JLG 1350SJP Service Manual - Manual (Page 484)

SECTION 6 - JLG CONTROL SYSTEM
6-108 – JLG Lift – 3121142
6.20 CANBUS TROUBLESHOOTING
The PLATFORM MODULE and the CHASSIS MODULE have ”Ter-
minator Resistors” located inside the modules, these resistors
squelch high speed signal reflections in the CANbus transmis-
sion lines. The value of the terminators is determined by wire
properties, this includes the type of insulation and geometry,
combined to determine the perfect value for bus termination.
Improper values or missing terminators allow bus ringing. A
complete CANbus circuit (wired in parallel) is approximately
60 Ohms at the ”T” fitting inside the Ground Station or at the
Boom Length & Angle Module. Each individual circuit from
their respective Module should read approximately 120 Ohm.
For CANbus connections, refer to Figure 6-25., Figure 6-26.,
Figure 6-27., Figure 6-28., Figure 6-29., and Figure 6-30.
Figure 6-25. CANbus Connections Diagram