
| System | 
 | 
| Music input | Phono jack (mono) | 
| P.A. output | Phono jack (mono) | 
| Power source | AC wall adapter | 
| 
 | 120VAC/16VAC 1.1A | 
| Power switch | Push Button | 
| DTMF detectors | 12 @  | 
| Dial tone generators | 1 | 
| Ring detectors | 2 | 
| Extension 4 connects to Line 1 | |
| Dimensions | (H) 51.6mm x (W) 203.2mm x | 
| 
 | (L) 213.4mm | 
| Weight | 0.675 kg | 
| Approvals | ACTA  | 
| 
 | and FCC Part 68 | 
| 
 | Industry Canada  | 
| 
 | FCC Part 15B | 
| 
 | Industry Canada ICES003 | 
| 
 | Power Adapter complies with | 
| 
 | UL and CSA | 
116
