- 6 Zone one-way analog page control - All call - Background music input automatically mutes in zone being paged -Page override for special priority announcements - Features are programmable per zone - Built-in tone generator for night ringing time clock tone doorbell - Accepts pulse and tone dial - Battery back-up input - Built-in power - UL listed - To interface with analog extension or Centrex line add the VC-V-9970 - Access: page port on selected telephone systems PBX loop start or ground-start trunk port electronic or 1A2 line key(line card required) or dedicated single line phone set - Input impedance: 600 ohm - Music source impedance: 4 to 600 ohm - Music input level:-10dBm nominal - DC output: -24 Vdc @ 1.5A - Power requirements: 230 Vac/1A or 120 Vac/2A - Weight: 10lbs - Dimensions: 10.9inchH x 13inchW x 2.7inchD - VALCOM POWER UNITS (+30)