Ac15A Card - Panasonic Digital Business System Installation Manual

March 1997

AC15A Card

The AC15A card (VB3673) is an interface card to provide a wide area DBS networking facility using AC15A
Private lines . Each AC15A card provides three circuit connections.
The AC15A card allows the DBS to be connected to equipment with a 4 wire AC15A circuit. This type of
equipment includes converters and Multiplexers (MUXs). Therefore each circuit uses all four wires from a DDK.
When an AC15A card is installed the -48v PSU is not required. There are restrictions on the number of cards and
where they can be fitted in to the CCU dependant upon system size.
This table shows the maximum number of AC15A cards which can be installed in each DBS system and the slots
in which they can be used.
Note 1: The first LINE slot of all DBS systems, is reserved for power failure operation, therefore the AC15A card
cannot be installed in this slot.
Note 2: On DBS128, DBS 158 and DBS 180 a maximum of 2 AC15A Cards may be fitted in the each CCU
cabinet.
Up to four DBS's can be networked. When building a network, any connection pattern can be used provided
private circuit connections are available. Each AC15A Card will support up to 3 circuits.
Panasonic Digital Business System - Installation Manual
System Max. AC15A
DBS 38
DBS 68
DBS 90
DBS 128
DBS 158
DBS 180
Table 8 - AC15A Card Allowed Slots
Allowed Slots
Cards
1 EXT/LINE
2 LINE 2
EXT/LINE
2 LINE 2
LINE 3
EXT/LINE
3 LINE 2 - MASTER
LINE 3 - MASTER
EXT/LINE - MASTER
LINE 1 - SLAVE
EXT/LINE - SLAVE
4 LINE 2 - MASTER
LINE 3 - MASTER
EXT/LINE - MASTER
LINE 1 - SLAVE
LINE 2 - SLAVE
EXT/LINE - SLAVE
4 LINE 2 - MASTER
LINE 3 - MASTER
EXT/LINE - MASTER
LINE 1 - SLAVE
LINE 2 - SLAVE
LINE 3 - SLAVE
EXT/LINE - SLAVE
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