|  | IDT | SINGLE CHANNEL E1 SHORT  HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | SINGLE CHANNEL E1 SHORT  HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | SINGLE CHANNEL E1 SHORT  HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | DUAL CHANNEL E1 SHORT HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | DUAL CHANNEL E1 SHORT HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | DUAL CHANNEL E1 SHORT HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | QUAD E1 SHORT HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | QUAD E1 SHORT HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | QUAD E1 SHORT HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | QUAD E1 SHORT HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | QUAD E1 SHORT HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | OCTAL E1 SHORT HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | OCTAL E1 SHORT HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | OCTAL E1 SHORT HAUL LINE INTERFACE UNIT IC | 
                    
                |  | IDT | T1 / E1 / J1 OCTAL FRAMER IC | 
                    
                |  | IDT | T1 / E1 / J1 OCTAL FRAMER IC | 
                    
                |  | IDT | T1 / E1 / J1 OCTAL FRAMER IC |