| AD51/006-2 | 
                                        Rochester Electronics | 
                                        38,000 | 
                                        77LTIPROTOCOL LINE TX/RX | 
                                    
                                                                    
                                        | AD51/023-0 | 
                                        Rochester Electronics | 
                                        1,534 | 
                                        RS-232 TRANSMITTER/RECEIVER | 
                                    
                                                                    
                                        | AD51/023-0REEL | 
                                        Rochester Electronics | 
                                        16,000 | 
                                        RS-232 TRANSMITTER/RECEIVER | 
                                    
                                                                    
                                        | AD51/024-0REEL | 
                                        Rochester Electronics | 
                                        30,750 | 
                                        8CH.RS232/423 T/MITTER IC | 
                                    
                                                                    
                                        | AD51/038-1REEL | 
                                        Rochester Electronics | 
                                        45,000 | 
                                        TEMPERATURE HARDWARE I.C. | 
                                    
                                                                    
                                        | AD51/041Z-0REEL | 
                                        Rochester Electronics | 
                                        33,423 | 
                                        2 CHANNEL RS-232 TRANSCEIVER | 
                                    
                                                                    
                                        | AD51/042-0REEL | 
                                        Rochester Electronics | 
                                        41,626 | 
                                        TEMPERATURE HARDWARE I.C. | 
                                    
                                                                    
                                        | AD51/046-0 | 
                                        Rochester Electronics | 
                                        592 | 
                                        TEMPERATURE HARDWARE I.C. | 
                                    
                                                                    
                                        | AD51/052Z-0REEL | 
                                        Rochester Electronics | 
                                        12,873 | 
                                        5V RS-232 TRANSCEIVER | 
                                    
                                                                    
                                        | AD51/057-0 | 
                                        Rochester Electronics | 
                                        24,570 | 
                                        8-PIN  TDM I.C. | 
                                    
                                                                    
                                        | AD51/061-0 | 
                                        Rochester Electronics | 
                                        49,798 | 
                                        5 V RS-485 TRANSCEIVER | 
                                    
                                                                    
                                        | AD51/061-0REEL7 | 
                                        Rochester Electronics | 
                                        16,000 | 
                                        TRANSMITTER/RECEIVER RS-485 | 
                                    
                                                                    
                                        | AD51/064Z-0REEL | 
                                        Rochester Electronics | 
                                        13,054 | 
                                        TOUCH SCREEN DIGITIZER | 
                                    
                                                                    
                                        | AD51/067ARMZ-R | 
                                        Rochester Electronics | 
                                        1,646 | 
                                        TEMP SENSOR DIGITAL SERIAL | 
                                    
                                                                    
                                        | AD51/080Z-0REEL7 | 
                                        Rochester Electronics | 
                                        5,800 | 
                                        AD51080 - POWER SUPPLY MANAGEMEN |