TeleEye VT3-1CA Installation Manual

Transmission unit

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Transmission Unit
Installation Guide

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Summary of Contents for TeleEye VT3-1CA

  • Page 1 Transmission Unit Installation Guide...
  • Page 2 Notice: reserves the right to make improvements to the product described in this manual at any time and without notice. This manual is copyrighted. All rights are reserved. This manual may not be copied, reproduced or translated in whole or part without prior consent from Eye is a trademark of Signal Communications Limited and is registered in China, Hong Kong, US and other countries.
  • Page 3 WARNING Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. NOTE This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
  • Page 4: Table Of Contents

    Table of Contents SECTION 1 INTRODUCTION • Features SECTION 2 INTERFACE DESCRIPTION • Model: VT3-1CA • Model: VT3-2CA / VT3-4BA / VT3-4CA • Model: VT3-4B / VT3-4C • Model: VT3-8BA / VT3-8CA • Model: VT3-16BA / VT3-16CA SECTION 3 GENERAL TERMS DISCUSSION •...
  • Page 5 B2. For Broadband Internet Connection with Static IP C1. For Broadband Internet Connection with Dynamic IP using Router • What you need • Transmitter Configuration • Router Configuration • Transmitter Installation C2. For Broadband Internet Connection with Dynamic IP using Broadband Dialer •...
  • Page 6 • Model: VT3-1CA/VT3-2CA / VT3-4BA / VT3-4CA • Model: VT3-4B / VT3-4C • Model: VT3-8BA / VT3-8CA • Model: VT3-16BA / VT3-16CA...
  • Page 8: Introduction

    III+ nstallation Guide Page 1 SECTION INTRODUCTION III+ Network CCTV, new evolution of Eye series, is a one-plug module on LAN for video monitoring. III+ The powerful works on broadband Internet economically and gives you exceptionally well real time video transmission at speed up to 25/30 fps. Its sureLINK technology allows low cost dynamic IP broadband Internet connection.
  • Page 9: Features

    III+ nstallation Guide Page 2 Features • Transmits high quality video of multiple CCTV cameras • Achieves fast video update by using interframe image compression • Communications with the monitoring station over a voice-grade telephone line or network • Password protection on calls and settings •...
  • Page 10: Model: Vt3-1Ca

    III+ nstallation Guide Page 3 SECTION INTERFACE DESCRIPTION III+ The panels of the transmitter model is shown below: Functional Description for 1 cam Transmitter with Alarm VIDEO INPUT Connectors - Standard BNC connectors for color video sources - A composite video signal should be supplied to these connectors Power OUTPUT, ALARM &...
  • Page 11 III+ nstallation Guide Page 4 Collision & Link LED Status - COL LED, when on, indicates that collision is occurring on the network. III+ - LINK LED, when on, indicates that transmitter is connecting to the network and ready to function. AUX Port - Reserved for remote Pan/Tilt/Zoom operation III+...
  • Page 12: Model: Vt3-2Ca / Vt3-4Ba / Vt3-4Ca

    III+ nstallation Guide Page 5 III+ The panels of the transmitter model is shown below: III+ The panels of the transmitter model are shown below: Functional Description for 2 & 4 cam Transmitter with Alarm VIDEO INPUT Connectors (CH1 – CH2/CH4) - Standard BNC connectors for color video sources - A composite video signal should be supplied to these connectors ALARM &...
  • Page 13: Model: Vt3-4B / Vt3-4C

    III+ nstallation Guide Page 6 P7 & P8: Dry Contact Common GROUND Ethernet Socket (10/100 Base-T) III+ - This socket is used for connecting transmitter to the corporate computer network (e.g. LAN) Collision & Link LED Status - COL LED, when on, indicates that collision is occurring on the network. III+ - LINK LED, when on, indicates that transmitter is connecting to the network...
  • Page 14 III+ nstallation Guide Page 7 Functional Description for 4 cam Transmitter without Alarm VIDEO IN Connectors (CH1 - CH4) - Standard BNC connectors for the video sources - A composite video signal should be supplied to these connectors Ethernet Socket (10/100 Base-T) III+ - This socket is used for connecting transmitter to the corporate computer...
  • Page 15: Model: Vt3-8Ba / Vt3-8Ca

    III+ nstallation Guide Page 8 Eye III+ The panels of the transmitter model are shown below: COL LINK Ethernet ALARM & SW 10/100 Base-T Eye III+ The panels of the transmitter model are shown below: COL LINK Ethernet ALARM & SW 10/100 Base-T Interface Description...
  • Page 16 III+ nstallation Guide Page 9 Functional Description for 8 and 16 Cam Transmitter VIDEO IN Connectors (CH1 – CH8) for and (CH1-CH16) - Standard BNC connectors for video sources - A composite video signal should be supplied to these connectors ALARM &...
  • Page 17 III+ nstallation Guide Page 10 Alarm Port Definition model: Pin 1 - ALARM IN 1 Pin 20- GND Pin 2 - ALARM IN 2 Pin 21- GND Pin 3 - ALARM IN 3 Pin 22- GND Pin 4 - ALARM IN 4 Pin 23- GND Pin 5 - ALARM IN 5...
  • Page 18: Registration Checking

    No additional procedures or settings are needed and you can just enter your site address (e.g. http://www.hkoffice.teleeye.teleeye.net) at the web browser and view the site immediately. To see how to use this, please read section 6.
  • Page 19: Site Monitoring Method

    III+ nstallation Guide Page 12 Site Monitoring Method There are mainly four methods to link up with the transmitter to see videos: Telephone Line (Null Modem/Public Telephone Network/ISDN) TCP/IP in LAN TCP/IP on the Internet using Broadband and Internet Router TCP/IP on the Internet using Broadband with Dial-up Software You have to choose one of the System Configuration Methods in later section to Eye III+...
  • Page 20: Surelink Technology

    Address A sureLINK address (domain name), such as www.hkoffice.teleeye.teleeye.net, will be assigned for each transmitter so that you can use it to login or browse the web server in the transmitter. In this case, you are not required to memorize the exact IP address (e.g.
  • Page 21: How To Apply

    Page 14 How to Apply for sureLINK Address You can apply for sureLINK by visiting our web site at http://www.TeleEye.com Step1: Sign up to create your user account Step 2: Login the page using the your registered name and password.
  • Page 22: Transmitter Modification

    III+ nstallation Guide Page 15 Step 4: Enter a sureLINK address (Domain Name), your Transmitter Serial No. and Registration Code in the fields provided respectively. Then click the Apply button. The process is then completed. After we received your domain name registration for your transmitter, your application will be processed.
  • Page 23 III+ nstallation Guide Page 16 Step 2: Enter the Old Registration Code, New Transmitter Serial Number and New Registration Code at each field provided. Click Modify button to submit the form. If the above procedure is completed successfully, the sureLINK will take effect immediately. sureLINK Technology...
  • Page 24: For Dial-Up And Leased Line Connection

    III+ nstallation Guide Page 17 SECTION SYSTEM CONFIGURATION ! " " # A. For Dial-Up and Leased Line Connection Support 1/2/4/8/16 Video Sources What You Need Hardware: PC - Minimum Requirement: Pentium II 350 MHz Windows 95, 98, ME, NT or 2000 Operating System 64MB RAM for Windows 95/98/ME, 128MB RAM for Windows NT/2000 III+...
  • Page 25 III+ nstallation Guide Page 18 Power Adapter It is a 9 to 12 VDC power adapter. Serial Cable It is a shielded, straight-through, DTE (Data Terminal Equipment) - DCE (Data Computer Equipment) serial cable. The cable needs a female DB-9 III+ connector for PC at one end and a male connector for...
  • Page 26: Transmitter Configuration

    III+ nstallation Guide Page 19 Transmitter Configuration After you prepared all the things discussed in previous section, you should be ready to configure the transmitter. Note that you have to do so by following the steps discussed below before you install Eye III+ and use the transmitter.
  • Page 27 III+ nstallation Guide Page 20 Step 5: Click on the General page. In the Connection group with Device menu, choose the suitable serial port (COM1 or COM 2 or so on) for current connection to the transmitter. At the same time, enter the administrator password at the Admin Pwd field (The default administrator password is “000000”).
  • Page 28: Transmitter Installation

    III+ nstallation Guide Page 21 Transmitter Installation Support 1/2/4/8/16 Video Sources Step 1: Plug the telephone cable into the modem' s LINE connector. Step 2: Plug the other end into the telephone wall jack. Step 3: Plug the modem power cable into the modem power connector. Step 4: Plug the male end of the serial cable into the female connector on the modem' s rear panel.
  • Page 29: B1. For Internal Lan Access

    III+ nstallation Guide Page 22 B1. For Internal LAN Access What You Need III+ To configure and set up the transmitter, the following basic items are required: Hardware: III+ Transmission Unit The video transmitter supports up to 1/2/4/8/16 video sources in all PAL or NTSC format.
  • Page 30: Transmitter Configuration

    III+ nstallation Guide Page 23 RJ-45 Network Cable It is a shielded, straight-through RJ-45 network cable. The cable will connect III+ transmitter to the hub of the LAN for typical application. Software Transmitter Configuration software A PC with Transmitter Configuration program installed (included in the CD- ROM WRS3-AD software).
  • Page 31 III+ nstallation Guide Page 24 Step 1: Connect a shielded, straight-through 9-to-9 serial cable from the serial port of the computer III+ to the AUX port of the transmitter. III+ Step 2: Turn on the transmitter. A blue light at the front panel will flash continuously if it is successfully turned on.
  • Page 32 III+ nstallation Guide Page 25 Step 8: Enter your transmitter’s IP address and port (default is 1024), and your network’s subnet mask to IP, Port and Subnet Mask fields at Transmitter’s IP group respectively. Step 9: Configure the Registration Checking and Video Mode settings. Step 10: You can Enable the Built-in Web Server so that you can see video through web browser Step 11: Ensure all settings are correct, then press the Save and Exit button Step 12: Please wait until it shows Completed([baud rate]) message box, where [baud rate] shows...
  • Page 33: Transmitter Installation

    III+ nstallation Guide Page 26 Transmitter Installation Support 1/2/4/8/16 Video Sources ' ( ) * + , Step 1: Plug the RJ-45 network cable into the socket on the hub' s rear panel. Afterwards, plug the III+ other end of the network cable into the socket on the transmitter ' s rear panel.
  • Page 34: B2. For Broadband Internet Connection With Static Ip

    III+ nstallation Guide Page 27 B2. For Broadband Internet Connection with Static IP Internet Please follow the step of B1 Internal LAN Access except you have to set the Gateway IP of your LAN when configuring the transmitter. System Configuration and Installation...
  • Page 35: What You Need

    III+ nstallation Guide Page 28 C1. For Broadband Internet Connection with Dynamic IP using Router To WAN (Dynamic IP) Crossover Network Cable Transmitter ADSL Modem Router What You Need III+ To configure and set up the transmitter, the following basic items are required: Hardware: III+ Transmission Unit...
  • Page 36: Transmitter Configuration

    III+ nstallation Guide Page 29 Crossover Network Cable Used to connect between the router and PC or the transmitter Software Transmitter Configuration software A PC with Transmitter Configuration program installed (included in the CD- ROM WRS3-AD software). Information Valid IP address for the transmitter Router IP address (Please refer to your router menu) Administrator Password for the transmitter (The default administrator password is “000000”.
  • Page 37 III+ nstallation Guide Page 30 Step 1: Connect a shielded, straight through 9-to-9 serial cable from the serial port of the computer III+ to the AUX port of the transmitter. III+ Step 2: Turn on the transmitter. A blue light at the front panel will flash continuously if it is successfully turned on.
  • Page 38 III+ nstallation Guide Page 31 Step 7: A Completed([baud rate]) message box will be displayed. The transmitter default information will be displayed at each field (Figure 3.2). Step 8: Enter your transmitter’s IP address and port (default is 1024), and your network’s subnet mask to IP, Port and Subnet Mask fields at Transmitter’s IP group respectively.
  • Page 39 III+ nstallation Guide Page 32 Step 13: Ensure all settings are correct, then press the Save and Exit button Step 14: Please wait until it shows Completed([baud rate]) message box, where [baud rate] shows the serial port baud rate you are connecting between the PC and the transmitter. If Transmission unit not found! message is displayed, make sure that your cable connection between the transmitter and your PC is well connected.
  • Page 40: Router Configuration

    III+ nstallation Guide Page 33 Router Configuration Introduction – Use of Router 210.177.50.156 port 1024 Login: 210.177.50.156 192.168.0.1 port 1024 port 1024 Internet ADSL modem Router 192.168.0.2 port 1024 There are many features in the router. But you only need to use some of the features provided: i) Making Connection ii) Port Mapping...
  • Page 41: Transmitter Installation

    III+ nstallation Guide Page 34 Transmitter Installation Support 2/4/8/16 Video Sources To WAN (Dynamic IP) Transmitter ADSL Modem Router Step 1: Plug an RJ-45 network cable into the socket on the router’s rear panel labeled “LAN”. III+ Afterwards, plug the other end of the network cable into the socket on the transmitter ' s rear panel.
  • Page 42: C2. For Broadband Internet Connection With Dynamic Ip Using Broadband

    III+ nstallation Guide Page 35 C2. For Broadband Internet Connection with Dynamic IP using Broadband Dialer ADSL Modem Home PC To LAN Switch Internet BroadBand dial-up to Internet Transmitter Remote PC What You Need III+ To configure and set up the transmitter, the following basic items are required: Hardware: III+...
  • Page 43: Transmitter Configuration

    III+ nstallation Guide Page 36 Serial Cable It is a shielded, straight-through, DTE (Data Terminal Equipment) - DCE (Data Computer Equipment) serial cable. The cable needs a female DB-9 III+ connector for PC at one end and a male connector for DB-9 transmitter at the other.
  • Page 44 III+ nstallation Guide Page 37 III+ Step 2: Turn on the transmitter. A blue light at the front panel will flash continuously if it is successfully turned on. III+ Step 3: Install the ‘s Reception Software (WRS3- AD) from the CD-ROM to the computer.
  • Page 45 III+ nstallation Guide Page 38 Home Network 192.168.0.0 ADSL Modem To LAN Home PC Switch Internet BroadBand dial-up to Internet Transmitter Fixed Virtual IP: Fixed Virtual IP: 192.168.0.2 192.168.0.3; One external dynamic real IP Remote PC Step 8: Configure the Registration Checking and Video Mode group settings. Leave the Transmitter’s IP group with the default values (The transmitter IP is 192.168.0.2 with port 1024.The subnet mask is 255.255.255.0).
  • Page 46 III+ nstallation Guide Page 39 Step 11: At the ProxyServer page, Enable the Proxy Server and enter the PC IP address (e.g. 192.168.0.3 which will be configured in your computer and will be discussed later) for IP field and 19001 for port field. Step 12: Ensure all settings are correct, then press the Save and Exit button Step 13: Please wait until it shows Completed([baud rate]) message box, where [baud rate] shows the serial port baud rate you are connecting between the PC and the transmitter.
  • Page 47: Eye Proxy Server Configuration

    Transmitter Broadband dial-up to Internet Step 14: Install TeleEye Proxy Server into your PC. Step 15: Double click the icon; the following window will then be shown. Step 16: Enter your Transmitter IP (e.g. 192.168.0.2) and Port (default value1024) to Transmitter IP group.
  • Page 48: Transmitter Installation

    III+ nstallation Guide Page 41 Keep open the program throughout the connection. You will see a Eye Proxy icon on your system tray. Transmitter Installation After you configured the transmitter, you can place the transmitter to your remote side. To WAN (Dynamic IP) ' ( ) * + , To LAN...
  • Page 49 III+ nstallation Guide Page 42 Step 1: Plug an RJ-45 network cable into the socket on the switch’s rear panel. Afterwards, plug the III+ other end of the network cable into the socket on the transmitter ' s rear panel. Step 2: Plug an RJ-45 network cable into the socket on the switch’s rear panel.
  • Page 50: D1. For Direct Modem Dial Up Access

    III+ nstallation Guide Page 43 D1. For Direct modem dial up Access Phone No.: 12345678 Modem ISDN/PSTN Phone No.: 12345678 Eye III+ Transmitter Installation Support 2/4/8/16 Video Sources To ISDN RS232C cable Transmitter Modem Step 1: Plug the RS232C cable into the socket on the modem ‘s rear panel. Afterwards, plug the III+ other end of the RS232C cable into the socket on the transmitter ' s rear panel...
  • Page 51: Transmitter Configuration Procedure

    ' s LED on the front Panel and the LINK LED on the rear panel should light up. Step 9: You may now use the TeleEye III+ Reception Software to connect to the transmitter. For the instructions of using the software, please refer to the TeleEye III+ Reception Software User Guide.
  • Page 52 III+ nstallation Guide Page 45 Step 5: Set the Bit Rate of 38400 bps; the following window will be shown below. Step 6: Then click the OK button. Step 7: Disable the PPP mode function Double click the icon of the Transmitter Configuration Software “T3Config” and connect it to the VT transmitter.
  • Page 53 Step 9: You are now ready to dial-up the modem to access the Transmitter. Double click and open the “TeleEye III+ Reception Software WRS3-AD” Reception Software and click “connect…” icon to access the direct modem dial up service; he following window will be shown below.
  • Page 54: D2. For Ppp Dial Up Service Access

    Post the IP address to sureLINK server User use the sureLINK address to connect to the TeleEye III+ transmitter either by browser or reception software When PPP dial up service is enabled, the transmitter will automatically dial up to the ISP (Internet Service Provider) using through the CDMA 1X wireless modem.
  • Page 55: Transmitter Configuration Procedure

    ' s LED on the front Panel and the LINK LED on the rear panel should light up. Step 10: You may now use the TeleEye III+ Reception Software to connect to the transmitter. For the instructions of using the software, please refer to the TeleEye III+ Reception Software User Guide.
  • Page 56 III+ nstallation Guide Page 49 Step 5: Set the Bit Rate to the same as that of your CDMA1x modem baud rate; the following window will be shown below. (To see how to configure the modem baud rate, please refer to modem user manual) Step 6: Then click the OK button.
  • Page 57 III+ nstallation Guide Page 50 Click “Enable PPP (Point-to-Point Protocol) Mode” Enter your ISP username for PPP authentication. Enter your ISP password for PPP authentication. Enter the prefix of the ISP dialing account phone number. (If required) Enter your ISP dialing account phone number. Enter the Extra AT Command.
  • Page 58 Step 12: After that the transmitter will automatically dial up and connected to the PPP mode. When dial-up connection is successful, please open the “TeleEye III+ Reception Software WRS3-AD” and clicks the “Connect…” Icon; the following window will then be shown below.
  • Page 59 III+ nstallation Guide Page 52 Step 13: Setup the PPP connection information of the following steps Enter your sureLINK address. Select the TCP/IP into connect using. Enter your password Ensure all settings are correct, then press the ”Connect” button Now you can view live video from the transmitter and show in the Reception software. System Configuration and Installation...
  • Page 60: Using Built-In Web Server

    Server feature when configuring the transmitter. For details please read Transmitter Configuration http://your sureLINK address In your browser type (e.g. http://www.hkoffice.teleeye.teleeye.net) and you will see a web site like this (Ensure that your transmitter is well configured and installed): Transmitter Web Server...
  • Page 61 III+ nstallation Guide Page 54 Enter your transmitter login password and press Login button. A new page will be displayed: Click to select the camera You can choose the cameras by clicking the hyperlink on the left. Note: If you have any problem on opening the page, please go to http://java.sun.com/getjava/index.html to update your Java VM.
  • Page 62: Appendix

    III+ nstallation Guide Page 55 SECTION APPENDIX IP Address Setup for Windows 98/ME The follow procedures will set your Ethernet Card IP address manually for your local LAN purpose. Note that these procedures will NOT affect your PC to get on the Internet. If you discover that you cannot be able to access on the Internet after applying the settings, you have to undo the settings or re-install the software provided by your ISP and retry the steps again.
  • Page 63 III+ nstallation Guide Page 56 Two of them are very important for setup. One of them is used for your local intranet (the field may contain the name of your Ethernet card), the other one is used for your broadband Internet connection.
  • Page 64 III+ nstallation Guide Page 57 Step 7: Select your Ethernet card name on the field, you will see a IP address on the field. Ensure that that is the same as you have set before (i.e. 192.168.0.3). If it is not so, please repeat step 12. Click OK to close the program.
  • Page 65: Ip Address Setup For Window Nt/2000

    III+ nstallation Guide Page 58 IP Address Setup for Windows NT/2000 The follow procedures will set your Ethernet Card IP address manually for your local LAN purpose. Note that these procedures will NOT affect your PC to get on the Internet. If you discover that you cannot be able to access to the Internet after applying the settings, you have to undo the settings or re-install the software provided by your ISP and retry the steps again.
  • Page 66: Router Configuration

    III+ nstallation Guide Page 59 Step 4: Enter an IP address, subnet mask and Default gateway. Step 5: Enter the Preferred and Alternate DNS server, if necessary. Step 6: Click OK to activate the new IP. Step 7: You have to confirm the IP address has been correctly set on your computer. On your windows, click start >...
  • Page 67: Advanced Configuration Modifying Settings

    III+ nstallation Guide Page 60 SECTION ADVANCED CONFIGURATION MODIFYING SETTINGS You have several methods to modify the transmitter settings. By referring to which method you are currently connecting to the transmitter to view the video, you can choose ONE of the methods below to make the changes.
  • Page 68: Through Serial Port

    III+ the AUX port of the Step 2: From Start menu, select Program Files TeleEye III+ Transmitter Configuration to run the Configuration program. Then, the Configuration program should appear. Step 3: Click on the General page. In the Connection group with Device menu, choose the suitable serial port (COM1 or COM 2 or so on) for current connection to the transmitter.
  • Page 69: Through Internet/Intranet

    III+ nstallation Guide Page 62 2. Through Internet/Intranet Step 1: Make sure the transmitter is turned on and connect to your network with a valid IP address. Step 2: From Start menu, select Program Files Eye III+ Transmitter Configuration to run the Configuration program.
  • Page 70: Through Modem

    III+ nstallation Guide Page 63 3. Through Modem Step 1: Make sure your PC is connected to a modem and is turned on. Step 2: From Start menu, select Program Files Eye III+ Transmitter Configuration to run the Configuration program. Then, the Configuration program should appear. Step 3: Click on the General page.
  • Page 71: Specifications

    III+ nstallation Guide Page 64 SECTION SPECFICATIONS MODEL VT3-1CA VT3-2CA VT3-4CA VT3-4BA VIDEO STANDARD (P): PAL/CCIR, 625 LINES, 50 FIELDS PER SECOND (N): NTSC/EIA, 525 LINES, 60 FIELDS PER SECOND INTERFACE 1 CHANNEL 2 CHANNELS 4 CHANNELS, 1.0V COMPOSITE, BNC WITH 75Ω TERMINATION...
  • Page 72 III+ nstallation Guide Page 65 POWER INPUT VOLTAGE 9 - 12V DC POWER CONSUMPTION 12W (MAX.) OUTPUT VOLTAGE DC 12V OUTPUT CURRENT 500mA ENVIRONMENT CONDITIONS AMBIENT C TO +40 TEMPERATURE C TO 104 RELATIVE HUMIDITY 20% TO 85%, NO CONDENSATION MECHANICAL DESIGN DIMENSION (W x D x H) 254mm x 203mm x 38mm...
  • Page 73 III+ nstallation Guide Page 66 POWER REQUIREMENT INPUT VOLTAGE 9 - 12V DC POWER CONSUMPTION 12W (MAX.) ENVIRONMENT CONDITIONS AMBIENT C TO +40 TEMPERATURE C TO 104 RELATIVE HUMIDITY 20% TO 85%, NO CONDENSATION MECHANICAL DESIGN DIMENSION (W x D x H) 254mm x 203mm x 38mm COLOR SILVER...
  • Page 74 III+ nstallation Guide Page 67 RATE 2400 – 19200 bps FORMAT ASYNCHRONOUS, 8 DATA BITS, NO PARITY, 1 STOP BIT (N,8,1) FLOW CONTROL HARDWARE (RTS, CTS) PROTOCOL EFFICIENT ERROR CONTROL PROTOCOL MODEM CONTROL HAYES COMMANDS POWER REQUIREMENT INPUT VOLTAGE 9 - 12V DC POWER CONSUMPTION 12W (MAX.) ENVIRONMENT CONDITIONS...
  • Page 75 III+ nstallation Guide Page 68 RATE 10/100 Mbps PROTOCOL TCP/IP TYPE RS-232C, DB-9 FEMALE CONNECTOR RATE 2400 – 19200 bps FORMAT ASYNCHRONOUS, 8 DATA BITS, NO PARITY, 1 STOP BIT (N,8,1) FLOW CONTROL HARDWARE (RTS, CTS) PROTOCOL EFFICIENT ERROR CONTROL PROTOCOL MODEM CONTROL HAYES COMMANDS POWER REQUIREMENT...

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