National Instruments
National Instruments GPIB-120A
Bus Expander / Isolator
GPIB (IEEE 488) Schnittstellentyp
GPIB-Bus-Extender / Signalverstärker Funktion
2 (Ein Eingangs- und ein Ausgangsport) Anzahl der GPIB-Ports
Bis zu 20 Meter mit Standard-GPIB-Kabel Maximale Kabellänge
IEEE 488.1, IEEE 488.2 Kompatible Standards

| Attribut | Wert |
|---|---|
| Schnittstellentyp | GPIB (IEEE 488) |
| Funktion | GPIB-Bus-Extender / Signalverstärker |
| Anzahl der GPIB-Ports | 2 (Ein Eingangs- und ein Ausgangsport) |
| Maximale Kabellänge | Bis zu 20 Meter mit Standard-GPIB-Kabel |
| Kompatible Standards | IEEE 488.1, IEEE 488.2 |
| Maximale Anzahl der Geräte | Bis zu 14 zusätzliche GPIB-Geräte |
| Betriebsspannung | Stromversorgung über GPIB-Bus (keine externe Stromversorgung erforderlich) |
| Betriebstemperatur | 0 °C bis 55 °C |
| Lagertemperatur | -20 °C bis 70 °C |
| Abmessungen | Kompaktes Design, geeignet für den Einsatz in Messlaboren und industriellen Umgebungen |
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




