. Com Port parameters are

configured through the system software.

Refer to AppendixAfor the correct pin out.

Video Input Interface

Connect a BNC-terminated coaxial cable from a composite video source (e.g., CCTV

camera) to the BNC connector labeled “VIDEO IN” (encoder). The composite video

input should be in NTSC or PAL format. The maximum length of cable that should be

interfaced to the encoder or decoder is 100 feet, although the specific installation

environment will dictate the actual permissible length.

Ethernet Interface

There is one Ethernet interface for encoder or decoder, which uses a standard RJ-45

connector. The standard method of terminating an ETHERNET cable reflects the

TIA568Astandard (Telecommunications IndustryAssociation standard).

Refer toAppendixA for the Straight Through and Crossover Ethernet Pin Out.

Power

Power is applied through a standard IEC type detachable line cord at the rear of the unit.

The unit automatically senses 110 VAC or 220 VAC supply and will operate with either.

The typical current is 1.2 amps from a 110VAC line and drops to 0.9 amps from a 230

VAC line source.

Mounting the Device

The VCX-7401 Encoder is a 8.5 inch wide device and provides holes for

mounting onto a chassi. The unit can be mounted in any orientation.

Updating Firmware with TFTP

TFTP is a simple and reliable way of updating the firmware on any device. All that is

required is to have access to a TFTP server which will be used as the host and contain the

update file, which is named vcx7401.tgz.

Via Telnet, enter the following command in order to update the firmware for the device

that is being used.

TFTP <Server IP Address>

Operation

The VCX-7401 is capable of encoding up to 2 simultaneous streams of video, or decode a

single video stream. When encoding, the video streams can be set to a multicast or

unicast IP.

Limitations

There are limitations imposed on the user when configuring the VCX-7401. They are as

follows.

Only the encoder or the decoder can be configured for operation at the same time.

When using both encoders H264 and MPEG4 cannot be used together at this time.

The CPU load should be observed (Telnet or Web) when configuring the bitrates.

The MPEG-2 stream is elementary.

Both the H.264 and MPEG-4 streams are RTP.

The JPEG images are uploaded using FTP to server.

Decoding on 3rd Party Decoders

There are several methods that allow decoding on non- Coretec decoders.

SAP –H.264, MPEG-4, and MPEG-2 are supported.

RTSP/RTP –H.264 and MPEG-4 are supported

UDP –MPEG-2 is supported.

The freely available no-cost media player called VideoLan Client or VLC is compatible

with the VCX-7401. It is available from www.videolan.org.

Using RTSP

RTSP (Real Time Streaming Protocol) is the protocol that many decoders use to access

the encoded stream. RTSP establishes a TCP connection with the VCX-7401 and

requests the data necessary to determine the type of stream and the connection IP/Port.

The information to create the RTSP request is provided by the user in the form of a URL.

The following is an example URL based on an example IP address used for the VCX-

7401.

rtsp://192.168.0.253/stream1 –Accesses the stream from the 1st encoder.

rtsp://192.168.0.253/stream1 –Accesses the stream from the 2nd encoder.

rtsp://192.168.0.253 –Accesses the stream from the 1st encoder.

RTSP only works with the encoder set to H.264 or MPEG-4.

IP Configuration

Overview

The commands contained in this section provide the means to configure critical

network, com ports, encoder, and decoder parameters. The user should consult

the factory if specific functions of interest do not appear to be supported.

Initial IPAddressing

To set the device parameters properly, encoder and decoder units must be given

appropriate IP addresses, compatible with the network on which they are to be

connected. There are two methods for setting the network address.

Set your computer’s IP address to the subnet of the default IP of the VCX-

7400. The default IP and subnet are 192.168.0.253 and 255.255.240.0.

You can set your computer to any other address on the subnet. After

putting your computer on the subnet, use telnet to set VCX-7401 network

parameters as decided by you or your network administrator.

a. IP

b. Subnet mask

c. Optional the gateway.

The software module VXNETCONFIG was developed to allow a

network administrator to set the IP and Subnet in the VCX-7401 without

having to modify the computer’s network address.

VcxNetConfig

Contact Core Tec to download VcxNetConfig. Select VcxNetConfig by double

clicking on the program. The following window will open:

VCXNETCONFIG Window

Description of Program Functions

(a) The first box on the left hand side of the window displays the current IP

address of the CORE TEC device being interrogated. Type the new IP address

into this space

(b) The second box is used to change the SUBNET address. Note that the

address displayed is always 255.255.255.0. Type the new SUBNET address into

this space.

NOTE: DHCPis not currently enabled on the VCX-7401. Selecting DHCP

will have no affect.

(d) The Configure button is to execute the requested changes to the IP and

SUBNET information. Note that future queries of the SUBNET will indicate

255.255.255.0. Therefore, the correct SUBNET address should always be entered

prior to using the Configure button.

(e) The box on the right hand of the window displays all VCX-7401 devices

(encoders and decoders) on the network.

(f) To make a change to the equipment addressing perform the following

steps:

(g) Select the Core Tec device address from the list in the box on the right side

of the window.

(h) Move the cursor to the IP box and select the first octet by highlighting the

octet. Enter the new IP data for the selected octet. As the 3 digits are entered, the

software will automatically highlight the next octet for change. Complete

entering the IP address and then switch to the SUBNET data.

(i) Move the cursor to the SUBNET box and select the first octet by

highlighting the octet. Enter the new SUBNET data for the selected octet. As the

3 digits are entered, the software will automatically highlight the next octet for

change. Complete entering the SUBNET data.

(j) To execute the change press the configure button. The IP address and the

SUBNET will be updated in the selected Core Tec equipment. The new IP

address will be displayed. The SUBNET will display a default class C- SUBNET

there is no read back of the changed SUBNET displayed.

(k) Repeat this process for all the CORE TEC equipment requiring change.

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