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<html><head><title>Delta Electronics, Inc. SSSI</title></head>
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<h2>SSSI Small Switch Serial Interface</h2></center>
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The SSSI Small Switch Serial Interface provides an RS-232 serial data interface for remote control and status reporting of small <a href="sls4data.htm">Model SLS-4M</a>, <a href="sls5data.htm">Model SLS-5M</a> and <a href="sls7data.htm">Model SLS-7M</a> Strip Line Switches. This single printed circuit board interface assembly includes microprocessor, random access memory, programmable read-only memory, high level matrix interface circuits and serial data interface circuits for use with switch sizes up to four columns by four rows. The serial data interface uses ASCII characters for control and status information. The control and status command format is based on the <a href="mcu8data.htm">Model MCU-8C</a> and <a href="mcu9data.htm">Model MCU-9C</a> serial interface format standard for compatibility with computer control programs and drivers developed for transmit matrix control and status via the MCU-8C or MCU-9C. The interface enables remotely controlled connection and disconnection of switch circuits, and provides status reports of the switch circuits and interlock circuits. The serial interface provides programmable parity and stop bit characteristics, and switch selectable baud rates in standard increments from 50 through 19200 baud. RS-422/423/485 and fiber optic data communication circuits are also available. Consult factory for optional serial data formats, interfaces or custom control/status applications.
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<tr><td align="middle"><img src="sls4sssi.jpg" alt="Model SLS-4 SSSI"></td></tr>
<tr><td><strong>Model SLS-4M (4 X 4) Strip Line Switch with SSSI Small Switch Serial Interface</strong></td></tr>
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<strong>Standard Serial Interface Characteristics</strong>
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<li>Data bits per character: seven<br>
<li>Start bit: one<p>
<li>Stop bits (jumper programmable): one (factory program) or two<br>
<li>Parity (jumper programmable): even (factory program) or odd<br>
<li>Baud rates (switch selectable): 50, 75, 110, 150, 300, 600, 1200, 2400, 4800, 9600 and 19200<p>
<li>Serial input circuit impedance: 180K Ohm<p>
<li>Active/tristate serial output circuit (jumper programmable): Serial output circuit is jumper programmable for operation with either a dedicated line or party line (multiple drop) serial communication circuit. When programmed for a dedicated line, the output circuit remains active (-6 Volts) when not transmitting data. When programmed for a party line, the output circuit is normally high impedance (tristate) and switches to an active mode only when transmitting data.<p>
<li>Control circuits (jumper programmable): RTS, CTS, DSR, DTR and DCD
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<strong>Control and Status Word Formats</strong>
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<tr valign="top"><td> A.</td><td>Connect command (Remote control system to switch):<br>CR LF ADRS C T A X</td></tr>
<tr valign="top"><td> B.</td><td>Disconnect command (Remote control system to switch):<br>CR LF ADRS D T X</td></tr>
<tr valign="top"><td> C.</td><td>Status command (Remote control system to switch):<br>CR LF ADRS S T X</td></tr>
<tr valign="top"><td> D.</td><td>Status response (Switch to remote control system):<br>CR LF ADRS S T A F M I PS ETB</td></tr>
<tr valign="top"><td> E.</td><td>Complete status command (Remote control system to switch):<br>CR LF ADRS S A L L X</td></tr>
<tr valign="top"><td> F.</td><td>Complete status response (Switch to remote control system):<br>CR LF ADRS S T1 A I1 T2 A I2 T3 A I3 T4 A I4 F M PS ETB</td></tr>
<tr valign="top"><td> G.</td><td>Optional antenna ground status command (Remote control system to switch):<br>CR LF ADRS S G N D X</td></tr>
<tr valign="top"><td> H.</td><td>Optional antenna ground status response (Switch to remote control system):<br>CR LF ADRS G A1 A2 A3 A4 ETB</td></tr>
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<strong>The characters are defined as follows:</strong>
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<tr valign="top"><td> </td><td>CR</td><td> = </td><td>ASCII Carriage Return</td></tr>
<tr valign="top"><td> </td><td>LF</td><td> = </td><td>ASCII Line Feed</td></tr>
<tr valign="top"><td> </td><td>ADRS</td><td> = </td><td>Switch address (switch selectable): ASCII characters 0-9, A-F (factory set to ASCII 1)</td></tr>
<tr valign="top"><td> </td><td>C</td><td> = </td><td>Command designator for connect message</td></tr>
<tr valign="top"><td> </td><td>D</td><td> = </td><td>Command designator for disconnect message</td></tr>
<tr valign="top"><td> </td><td>S</td><td> = </td><td>Command designator for status message</td></tr>
<tr valign="top"><td> </td><td>G</td><td> = </td><td>Command designator for antenna ground status message</td></tr>
<tr valign="top"><td> </td><td>ALL</td><td> = </td><td>ASCII character string meaning all transmitters</td></tr>
<tr valign="top"><td> </td><td>GND</td><td> = </td><td>ASCII character string meaning antenna ground</td></tr>
<tr valign="top"><td> </td><td>T</td><td> = </td><td>Transmitter number</td></tr>
<tr valign="top"><td> </td><td>A</td><td> = </td><td>Antenna number</td></tr>
<tr valign="top"><td> </td><td>T1-T4</td><td> = </td><td>Number of transmitters 1 through 4, respectively </td></tr>
<tr valign="top"><td> </td><td>A1-A4</td><td> = </td><td>Antennas 1 through 4 ground status digit:<br>0 = antenna not grounded<br>1 = antenna grounded</td></tr>
<tr valign="top"><td> </td><td>F</td><td> = </td><td>Fault digit:<br>0 = no fault<br>1 = summary fault<br>3 = connection fault<br>5 = antenna grounding fault (optional)</td></tr>
<tr valign="top"><td> </td><td>M</td><td> = </td><td>Mode digit:<br>Always 1 = remote mode</td></tr>
<tr valign="top"><td> </td><td>I</td><td> = </td><td>Transmitter interlock status digit:<br>0 = open interlock<br>1 = valid interlock</td></tr>
<tr valign="top"><td> </td><td>I1-I4</td><td> = </td><td>Transmitters 1 through 4 interlock status digit, respectively </td></tr>
<tr valign="top"><td> </td><td>PS</td><td> = </td><td>Matrix power supply status digit:<br>0 = supply fault<br>1 = supply normal</td></tr>
<tr valign="top"><td> </td><td>X</td><td> = </td><td>ASCII X to end command message</td></tr>
<tr valign="top"><td> </td><td>ETB</td><td> = </td><td>ASCII end of transmission block to end status response</td></tr>
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<caption><strong>SPECIFICATIONS</strong></caption>
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<tr valign="top"><td><strong>Number of Switch Inputs/Outputs:</strong></td><td>4 Inputs/4 Outputs</td></tr>
<tr valign="top"><td><strong>Data Interface:</strong><br> Standard:<br> <br> Optional:</td><td>
<br>RS-232 interface, baud rate selectable in standard increments from 50 through 19200 baud<br>RS-422/423/485 and Fiber Optic</td></tr>
<tr valign="top"><td><strong>Matrix Operate Time:</strong></td><td>Less than 0.7 second after receiving a valid connect or disconnect command</td></tr>
<tr valign="top"><td><strong>Confirm Time:</strong></td><td>Transmission of status response begins approximately 0.1 second after receiving a status command except during matrix operate and status update sequence</td></tr>
<tr valign="top"><td><strong>Error Detection:</strong></td><td>Parity, framing and overrun error detection prevents faulty operation of matrix and errors in status reporting</td></tr>
<tr valign="top"><td><strong>Power Requirements:</strong></td><td>Uses standard 40 or 48 VDC motorized switch power supply or external 15 to 60 VDC supply</td></tr>
<tr valign="top"><td><strong>Dimensions:</strong></td><td>6.5" wide x 6.3" high x 1.5" deep. Mounts on switch main panel behind front panel.</td></tr>
<tr valign="top"><td><strong>Environmental:</strong></td><td>Operating Temperature: 0° C to 50° C<br>Non-Operating Temperature: -54° C to +71° C<br>Humidity: 0% to 90% noncondensing</td></tr>
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For additional information on any of our products, please contact <a href="mailto:[email protected]">Sales</a> to discuss your particular requirements:<br>
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<td><strong>Delta Electronics, Inc.<br>
5730 General Washington Drive<br>
P. O. Box 11268<br>Alexandria, VA 22312<br><br></strong></td>
<td><strong>Phone: (703) 354-3350<br>
U.S. Toll Free: 1-800-8-DELTA-8 (1-800-833-5828)<br>
Fax: (703) 354-0216<br>
<address>www.deltaelectronics.com</address>
Email: <a href="mailto:[email protected]">[email protected]</a></strong></td>
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<font size=1>The Delta Electronics logo is a registered trademark of Delta Electronics, Inc.</center></font>
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