Expansion Stages and System Capacity
3.3.2.1 Trunk cards
The trunk cards contain interfaces for connection to the analogue public network (PSTN), the digital public
network (ISDN) or for networking systems to create a private telephony network (PISN). The trunk cards
can be used and operated on any slots for interface cards.
Some trunk cards contain both network interfaces (BRI-T) and terminal interfaces (BRI-S). On these cards
the ratio of BRI-S interfaces to BRI-T interfaces is determined by the use and plug-in orientation of the
wiring adapters (see Fitting a wiring adapter).
Table 20: Trunk cards
Type Network interfaces
per card
Max. number
of cards
Remarks
TIC-1PRI 1 PRI-E1 4 • Contains 30 B channels
• Not usable in USA/Canada for the
public network
TIC-4TS 3 BRI-S/T + 1 BRI-T 4 • Three BRI-T interfaces configurable
to BRI-S
• One fixed BRI-T interface
TIC-2TS 2 BRI-S/T 4 • Both BRI-T interfaces configurable
to BRI-S
TIC-4AB
7
4 FXO 2
TIC-2AB
a
2 FXO 4
CAUTION:
Do not use other interface cards or interface cards with older hardware versions than listed in the table
above. The interface cards or even the communication server could be damaged.
3.3.3 Wiring adapter
The wiring adapters route the interfaces of the various interface cards with the right connection diagram to
the RJ45 sockets on the front panel. The adapters are fitted to WA1...WA4 sockets.
7
Card with hardware version >= "1A" only. Card must not be used in USA/Canada.
Release 7.1
System Manual for Mitel SMB Controller 54
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