Aastra 470 System Manual

Expansion Stages and System Capacity
62
Aastra 470 ab R3.0
syd-0337/1.5 – R3.0 – 05.2013
3. 3. 2. 2 Terminal cards
Terminal cards are used for connecting digital and analogue voice and data termi-
nals such as:
FXS cards are an exception. Their analogue interfaces are multifunctional. In addi-
tion they provide interfaces for controlling external devices and switching over in-
ternal switch groups. Depending on the terminal or function, the interfaces are
configured individually and switched over internally accordingly (see "Multifunc-
tional FXS interfaces", page 149).
DSI cards are used for connecting digital system terminals such as phones. 2 termi-
nals can be connected to each DSI interface.
Terminals to ETSI standard are connected via BRI cards. The cards contain both ter-
minal interfaces (BRI-S) and network interfaces (BRI-T). On the BRI cards 4 interfaces
can be individually configured to BRI-S or BRI-T.
Tab. 25 Terminal cards
Type
Terminal inter-
faces per card
Max. number of
cards per system
Remarks
4FXS 4  FXS 7
1)
1)
1 fewer card if CPU2 application card is fitted
• Interfaces individually configurable
• 2 interfaces on each card (X.1 und X.2) are designed for long
lines.
8FXS 8  FXS 7
1)
• Interfaces individually configurable
• 2 interfaces on each card (X.1 und X.2) are designed for long
lines.
16FXS 16  FXS 7
1)
• Interfaces individually configurable
• 2 interfaces on each card (X.1 und X.2) are designed for long
lines.
Note:
To prevent the system from overheating, no more than 50 FXS
ports should be active simultaneously on each system.
32FXS 32  FXS 7
1)
• Interfaces individually configurable
• 2 interfaces on each card (X.1 und X.2) are designed for long
lines.
Note:
To prevent the system from overheating, no more than 30% of
the FXS ports should be active simultaneously per 32FXS card
and no more than 50 FXS ports per system.
8DSI 8  DSI 7
1)
16DSI 16  DSI 7
1)
32DSI 32  DSI 7
1)
4BRI 4  BRI-S 7
1)
• All interfaces configurable to BRI-T
8BRI 4  BRI-S 7
1)
• Four fixed BRI-T interfaces
• 4 BRI-S interfaces configurable to BRI-T

Aastra 470 Specifications

General

Brand	Aastra
Model	470
Category	Telephone
Language	English