Panasonic Digital Business System 576 Technical Manual Section 300

							Section 300-Installation Chapter 1 - Requirements
576-13-300 DBS 576 (USA), issued 6/2/98  1-5
• The attachment-plug receptacles of the same type as that used by the systems that 
are in the vicinity of the DBS 576 are all to be of a grounding type, and the 
equipment grounding conductors serving these receptacles are to be connected to 
earth ground at the service equipment.
• A marking adjacent to the telecommunications jacks must instruct the user to 
connect grounding conductors for peripheral equipment before any 
telecommunication lines are connected to the product or system.
Cleaning
• Use a slightly damp cloth to clean the phones. The phones should never be 
cleaned with benzene, paint thinner, or other solvents. 
						

							Chapter 1 - Requirements Section 300-Installation
1-6  DBS 576 (USA), issued 6/2/98 576-13-300 
						

							576-13-300 DBS 576 (USA), issued 6/2/98  2-1
Chapter 2. System Overview
This chapter provides an overview of the DBS 576. This overview includes 
descriptions of system configurations and unit cards.
Cabinet Description
Panasonics DBS 576 is a hybrid telephone system capable of supporting up to 576 
ports.
The DBS 576 cabinet includes the following:
• Power unit
• Card slots
• Unit cards (optional)
• Backup battery (VB-44025) (optional)
• Switch box (VB-44023) (One required per base cabinet with one or more 
expansion cabinets attached)
• -48V Power Supply (VB-44022) (optional) (when one or more Ground 
Start, DID or E&M cards are installed in this cabinet)
Figure 2-1. The DBS 576 Base Cabinet 
Peripherals such as paging speakers, external music-on-hold sources, background 
music sources, PCs, printers, and SMDR connect to the unit cards.
Figure 2-2 shows the trunk and extension line connections as well as some peripheral 
connections. Trunk and extension line connections are covered in detail in Chapter 5. 
Peripheral connections are covered in detail in Chapter 6. 
						

							Chapter 2. System Overview Section 300-Installation
2-2 DBS 576 (USA), issued 6/2/98 576-13-300
Figure 2-2. System Connections 
						

							Section 300-Installation Chapter 2. System Overview
576-13-300 DBS 576 (USA), issued 6/2/98  2-3
Cabinet Configurations
Two types of cabinets are used with the DBS 576. The DBS 576 base cabinet (VB-
44020) supports 96 ports. A DBS 576 system may contain up to two base cabinets. 
Each base cabinet can be combined with up to 2 expansion cabinets (VB-44021) to 
configure systems for up to 576 ports. They can also be combined with an existing 
DBS to increase the number of digital extension line ports. For details, see Chapter 4, 
Connection to DBS (page 4-28).
Figure 2-3. Example Cabinet Combinations 
						

							Chapter 2. System Overview Section 300-Installation
2-4 DBS 576 (USA), issued 6/2/98 576-13-300
Circuit Cards
Circuit Card Configuration
Table 2-1 shows the unit cards and packages that can be used with the DBS 576.
Table 2-1.  Unit card configuration
Card Type Card Designation Product 
NameProduct No. Card Description Remarks
Analog
TrunkLoop Start Trunk Card LTRK/8 VB-44510 8-port loop-start trunk card An optional CID card can be 
attached (see below)
Loop Start/Ground Start 
Trunk CardLGTRK/8 VB-44511 8-port loop-start/ground start trunk card
DID Trunk Card DID/8 VB-44520 8-port DID trunk card Dial Pulse and DTMF
E&M Tie Line Trunk Card E&M VB-44560 4-port type 1/type 2 E&M tie line trunk 
card
Digital
TrunkBRI Card TBRI/4 VB-44530 T-point ISDN interface ports
PRI Card PRI/23 VB-44540 T-point ISDN primary interface port 
and S-point primary interface port
T1 Card T1 VB-44550 24-circuit T1 interface card
Digital
ExtensionDigital Extension Card DEC/8 VB-44610 8-port digital extension card
BRI Unit (S-Point) SBRI/4 VB-44630 S-point ISDN interface ports
PRI Card PRI/23 VB-44540 T-point ISDN primary interface port 
and S-point primary interface port
Analog
ExtensionAnalog Extension Card AEC/8 VB-44620 8-port analog extension card
Including Ringer circuit
Service
CircuitService Control Card SCC VB-44181 Service circuit card (high level) 
RS232C port 2, BGM I/F
External paging I/F
Processor
CardsCPC-96 Card CPC96 VB-44410 Call processor card for 96 port system 
(single cabinet)Supports up to 96 ports, 16 
bit CPU
CPC-288 Card CPC288 VB-444201 Call processor card for up to 288 port 
system (up to 3 cabinets)Supports up to 288 ports, 16 
bit CPU
CPC-576 Card CPC576 VB-444301 Call processor card for 576 port system 
(up to 6 cabinets)Supports up to 576 ports 32 
bit CPU
DTMF
Circuits8 DTMF Receiver Card MFR/8 VB-44110 8-circuit DTMF receiver
Interface 
cardsBuilding Block Expansion 
CardCBL VB-44451 Interface card for additional cabinet Mounts in CPC slot of all but 
first base cabinet
Connection Cable Card-DBS CBLDBS VB-44452 DBS 576-to-DBS interface card Install in AUX slot of DBS.
Trunk MDF Card MDF-CO VB-44512 Trunk MDF interface card Mounts on side of cabinet
Extension MDF Card MDF-EX VB-44611 Extension MDF interface card Mounts on side of cabinet
API Card API VB-44131 Applications Processor Interface card Data for External Integrated 
VM or ACD products
8-Party Conference Card CONF VB-44120 Interface card for 8-party conference 
interface
Ti me-S wit ch 
CircuitsTime Switch Card/288 TSW288 VB-444202 Time-switch circuit card (standard) Required with CPC288 card
Time Switch Card/576 TSW576 VB-444302 Time-switch circuit card (high-level) Required with CPC576 card
Audio 
applicationsVoice Storage Service Card VSSC VB-44170 2-way Voice storage cards
Voice Processing Card/4 VPU/4 VB-44160 Voice processing card
Built-in ACD voice 4 processing card 
(4ch)
Voice Processing Card/8 VPU/8 VB-44150 Voice processing cards 8
ACD Card ACD VB-44140 Built-in ACD unit
Daughter 
packageSync. Package/Network Unit SYNC VB-44460 Network sync circuit unit (standard) Mounts on CPC96, 
TSW288, or TSW576 card.
Caller ID CID VB-44513 Caller ID interface card Mounts on LTRK/8 card 
						

							Section 300-Installation Chapter 2. System Overview
576-13-300 DBS 576 (USA), issued 6/2/98  2-5
Card Descriptions
This section provides an overview of each card to be installed in the main cabinet.
CPC96 card (VB-44410)
The CPC96 card is a high-level CPU card for a 96 port system. This card 
incorporates a 16-bit CPU.
The CPC96 card provides a time switch (4 Highway x 4 Highway), a 4-circuit MFR 
(DTMF receiver circuit), a 3-party conference circuit, service tone, a DTMF 
transmitter, an input terminal for external hold tone source (RCA jack), a connecting 
terminal for synchronization package (VB-44460), an interface connector for 
external PC card and modem (300 bps) functions. The system control program is 
downloaded to the internal memory of the system through the PC card. 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.)
Note:
J1 must be cut for the system to operate in Hybrid/PBX mode. 
Otherwise, the system will operate in Key mode.
Figure 2-4. CPC96 card 
						

							Chapter 2. System Overview Section 300-Installation
2-6 DBS 576 (USA), issued 6/2/98 576-13-300
Table 2-2 shows the switch settings and Table 2-3 shows the LED indicators.
Table 2-2.  Switch settings of CPU96 card
Table 2-3.  LED indication of CPC96 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
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  2-7
CPC288 card (VB-444201)
The CPC288 card is a standard CPU unit for a system with up to 288 ports. A 16-bit 
CPU is incorporated.
The CPC288 card provides a 4-circuit MFR (DTMF receiver circuit), an input 
terminal for external hold tone source (RCA jack), an interface connector for 
external PC card and modem (300 bps) functions. 
This card requires
 the use of the TSW288 card (VB-444202).
The system control program is downloaded to the internal memory of the system 
through the PC card.
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 switch settings are listed in Table 2-4. The LED indicators are listed in Table 2-
5.
Note:
J1 must be cut for the system to operate in Hybrid/PBX mode. 
Otherwise, the system will operate in Key mode.
Figure 2-5. CPC288 card 
						

							Chapter 2. System Overview Section 300-Installation
2-8 DBS 576 (USA), issued 6/2/98 576-13-300
Table 2-4.  Switch settings of CPC288 card
Table 2-5.  LED indications of CPC288 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.