National Instruments
National Instruments GPIB-120A
Bus Expander / Isolator
GPIB (IEEE 488) Interfejs
2 Liczba portów GPIB
Izolator magistrali GPIB Funkcja
1,5 MB/s Maksymalna prędkość transmisji danych
Tak Izolacja galwaniczna

| Atrybut | Wartość |
|---|---|
| Interfejs | GPIB (IEEE 488) |
| Liczba portów GPIB | 2 |
| Funkcja | Izolator magistrali GPIB |
| Maksymalna prędkość transmisji danych | 1,5 MB/s |
| Izolacja galwaniczna | Tak |
| Napięcie izolacji | 500 V DC |
| Zasilanie | Zasilanie z magistrali GPIB lub zewnętrzne |
| Zgodność ze standardem | IEEE 488.1, IEEE 488.2 |
| Temperatura pracy | 0°C do 55°C |
| Wymiary | 127 mm x 76 mm x 38 mm |
National Instruments GPIB-120A Options:
- GPIB-120A - Single Rack-Mount Kit - Single Rack-Mount Kit for GPIB-120A
- GPIB-120A - Dual Rack-Mount Kit - Dual Rack-Mount Kit for GPIB-120A
- GPIB-120A - Type X1 (1 m) - Type X1 single-shielded GPIB cable, 1 m
- GPIB-120A - Type X1 (2 m) - Type X1 single-shielded GPIB cable, 2 m
- GPIB-120A - Type X1 (4 m) - Type X1 single-shielded GPIB cable, 4 m
- GPIB-120A - Type X2 (1 m) - Type X2 double-shielded GPIB cable, 1 m
- GPIB-120A - Type X2 (2 m) - Type X2 double-shielded GPIB cable, 2 m
- GPIB-120A - Type X2 (4 m) - Type X2 double-shielded GPIB cable, 4 m
| Model | GPIB-120A |
|---|
The National Instruments GPIB-120A is a GPIB expander / isolator. The IEEE 488.1 standard prescribes a maximum of 15 electrical device interface loads in a GPI system. The National Instruments GPIB-120A increases the maximum number of GPIB system devices from 15 to 28. The GPIB-120A is also useful in test and measurement systems because it provides an electrically isolated interface to one or more devices. The GPIB-120A is software transparent; you do not need to rewrite your application software.
Features of the NI GPIB-120A include:
- Expands the number of GPIB devices to 28
- Bidirectional expansion - Controllers, Talkers, and Listeners can exist on either side of the expansion
- 400 Vrms electrical isolation between GPIB systems for 1 minute
- Software transpa €“ no software modifications required
- Signal buffering extends the maximum GPIB cable limit to 40 m (device load every 2 m of bus cable)
- Built-in 120 or 240 VAC power supply
- Meets FCC Class A electromagnetic noise emission requirements
- UL listed




