3.Installation

3.1. Set DIP Switches

The DIP Switches located on the CAS-81 back panel are used to set the Data Rate, Timeout Selection, Quiet Mode, Broadcast Mode, and other features. Note that a label on the underside of the CAS-81 unit also describes DIP Switch settings.

3.1.1.Data Rate (Baud) Selection (Switches 1 through 3)

Select the Baud Rate for the Control Port. The Baud Rate must match that of the control device. The CAS-81 is transparent to parity and will operate at 7 bits even or odd parity, and at 8 bits no parity.

 

Switch

 

 

1

2

3

Baud Rate

Down

Down

Down

1200

Up

Down

Down

2400

Down

U p

Down

4800

Up

U p

Down

9600

Down

Down

Up

19.2K

Up

Down

Up

38.4K

Down

U p

Up

57.6K

Up

U p

Up

115K

 

 

 

 

3.1.2.Timeout Selection (Switches 4 and 5)

Selects the No-Data-Activity disconnect period. If data has not been received by the Control Port for the specified time period, the selected Serial Port will close.

Switch

 

4

5

Timeout Selection

Down

Down

Off

Up

Down

5 Seconds

Down

U p

30 Seconds

Up

U p

60 Seconds

 

 

 

3.1.3.Quiet Mode (Switch 6)

When enabled, the CAS-81 will not respond with "Connect/Disconnect" messages.

Switch 6 Quiet Mode

U p Enable

Down Disable

3-1

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Western Telematic CAS-81 Installation, Set DIP Switches, Data Rate Baud Selection Switches 1 through, Quiet Mode Switch