Moxa Technologies VPort 251 User Manual
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Moxa Technologies VPort 251 User Manual

Moxa Technologies VPort 251 User Manual

Video encoder
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Moxa VPort 251 Video Encoder
User's Manual
Second Edition, June 2008
© 2008 Moxa Inc., all rights reserved.
Reproduction without permission is prohibited.

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  • Page 1 Moxa VPort 251 Video Encoder User’s Manual Second Edition, June 2008 © 2008 Moxa Inc., all rights reserved. Reproduction without permission is prohibited.

  • Page 2: Copyright Notice

    Moxa VPort 251 Video Encoder User’s Manual The software described in this manual is furnished under a license agreement and may be used only in accordance with the terms of that agreement. Copyright Notice Copyright © 2008 Moxa Inc. All rights reserved.

  • Page 3: Important Note

    Before using your VPort 251, please pay close attention to the following items: After opening the VPort 251 box, compare the contents of the box with the Package Checklist in Chapter 1. Notify your sales representative if any of the items is missing or damaged.

  • Page 4: Table Of Contents

    Introduction ....................1-1 Overview..........................1-2 Package Checklist ........................1-4 Product Features ........................1-4 Typical Application........................1-5 Panel Layout of the VPort 251....................1-6 Product Description ......................... 1-7 Chapter 2 Getting Started .....................2-1 Before Getting Started ......................2-2 Initial Installation and Configuration..................2-2 RS-232 Console Configuration (115200, None, 8, 1, VT1 00) ........
  • Page 5 Appendix C Time Zone Table..................C-1 Appendix D Technical Specifications ................D-1...

  • Page 6: Chapter 1 Introduction

    Introduction Chapter 1 The VPort 251 is a high-performance networking video encoder. In addition to being able to handle basic video feeds, many advanced features are also included to set up surveillance or web attraction applications. The VPort 251 is designed to stable, compact, easy to use, and versatile.

  • Page 7: Overview

    DK-35A accessory), and 1 loop-through power output for powering an analog camera. In addition, the VPort 251 provides up to full D1, full frame rate video performance (NTSC: 720 x 480 up to 30 FPS; PAL: 720 x 576 up to 25 FPS) and supports both MPEG4 or MJPEG, making it especially well suited for use with distributed video surveillance systems.
  • Page 8 IP surveillance system. The VPort 251 supports multicast transmission with IGMP protocol, which can reduce the bandwidth requirements when multiple clients access the same video stream, and greatly increases the efficiency of network bandwidth management.

  • Page 9: Package Checklist

    VPort 251 User’s Manual Introduction Package Checklist The Moxa VPort 251 is shipped with the following items. If any of these items are missing or damaged, please contact your customer service representative for assistance. 1 x VPort 251 1 x 5-pin terminal block for 1 DI and 1 relay output...

  • Page 10: Typical Application

    VPort 251 User’s Manual Introduction Intelligent Alarm Trigger Built-in Video Motion Detection (VMD) 1 digital input channel and 1 relay (digital) output channel for exteranl sensor and alarm Alarm-triggered snapshots with pre-alarm and post-alarm snapshots Sequential snapshot images supported Messages with snapshot images can be sent via FTP or Email...

  • Page 11: Panel Layout Of The Vport 251

    VPort 251 User’s Manual Introduction Panel Layout of the VPort 251 1. Grounding screw 2. Power input jack (12 to 32 VDC or 18 to 30 VAC) 3. 5-pin terminal block for digital input and relay output 4. Hardware reset button 5.

  • Page 12: Product Description

    Mini stereo jacks for audio input/output The VPort 251 has 2 mini stereo jacks for audio input and output on the front panel. One jack is for a MIC-in/Line-in audio input connection, which can be directly connected with a microphone or an audio source from an amplifier.
  • Page 13 VPort 251 User’s Manual Introduction RS-232/RS-422/RS-485 COM port The VPort 251 has 1 COM port for PTZ control. This COM port is an RS-232/RS-422/485 serial port with 5 pin terminal block connector. The pin assignments are as follows: RS-422/485 RS-232...

  • Page 14: Reset Button

    1. Reboot: To reboot the VPort 251, power it off and then power it back on again, or push the RESET button one time. The STAT LED will light in red as the POST (Power On Self Test) process runs. When the rebooting process is finished, the STAT LED will change to a green color.

  • Page 16: Chapter 2 Getting Started

    Getting Started Chapter 2 This chapter includes information about how to install a VPort 251 video encoder. The following topics are covered: Before Getting Started Initial Installation and Configuration RS-232 Console Configuration (115200, None, 8, 1, VT1 00) Mounting the VPort 251...

  • Page 17: Before Getting Started

    Step 1: Connect the power source, and connect loop-through power output if required The VPort 251 can be powered by a 12 to 32 VDC power source, or an 18 to 30 VAC power source. The power input jack accepts a concentric barrel-type connector. The loop-through power output accepts a 2-pin terminal block connector.
  • Page 18 Step 5: Configure the VPort 251’s IP address When the VPort 251 is first powered on, the POST (Power On Self Test) will run for a few moments. The STAT LED will turn green when the POST is complete. The NETWORK LED will then flash as the IP address is assigned.
  • Page 19 VPort 251 User’s Manual Getting Started 1. Run the edscfgui.exe program to search for the VPort and EDS switch. After the Utility window opens, you may also select or click on the Broadcast Search (under the List Server menu or click on Broadcast Search icon ) to initiate a search.
  • Page 20 255.255.255.0. You may need to change your computer’s IP address and subnet mask so that the computer and the VPort 251 are on the same subnet. To change the unit’s IP address manually, open the unit’s web console and navigate to System General.
  • Page 21 ActiveX control function or disable security in order to install the ActiveX Control component. Step 8: Verify operation in the web console After the ActiveX Control component is installed, the VPort 251’s web console will appear. Check for the following items to confirm proper installation: 1.
  • Page 22 VPort 251 User’s Manual Getting Started Step 9: Review or modify VPort 251 configuration In the web console, navigate to System Configuration to review or modify the unit’s configuration. For detailed information on settings, please refer to Chapter 4.

  • Page 23: Rs-232 Console Configuration (115200, None, 8, 1, Vt1 00)

    PComm Terminal Emulator, which is free and can be downloaded from Moxa’s website. The following instructions explain how to use PComm to access the RS-232 console. 1. Use an RJ45 to DB9-F (or RJ45 to DB25-F) cable to connect the VPort 251’s RS-232 console port to a COM port on your PC.
  • Page 24 VPort 251 User’s Manual Getting Started 2. From the Windows desktop, click Start Programs PCommLite1.3 Terminal Emulator. 3. Select Open under Port Manager to open a new connection. 4. The Communication Parameter page of the Property window opens. Select the appropriate COM port for Console Connection, 115200 for Baud Rate, 8 for Data Bits, None for Parity, and 1 for Stop Bits.
  • Page 25 VPort 251 User’s Manual Getting Started 5. Click the Terminal tab, and select VT100 for Terminal Type. Click OK to continue. 6. A blank screen will appear. Press Enter, after which a login message will appear. Only the administrator is allowed to use this console configuration. Use admin as the username and the associated admin password as the password.
  • Page 26 Previous Menu Many settings are related to video images, which cannot be shown on the RS-232 console. The NOTE VPort 251’s RS-232 console provides only Basic System Setting and Network Setting. For more advanced configuration, please use the web console. 2-11...

  • Page 27: Mounting The Vport 251

    VPort 251 User’s Manual Getting Started Mounting the VPort 251 Mounting Dimension (Unit=mm) 63.6 31.1 47.5 66.1 88.2 VPort 251 1-Channel Video Encoder 100.2 88.2 60.3 22.6 28.1 44.1 66.1 2-12...

  • Page 28: Din-Rail Mounting (Optional)

    VPort 251 User’s Manual Getting Started DIN-Rail Mounting (Optional) The VPort 251 can be mounted on a 35-mm DIN-Rail using the DK-35A accessory (ordered separately). Wall Mounting The VPort 251 can be mounted on the wall with 2 screws. Make sure that 6.0 mm...

  • Page 29: Wiring Requirements

    Wiring Requirements ATTENTION Be sure to disconnect the power cord before installing and/or wiring your Moxa VPort 251. Calculate the maximum possible current in each power wire and common wire. Observe all electrical codes dictating the maximum current allowable for each wire size.

  • Page 30: Wiring The Digital Inputs

    RS-232 Connection The VPort 251 has one RS-232 (10-pin RJ45) console port, located on the top panel. Use either an RJ45-to-DB9 or RJ45-to-DB25 cable (see the cable following wiring diagrams) to connect the VPort 251’s console port to your PC’s COM port. You may then use a console terminal program, such as Moxa PComm Terminal Emulator, to access the VPort 251’s console configuration utility.

  • Page 31: 10/100Baset(X) Ethernet Port Connection

    RJ45 (10-pin) to DB25 (F) Cable Wiring RJ45 Plug Pin 1 10/100BaseT(X) Ethernet Port Connection The 10/100BaseT(X) port located on the VPort 251’s front panel is used to connect to Ethernet-enabled devices. The following table shows pinouts for both MDI (NIC-type) ports and MDI-X (HUB/Switch-type) ports.

  • Page 32: Ptz Port

    (Rx-) PTZ Port A PTZ port is located on the VPort 251’s front panel. The port is used to connect to a PTZ motorized camera or device, so that the camera or device can be controlled from the VPort over the IP network.

  • Page 34: Accessing Vport 251'S Web-Based Manager

    Accessing VPort 251’s Web-based Chapter 3 Manager This chapter includes information about how to access VPort 251 video encoder for the first time. The following topics are covered: Functions Featured on the VPort’s Web Homepage VPort’s Information Server Name Camera Image View...

  • Page 35: Functions Featured On The Vport's Web Homepage

    VPort 251 User’s Manual Accessing VPort 251’s Web-based Manager Functions Featured on the VPort’s Web Homepage The homepage of the VPort’s web console shows information specific to that VPort, the camera image, and configurations for client and server. The VPort’s web homepage is best viewed using a 1280 x 1024 screen size. This is because the NOTE camera image can be viewed at a resolution up to Full D1 (NTSC: 720 x 480;...

  • Page 36: Server Name

    Audio Control The VPort 251 provides both audio input and audio output for voice over IP communication. Client users can directly enable and disable the audio input (a microphone, for example) by clicking the microphone button, and audio output (a speaker, for example) by clicking the speaker button from the VPort’s web homepage.

  • Page 37: System Configuration

    VPort 251 User’s Manual Accessing VPort 251’s Web-based Manager System Configuration A button or text link on the left side of the system configuration window only appears on the administrator’s main page. For detailed system configuration instructions, refer to Chapter 4, System Configuration.

  • Page 38: Ptz (Motorized) Camera Control

    VPort 251 User’s Manual Accessing VPort 251’s Web-based Manager Zoom, Focus and Moving IRIS control Direction Control Panel PAN, TILT, ZOOM speed configuration, and GO TO preset position Extra Command (Based on the driver) Custom Command PTZ (Motorized) Camera Control If a serial device, such as a motorized camera, is attached to the COM port, the control panel will appear on the main page for user’s who have permission to operate the camera.

  • Page 39: Custom Ptz Camera Commands

    To save the image, click the right mouse button and select the Save option. Relay Control The VPort 251 has 1 relay outputs for external devices, such as alarms. Administrators and permitted users can click on Open to short the Common and Normal Open digital output pins, or...

  • Page 40: Chapter 4 System Configuration

    System Configuration Chapter 4 After installing the hardware, the next step is to configure the VPort 251’s settings. Users can configure by web console. This chapter includes the following sections: System Configuration by Web Console System Network Video Audio Alarm...

  • Page 41: System Configuration By Web Console

    VPort 251 User’s Manual System Configuration System Configuration by Web Console System configuration can be done remotely with Internet Explorer. To access the server, type the system configuration URL, http://<IP address of Video Server>/setup/config.html, to open the configuration main page.

  • Page 42: System

    VPort 251 User’s Manual System Configuration System General Settings On the General Settings page, administrators can set up the video Server name and the Date and Time, which appear in the image’s caption. Server name Setting Description Default Use a different server name for each server to help identify the different Max.
  • Page 43 VPort 251 User’s Manual System Configuration Date and Time Setting Description Default Keep current date and Use the current date and time as the time VPort’s time setting. Sync with computer Synchronize VPort’s data and time time setting with the local computer time.
  • Page 44 The FPS of the video stream will be reduced as more and more users access the same VPort. For NOTE this reason, only 10 users can access the VPort 251 at the same time. Enforcing this kind of restriction helps guarantee the performance of the video stream.
  • Page 45 VPort 251 User’s Manual System Configuration System Diagnosis VPort products have a self-diagnosis function to let the administrator get a quick view of the system and connection status. Administrators can save this diagnosis information in a file (diagnosis.log) by clicking the Export to a File button, or send the file via email by clicking the Send a Report via Email button.

  • Page 46: Firmware Upgrade

    VPort video encoders. System configurations will be changed immediately after the VPort is rebooted. Firmware Upgrade Take the following steps to upgrade the firmware: Step 1: Press the Browse button to select the firmware file. For the VPort 251, the firmware file extension should be .rom. NOTE...

  • Page 47: Reset To Factory Default

    VPort 251 User’s Manual System Configuration Step 2: Click on the Upgrade button to upload the firmware to the VPort. Step 3: The system will start to run the firmware upgrade process. Step 4: Once Firmware Update Success…..Reboot..is shown, please wait for few seconds for the VPort to reboot.

  • Page 48: Network

    VPort 251 User’s Manual System Configuration Network General Network Settings The General Network Settings page includes some basic but important network configurations that enable the VPort to be connected to a TCP/IP network. Access Method VPort products support the DHCP protocol, which means that VPort can get its IP address from a DHCP server automatically when it is connected to a TCP/IP network.
  • Page 49 RTSP can directly acquire and view the video images sent from VPort 251 without any proprietary codec or SDK installations. This makes network system integration much more convenient. For different connection types, the access name is different.
  • Page 50 251’s IP address>[:<RTSP Port]/unicaststream rtsp://<VPort 251’s IP address>[:<RTSP Port]/multicaststream, RTSP Port: 554 Is default and then click on OK to connect to the VPort 251. Step 3: Wait a few seconds for QuickTime Player to establish the connection. Step 4: After the connection has been established, the VPort 251’s video will appear in the QuickTime Player display window.
  • Page 51 VPort 251 User’s Manual System Configuration The video performance of the VPort 251 in other media players may not always be the same. For NOTE example, you will notice a greater delay when viewing the VPort 251’s video from QuickTime player compared to viewing it directly from the VPort 251’s built-in web server.
  • Page 52 VPort 251 User’s Manual System Configuration Note that if the Sender’s email address is not set, a warning message will pop up and the e-mail NOTE system will not be allowed to operate. The 2nd SMTP Server and Sender Email are backups that are used if the 1st SMTP Server and NOTE Sender Email fail when connecting or sending email.

  • Page 53: Dynamic Dns

    VPort 251 User’s Manual System Configuration The 2nd FTP Server is a backup in case the 1st FTP Server fails to connect or has trouble NOTE sending files. Whenever the system reboots, a system log will be sent by email or FTP to show the login status NOTE of the VPort.
  • Page 54 VPort 251 User’s Manual System Configuration Setting Description Default Enable DDNS Enable or disable DDNS function Disable Select the DDNS service providers, including DynDNS.org (Dynamic), Provider None DynDNS.org (Custom), TZO.com, and dhs.org. Host Name The Host Name you use to link to VPort.
  • Page 55 VPort 251 User’s Manual System Configuration Multicast The VPort 251 supports the advanced Multicast network protocol IGMP, which can greatly improve the efficiency of network traffic. In this section, we explain multicasts, multicast filtering, and how multicast can be implemented on your VPort.
  • Page 56 IGMP Group 1 IGMP Group 1 IGMP Group 1 The VPort 251 is the source that delivers the multicast video stream. To benefit from the NOTE Multicast protocol, the gateway or network switch should support the multicast filtering function (such as IGMP Snooping) so that the multicast stream is delivered correctly and precisely. To learn more about IGMP Snooping, refer to the Moxa EtherDeviceTM series Industrial Ethernet Switch user’s manual.

  • Page 57: Configuring Multicast Settings

    VPort 251 User’s Manual System Configuration Configuring Multicast Settings Setting Description Default Multicast group Multicast Group address for sending 239.128.0.99 address video stream. Multicast video port Video port number. 5556 Multicast audio port Audio port number. 5558 Multicast-TTL (Time-to-live) threshold.
  • Page 58 System Configuration Accessible IP List The VPort 251 uses an IP address-based filtering method to control access to the VPort. Accessible IP Settings allow you to add or remove “Legal” remote host IP addresses to prevent unauthorized access. Access to the VPort is controlled by IP address. That is, if a host’s IP address is in the accessible IP table, then the host will be allowed access to the VPort.

  • Page 59: Configuring Snmp Settings

    VPort 251 User’s Manual System Configuration Protocol Security Authentication Data Method Version Mode Type Encryption V1, V2c Use a community string match Read Community string No for authentication Community SNMP V1, V2c V1, V2c Use a community string match Write/Read...
  • Page 60 VPort 251 User’s Manual System Configuration SNMP Read/ Wirte Settings SNMP Versions Setting Description Default Select SNMP Versions V1, V2c, V3 V1, V2c V1, V2c, V3 protocol to manage the switch Select SNMP Versions V1, V2c protocol to V1, V2c...
  • Page 61 VPort 251 User’s Manual System Configuration Root Data Encryption Key (For SNMP V1, V2c, V3 and V3 only) Setting Description Default 8-character data encryption key is the Enable minimum requirement for data encryption. Maximum 30-character encryption key Disable No data encryption User Auth.
  • Page 62 Quality of Service (QoS) provides a traffic prioritization capability to ensure that important data is delivered consistently and predictably. VPort 251 Series can inspect layer 3 ToS (Type of Service) information, to provide a consistent classification of the entire network. VPort 251 Series’ ToS capability improves your industrial network’s performance and determinism for mission critical...

  • Page 63: Video

    VPort 251 User’s Manual System Configuration HTTP Event Servers VPort 251 series can send the customized alarm actions and messages to the HTTP Event Servers, which enables the capability for the users designing the customized alarm system. Video Image Settings...
  • Page 64 You may configure Brightness, Contrast, Saturation, and Hue. Camera Modulation The VPort 251 supports both NTSC and PAL camera modulations. The Administrator can use automatic sensing by selecting Auto, or manually select NTSC or PAL. 4-25...

  • Page 65: Video Performance

    Video Performance VPort 251 support MPEG4 or MJEPG compression standard. Users should select the video compression in first to identify the video stream format. For MJPEG, users can setup the Resolution, Frame Rate and Video Quality in Fixed Quality.
  • Page 66 VPort 251 User’s Manual System Configuration Resolution The VPort 251 supports 5 different resolutions: Full D1, 4CIF, VGA, CIF, and QVGA. Setting Description Default 5 image resolutions (size) are provided. 480 in NTSC or Select the image size The administrator can choose each option 576 in PAL with NTSC or PAL modulation.

  • Page 67: Camera Control

    VPort 251 User’s Manual System Configuration Video Quality Control Video Quality Control is used to optimize the bandwidth of the MPEG4 video stream. There are 2 modes for video quality control. Setting Description Default Fixed bit rate Fixed bit rate of 600 Kbps...
  • Page 68 VPort 251 User’s Manual System Configuration Setting Description Default Each PTZ camera has an ID to identify which PTZ camera is in the multi-drop Camera ID connection. To connect to the PTZ camera, the VPort should first identify its Interface mode...
  • Page 69 Administrators can use the Preset Position function to set up the behavior of the PTZ camera in advance, and then users with camera control privilege can move the camera’s lens to a preset position without the need to control the pan, tilt, and zoom buttons on the VPort 251’s homepage. Set Up Custom Commands VPort products provide 10 custom commands in addition to the general pan, tilt, zoom, and preset functions, which are also shown on the PTZ Control Panel .
  • Page 70 VPort 251 User’s Manual System Configuration Setting Up Custom Camera If the PTZ camera’s driver is not in the list, the administrator can select the custom camera from the Select Camera driver menu to program the PTZ camera with ASCII code. A custom camera window will pop up when the Setup Custom Camera button is clicked.

  • Page 71: Audio

    For the audio connection, MIC-in Audio Source (microphone) and Line-in (voice Microphone amplifier) are included for convenience. Alarm System Alarm In addition to the LED indicators, three kinds of system alarm are provided by the VPort 251 for notifying the system operation administrator. 4-32...
  • Page 72 VPort 251 User’s Manual System Configuration Alarm Type Triggered Condition Triggered Action Network disconnected Relay Network Disconnected Network Disconnected Alarm Setting Description Default Enable network Enable or disable network disconnected Disable disconnected alarm alarm. Enable or disable the action of triggering...
  • Page 73 VPort 251 User’s Manual System Configuration Event Alarm Four kinds of event alarm are provided by the VPort 251 for building an intelligent video surveillance system. Alarm Type Triggered Condition Triggered Action 1. Relay 1. VMD 1 2. Email 2. VMD 2 Video Motion Detection 3.
  • Page 74 VPort 251 User’s Manual System Configuration Alarm Time Interval Setting Description Default Delay second(s) before Set up the time interval for each event 32 seconds detecting the next (10 to 999 seconds) alarm triggered. alarm The delay before detecting the next alarm cannot be less than the time needed to take a snapshot NOTE after an event (post-event image).
  • Page 75 VPort 251 User’s Manual System Configuration The relays will not be triggered when the Override Relay warning setting box is checked. NOTE Un-check this box to ensure that the relays will trigger. Schedule A schedule is provided to set event alarms for daily security applications.
  • Page 76 VPort 251 User’s Manual System Configuration Setting Description Default [I]Sun [I]Mon [I]Tue [I]Wed Select the weekday for scheduling event None [I ]Thu [ I ]Fri alarms. [I]Sat Begin 00:00 Set the beginning time of the event alarm. 00:00 Set the time period of the event alarm to...
  • Page 77 VPort 251 User’s Manual System Configuration Once the Show alert on the image when VMD is triggered is enabled, the red frames that appear NOTE on the homepage image indicate the size of the VMD window set up by the administrator.
  • Page 78 False alarms can be triggered by the flashing of florescent lights, shifting of shadows, etc. Digital Input One digital input is provided by the VPort 251 for linking with alarm detection devices, such as sensor. Setting...

  • Page 79: Video Loss

    VPort 251 User’s Manual System Configuration Please refer to Chapter 1 to see the DI specifications. NOTE Trigger Actions Administrators can set up trigger actions for each DI, including Trigger Relay alarm, Send snapshot image via E-mail, Send snapshot image via FTP, and HTTP Action Settings.
  • Page 80 VPort 251 User’s Manual System Configuration Alarm/Event Alarm/Sequential Snapshot With this feature, the VPort can upload snapshots periodically to an external E-mail or FTP server as a live video source. Use the Send sequential snapshot image every seconds option to set the time interval.

  • Page 82: Appendix A Frequently Asked Questions

    Frequently Asked Questions Appendix A What if I forget my password? Every access to the video encoder needs authentication, unless the admin password is set up as blank. If you are one of the managed users, you will need to ask the administrator for the password.
  • Page 83 VPort 251 User’s Manual Frequently Asked Questions How many users are allowed to access the video encoder at the same time? Basically, there is no limitation. However the video quality also depends on the network bandwidth. To achieve the best effect, the video encoder will allow 10 users for udp/tcp/http connections and 10 users for multicast to be connected.

  • Page 84: Appendix B Settings Of Supported Ptz Cameras

    Settings of Supported PTZ Cameras Appendix B Since the COM port settings can be adjusted to other than the default settings, check the correct default settings for the attached camera. Camera model Baud rate Data bits Stop bit Parity bit Pelco D, P Protocol 2400 None...
  • Page 86 Time Zone Table Appendix C The hour offsets for different time zones are shown below. You will need this information when setting the time zone in automatic date/time synchronization. GMT stands for Greenwich Mean Time, which is the global time that all time zones are measured from. (GMT-12:00) International Date Line West (GMT-11:00) Midway Island, Samoa (GMT-10:00) Hawaii...
  • Page 87 VPort 251 User’s Manual Time Zone Table (GMT+02:00) Harare, Pretoria (GMT+02:00) Helsinki, Kyiv, Riga, Sofia, Tallinn, Vilnius (GMT+02:00) Jerusalem (GMT+03:00) Baghdad (GMT+03:00) Kuwait, Riyadh (GMT+03:00) Moscow, St. Petersburg, Volgograd (GMT+03:00) Nairobi (GMT+03:30) Tehran (GMT+04:00) Abu Dhabi, Muscat (GMT+04:00) Baku, Tbilisi, Yerevan (GMT+04:30) Kabul...

  • Page 88: Technical Specifications

    Technical Specifications Appendix D Video Video Compression MPEG4, MJPEG Video Input 1, BNC Connector NTSC/PAL Auto-sensing or Manual Video Resolution and FPS (frames per second): NTSC Size Max. FPS Size Max. FPS QVGA 320 x 240 320 x 288 352 x 240 352 x 288 640 x 480 640 x 480...
  • Page 89 VPort 251 User’s Manual Technical Specifications Relay Output 1 channel, max. 24 VDC @ 1A LED Indicators STAT Indicates if the system booted properly VIDEO Video input signal active PTZ control signal active Power Inputs Two 12/ 24 VDC or 24 VAC for redundancy...
  • Page 90 VPort 251 User’s Manual Technical Specifications Automatic transfer of stored images via email or FTP with event-triggered actions. HTTP action setting for custom alarm messages by HTTP event server. PTZ (PAN/TILT/ZOOM) PTZ camera control through RS-232/422/485 Supported devices and protocols:...

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