Aastra 470, System Manual, Page: 52 / 250

Expansion Stages and System Capacity
52
Aastra 470 as of R1.2
syd-0337/1.2 – R1.2 – 11.2011
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 124 ).
DSI cards are used for connecting digital system terminals such as phones and ra-
dio units. 2 terminals 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. 24 Terminal cards
Type
Terminal interfaces
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.
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