LPCI-3488A Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – High-Performance IEEE-488 GPIB Interface for USB/PCI

USB/LPCI-3488A
High-Performance IEEE-488 GPIB Interface for USB/PCI
USB-3488A
LPCI-3488A
Features
■ Fully compatible with the IEEE-488 standard
■ Supports a 32-bit 3.3 V or 5 V PCI bus
■ Up to 1.5 MB/s data transfer rates
■ Built-in FIFO for read/write operations
■ Provides APIs compatible with NI-488.2 driver software*
■ Supports industrial-standard VISA library
■ Interactive utility for testing and diagnostics
■ Easy GPIB connectively for laptop computer (USB-3488A)
■ Plug and Play interface; No GPIB cable required for
instrument connection (USB-3488A)
■ 2 M USB cable attached (USB-3488A)
■ USB 2.0 compatible (USB-3488A)
■ No external power required (USB-3488A)
■ Operating Systems
• Supports Windows 7/Vista/2000/XP/Server 2003
■ Recommended Software
• VB/VC++/BCB
• LabVIEW*
• LabWindow/CVI*
5-1 _{www.adlinktech.com}
Introduction
The IEEE-488 standard, also known as GPIB, is a bus interface that connects instruments with a computer to
form an ATE system. GPIB was initially developed by Hewlett Packard and was recognized as an IEEE
standard in 1978. The IEEE-488.1-1978 standard defines the convention for electrical and mechanical bus
characteristics, as well as the state diagram for each bus function. In 1987, another standard was derived
from the original IEEE-488.1-1978 and known as IEEE-488.2-1978. It was introduced to define data formats,
common commands, and control protocols for instruments. In general, IEEE-488.1 defines hardware
specifications, and IEEE-488.2 defines software specifications. The IEEE-488 standard has been widely
accepted by instrument vendors over the past few decades. Today, GPIB is still the most popular interface
between computer and instruments.
EOI
IFC
SRQ
ATN
REN
DAV
NRFD
NDAC
DI01-8
EOI
IFC
SRQ
ATN
REN
DAV
NRFD
NDAC
DI01-8
Instrument A
Able to Talk,
Listen and Control
ex: Computer
Instrument B
Able to Talk
and to Listen
ex: Oscilloscoae
Instrument C
Able to Listen
ex: Function
Generator
Instrument A
Able to Talk,
Listen and Control
ex: Computer
Instrument B
Able to Talk
Instrument C
and to Listen
Able to Listen
Handshake
and ^ed^x:a^Ot^sa^cils^loi^sg^con^aeals
on
the
GPIB
ex: Function
bus Generator
Handshake and data signals on the GPIB bus
5system
Management
lines
3 handshake
lines
8 data lines
5system
Management
lines
3 handshake
lines
8 data lines
Linear instrument connection
Star instrument connection
ADLINK's USB-3488A and LPCI-3488A controller interface cards are fully compatible with the
IEEE-488.2 instrumentation control and communication standard and are capable of controlling up to
14 stand-alone instruments via IEEE-488 cables. The USB-3488A and LPCI-3488A are designed to meet
ADLINK GPIB Data Xfer Rate (Small Block Data)
ADLINK GPIB Data Xfer Rate (Large Block Data)
the requirements for high performance and maximum programming portability. The USB-3488A and
LPC¹I-⁰3⁰4⁰88A
is
developed
using
ADLINK's
intellectual
1600
property
in
FPGAs
which
incorporates
a
GPIB
controller,
Linear instrument connection
1400
Star instrument connection
provid80e0s capability, and supports a transfer rate up to 1.5 M₁₂B₀/₀s. With APIs that are compatible with NI-488.2*
driver₆₀s₀oftware and VISA support, the USB-3488A and LPC₁₀I-₀3₀488A offer the best compatibility with
your existing applications and instrument drivers
800
400
600
AD₂₀L₀INK GPIB Data Xfer Rate (Small Block Data)
A4D0L0INK GPIB Data Xfer Rate (Large Block Data)
1000
1260000
0 200 400 600 800
800
Block Size (Bytes)
1000
14000 15 30 45 60 75 90 105 120 135 150
1200
Block Size (KBytes)
600
1000
800
400
600
200
400
200
0 200 400 600 800 1000
0 15 30 45 60 75 90 105 120 135 150
Block Size (Bytes)
Block Size (KBytes)
Performance
ADLINK's expertise in PCI and PXI interface cards was leveraged when developing these newly designed
GPIB interface cards. The LPCI-3488A, which is the low-profile PCI form factor, supports both 3.3 V and 5 V PCI
buses and can be adapted to most industrial and desktop computers. A built-in FIFO is placed between the
GPIB bus and PCI controller to buffer GPIB read/write operations. This FIFO eliminates the gap between the
slow GPIB bus (~1.5 MB/s) and the fast PCI bus (132 MB/s), the maximum GPIB transfer rates of LPCI-3488A
is 1.5 MB/s, and dramatically increases overall system performance.