Engenius INTERCOM DATASHEET

10/07/99

InterCom

Multi-Purpose Vehicle
Interface Adapter for
Parallel Connection to PC

EnGenius’ InterCom is a flexible solution that
can provide simultaneous access to the vehicle
network as well as digital and analog
input/output. (Custom protocols can also be
supported.) InterCom interfaces to a PC via the
parallel port.

InterCom’s unique design consists of a set of
Physical Interface Modules (PIMs) that plug into
its base platform. Each PIM (standard or custom
designed) contains the specific interface circuits
that allow InterCom to connect to external
devices. The PIMs and the base platform can all
function simultaneously. This multi-purpose
vehicle interface adapter provides a powerful,
yet flexible, solution to meet a wide range of
needs. InterCom is packaged in a 5.75" x 3.5" x

1.75" plastic enclosure.

Interface Capabilities

InterCom is capable of supporting SAE J1850
PWM, ISO 9141, ISO 9141-2 and others
(including custom protocols).

Applications

Base Platform Features

5 Parallel port interface to PC
5 1 Physical Interface Module (PIM) slot
5 8 channel 10 bit A/D inputs (4 on the main

connector, 4 are PIM accessible)

5 1 D/A output
5 4 digital inputs (1 on main connector, 3 are PIM

accessible)

5 4 digital outputs (1 on main connector, 3 are

PIM accessible)

5 20 MHz 80C196KC microcontroller
5 9–18 VDC input required (300 ma nominal,

1000 ma maximum)

5 32K RAM
5 128K Flash ROM

Optional Physical Interface Modules

5 SAE J1850 PWM (using an HBCC)
5 ISO 9141

5 Engineering development or in-vehicle use
5 Protocol translation
5 Network monitoring
5 Module validation, test fixtures
5 Diagnostics
5 Light and medium duty vehicles

EnGenius • 31077 Schoolcraft Rd. • Livonia, MI 48150- 2029 • [phone] • www.engenius.com

10/07/99

Technical Data for InterCom Physical Interface Modules

SAE J1850 PWM

5 Uses Ford/Motorola Hosted Bus Controller

Chip (HBCC)

5 10.4K, 20.8K, 41.6K, and 83.3K baud

supported

5 Selectable line termination
5 Message timestamping
5 Configurable inter-message times
5 Configurable timed interval transmission of

up to 10 user-defined messages

5 Trigger pulse output on message received

or transmitted

5 Trigger input to initiate message

transmission

ISO 9141

5 K and L line support
5 5–1M baud supported
5 Selectable line termination
5 Byte stream or ISO 9141-2 message modes

with timestamping

5 Configurable inter-byte and inter-message

times

5 Configurable timed interval transmission of

up to 10 user-defined messages

5 Trigger pulse output on message received

or transmitted

5 Trigger input to initiate message

transmission

5 Jumper selectable ISO 9141 circuit voltage

(on-board or external)

5 Software configurable loop back

EnGenius • 31077 Schoolcraft Rd. • Livonia, MI 48150- 2029 • [phone] • www.engenius.com