Instruction/ maintenance manual of the product CAS-81 Western Telematic
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WTI Part Number: 12365 Rev. C CAS-81 8 - Port Code Activated Switch User's Guide 5 Sterling · Irvine · California 92618 (949) 586-9950 · Toll Free: 1-800-854-7226 Fax: (949) 583-9514 · http://www.
Table of Contents 1. In tro duc tion ............................................. 1-1 2. Unit De scrip tion .......................................... 2-1 2.1. Front Panel In di ca tors .................................... 2-1 2.2. Back Panel .......
1. Introduction The CAS-81 Code Activated Switch brings the convenience of code-based RS232 switching to sites with multiple terminals, printers, and peripherals. The CAS-81 enables a single RS232 Control Port to switch between 8 devices via an ASCII code sequence.
2. Unit Description 2.1. Front Panel Indicators À ON: Indicates power to the unit is ON. Á RDY: Indicates unit is Ready to operate. A steady blink indicates that the CAS-81 is operating normally. Â TXD: Indicates that data is being received at Control Port pin 2.
2.2. Back Panel À Serial Ports 1 - 8: Eight RS232 DB9 male connectors configured as DTE. Accepts a standard AT 9 pin to printer or modem cable, depending on the application.
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.
3.1.4. Auto Connect Serial Port 1 (Switch 7) When enabled, automatically connects the Control Port to Serial Port 1 on the following conditions: 1. Power Up 2. After a Timeout disconnect, if selected. 3. After a Code sequence disconnect. Switch 7 Auto Connect Serial Port 1 Up Enable Down Disable 3.
3.2. Connect Power Cable Make certain that the CAS-81 power switch is set in the OFF position and then connect the power cable to the AC Power connector. Connect the other end of the power cable to a grounded AC wall outlet. 3.3. Connect Devices to Serial Ports Serial Ports 1 - 8 are wired as standard AT 9 pin COM Ports.
4. Operation 4.1. Power Up The ON LED indicates that AC Power has been turned on. The RDY LED indicates that the processor is operating and the unit is READY to operate. A flickering RDY LED indicates an AC Power brown out condition. The Control Port Status LEDs indicate the signal status of the Control Port.
4.4. Command Response Upon receiving a valid command string, the CAS-81 will send an acknowledgment message out the Control Port. The message is sent as 8 bits / no parity.
A. Description of System Interfaces A.1. Control Port (DB25 Female) The Control Port is a 25 pin female connector wired in a DCE (modem) configuration.
A.2. Serial Ports 1 through 8 (DB9 Male) The Serial Ports are 9 pin male, wired in a DTE configuration similar to that of an A computer. Figure A.1 and the table below describe the Serial Port interface.
B. Specifications Interface: Control Port: (1) RS232, 25 pin female, DCE configuration. Serial Ports: (8) RS232, 9 pin male, DTE configuration. Optional - RS422 Line Driver (TXD and RXD only) Signals Gated: TXD, RXD, RTS, CTS, DTR, DCD Protocol: Asynchronous ASCII, 7/8 bits, Any Parity, One Stop Bit.
D. Customer Service Customer Service hours are 8:00 AM to 5:00 PM, Pacific Time, Monday through Friday. When calling, please be prepared to give the name and make of the unit, its serial number, and a description of its symptoms.
An important point after buying a device Western Telematic CAS-81 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Western Telematic CAS-81 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Western Telematic CAS-81 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Western Telematic CAS-81 you will learn all the available features of the product, as well as information on its operation. The information that you get Western Telematic CAS-81 will certainly help you make a decision on the purchase.
If you already are a holder of Western Telematic CAS-81, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Western Telematic CAS-81.
However, one of the most important roles played by the user manual is to help in solving problems with Western Telematic CAS-81. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Western Telematic CAS-81 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
