Options - Panasonic DBS-576 Technical Manual

The PRI/23 card supports both S-point and T-point ISDN. See pg. 22 for more information.
This unit supports Basic Rate Interface (2B+D:144kbps) for S-point ISDN. Each card provides 4 BRI
circuits.
This card can be installed in any flexible slot.
The S-point BRI Unit supports information transferring capability (speech and data) at the CO trunk.
The Extension MDF Interface provides for connection from the cabinet to the MDF using standard 25-
pair cables. A cable is run from the front of the extension card to the Extension MDF card. Each
Extension MDF card can support any combination of up to 3 DEC/8 or AEC/8 extension cards. Up to
10 extension MDF interfaces can be installed in each cabinet.
 
This card provides enhanced service functions such as two RS232C ports (9600bps), a Background
Music input, and two-way external paging control.
Only one SCC can be installed in a DBS 576 phone system.
The MFR/8 card accepts dialed DTMF tones and determines the dialed digits. Each card contains 8
receiver circuits.
This card can be installed in either an option slot or any flexible slot. The maximum number of MFR/8
cards that can be installed depends on the number of ports in the system: 1 MFR/8 card in a 96-port
(1-cabinet) system; 2 MFR/8 cards in a 192-port (2-cabinet) system, ... 6 MFR/8 cards in a 576-port
(6-cabinet system). However, all the MFR/8 cards can be placed in the same cabinet.
This 4-line unit is designed to switch outside dial tone from the telephone company direct to an SLT
phone when power is lost. The Power Failure Transfer Unit connects 4 SLTs to 4 CO lines.
This is a conference speech card with four 8-party conference circuits. One conference card per
cabinet can be installed into any flexible slot (if only one circuit is used), or into flexible slot 1, 5, or 9 (if
more than one circuit is used). An 8-party conference can consist of 8 extensions; 7 extensions + 1
external line; or 1 extension + 7 external lines (or any combination in between).


24 Chapter 2 - System Hardware