Specifications

System Configuration Tables 2-11
Chapter 2 - System Specifications
XTS-IP - Installation Manual December 2005
Table 2-12: Single Line Audible Signals
Type of Signal Frequency
Signal Duration
(in seconds unless otherwise indicated)
Single Line Signals
Incoming CO Line 20Hz 90 VAC 2.0 on/4.0 off; Repeated
Intercom Tone Ringing 20Hz 90 VAC 1.0 on/0.2 off/1.0 on/4.0 off; Repeated
Transferred CO Line 20Hz 90 VAC 1.0 on/0.2 off/1.0 on/4.0 off; Repeated
CO Line Recall 20Hz 90 VAC 2.0 on/4.0 off; Repeated
CO Queue Call Back 20Hz 90 VAC 1.0 on/2.0 off; Repeated
Type of Signal Frequency
Signal Duration
(in seconds unless otherwise indicated)
Single Line Confidence Tones
Intercom Ringback 440+480 1.0 on/3.0 off
Transferred CO Line 440+480 1.0 on/0.2 off/1.0 on/4.0 off
Call Announce 440 0.2 on/0.2 off; (3 bursts)
Busy Tone 480+620 1.0 on/0.2 off/1.0 on/0.2 off/0.2 on/ 0.2 off/0.2on/
0.2 off/0.2 on; Repeated
Error Tone 480+620 0.2 on/0.1 off; Repeated
Intercom Dial Tone 350+440 Steady
DND Tone 350+440 0.2 on/0.2 off/0.2 on/0.2 off/0.2 on/0.2 off; burst
Paging Confirmation Tone 350+440 1.0 on
Conference Time-out Tone 440 Programmable Steady Tone
Confirmation Tone 350+440 0.2 on/0.2 off; (3 bursts)