JLG 1100S Service Manual - Manual (Page 380)

SECTION 6 - JLG CONTROL SYSTEM
6-106 – JLG Lift – 3121256
6.20 CANBUS TROUBLESHOOTING
The PLATFORM MODULE and the CHASSIS MODULE
have ”Terminator Resistors” located inside the modules,
these resistors squelch high speed signal reflections in
the CANbus transmission lines. The value of the termina-
tors 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 CAN-
bus 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-
25., Figure 6-26., Figure 6-27., and Figure 6-28.
Figure 6-25. CANbus Connections - Sheet 1 of 4
PLATFORM MODULE
CANbus Link
Platform Module J7 Plug
Platform Plug Ground Main Terminal Box Plug