Panasonic Digital Business System 576 Technical Manual Section 300

							Section 300-Installation Chapter 2. System Overview
576-13-300 DBS 576 (USA), issued 6/2/98  2-9
CPC576 card (VB-444301)
The CPC576 card is a high-performance CPU unit for system with up to 576 ports. A 
32-bit CPU is incorporated.
The CPC576 card provides a 4-circuit MFR (DTMF receiver circuit), an input 
terminal for music on hold tone source (RCA jack), an interface connector for PCM-
CIA (PC card interface connector) and modem (300 bps) functions.
This card requires the use of the TSW576 card (VB-444302).
Memory is retained with a backup battery. (See “Replacing the Backup Battery of 
CPC card” on page 6-29 for more information on battery replacement.)
The system control program is downloaded to the internal memory of the system 
through the PC Card (VB-44431).  The PC Card is also necessary during normal 
operating time (do not remove the PC Card). 
Note:
J7 must be cut for the system to operate in Hybrid/PBX mode. 
Otherwise, the system will operate in Key mode.
Figure 2-6. CPC576 card
CAUTION:
• A replacement Single Inline Memory Module (SIMM) is provided 
through the service parts route. Panasonic does not take any 
responsibility if a SIMM, other than Panasonic service parts, or PC Card, 
other than VB-44431 is connected to the CPC576 card. 
						

							Chapter 2. System Overview Section 300-Installation
2-10 DBS 576 (USA), issued 6/2/98 576-13-300
Table 2-6 shows the switch settings of the CPC576 and Table 2-7 shows the LED 
indications.
Table 2-6.  Switch settings of CPC576 card
Table 2-7.  LED indications of CPC576 cardSW No. Description
SW1 : Black (MODE) Push switch for setting modes of system.
SW2 : Red (RESET) Push switch for resetting.
SW3 : (CODE) Rotary switch for setting startup mode of system.
SW6 : (RAM HOLD) Switch for selecting battery backup of memory.
LED indication Description
LED4 (RUN) Flashes red when FPU is operating.
LED3 (RUN) Flashes red when Main Processing Unit (MPU) is operating.
LED1 (MJ) Turns ON red when Major (MJ) alarm is detected.
LED2 (MN) Turns ON red when Minor (MN) alarm is detected. 
						

							Section 300-Installation Chapter 2. System Overview
576-13-300 DBS 576 (USA), issued 6/2/98  2-11
TSW288 card (VB-444202)
The TSW288 card is the time switch card for the CPC288 card. The TSW288 card is 
mounted on the option slot of the main cabinet. Only one TSW288 card can be 
mounted for each system (maximum 288 ports).
When connecting to additional cabinets, this card is cabled to the CBL card (VB-
44451) installed into CPC card slot of the additional cabinet(s).
The TSW288 card provides functions for a time switch (14 Highways x 14 
Highways), service tone, DTMF output, a connecting terminal for synchronization 
package (VB-44460) and eight 3-party conference circuits.
Figure 2-7. TSW288 card 
						

							Chapter 2. System Overview Section 300-Installation
2-12 DBS 576 (USA), issued 6/2/98 576-13-300
TSW576 card (VB-444302)
The TSW576 card is the time switch card required for the system using a CPC-576 
card. This card supports a maximum of 576 ports.
The TSW576 card is mounted in the option 1 slot of the main cabinet. Only one 
TSW576 card can be mounted for each system.
When connecting to additional cabinets, this card and CBL card (VB-44451) 
installed into CPC card slot of the additional cabinet are connected.
The TSW576 card provides functions for a time switch (24 Highways X 24 
Highways), service tone, DTMF output, a connecting terminal for synchronization 
package (VB-44460), and eight 3-party conference circuits.
Figure 2-8. TSW576 card 
						

							Section 300-Installation Chapter 2. System Overview
576-13-300 DBS 576 (USA), issued 6/2/98  2-13
CBL card (VB-44451): Building Block card
The CBL card is required for interconnecting cabinets in the DBS 576 system. The 
TSW288 or TSW576 card is also necessary for the interconnection of cabinets 
(building block connection).
The CBL card must be mounted in the CPC slot of all cabinets other than the master 
cabinet. A dedicated interconnect cable pair connects between cabinets. The 
connection to the master base cabinet is to the TSW288/TSW576 card, which is 
mounted in the OP1 slot. 
A rotary switch on the CBL card identifies the cabinet to the rest of the system (1 - 
first additional cabinet, 2 - second additional cabinet, etc.). Up to 5 additional 
cabinets can be installed and each must be uniquely identified.
Figure 2-9. CBL card
Table 2-8 shows the LED indication.
Table 2-8.  LED indications of CBL card
LED indication Description
LED1 (RUN) Flashes red when operating. 
						

							Chapter 2. System Overview Section 300-Installation
2-14 DBS 576 (USA), issued 6/2/98 576-13-300
CBLDBS Card Kit (VB-44452): Connection Cable card-DBS
The CBLDBS kit includes an interface card and cables for connecting between the 
DBS 576 and the DBS 96 cabinet and a new MDF interface card for the DBS.
The TSW288 / TSW576 card is necessary for connecting a DBS 576 to a DBS 96 
cabinet.
The CBLDBS card must be mounted in the AUX1 slot of the DBS (AUX2 cannot be 
used). A dedicated cable connects this card and the TSW288 / TSW576 card, which 
is mounted on the OP1 slot of the Main Cabinet. 
Only DEC cards can be installed in the DBS system.
Figure 2-10. CBLDBS interface card
Table 2-9 shows the LED indications.
Table 2-9.  LED indications of CBLDBS card
LED indication Description
LED1 (RUN) Flashes red when FPU is operating. 
						

							Section 300-Installation Chapter 2. System Overview
576-13-300 DBS 576 (USA), issued 6/2/98  2-15
The CBLDBS interface card provides connection points between the DBS and the 
MDF. 
Figure 2-11. CBLDBS MDF card 
						

							Chapter 2. System Overview Section 300-Installation
2-16 DBS 576 (USA), issued 6/2/98 576-13-300
EXT MDF card (VB-44611): Extension MDF Interface Card
The EXT MDF card provides a standard 25-pair connection at the DBS 576 Cabinet. 
This interface board installs in one of five possible positions on either side of the 
DBS 576 Cabinet and supports up to three extension cards (either DEC/8 or AEC/8). 
Since each extension card contains 8 extension ports, the EXT MDF supports a 
maximum total of 24 extensions. 
A standard 25-pair cable must be run from this interface board to the MDF. 
Figure 2-12. EXT MDF Interface card 
						

							Section 300-Installation Chapter 2. System Overview
576-13-300 DBS 576 (USA), issued 6/2/98  2-17
TRK MDF card (VB-44512): Trunk MDF Interface Card
The TRK MDF card provides a standard 25-pair connection at the DBS 576 Cabinet. 
This interface board installs in one of five possible positions on either side of the 
DBS 576 Cabinet and supports up to three trunk cards (LTRK/8, LGTRK/8 or 
DIDTR/8). Since each of these trunk cards contains 8 extension ports, the TRK MDF 
supports a maximum total of 24 trunks. 
A standard 25-pair cable must be run from this interface board to the MDF. 
Figure 2-13. TRK MDF Interface card 
						

							Chapter 2. System Overview Section 300-Installation
2-18 DBS 576 (USA), issued 6/2/98 576-13-300
SYNC Package (VB-44460): SYNC Package/Network Unit
The SYNC package supplies a network synchronizing circuit, and is required when a 
digital circuit, such as ISDN, is used.
The SYNC package generates a PCM clock that is synchronized with a digital 
network by the PLL circuit, supplying the PCM clock to the TSW288 / TSW576 
card or CPC96 card.
The SYNC package is mounted on either the CPC96 card or the TSW288/TSW576 
card.
For details on how to mount the SYNC package, see page 5-20.
Figure 2-14. SYNC Package
Table 2-10 shows the LED indications.
Table 2-10.  LED indications of SYNC package
LED indication Description
LED1 (SYNC) Turns on when synchronizing to the CO clock.