User's Manual

36
No load
S2 S3 S5
On
Off
1 2 4
3
5 6 7 8
1
2 3
4
5 6 7 8
Contact Type Switches Baud Rate Switches
Channel
1 & 2
Channel
3 & 4
Bus
1
Bus
2
No load
On a 2-channel card: selects Matrix channels 3 & 4 for ouput
Channel
Group
S4
Input Mapping Switches
Figure 2.10 – Position of S4 – Input Mapping Switches to Select Matrix channels 3 & 4
No load
S2 S3 S5
On
Off
1
2
43 5 6 7 8
1
2 3
4
5 6 7 8
Contact Type Switches Baud Rate Switches
Channel
1 & 2
Channel
3 & 4
Bus
1
Bus
2
No load
Makes channel group selection software configurable
Channel
Group
S4
Input Mapping Switches
2
Figure 2.11 – Position of S4 – Input Mapping Switches to Make Channel Group Software Configurable
At a maximum each sensor uses one 4-channel card or two 2-channel cards for
normal operations. This means that a standard 4-approach stop bar detection
system can be accommodated by a 16-channel detector rack. Use the following
steps to setup the contact closure rack cards for each sensor.
1. Plug all the cards into the detector rack. This will provide power.
Steps 2-5 are used to connect the isolated detection call links used for real-time
traffic control.
2. Run a long 6-foot patch cord from the Click! 222 RS-485 A port to a Bus 1
port on the appropriate rack card.
3. Run a long 6-foot patch cord from the Click! 222 RS-485 B port to a Bus 1
port on another rack card.
4. If using 2-channel rack cards, use a short 8-inch patch cord to share BUS 1
between cards dedicated to the same sensor. Also, configure one card to
use Matrix channels 1 & 2 and configure the other card to use Matrix
channels 3 & 4.
5. If you have more than 2 sensors in your system, reuse steps 2-4 to connect
Bus 1 for all remaining rack cards.