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| Product CN-8311 - 1 port 10Base-FL with ST/SMA Connectors | |
| Overview The CodeNet-8311 is a fiber optic plug-in module for the Code-net MultiStar/3Com MultiConnect active star Ethernet system. The unit provides an optical interface which fully complies with the IEEE 802.3 (Section 9.9) specifications for a vendor independent fiber optic inter-repeater link (FOIRL). The CodeNet-8311 may be used to provide a point~to-point optical link between two MultiStar/MultiConnect stars, or between a MultiStar/MultiConnect and any fiber optic media access units (FOMAUs) which comply with IEEE 802.3 (Section 9.9) specifications such as Codenoll's CodeNet-8381 FOMAU. Full compatibility of the optical interface allows the user to add MultiStar/MultiConnect repeaters to existing optical networks using equipment from multiple vendors. The CodeNet-8311 has front panel status indicators and manual reset/partition controls for quick diagnosis and resolution of network problems. An on-board switch allows selection of either high or low optical transmit power allowing the unit to provide Ethernet links up to 4.5 km (depending on total network propagation delay and flux budget). The CodeNet-8311 automatically partitions itself in the event of a fault from the error-free segments, and automatically reconnects when the fault condition no longer exists. When a segment is autopartitioned, its partition LED glows continuously. Once a segment is autopartitioned, the segment is sampled every 400 msec by transmitting a 523-bit packet called a "bleep." If the "bleep" packet is transmitted successfully without a collision, the segment is reconnected. The partition LED then begins flashing, indicating that the problem has been resolved. The reset switch on the front panel clears the LED and does not affect the segment's operation. |
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Specifications Network Standards: IEEE 802.3 CSMA/CD Ethernet 10 Mbps baseband, Section 9.9 Fiber Optic Repeater Link (FOIRL) Electrical Interface: Module for Codenoll's MultiStar or 3Com MulMulti-Connecthernet active star Optical Interface: Duplex fiber optic cable with bayonet type ST connectors standard; screw-on SMA connectors optional (FOIRL standard is SMA). Partition Switch: Manual Partition Reset Manual Partition Clear Autopartition indicator Internal Option Switches (factory settings in bold): Optical Power (Hi/Lo) Jabber Reset (Auto/Manual) SQESQE-Heartbeatn/Off) Optics: Transmitter CodeLED high radiance edge-emitting Aluminum Galium Arsenide (AlGaAs) Light Emitting Diode (LED) Receiver Silicon PIN-type photodiode Optical Wavelength 830 nm +/- 2O nm, peak Cable Sizes 50/125, 62.5/125, 85/125 or 100/140 µm duplex, multimode, graded index. Physical: Board Size 4.7 in W x 12.0 in L (12cm x 30cm) Operating Environment 0°C to + 55°C; 10 to 90% humidity (non-condensing) Power 500mA @ + 5V; 40mA @ + 12 V, typical Weight 8 oz (226 grams) Optical Specifications *1: Peak Power Output Into: 62.5 p.m core fiber: -12 dBm 100 ~ core fiber: -11.5 dBm 50 Im' re fiber: -15.5 dBm Receiver Sensitivity: -27 dBm Optical Flux Budget Into 62.5 µm core fiber: 15 dB 100 µm core fiber: 15.5 dB 50 µm core fiber: 11.5 dB Dynamic Range: 18 dB Maximum Cable Length: 4500 meters *2 *1 Peak power measured at 25°C, 50% duty cycle. Hi power [factory default] Lo Power reduces power by approximately 3 dBm and distance to approximately 3000 m. *2 Limited by IEEE 802.3 roundtrip delay time. Flux budget permitting Diagnostic Indicators: Activity -- Yellow Link Fault --Yellow Partition -- Red |
4318 | 7195 | 7198 | 7464 | 7565 | 7814 | 7815 | 7868 | 7894 | 7895 | 7915 | 7995 | 8301 | 8311 | 8341B | 8345 | 8346 | 8391 M | 8391 M10 | Active
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