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Appendix E Specifications for AT Serial Hardware
Serial Hardware and Software for Windows E-10 ni.com
Four-Port AT Serial Boards (Nonisolated)
Dimensions .............................................10.67 by 16.51 cm
(4.2 by 6.5 in.)
I/O connector
1
.........................................10-position modular jack
Power Requirement
(from PC AT I/O channel)
AT-485/4 ..........................................+5 VDC 160 mA typical
200 mA maximum
AT-232/4 ..........................................+5 VDC 110 mA typical
150 mA maximum
AT-485/4 (Shared IRQ)....................+5 VDC 160 mA typical
200 mA maximum
AT-232/4 (Shared IRQ)....................+5 VDC 110 mA typical
150 mA maximum
Four-Port AT Serial Boards (Isolated)
Dimensions .............................................10.67 by 25.40 cm
(4.2 by 10.0 in.)
I/O connector
2
.........................................10-position modular jack
Isolation voltage
From Port to Port.............................3000 Vrms/60s
From Any Port to Host
Computer.........................................2000 Vrms/60s
Power Requirement
(from PC AT I/O channel)
AT-485/4 Isolated.............................+5 VDC 300 mA typical
360 mA maximum
AT-232/4 Isolated.............................+5 VDC 280 mA typical
320 mA maximum
1
The four-port AT serial board requires a cable to convert the 10-position modular jack to either DB-9 or DB-25 connectors.
2
The four-port isolated AT serial board requires cables,which are included in yourkit, to convert the 10-positionmodular jack
to a DB-9 connector. Use only the type of cables provided in your kit.