User's Manual

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Appendix D – Click! 112/114 User Reference Guide
The Click! 112 and 114 are 2-channel and 4-channel contact output rack cards.
Each contact output is electrically isolated and are normally open. When the cards
receive the appropriate serial messages from SmartSensors, they will close the
contact outputs. The contact closure is used to pull-down the 24VDC reference
provided by standard traffic controllers and traffic cabinet bus interface units. This
type of digital I/O is standard in NEMA TS1, NEMA TS2, 170, 2070, and ATC traffic
cabinet systems.
When used with SmartSensor Matrix the rack cards usually receive broadcast
detection call messages. However, the rack card protocol also supports individual
addressing. Individual addressing is used by the rack card tools in SSMMX.
The rack cards are software and hardware configurable. Hardware configuration is
performed using switches on the side of the card (see Figure D.1).
Switch Name
Description
Card Labels
Mode Switch
Push button on faceplate
S1
Contact Type Switch Channel 1 & 2
1-switch DIP switch
S2
Contact Type Switch Channel 3 & 4
1-switch DIP switch
S3
Channel Group / Input Mapping Switch
8-switch DIP switch
S4
Baud Rate Switch
8-switch DIP switch
S5
Figure D.1 – Hardware Configuration Switches
Figure D.2 illustrates the 4 possible DIP switch modules on the side of the card. To
turn a switch on, push it up. To turn a switch off, push it down. In this example, only
switches 1 and 4 of S5 are on.
Figure D.2 – DIP Switches on the side of the card
Note
On power up, the rack cards will go into failsafe mode if they are not receiving
detection call messages from SmartSensor Matrix. So even though the
contact outputs are normally open, they will be closed when an active
connection from SmartSensor Matrix (or other source device) does not exist.