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All product specifications are subject to change without notice Last updated : January 2005
ADAM-4541
ADAM-4542+
Multi-Mode Fiber-Optic to RS-232/422/485
Converter
Single-Mode Fiber-Optic to RS-232/422/485
Converter
Specifications
 Casing ABS with captive mounting hardware
 Communication Mode Asynchronous
 Connector Plug-in screw terminal
 Transmission Mode Full/half-duplex, bidirectional
 Transmission Rate Up to 115. 2 kbps
 Operating Temperature -10 ~ 70° C (14 ~ 158° F)
 Operating Humidity 5 ~ 95% (non-condensing)
 Accessories (included) Nylon DIN-rail mounting adapter, SECC panel
mounting bracket
ADAM-4541
 Fiber Port ST
 Fiber-Optic Transfer Multi-mode
Mode
 Wavelength 820 nm
 Transmission Distance 2.5 km
 Optical Power Budget 12.5 dB
(attenuation)
 Power Consumption 1 W (typical)
1 W (max.)
ADAM-4542+
 Fiber Port SC
 Fiber-Optic Transfer Single mode
Mode
 Wavelength 1310 nm
 Transmission Distance 15 km
 Optical Power Budget 9 dB
 Power Consumption 1 W (typical), 1.5 W (max)
Ordering Information
 ADAM-4541 Multi-Mode Fiber-Optic to RS-232/422/485
converter
 ADAM-4542+ Single-mode Fiber-Optic to RS-232/422/485 Converter
 Easily mounted on a DIN-rail, panel or piggyback
 Transmission speeds of up to 115.2 kbps
 Optical fibers enable transmission of 2.5 km (measured with 62.5/125 mm) for
ADAM-4541
 Half/Full-duplex, bidirectional transmission mode
 Avoids lightning strikes and EMI/RFI interference
 Prevents damage from electrostatic discharge
 Stable and error-free data transmission
 Automatic internal RS-485 bus supervision
 No external flow control signals required for RS-485
 Transient suppression and over-current protection on RS-422/485 data lines
 Reserved space for termination resistors
 LED for power and data flow indication
 Power requirement: +10 to + 30 V
DC
Introduction
Fiber-optic transmission offers the benefits of wide bandwidth, immunity to EMI/RFI interference, and secure data transmission. ADAM-4541 and ADAM-4542+ can be used as an
RS-232/422/485 point-to-point or point-to-multipoint connection for transmitting and converting full/half-duplex signals and their equivalents within a fiber optic environment. Fiber
optics is the perfect solution for applications where the transmission medium must be protected from electrical exposure, lightning, atmospheric conditions or chemical corrosion.
ADAM-4541 and ADAM-4542+ is specifically designed to link various machinery equipped with an RS-232/422/485 communication ports (such as computer systems or manufacturing
machines). Using standard ST connectors, the module's fiber-optic ports can accommodate a wide range of fiber-optic cable sizes, including 62.5/125, 250/125, and 100/140 mm.
Advantages of Fiber Optics
All Dielectric
 Low signal radiation
 Secure transmission
 Lightning immunity
 High-voltage insulation
Compact
 Less duct space
 Fewer additional ducts installed
Low Attenuation
 Greater distance / fewer repeaters
 Less installation and maintenance
Optical Signals
 No ground loops
 No spark hazard
 Operation in flammable areas
High Bandwidth
 Future signal capacity expansion
Courtesy of Steven Engineering, Inc.-230 Ryan Way, South San Francisco, CA 94080-6370-Main Office: [phone]-Outside Local Area: [phone]-www.stevenengineering.com