Industrial Fiber Optic MicroModems®

Synchronous/Asynchronous/Isochronous/ Full duplex transmission/ Speeds up to 5Mbps/ Distances to 20km/Fully Transparent Operation/Commercial and Secure Applications.

When smaller is best, VERSITRON's M62xxD and M82xxD series MicroModems® provide reliable fiber optic data transmission and reception in a compact package with fully transparent operation and full handshaking signals.

These products can currently be found in two unusual application scenarios. The M82xxD Series single-mode versions are being used in a university research project for underwater data communications links between submerged equipment. Purpose: Counting Sea Plankton. These converters are also being used at surface level in order to monitor the count.

The M82xxD Series are also currently used to ensure safe operations at airports. Both pilots and air traffic controllers alike are dependent on numerous systems of light, markings, and signs. The Model M82xxDs are employed to transmit RS-232 switch control signals over fiber. Use of these products allow for secure transmission of these crucial control signals over greater distances with additional isolation from lightning strikes and EMI/RFI disturbances.

Both the M62xxD and the M82xxD Series products operate in either source-timing or terminal-timing modes. In the source-timing mode, a clock and data resynchronization circuit eliminates loop delay and inverted clock signals.

All units are specified with a bit error rate of 10 to the minus 9th. DCE and DTE copper interfaces are available, and LC optical connectors make use of the latest in SFP technology.

Note: V.35 and RS-449 Standards may be configured with optional adapters and the M62xxD Series.

The M62xxD and M82xxD Series products may also be used as multiplexers. Up to six asynchronous data streams may be accommodated by one MicroModem:

• 2 high-speed signals on the clock and data lines
• 4 low-speed signals on the control lines

Small enough to connect directly to data terminal and communications equipment, these products offer versatile solutions and complete transparency for data communications.

Benefits of fiber optics in communications systems:

• Security
• Greater Bandwidth
• EMI/RFI Immunity
• Greater Distances
• Isolation
• Low Signal Attenuation

Application Diagram

Superior Performance – For All Datacom Configurations

These products assure reliable data transmission, at distances up to 2Km over multimode f.o. cable, 20Km over singlemode.

The ability to operate transparently – with minimal affect on transmitted and/or received data – is a major performance advantage of the M62xxD and M82xxD Series. To further assure accuracy in source timing applications, the clock and data are realigned in a unique source timing circuit. Even when translating from one serial data standard to another, minimal delay or no signal formatting effects are encountered.

With their wide range of data rates, and ability to pass control signals for the RS-232 and RS-530 Standards, the M62xxD and M82xxD Series products provide ideal Datacom links as system data rates increase, as additional control signals are required, or as low-speed data channels need to be added. Either Series can be used in a basic three-wire configuration, yet can accommodate a system with control line functions.

Pinout Diagram