Model GMJ1939 - Graphite
Installation Guide
U L
FOR USE IN HAZARDOUS LOCATIONS:
C C
US
US
R
Class I, Division 2, Groups A, B, C, and D
LISTED
T4
IND.CONT. EQ.
E317425
GENERAL DESCRIPTION
The model GMJ1939 is a J1939 communication module designed
for use with the Graphite products. The module provides the
Graphite host device a J1939 communications port. It is built with
digital isolation to protect the Graphite host device from the J1939
bus and vice versa. It provides the ability to communicate to any
J1939 device. The GMJ1939 module has a termination resistor
built-in, and is selectable through a switch. The connector is
pluggable for easy removal of the GMJ1939 module from the
J1939 bus, without disturbing communications with other devices
on the bus.
The modules connect and communicate via proprietary USB
connection to the various Graphite devices. The Graphite devices,
equipped with serial ports as well as Ethernet port(s), allows the
system to share data with PCs, PLCs and SCADA systems. The
maximum number of modules varies for each Graphite device, see
specific model for details. Remove power from the host device
before installing or replacing any modules.
DIMENSIONS In inches (mm)
2.80 (71)
4.65
(118)
®
J1939 Module
z Configured using Crimson
z Digitally isolated J1939 port capable of communicating with
any J1939 device
z Powered and configured from Graphite host device
z Built-in termination resistor selectable through a switch
U L
C C
R
CONFIGURATION
The Graphite is configured with Windows
3 software. The software is an easy to use, graphical interface which
provides a means of configuration and commissioning of new
systems, as well as routine module re-calibration.
SAFETY SUMMARY
All safety related regulations, local codes and instructions that
appear in this document or on equipment must be observed to
ensure personal safety and to prevent damage to either the
device or equipment connected to it.
Do not use these products to replace proper safety interlocking.
No software-based device (or any other solid-state device) should
ever be designed to be responsible for the maintenance of
personnel safety or consequential equipment not equipped with
safeguards. Red Lion disclaims any responsibility for damages,
either direct or consequential, that result from the use of this
equipment in a manner not specified.
1.25 (32)
ORDERING INFORMATION
DESCRIPTION
Graphite Module, J1939 Interface
A listing of the entire Graphite family of products and accessories
can be found at www.redlion.net.
1
®
software (version 3.0 or later)
US LISTED
US LISTED
IND. CONT. EQ.
E302106
II 3 G Ex nA IIC T4 Gc
-40°C≤T
DEMKO 14 ATEX 1387X
IECEx UL 15.0035X
UL22UKEX2574X
CAUTION: Risk of Danger.
Read complete instructions prior to
installation and operation of the unit.
WARNING - EXPLOSION HAZARD - Do not disconnect
equipment unless power has been switched off or area is
known to be non-hazardous.
WARNING - EXPLOSION HAZARD - Substitution of
components may impair suitability for Class I, Division 2
Install - GMJ1939-E
Drawing No. LP0960
Revised 04/2023
≤75°C
AMB
®
compatible Crimson
PART NUMBER
GMJ19390
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