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Prevail-Catv WT-1550-DM Operating Manual

Intelligent direct modulated optical transmitter
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WT-1550-DM
Intelligent Direct Modulated
Optical Transmitter Operating Manual

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Summary of Contents for Prevail-Catv WT-1550-DM

  • Page 1 WT-1550-DM Intelligent Direct Modulated Optical Transmitter Operating Manual...

  • Page 2: Table Of Contents

    3.4.2 Display Menu..................- 8 - 3.4.3 Set Menu ..................- 10 - 3.4.4 Alarm Menu ..................- 11 - 4. Installing the WT-1550-DM Optical Transmitter ..........- 12 - 4.1 Receiving and Inspecting................- 12 - 4.2 Precautions ....................- 12 - 4.3 Mounting WT-1550-DM................

  • Page 3: Overview

    This manual applies to WT-1550-DM optical transmitter. • Chapter 1 gives general information about the WT-1550-DM optical transmitter. • Chapter 2 describes the complete technical specifications of WT-1550-DM. • Chapter 3 describes the front/rear panel interfaces and menu system.

  • Page 4: Product Applications

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter Block Diagram WT-1550-DM directly modulated optical transmitter block diagram WT-1550-DM inter-cut part block diagram 1.3 Product Applications • 1550nm Optical fiber transmission system • Construct the CATV network • Local value-added services inter-cut - 3 -...

  • Page 5: Technique Parameters

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter 2. Technique Parameters Item Unit Technique Parameters Output optical power 1550±10 (have to be ITU wavelength when Optical wavelength with inter-cut function) Dispersion compensation ≤50 distance Laser type DFB laser Optical modulation mode Direct optical intensity modulation...

  • Page 6: Panel Interface And Menu System Description

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter 3. Panel Interface and Menu System Description 3.1 Front Panel Front panel schematic diagram Power indicator Running indicator Laser indicator RF input indicator ESC key UP key DOWN key Enter key RF output test port Laser switch 3.1.1 Indicator Description...

  • Page 7: Rear Panel

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter 3.2 Rear Panel Rear Panel schematic diagram Name Remark RF input Local RF input Generally reserved Ground stud Used for the connection of device and ground wire Optical input Inserted optical signal input (without inter-cut function, no this port)

  • Page 8: Menu Operation

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter 3.4 Menu Operation 3.4.1 Main Menu In: 0.0 Out:10.3 Enter dBuV 1. Disp Parameters 2.Set Parameters 3.Alarm Status Displayed parameters Comments Boot display 1.Disp Parameters Menu one: Display parameters 2.Set Parameters Menu two: Set parameters 3.Alarm Status...

  • Page 9: Display Menu

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter 3.4.2 Display Menu 1.Disp Parameters Enter OP After ATT: xx.xdBm Laser Power: xx.xdBm Laser Bais: xx.xmA Input Power: -xx.xdBm Laser Temp: xx.x℃ Tec Current: -x.xxA RF Chan NO: Laser RF: x dBuV RF Control Mode:...
  • Page 10 WT-1550-DM Intelligent Direct Modulated Optical Transmitter Displayed parameters Comments Laser Power Laser output optical power Optical power after attenuation OP After ATT (without inter-cut function, no this menu) Input Power External optical signal power (without inter-cut function, no this menu)

  • Page 11: Set Menu

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter 3.4.3 Set Menu Enter 2.Set Parameters Set LaserOutPut Unit Set Buzzer Alarm Set RF Control Mode Set MGC ATT xdBm Set AGC Ref Auto Manu Set PredATT Mode Set FiberC Length Set Channel Number Set Local IP Address xxx.xxx.xxx.xxx...

  • Page 12: Alarm Menu

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter Displayed parameters Comments Remarks Set the unit of output optical Set LaserOutPut Unit power Set Buzzer Alarm Set the buzzer alarm YES is on, NO is off Set RF Control Mode Set the RF control mode...

  • Page 13: Installing The Wt-1550-Dm Optical Transmitter

    Mounting the WT-1550-DM in the standard 19 inch equipment rack: 1. Place the equipment in the rack. 2. Use four screws fixed the mounting lug on the WT-1550-DM front panel to the rack. 3. Reliably ground the equipment. The ground terminal is on the rear panel.

  • Page 14: Connecting The Optical Fiber Cables

    4. Note to butt the nick of the connectors and align them accordingly. 4.3.4 Connecting the Ethernet Cable You can connect the WT-1550-DM to your TCP/IP network in order to monitor and control the transmitter remotely. After you complete the installation procedures described in this chapter, you can use a network management system (NMS) to monitor and control the WT-1550-DM.

  • Page 15: Communication Setup

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter 5. Communication Setup 5.1 RS232 Communication Interface Description Adopt DB9 standard connector, the pin definitions as follow: 1: No Connect 2: TX 3: RX 4: No Connect 5: GND 6: No Connect 7: No Connect...
  • Page 16 WT-1550-DM Intelligent Direct Modulated Optical Transmitter Press the “OK” button shows the configuration page of serial port. As follows: Change the serial port configuration to 38400-baud rate, 8 data bits, no parity bit, 1 stop bit, no data flow control, press the “OK” button, you have set up the Windows serial port Hyper Terminal.

  • Page 17: Operating Parameters Configuration

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter 5.3 Operating Parameters Configuration Under the condition of power off, use the serial port lines to connect the RS232 port with the computer port. Open the Windows Hyper Terminal which you have set up.
  • Page 18 WT-1550-DM Intelligent Direct Modulated Optical Transmitter System supports the following commands: help List internal commands of the system; ethcfg Configure the Ethernet operating parameters; settrap Configure the aim host IP address of the SNMP Trap; community Configure the SNMP group name;...
  • Page 19 WT-1550-DM Intelligent Direct Modulated Optical Transmitter ethcfg This command configures the Ethernet parameters, including IP address, subnet mask and gateway. You can refer to the help information for its using. settrap This command shows or modifies the aim host IP address list of the SNMP Trap, IP address of 0.0.0.0 and 255.255.255.255 don’t exist.

  • Page 20: Remote Monitoring: Snmp

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter 5.4 Remote Monitoring: SNMP LAN communication interface Adopt RJ45 standard connector, the pin definitions as follow: 1: TX+ 2: TX- 3: RX+ 4: No Connect 5: No Connect 6: RX- 7: No Connect 8: No Connect A: Green indicator flashing means that the LAN port is sending data.

  • Page 21: Maintenance And Troubleshooting

    We recommend that you clean all mating fiber connectors before connecting them to an optical transmitter. In addition, if you suspect that the optical connector of WT-1550-DM may have been exposed to contamination (by a dirty fiber cable connector, for example), you should properly clean the WT-1550-DM optical connector before connecting the optical fiber.

  • Page 22: Troubleshooting

    WT-1550-DM Intelligent Direct Modulated Optical Transmitter 6.2 Troubleshooting Should a problem occur, see if the symptoms are listed in Table 6-1. Table 6-1: Troubleshooting Solutions Alarm menu Fault Indicator status Solution content phenomenon Verify the switch is on and the power supply is connected.

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