2N NetStar Admin manual - Manual (Page 45)

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3.3 ASL
The ASL virtual port is used for connecting common analogue telephones or fax
machines. This virtual port enables DTMF and pulse dialling detection and as well as
DTMF or FSK using CLIP transmission. The parameters are divided into logical sections.
Stack status
This field displays information on the stack and its current status. With an ASL virtual
port you can see the following statuses:
null
config
on_hook
off_hook
error_stop
error_start_req
Figure: View of ASL Virtual Port Hardware Configuration
Line parameters
Impedance – this parameter determines the impedance of the hybrid circuit
according to preset models (User, ETSI 600, Germany and Real 600).
Line model – this parameter provides further hybrid circuit parameters
according to preset models EIA0 to EIA7 (e.g. EIA0 represents a 100m long line
model).
Signalling type – shows the type of active state signalling. Choose from
, or . Reverse polarity Tariff pulse Simple
Tariff pulse type – defines the tariff pulse sending source. Select , 12 kHz 16
or . kHz none