Contemporary Research TD960801-0MC - Manual (Page 14)

TD960801-0MC
10
Terminators are required at the ends of trunk cables. If the
EXTEND-A-BUS is located at the end of a trunk and no
terminator is present, a discrete resistor terminator (121 ohms)
can be connected under the screw terminals for CAN_H and
CAN_L.
Refer to Figure 2-5 for wiring details.
1 V- black
2 CAN_L blue
3 drain bare
4 CAN_H white
5 V+ red
Network Connector (Female Contacts)
1 2 3 4 5
Device Connector (Male Contacts)
Figure 2-5. CAN Port Connector Assignments
2.5.2 CAN Port Data Rates
Several data rates can be selected by a rotary switch as shown
in figure 2-6. Switch positions are labeled A, S, 125, 250, 500.
A and S are used to implement autobauding which will be
discussed later. The remaining positions determine a fixed data
rate in units of kbps. Therefore, the lowest rate is 125 kbps and
the highest is 500 kbps. The data rate switch is only read upon
power up; so to change settings, the switch position should be
changed and the power cycled to the EXTEND-A-BUS. A
clockwise rotation increases the data rate setting.