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Optical transmitters mo411AL/BL/CL/DL, mo412CL
Product description
The optical transmitters mo411AL/BL/CL/DL and mo412CL are a high performance optical transmitters for forward path transmission of broadcast services.
mo411AL/BL/CL/DL is an optical 1310 nm wavelength transmitters with different optical output power. The optical transmitter mo411AL has 6 dBm,
mo411BL - 8 dBm, mo411CL - 10 dBm and mo411DL - 12 dBm of optical power.
mo412CL is an optical 1550 nm wavelength transmitter. Optical output power of this transmitter is 10 dBm.
The transmitters have input signal loop through. It allows to connect several transmitters in series without using additional RF coupler.
Here are high performance thermally stabilized highly linear cooled DFB lasers with direct modulation of laser current in the transmitters.
The transmitters have automatic RF level control, automatic laser thermo control and automatic laser power control.
The transmitters is equipped with web server and SNMP agent.
Web server provides remote diagnostics and control of the transmitters via Ethernet type network using a Web browser.
SNMP agent operates together with the transmitters and provides remote diagnostics of the device over SNMP protocol. The transmitters 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.
