TouchLine Key Signaling

Signalig protocol

To types of signaling protocols used towards the stations, Current Signaling and Tone Signaling

Single Tone Signaling

Station keyboard digits 0 - 9 use sinewave tones in the range 500Hz to 2300 Hz, at 200 Hz steps.

• Digit 0: 500 Hz
• Digit 1: 700 Hz
• Digit 2: 900 Hz
• Digit 3: 1100 Hz
• Digit 4: 1300 Hz
• Digit 5: 1500 Hz
• Digit 6: 1700 Hz
• Digit 7: 1900 Hz
• Digit 8: 2100 Hz
• Digit 9: 2300 Hz

Another set of 10 tones are used for DAK signaling for CRM IV, Dual Display and PrisCom stations.

• The tones 10-19 are sinus tones in the range 600Hz to 2400 Hz, 200 Hz steps.

Two Tone

Two Tone signaling is used by the PrisCom Stations.

• Key board digit 0-9
  • Digit Tone 0-9

• DAK D1-D15
  • Digit tone 10 + 0 to 10 + 14

• DAK D16-D30
  • Digit tone 11 + 0 to 11 + 14

• DAK D31-D45
  • Digit tone 12 + 0 to 12 + 14

• DAK D46-D60
  • Digit tone 13 + 0 to 13 + 14

• DAK D61-D75
  • Digit tone 14 + 0 to 14 + 14

• DAK D76-D90
  • Digit tone 15 + 0 to 15 + 14

• DAK D91-D100
  • Digit tone 16 + 0 to 16 + 9

Optional DAK Acknowledge

If the station is configured with acknowledge on DAK keys:

• The AMC application will send an acknowledge message by the Display Text Protocol.
• The station will acknowled this by sending tone 18.