CYLINDER & SEAL GP-STICK 2898030 - Caterpillar

VALIGN="MIDDLE" ALIGN="CENTER">Parameter    Value    
Maximum Cable Length    
305 m (1000 ft)    
Maximum Conductor to Conductor Cable Capacitance (1)     .022 µF    
Maximum Cable Resistance for a single Conductor (2)     39 Ω    
( 1 ) To measure cable capacitance, disconnect all devices from the network at the device connection such that the network wires are open between the two conductors. Measure the capacitance between the two wires.
( 2 ) To measure cable resistance, disconnect all devices from the network at the device connection such that the network wires are open between the two conductors. Short the wires at the PL1000T Communications ECM device connection. Measure the resistance between the two wires at all other device connections. For the maximum reading taken, divide the resistance measurement by 2 and compare to the value shown.Additional RS-485 connection information to consider:
A terminating resistor must be connected to both ends of the J1939 communications bus for proper operation of the network.
16 AWG or 18 AWG common harness wire should be used for wiring the J1939 network as a twisted pair with 1 full twist per inch.
Use good wire routing and wire securing practices to avoid damage to the cable.
Run cable away from high power and high frequency