Figure 4.55 Overview Of The Ln16X Card - Aastra AXD Installation And Maintenance Manual

4.14.5 LN16X card
4.14.5.1 Description
The LN16X card is used to connect 16 digital set lines to an iPBX.
4.14.5.2 Functional description
The LN16X card ensures:
• The transmission of signals between the UCV card and the D channel at 8 kbit/s on
each of the lines connected to a digital set
• Voice transmission between each of the 16 PCM TSs exchanged internally with the
UCV card and the B channel at 64 kbit/s on each of the 16 lines connected to a digital
set
• A power supply function: The LN16X card receives several supply voltages on the
backplane connector (J1):
- +5 V, -5 V used for the operation of its internal circuits,
- -48 V used to supply the digital set lines.
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LN16X CARD
Figure 4.55 O
VERVIEW OF THE
Installation and Maintenance Manual - Aastra 5000
Description des sous-ensembles
LN16X
CARD
J1