™ Extender488/F ® IEEE 488 Bus Extender via Fiber Optic ™ the smart approach to instrumentation Features • Exceeds the 20 meter cable limitation imposed by the IEEE standard by eco- nomically extending the bus up to 1,000 meters via fiber-optic link • Fiber-optic extenders electrically iso- late instruments from the computer • Expands the number of devices al- lowed on the bus from 15 to 28 • Operates transparently to the IEEE controller; requires no programming changes for most applications ™ The Extender488/F provides an eco- nomical solution to the 60 ft. (20 m) distance limitation of the IEEE bus. Us- ing high-speed 115.2K baud serial data Extender488/F enables instruments to be located up to 4,000 feet from host IEEE controller transmission, a pair of extenders can stretch the bus up to 4,000 ft. (1,000 meters). Extender488/F uses duplex Extender488/F System Example fiber-optic data transmission, which pro- vides high electrical isolation as well as Up to 13 IEEE devices high noise immunity. SCSI488/S DAC488HR/2 Filter488 Extender488/F operates transparently to the IEEE controller, requiring no special Extender488/F programming, with the exception of Par- Extender488/F allel Poll. Parallel Polls must be performed IEEE twice due to the speed specification of the IEEE bus. IEEE controller Fiber-optic Up to 14 IEEE devices link The number of devices that can be con- SCSI488/S trolled on the bus is doubled by the exten- Up to 1000 meters DAC488HR/2 ders. Both the local and remote bus can Filter488 have up to 14 devices each, in addition to the extenders. Extender488/F IEEE Extender488/F is packaged in a rugged all Extender488/F metal case, convenient for bench-top and rack-mount applications. Specifications Ordering Information Indicators: LEDs for Talk, Listen, SRQ, Error and IEEE Connector: Standard IEEE 488 connector with Description Part No. metric studs Power IEEE bus extender via fiber-optic Average Maximum Data Transfer Rate: Power: 105 to 125 VAC, or 210 to 250 VAC, 50/60 (two required) Extender488/F 4 Kbytes/s Hz, 10 VA Fiber-optic cable with mating Extender488/F Serial Fiber Optic Cable: Exit Numeri- Environment: 0˚ to 50˚C; 0 to 95% RH, non-condensing connectors (specify length, Controls: Power switch and baud rate selector cal Aperture, 0.3 typ Optical fiber core diameter, 100 x, from 10 to 4,000 ft.) CA-24-X μm glass fiber. Outside cladding diameter, 140 μm. Dimensions: 138 mm W x 190 mm D x 68 mm H Shielded IEEE 488 cable, 6 ft. CA-7-3 Maximum attenuation, 6 dB/km. Minimum band- (5.4” x 7.5” x 2.7”) width, 40 MHz @ 1 km and 820 nm. Connectors, Weight: 0.96 kg (2.11 lbs) SMA-905. QUICK FIND For up-to-date information on products, and to order online, visit the IOtech Web site and enter the corre- sponding page number in the QUICK FIND field. SHOP ON LINE QUICK FIND tel: 440-439-4091 fax: 440-439-4093 sales@iotech.com www.iotech.com 286 IEEE 488 Interfaces & Support Products