Technician A says that a J1939 Hi-bus twisted pair is usually shielded. Technician B says that the tin foil wrap found in some data buses provides a EMI protective shield. Who is right?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Both Technician A and Technician B are correct. The J1939 Hi-bus twisted pair is often shielded to protect against electromagnetic interference (EMI), and the tin foil wrap found in some data buses also serves as an EMI protective shield.

Technician a Says That a J1939 Hi-Bus Twisted Pair Is