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Viking TMS-12A 12-Line Call Sequencer (TMS-12A)
Viking TMS-12A 12-Line Call Sequencer (TMS-12A)
Viking TMS-12A 12-Line Call Sequencer (TMS-12A)



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TMS12A Call Sequencers


  • Compatible with Electronic Key sytems, 1A2 Key systems and PABX systems
  • Cascadable to support up to 24 lines
  • Automatically change between day and night modes via a contact closure, time, remote switch or remote programming
  • Locally recordable with a standard carbon handset or download announcements directly from a tape player
  • Remotely recordable
  • Rechargeable battery back-up included
  • Field expandable record time
  • Separate recordings for each announcement
  • Inbound call statistics:
    • Total inbound calls
    • Total sequenced calls
    • Total abandoned calls
  • 19" rack-mount hardware included
  • "A" lead control for 1A2 Key systems
  • Made in the USA


  • Power: 120V AC / 13.5 V AC 1.25 A UL listed adapter (provided)
  • Dimensions: 48.3 cm x 30.5 cm x 4.4 cm (19" x 12" x 1.75")
  • Connections: RJ-21X connector and 3.5 mm audio jack
  • Sampling Rate: 32 K
  • Message Length: 32 seconds, expandable to 2 minutes using the DRAM-1M
  • Environmental: 0 to 32 C (32 to 90 F) with 5% to 95% non-condensing humidity
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