Specifications

87Digital Key BX, Digital 400 & Digital 1000 Administration, Installation & Maintenance
The SynopSys system uses the seven telephone models
of the DIGITAL family of telephone sets. The DIGITAL
telephone sets support 36 button Add-on units, which
provide DSS one-touch dialing and Busy Lamp Field
indication.
Considerations for planning station location and
comprehensive installation instructions and procedures
for the DIGITAL KEY BX, DIGITAL 400, and
DIGITAL 1000 systems are provided in the DIGITAL
Installation manual and the DIGITAL 1000 addendum.
For the SynopSys system, theses instructions are in
the SynopSys Installation manual.
MAINTENANCE
Corrective maintenance consists of fault detection and
isolation, and replacement of the faulty equipment
(Avanti station, card, power supply, etc.). Fault detection
equipment is built-in, and replacement of faulty parts
is performed, in most cases, without disruption to
system operation. No preventative maintenance is
required. When a fault is detected, the system generates
a warning which is categorized either as a major alarm,
a minor alarm, or a diagnostic message, depending on
the severity of the fault. All alarms and messages are
stored in the system error message history file to be
examined at any time by maintenance personnel. The
warnings may also be sent to the printer used for Station
Message Detail Recording, or to a maintenance terminal
or PC. In addition, all major and minor alarms are
displayed at the attendant console. The alarm message
alone often provides the necessary information to isolate
the faulty unit.
If a fault capable of disrupting system operation is
detected, the system may be programmed to
automatically dial the Service Center, via the modem,
and transmit the most recently generated alarms. From
the Service Center, the system's history file can be
viewed and certain maintenance functions, such as
system reset, can be performed. Sometimes the fault
can be corrected without a technician visiting the
customer site.
Software upgrades: When upgrades of the Avanti
telephone software are developed, the software of the
Avanti 3025, Avanti 3020F, Avanti 3020H, Avanti
3015DF, Avanti 3015DH, and Avanti 3015H
telephones can be upgraded from a remote site via a
modem or locally using a PC connected to the MPD
card (see Software upgrades under System Features in
Section 7 DIGITAL Family Features).
Redundancy: The DIGITAL 1000 system has the
options of installing redundant hardware to enable
continued operation of the system when hardware fails
(see Redundancy under System Features in Section 7
DIGITAL Family Features).
MAINTENANCE INFORMATION
The DIGITAL systems are equipped with a
Maintenance Information utility that enables display
of the technical details (such as directory number, port
number, port type, bus number, terminal number on
the bus, and status) of each port in the system or each
card in the system cabinet.
MAINTENANCE TESTING
The DIGITAL 400 and DIGITAL 1000 maintenance
testing utility provides versatile testing of system
resources.
The following types of interactive and daily tests can
be run:
Interactive testing of a specific card port or resource
Interactive testing of all lines or resources on
a card
Daily system testing: Every day at a preset time,
a series of tests is performed.