GPIB Expansions and Extensions

GPIB fibre optics extender model 4897

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Burst the limits of GPIB!

With these extenders and expanders you can pass the maximum distance of 20 m established by the GPIB standard, using fibre optics or copper cables. As an option you can also opto-isolate the bus sections from each other. And you can expand the maximum number of bus devices of 15 with these boxes.

GPIB expander/isolator: Model 4860/4862

• 20 m additional bus distance.
• 14 additional instrumente at the bus.
• 670 kB/s GPIB throughput. Signal propagation all - 80 ns typical, 180 ns maximum.
• Model 4860: Full galvanic bus isolation up to 2000 V.
• Transparent, no GPIB address: No special software required.

GPIB extender, fibre optics up to 5 km: Model 4897, 4897L

• Extends the distance of GPIB
• ...up to 200 m with copper cable,
• ...7 km with ST fibre 1300 nm or
• ...15 km SC fibre 1300 nm (model 4897L).
• Transparent for all GPIB commands.
• Galvanic isolation through fibre optics transmission. Using copper cable: Isolation up to 1500 VDC.
• Throughput up to 660 kB/s, at 5 km up to 250 kB/s. Buffered/unbuffered.
• Robust desktop box.

GPIB controlled bus switch: Model 4842

• Software controlled GPIB switch 1-to-2 or 1-to-3.
• Up to three PCs can access one GPIB instrument ("multiplexer") or...
• one PC can access and controll 3 GPIB systems.
• Switching via GPIB commands.
• High data rate; 50 ns handshake delay.