Technical data

Hardware Release Notes
B.1 ALPHAbook 1 (Alpha Only)
B.1.5 PCMCIA Bus Support
The following notes apply to the PCMCIA bus.
Supported PCMCIA Cards
OpenVMS support for the PCMCIA bus on the ALPHAbook 1 system is limited to
the following cards:
• 3Com EtherLink III (3C589C)
• Megahertz 28.8 FAX/Modem (XJ2288)
• Apex Data ClipperCom V.34 International Data/FAX Modem (011–20811)
The OpenVMS operating system can configure a maximum of one Ethernet card
and one FAX/Modem card.
Hot Swapping PCMCIA Cards Not Supported
Hot swapping (removing and replacing cards while the computer is running)
PCMCIA cards is not supported. If a PCMCIA card is inserted or removed while
the OpenVMS operating system is running, it could result in a system hang
(the system is unresponsive) or a system crash. A future release of the OpenVMS
operating system is expected to include support for hot swapping PCMCIA cards.
PCMCIA Modem Setting
The highest recommended baud rate for the Apex Data ClipperCom V.34
International Data/FAX Modem card is 9600. For access to the modem, Compaq
recommends that you use the following DCL and modem commands:
$ SET TERM/PERM/SPEED=9600/ALT/MODEM TTB0:
$ SET HOST/DTE TTB0:
at*ncxx
at&k6
at&s1
at\g1
at\q1
at\x1)
(Note that xx represents the country number; for example, the United States
is 22. See the Apex Data ClipperCom V.34 documentation for a list of country
numbers.)
The highest recommended baud rate for the Megahertz 28.8 FAX/Modem card is
9600. For access to the modem, Compaq recommends that you use the following
DCL and modem commands:
$ SET TERM/PERM/SPEED=9600/ALT/MODEM TTB0:
$ SET HOST/DTE TTB0:
at&s1
at&r1
Audio Feedback Supported on PCMCIA Modem
Audio feedback is available for the telephone call status.
PCMCIA FAX Support
The Apex Data ClipperCom V.34 International Data/FAX Modem works correctly
with the PMDF FAX and Gold-FAX software to transmit data.
The Megahertz 28.8 FAX/Modem works correctly with the PMDF FAX software
to send and receive data with line speeds up to 19.2 baud. However, if you are
using Gold-FAX software to send a FAX, the maximum baud rate allowed with a
Megahertz 28.8 FAX/Modem card is 9600 baud.
B–4 Hardware Release Notes