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Interfaces and Terminals as of I7.8
System Interfaces
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System Interfaces
Tab. 1
System interfaces and channels
Term
Explanation
B channel
User information channel: Each connection occupies one user infor-
mation channel, e.g. 2 user information channels (connections) can be
occupied simultaneously using one basic access.
D channel
Control and signalling channel: Channel for control and signalling as
well as for packet data transfer.
2B+D / 30B+D
2 2 B channels and 1 D channel / 30 B channels and 1 D channel
Ports
Physical connection points on the PBX for network interfaces and ter-
minal interfaces
Network interfaces
Network-side connection possibilities for the PBX
• Basic Access T
Digital network interface 2B+D
• Basic access S external
Digital network interface 2B+D:
A terminal interface S configured as
EXTERN
.
• Primary rate access T2
Digital network interface 30B+D
• SIP access via the Ethernet interface
on the basic system
For connection to one or more SIP providers. An SIP access contains a
maximum of 30 channels.
• Analogue network interface
(a/b network interface)
An analogue network connection has 1 user information channel.
Terminal interfaces
Terminal-side connection possibilities for the PBX
• ISDN terminal interface
(terminal interface S)
Digital terminal interface 2B+D:
Connection for Euro ISDN terminals, Terminal Adapters and ISDN PC
cards.
• AD2 terminal interface
(AD2 terminal interface)
A maximum of two AD2 system terminals, one system terminal and a
Pocket Adapter, or one DECT radio unit can be operated on a proprie-
tary AD2 bus.
• IP terminal interface
(via Ethernet Interface)
Digital user-network interface for linking up IP system terminals and
SIP terminals (soft- and hardphones).
• Analogue terminal interfaces
(a/b terminal interface)
An analogue terminal connection has 1 user information channel.
Special interfaces
Other PBX connection possibilities
• Ethernet interface on the basic sys-
tem
Central interface for connecting AIMS, a CTI server, IP system termi-
nals, SIP terminals or for the network-side connection to SIP service
provider.
• Ethernet interface on the expansion
card AIP 6400
Interface to an IP network for networking Ascotel® systems via QSIG
• Ethernet interfaces on the expan-
sion card AIP 6500
Interface to an IP network to implement an Ascotel® IntelliGate® Net
and to connect IP and SIP terminals
• V.24 interfaces
Serial data interface
• Door Intercom Systems
Special interface for connecting door intercom systems
• General Bell
Special interface for general bell