Tyco 4100U installation manual occurs, Continued on next page

Step 6. Installing LED/Switch Modules into Expansion Bays (4100U),

Continued

LED/Switch Controller Card,

(continued)

If more than 64 LEDs or 64 switches are used, a second controller may be installed.

LED 1. This LED illuminates if communication loss between the controller and the CPU occurs. It is independent of jumper P1 (which configures different communication loss features).

LED/Switch Modules	All types of modules are mounted to the front of a bay, and are connected to each other
	via a ribbon cable. Each module operates by the same rules: when a button is pressed, the
	controller card sends the CPU the information, and the event programmed for that button
	occurs.

Configuring the

LED/Switch

Controller Card

Activating the

Communication

Loss Feature

The 64/64 LED/switch controller requires physical configuration, but the LED/Switch modules do not. Configuration consists of setting jumper P1 and setting the device address. Device Address is covered in Appendix A.

If the LED/switch controller is used in a remote annunciator, it can make the LED/Switch modules annunciate a communication loss condition. If communication loss occurs when this setting is activated, LED 1 of the first connected display card illuminates, and the piezo on the LED/switch controller sounds. The indication is silenced via the corresponding switch (switch 1 on the first display card).

Use jumper port P1 to activate or deactivate the communication loss feature.

•Position 1 - 2 deactivates the feature (default).

•Position 2 - 3 activates the communication loss feature.

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