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Optical transmitters mo418L, mo428L

  Product description

The optical transmitters mo418L, mo428L (hereinafter - the transmitter) are a high performance 1310/1550 nm wavelength optical transmitter for forward 

path transmission of broadcast services. Both types of transmitters permit to use one optical fiber for CATV and SAT IF signal transmission, mo428 transmitter 

has dual optical output to increase the number of users. 

Transmitter is equipped with web server and SNMP agent. 

Web server provides remote diagnostics and control of the transmitter via Ethernet type network using a Web browser.

SNMP agent operates together with the transmitter and provides remote diagnostics of the device over SNMP protocol. The transmitter generates all 

alarms and events as SNMP traps that can be sent to a host manager. 

The product is intended for indoor usage only. 

  Safety instructions

The transmitter must be installed in accordance with IEC 60728-11 and national safety standards. 

The transmitter is powered from a 12 V power supply unit. This voltage is not dangerous to life.

The power supply unit must have a short circuit protection.

Any repairs must be made by a qualified personnel.

Do not connect the 12 V power supply unit into the mains socket until all cables of transmitter have been correctly connected. The mains socket must 

be easily accessible.

Disconnect the transmitter power supply by removing the power supply cable from the mains socket.

Do not expose this transmitter to moisture or water splashes, make sure no liquid filled objects, e.g. vases, are placed near or on the unit.

Avoid placing the transmitter near heat sources, e.g. central heating components or in areas of high humidity.

Keep the transmitter away from naked flames.

If the transmitter has been stored in cold conditions for a long time, bringing it into a warm environment may cause condensation. In such cases let it 

warm up for at least 2 hours before plugging it into the mains.

To ensure proper ventilation do not block the ventilation openings.

IMPORTANT

: Mounting of the transmitter is allowed vertical only and the free flow of air through the unit must be not restricted. If the transmitter is 

installed in a 19” rack system additional forced air cooling fans may be required (see Table 7 - Operating temperature range). Always leave 10 cm of free 

space from the top, front and bottom of the unit to allow heat dissipation.

  Safety of laser product

Optical Transmitter module contains laser diode sources operating at 1310/1550 nm. These devices are rated under IEC60825-1:2007 “Safety of Laser 

Products”, Part 1: Equipment classification and requirements as CLASS 1M laser product.

When operating the equipment note the following:

Most fiber optic laser wavelengths (1310 nm and 1550 nm) are totally invisible to the eye and will cause permanent eye damage. 

Never look into the end of a fiber on a powered device through  a magnifying device (microscope, eye loupe, magnifying glass, etc.). Before using such 

devices always double check that power is disconnected or, if possible, completely disconnect the unit from any power source.

To verify the light output always use an instrument, such as an optical power meter.

Operate only with the proper optical fiber installed in the transmitter optical connector.

Whenever the optical connector is empty the laser transmitter should be turned off.

Before applying power always connect a fiber to the output of the device. 

Never leave equipment with radiating bare fibers accessible - always cap the connectors.

  Cleaning of optical connectors

The fiber ends may be damaged if  contaminated connectors are inserted. The warranty does not cover some types of damage, made by the customer. 

The standard optical connector for optical transmitter is SC/APC. 

During the operation each fiber connector may be contaminated by dust or dir. Even tiny particles of dust will affect the transmission quality. Dusty fiber 

optic connector will contaminate other connected optic parts. If optical reception power and output level of the receiver decrease, active fiber connection 

should be cleaned and maintained. 

Always clean all the fiber optic connectors before setting.

Reel cleaners or prepackaged lint free wipes or swabs with alcohol are the most convenient means of cleaning optical connectors.

Fiber connectors should never be left uncovered.

Do not exceed the minimum bending radius when connecting cable to the system.

  Structure diagram

Vers. 1.01

Содержание mo418L

Страница 1: ...the unit must be not restricted If the transmitter is installed in a 19 rack system additional forced air cooling fans may be required see Table 7 Operating temperature range Always leave 10 cm of free space from the top front and bottom of the unit to allow heat dissipation Safety of laser product Optical Transmitter module contains laser diode sources operating at 1310 1550 nm These devices are ...

Страница 2: ... 100 Base T 4 indicator of LAN activity yellow LED 5 indicator of the transmitter activity green LED 6 DEF button for default settings 7 data bus connector 8 power distribution bus connector 9 12 V powering input screw terminal 10 OPTICAL OUT optical output SC APC socket 11 RF TEST RF test point F socket Figure 1 External view of the transmitter ...

Страница 3: ...ection MOUNTING The module or mounting bracket must be fixed with steel screws Ø 3 5 4 mm The screws are not included in a package Mounting on a wall by screws Mounting on a bracket supplied Perpendicular to the wall Parallel to the wall Figure 2 Mounting of the transmitter Mounting on DIN rail Figure 3 Mounting to DIN rail Figure 4 Mounting from DIN rail ...

Страница 4: ...owser When a Web browser connects to the device server start page as shown below will appear in the Web browser Figure 7 Start screen Note The device is protected and unauthorized users can only see the Status page In order to have full control of the equipment it is necessary to LOGIN to the device server When trying to operate the device a page Authentication required appears Figure 8 asking to ...

Страница 5: ... address 192 168 1 99 Net mask 255 255 255 0 Gateway 192 168 1 2 SNMP settings Host IP 192 168 1 1 SNMP read community string public SNMP write community string private SNMP trap target community string public Enable Trap On To reset network and login settings of the device server to their default values press twice the DEF button on transmitter front panel Figure 1 pos 6 as explained 1 Press the ...

Страница 6: ...browsers e g IE don t support Up Down control element In this case the appropriate value should be entered from keyboard Gain control allows to switch On or Off the AGC of the transmitter It is used to set automatic RF level control for constant load to the laser The operating AGC level is set by the user when the button Apply settings is pressed After that RF level instability is compensated auto...

Страница 7: ... in the RF input socket Figure 1 Pos 1 This voltage is used to power an external amplifier In case of short circuit or over current the voltage drops and error message Voltage out of range is displayed in the error message field Temperature Indicates the internal temperature of the device If the temperature inside the module achieves the maximum level the error message Overheat is displayed In cas...

Страница 8: ...he MIB are fixed while others are dynamic values calculated by the agent software running on the device Ethernet SNMP agent operates together with optical transmitter and provides remote diagnostics and control of the transmitter via Ethernet type network using SNMP protocol The agent of transmitter can receive SNMP requests from a number of SNMP managers and can send traps to dedicated trap recei...

Страница 9: ...voltages temperature inside module and parameters of the external power suppliers Table 4 Table 4 Status parameters OID Status Description 30631 1 2 1 1 measRfLevel RF level Represented in tenth of dB as example a value of 299 represents level of 29 9 dBm 30631 1 2 1 2 measLaser1Current Laser 1 current represented in mA 30631 1 2 1 3 measLaser2Current Laser 2 current represented in mA Applicable o...

Страница 10: ... pos 7 as shown in the diagram below The data and power distribution cables are supplied together with the optical transmitter Note 1 The server can manage only up to two UP412 devices 2 Please pay attention to the different power supply settings Address of power suppliers does not have to match and will be as follows Table 6 Address settings of power supply Figure 15 Application diagram of mo418L...

Страница 11: ...IF intermodulation distortions IMD3 35 dB Test point 8 0 1 0 dB 47 1750 MHz 6 5 1 5 dB 1750 2400 MHz Optical connector SC APC Network server Ethernet standard 10 100 Base T parameters connector RJ 45 supported protocols ARP Ipv4 HTTP Ping SNMPv2c Supply voltage 12 V 1 V DC feeding for external 12 V 0 4 A Current consumption 0 37 A max 0 42 A max Operating temperature range 0o 50o C Dimensions Weig...

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