2N PBX 2N NetStar - Configuration Manual v2.6.0 - Manual (Page 29)

CO virtual port 3.4
29
3.4 CO virtual port
This is the analog carrier for connection of state analog line (central exchange). This carrier dispose
only with DTMF transmitter and that is why you have to route incoming call directly to final
destination or into DISA object. With DISA you are able to detect DTMF symbols and route the call to
specific destination. Parametres are divided into logical sections.
Stack status
This field displays information about stack and its actual state. In the case of CO virtual port you can
see following states:
a) null
b) config
c) on_hook
d) off_hook
e) error_stop
f) error_start_req
Figure 1 View of hardware configuration for CO virtual port.
Line parameters
Impedance – This parameter determines impedance of the hybrid according to preset models (User,
ETSI 600, Germany and Real 600).
Line model – This parameter determines another parameters of the hybrid according to preset
models EIA0 to EIA7 (e.g. EIA0 represents model of 100m long line).
Signalling type – Type of signalling of Active state. You can choose between Reverse polarity, Tarif
pulse or Simple.