| OPF2412 | TT Electronics / Optek Technology | 24 | RECEIVER FIBER OPTIC 5MB ST | 
                                                                    
                                        | OPF2412T | TT Electronics / Optek Technology | 110 | RECEIVER FIBER OPTIC 5MB ST | 
                                                                    
                                        | OPF2416T | TT Electronics / Optek Technology | 5,000 | RECEIVER FIBER OPTIC 125MHZ | 
                                                                    
                                        | OPF2416TC | TT Electronics / Optek Technology | 5,000 | RCVR MOD FIBR OPTIC 125 MHZ DIP | 
                                                                    
                                        | OPF2418 | TT Electronics / Optek Technology | 5,000 | RECEIVER FIBER OPTIC 155MHZ ST | 
                                                                    
                                        | OPF2418T | TT Electronics / Optek Technology | 5,000 | RECEIVER FIBER OPTIC 155MHZ ST | 
                                                                    
                                        | OPF2418TC | TT Electronics / Optek Technology | 5,000 | RECEIVER FIBER OPTIC 155MHZ ST |