Specifications

2nd Edition, March 1989
The information in this document is subject to change without notice and should not
be construed as a commitment by Digital Equipment Corporation. Digital Equipment
Corporation assumes no responsibility for any errors that may appear in this document.
The software described in this document is furnished under a license and may be used or
copied only in accordance with the terms of such license.
No responsibility is assumed for the use or reliability of software on equipment that is not
supplied by Digital Equipment Corporation or its affiliated companies.
Copyright ©1989 by Digital Equipment Corporation.
All Rights Reserved.
Printed in U.S.A.
The following are trademarks of Digital Equipment Corporation:
DEC DECwriter Q-bus
DEC/CMS DIBOL RSTS
DEC/MMS EduSystem RSX
DECnet IAS UNIBUS
DECsystem-10 MASSBUS VAX
DECSYSTEM-20 MSCP VAXcluster
DECUS PDP VMS
DECvoice PDT
Intel and Subscriber Line Datalink are trademarks of the Intel Corporation.
AT&T and Touch-Tone are trademarks of the American Telephone & Telegraph Company.
FCC NOTICE: The equipment described in this manual generates, uses, and may emit
radio frequency energy. The equipment has been type tested and found to comply with
the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC
Rules, which are designed to provide reasonable protection against such radio frequency
interference when operated in a commercial environment. Operation of this equipment in
a residential area may cause interference, in which case the user at his own expense may
be required to take measures to correct the interference.