The J724 is a compact standalone electrical-to-optical converter. It accepts a digital logic level input and provides a fast fiber-coupled laser drive.
Input threshold is user-settable from -4.0 to +5.0 volts, and termination is selectable to be 50 ohms or 2K.
The J724-1 includes an 850 nanometer VCSEL with ST connector, suitable for driving 62/125 micron multimode fiber. It can drive the J730-1 single-channel O/E converter or the six-channel V730-1 VME O/E converter module.
The J724-3 uses a 1310 nm Fabry-Perot laser with ST connector, intended for use with 9/125 micron singlemode fiber, but also usable with 62/125 micron multimode fiber. It can drive the J730-3 standalone O/E converter or the V730-3 VME six-channel receiver. Because of the low temporal dispersion of singlemode fiber, a 1310 nanometer singlemode system will demonstrate superior timing stability and lower jitter over long distances.
The J724-5 uses a 1550 nanometer Fabry-Perot laser with ST connector, intended for use with 9/125 micron singlemode fiber, but also usable with 62/125 micron multimode fiber. It can drive the J730-5 standalone O/E converter or the V730-5 VME six-channel receiver.
All J724 models are also available with FC connectors.
The J724 is also an excellent source for the T760 dual-channel 100-volt output optical-to-electrical converter.
FUNCTION | Single-channel electrical-to-optical converter |
INPUT | Electrical logic level on SMB connector Input threshold level adjustable -4 volts to +5 volts Switchable input termination: 50Ω or HiZ |
PROPAGATION DELAY | Electrical to light out: 1.2 ns, typical |
OUTPUT | 1 mW nominal optical fiber-coupled power 850 nm, 1310 nm or 1550 nm nominal wavelength versions FC, FC-APC Pigtail or ST connector |
BANDWIDTH | DC to 180 MHz repetition rate |
RISETIME | Optical out: < 250 ps, 20 to 80% |
JITTER | < 12 ps RMS, typical |
OPERATING TEMPERATURE | 0 to 60°C; extended MIL/COTS ranges available |
CALIBRATION INTERVAL | One year |
POWER | +12 volts at 300 mA, nominal J12 Universal Wall-Plug Adapter recommended |
CONNECTORS | Gold plated SMB electrical logic input ST, FC or FC-APC Pigtail optical output receptacle Front panel test jack for threshold measurement 2.1 mm X 5.5 mm barrel power connector |
INDICATORS | LED: Amber power |
PACKAGING | 3.3" (L) x 2.1" (W) x 0.9" (H) extruded anodized aluminum enclosure |
J724-1: 850 nm single-channel compact buffered electrical-to-fiberoptic converter with ST connectorization
J724-3: 1310 nm single-channel compact buffered electrical-to-fiberoptic converter with ST connectorization
J724-5: 1550 nm single-channel compact buffered electrical-to-fiberoptic converter with ST connectorization
J724-11: 850 nm single-channel compact buffered electrical-to-fiberoptic converter with FC connectorization
J724-13: 1310 nm single-channel compact buffered electrical-to-fiberoptic converter with FC connectorization
J724-15: 1550 nm single-channel compact buffered electrical-to-fiberoptic converter with FC connectorization
J724-25: 1550 nm single-channel compact buffered electrical-to-fiberoptic converter with Pigtail FC-APC connectorization