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 DATI / DATO

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FIBOX DATA TRANSMISSION SYSTEMS





The Fibox models DATI-SL and DATO-SL are DATA
transmitter and receiver modules. 

These two slave modules provide a flexible interface capable of moving uni-directional and bi-directional control signals throughthe Fibox digital fiber-optic transmission systems.

A system requires at least one set of master modules.
The DATA modules operate in slave mode only, and
therefore require a minimum of one set of master I/O
modules to form a functional transmission system. Master modules are those which contain the high-speed
multiplexers and the fiber-optic transmitters and receivers.

Slave modules take their timing and clock information
from the master modules, and are not functional unless
slaved to a set of master modules. This is accomplished via a rear panel DB connector and an external linking cable. his allows the transfer of internal clocks, digital data and synchronization signals between a master module and up to five slave modules of any type within the Fibox series. Fibox models which can act as masters for the DATA I/O modules are the FBAI-M and FBAO-M set of analog I/O modules, the FBDO-M AES digital audio output module, and the IMS-Tx and IMS-Rx set of high-speed digital I/Omodules. For full bi-directional signal capability, two
transmission systems must be operational, each
transmitting in opposite directions. 


This requires a minimum of two fibers, one for each direction of signal transmission. An interlink cable between the DATA I/O modules at each end of the system re-creates the
bi-directional signal path for the RS232 and RS485 signals.
Connection to the modules is made via rear panel DB
connectors or other types, as is common for that
particular signal. Front panel rotary switches on both
DATA I/O modules select one of the following signal types
for transmission. Only one basic signal type can be selected for transmission at any one time, however, eight
static signals or switch closures can be sent simultaneously
along with either the RS422, RS232 or RS485 signals.
The following signals may be input or I/O to the DATA
modules.

RS232 Bi-directional capability with CTS, RTS and DTR to
150kbit/sec* bandwidth.
RS422 Uni-directional differential capability to 150kbit/sec*
bandwidth with eight simultaneous switch closures.
RS485 Bi-directional tri-stated differential bus capability to
150kbit/sec* bandwidth with directional control and eight
simultaneous switch closures.

*With the sample rate set at 1.536mhz, a 150kbit/sec
signal would have 10% jitter.
MIDI Opto-isolated 5 pin DIN connector interfaces to
standard 31.25kbit/sec MIDI signal.
SMPTE TIME CODE Coax/BNC connects 5khz bi-phase
mark encoded signals for time-code-controlled
machine synchronization.
SWITCH CLOSURES Eight solid state relays switch up to
300v @ 100ma AC or DC and can be controlled by
positive or negative logic input signals. (Example usage:
Tally or GPI)


ADVANTAGES OF FIBER-OPTIC TRANSMISSION
• No line loss
• Electrical isolation between sites
• Inherent immunity to EMI and RFI
• No ground loops or signal degradation
• Transmission distances up to 4km (2.5 miles)
• High bandwidth allows many multiplexed signals to
share one fiber, drastically reducing the size and weight
of the cable system.
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