Nortel DMS-100 Series Reference Manual page 74

6-16 OAS alarm and Control Circuits
operator hears a tone from the office that indicates the severity of the alarm
condition.
The operating company assigns the tones and directory numbers in use for
ASCS and the specified parameters for the feature. For more information,
refer to the data schema section of Translations Guide. The following table
shows the normal tone assignment.
Tone
Continuous high, low, or
ringback tone.
No tone
Busy tone
Code 1 ringback tone
Code 2 ringback tone
The ASCS can repeat the alarm indicating call if the alarm condition is not
corrected. The ASCS can also repeat the alarm indicating call to indicate
that the alarm severity increased after the checking call.
When the office is not attended, operation of the alarm transfer switch on the
ACD can activate the ASCS feature. You can also activate the ASCS feature
with the ASCS ON command. You can deactivate the feature with the
ASCS OFF command.
The ASCS command allows the user to change or verify the status of the
ASCS feature.
Note 1: If you enter the ASCS command without parameters, the system
displays the current status of the ASCS sending facility. This status is ASCS
ON if the facility is active. The status is ASCS OFF if the facility is not
active.
Note 2: Installation of the ASCS feature causes activation of the checking
facility. Maintenance personnel can use the facility to check the office. The
operation of the alarm transfer switch does not affect the checking facility.
The ASCS command does not affect the checking facility.
297–1001–122 Standard 06.01 August 1999
Meaning
These tones indicate the presence of an
alarm condition in the originating office. The
operator receives these tones first.
When you dial the appropriate ASCS DN, the
tone condition received indicates the class of
the alarm. These indications follow:
Critical alarm
Major alarm
Minor alarm
No alarm