2-20
Signal
CO Line Ringing:
Scheme 0
Scheme 1
Scheme 2
Distinctive 1
Distinctive 2
Distinctive 3
Distinctive 4
SLT
Intercom Ringing:
Scheme 0
Scheme 1
Scheme 2
Distinctive 1
Distinctive 2
Distinctive 3
Distinctive 4
SLT
Message Wait
Callback
Table 2-9: Audible Signals
Frequency
N/A
300 ms On, 400 ms Off, 300 ms On, 4 seconds Off
N/A
1 second On, 3 seconds Off
N/A
1 second On, 3 seconds Off
SLT bell
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
N/A
1 second On, 3 seconds Off
N/A
1 second On, 3 seconds Off
N/A
300 ms On, 400 ms Off, 300 ms On, 4 seconds Off
SLT bell
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
Follows ring cadence of Ring Scheme selected
DHS Technical Specification Tables
Cadence