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2.4 Installing the Trunk Cards
BRI4/BRI8 Card
Example: BRI8 Card
LINE 1 to
LINE 8
To NT1
Accessories (included): Ferrite core(s) ´ 1 (BRI4 card) or 2 (BRI8 card)
User-supplied (not included): RJ45 connector
CAUTION
Connect these optional service cards to the trunk through an NT1; do not connect to the U interface of the
trunk directly.
Notice
When connecting the RJ45 connector, attach the included ferrite core.
Note
•
LINE 5 to LINE 8 are for BRI8 card only.
•
These optional service cards have 100 W of terminal resistance. For use in point to multi-point
connection, the cards must be placed at the end of the bus.
14
Getting Started
RJ45
TX2(-)
RX1(-)
RX2(+)
TX1(+)
To attach the ferrite core
When using 1 or 2 cables:
When using 3 or 4 cables:
•
For every 4 cables, use 1 ferrite core; a
ferrite core holds a maximum of 4 cables.
•
Attach the ferrite core as close to the
card's connector as possible.
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