Serial Interfaces
for RS-485 and RS-232
RS-485 and RS-232 Interfaces
Specifications
Power Requirement (from ISA, PCI, PC Card, or PXI channel)
+5 VDC
+12 VDC
Typical
Maximum
Typical
Maximum
Current
Current
Current
Current
350 mA
700 mA
150 mA
800 mA
1.0 A
50 mA
70 mA
100 mA
500 mA
400 mA
500 mA
100 mA
125 mA
150 mA
500 mA
350 mA
700 mA
1.1 A
400 mA
500 mA
800 mA
1.0 A
90 mA
95 mA
40 mA
60 mA
60 mA
390 mA
600 mA
220 mA
300 mA
260 mA
340 mA
160 mA
280 mA
750 mA
1.3 A
250 mA
1.3 A
1.5 A
100 mA
150 mA
180 mA
1.0 A
650 mA
750 mA
150 mA
200 mA
250 mA
1.0 mA
750 mA
1.3 A
2.0 A
650 mA
750 mA
1.3 A
1.5 A
100 mA
110 mA
60 mA
75 mA
140 mA
510 mA
780 mA
260 mA
360 mA
340 mA
450 mA
200 mA
320 mA
–
–
80 mA
–
–
20 mA
40 mA
80 mA
–
–
–
20 mA
40 mA
80 mA
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
750 mA
–
–
200 mA
400 mA
800 mA
–
–
–
200 mA
400 mA
800 mA
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Signal Compatibility
Noise Emissions
(FCC Class Verified)
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
B
B
A
A
B
B
A
A
Model
PCI
PCI-485/2
PCI-485/4
PCI-485/8
PCI-485I/2
PCI-485I/4
PCI-232/2
PCI-232/4
PCI-232/8
PCI-232/16
PCI-232I/2
PCI-232I/4
PXI
PXI-8420/2
PXI-8420/4
PXI-8420/8
PXI-8420/16
PXI-8421/2
PXI-8421/4
PXI-8421/8
PXI-8422/2
PXI-8422/4
PXI-8423/2
PXI-8423/4
PCMCIA
PCMCIA-485
PCMCIA-485/2
PCMCIA-232
PCMCIA-232/2
PCMCIA-232/4
ISA
AT-485/2
AT-485/4
AT-485I/2
AT-485I/4
AT-232/2
AT-232/4
AT-232I/2
AT-232I/4
1
I/O Connectors
DB-9 male
10-position jack
SCSI 68-pin interface
DB-9 male
10-position jack
DB-9 male
10-position jack
SCSI 68-pin female
SCSI 100-pin female
DB-9 male
10-position jack
DB-9 male
10-position jack
SCSI 68-pin male
SCSI 100-pin female
DB-9 male
10-position jack
SCSI 68-pin female
DB-9 male
10-position jack
DB-9 male
10-position jack
DB-9 male
DB-9 male
DB-9 male
DB-9 male
DB-9 male
DB-9 male
10-position jack
DB-9 male
10-position jack
DB-9 male
10-position jack
DB-9 male
10-position jack
2000 V
Optical
Isolation
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
All Signals
–
–
–
–
–
Ports 1-8
–
–
Ports 1-8
–
–
–
–
–
–
–
–
–
1
–
–
–
–
–
–
only RXD, TXD,
GND, RTS, and CTS
–
–
–
Ports 9-16
–
–
–
Ports 9-16
–
–
–
–
–
Serial Interfaces
Ports 3-4 include all signals but RI
Dimensions
AT interfaces ...............................................
PCI interfaces..............................................
PCMCIA interfaces.......................................
PXI .............................................................
10.7 by 16.5 cm (4.2 by 6.5 in.)
10.7 by 17.5 cm (4.2 by 6.9 in.)
Type II PC Card
16.0 by 10.0 cm (6.3 by 3.9 in.)
(not including connectors)
Storage Environment
Ambient temperature.................................. -40 to 125 °C
Ambient temperature (Ethernet).................. -55 to 85 °C
Relative humidity ........................................ 5 to 90%, noncondensing
Electrostatic Discharge Protection by MIL-883C, Section 3015C
Nonisolated devices................................ 1500 V
Isolated devices ...................................... 15,000 V
Operating Environment
Ambient temperature.................................. 0 to 70 °C
Ambient temperature (Ethernet).................. -40 to 70 °C
Relative humidity ........................................ 10 to 90%, noncondensing
National Instruments
Tel: (512) 794-0100 • Fax: (512) 683-9300 • info@ni.com • ni.com
823
NI [ NATIONAL INSTRUMENTS CORPORATION ]
