Panasonic Digital Business System 576 Technical Manual Section 300

Section 300-Installation Chapter 5 - Trunks and Extensions
576-13-300 DBS 576 (USA), issued 6/2/98  5-7
Figure 5-3. Caller ID Card Installation:
2.  For every CID circuit to be used, set the DIP switch to OFF (CID). Otherwise set 
the switch to ON (LS). 
Table 5-3.  Caller ID switch (SW10-17) settings of LTRK/8 card
Switch Setting Description
SW10 ON Circuit 1 is in loop start mode and does not receive caller ID information.
OFF Circuit 1 is set to receive Caller ID information (re
quires CID card).
SW11...

Chapter 5 - Trunks and Extensions Section 300-Installation
5-8 DBS 576 (USA), issued 6/2/98 576-13-300
3.  Install the LTRK/8 card in any available flexible slot.
4.  Referring to Figure 5-4 and Table 5-4 on page 5-9, connect the trunks to the 
MDF Interface Card using the supplied modular cable.
Note: Labels are supplied with the MDF Interface Card to identify the Flexible 
Slot cable connection. Make certain to attach a label on both ends of the cable 
and at the MDF Interface Card connector.
Figure...

Section 300-Installation Chapter 5 - Trunks and Extensions
576-13-300 DBS 576 (USA), issued 6/2/98  5-9
Table 5-4.  Loop Start Trunk Connections and Pinouts.
Trunk Circuit Card(s) MDF Interface Card (Trunk)
B (Cabinet) SS (Slot) C (Circuit)Modular 
Connector Modular 
ConnectorCN1 Color 
CodeCN1 Pin No.
_________
__________
1
CN2 (Bottom) CN2 - 1 (Top)WH-BL
BL-WH26
1
2 WH-OR
OR-WH27
2
3
CN3 CN2-2WH-GN
GN-WH28
3
4 WH-BR
BR-WH29
4
5
CN4 CN2-3WH-SL
SL-WH30
5
6 RD-BL
BL-RD31
6
7
CN5 CN2-4RD-OR
OR-RD32
7
8...

Chapter 5 - Trunks and Extensions Section 300-Installation
5-10 DBS 576 (USA), issued 6/2/98 576-13-300
Loop-Start/Ground Start Trunks
Guidelines
• Loop-start and or ground-start trunks are connected to a LGTRK/8 card (VB-
44511) installed in a flexible slot of the cabinet. A maximum of 8 trunks can be 
connected to each LGTRK/8 card.
• Both jumpers settings and system programming determines if the circuit is used 
as a loop-start trunk or a ground start trunk. After the card in installed, the circuit...

Section 300-Installation Chapter 5 - Trunks and Extensions
576-13-300 DBS 576 (USA), issued 6/2/98  5-11
Installation
Note: Prior to installing the Loop Start/Ground Start Trunk Card, make certain 
you can connect to a Trunk MDF Interface Card (VB44512) mounted on the side 
of the cabinet. See “Trunk MDF Interface Card” on page 5-4 for more 
information on installing a Trunk MDF Interface Card. 
Note: Make certain that there is a -48V power supply installed in every cabinet 
containing a LGTRK/8 card.
1....

Chapter 5 - Trunks and Extensions Section 300-Installation
5-12 DBS 576 (USA), issued 6/2/98 576-13-300
Figure 5-5. Connecting Loop-Start/Ground Start Trunks 

Section 300-Installation Chapter 5 - Trunks and Extensions
576-13-300 DBS 576 (USA), issued 6/2/98  5-13
Table 5-7.  Loop Start/Ground Trunk Connections and Pinouts.
Trunk Circuit Card(s) MDF Interface Card (Trunk)
B (Cabinet) SS (Slot) C (Circuit)Modular 
Connector Modular 
ConnectorCN1 Color 
CodeCN1 Pin No.
_________
__________
1
CN2 (Bottom) CN2 - 1 (Top)WH-BL
BL-WH26
1
2 WH-OR
OR-WH27
2
3
CN3 CN2-2WH-GN
GN-WH28
3
4 WH-BR
BR-WH29
4
5
CN4 CN2-3WH-SL
SL-WH30
5
6 RD-BL
BL-RD31
6
7
CN5 CN2-4RD-OR...

Chapter 5 - Trunks and Extensions Section 300-Installation
5-14 DBS 576 (USA), issued 6/2/98 576-13-300
DID Trunks
Guidelines
• Direct Inward Dial (DID) trunks are connected to a DIDTR/8 card (VB-44520) 
installed in a flexible slot of the cabinet. A maximum of 8 trunks can be 
connected to each DIDTR/8 card.
• A -48V Power Supply must be installed in the same cabinet as the DIDTR/8 card 
for DID trunks to operate.
• One or more Trunk MDF Cards (VB-44512) must be installed to support 
connection of...

Section 300-Installation Chapter 5 - Trunks and Extensions
576-13-300 DBS 576 (USA), issued 6/2/98  5-15
Note: Labels are supplied with the MDF Interface Card to identify the Flexible 
Slot cable connection. Make certain to attach a label on both ends of the cable 
and at the MDF Interface Card connector.
Figure 5-6. Connecting DID Trunks 

Chapter 5 - Trunks and Extensions Section 300-Installation
5-16 DBS 576 (USA), issued 6/2/98 576-13-300
Table 5-9.  DID Trunk Connections and Pinouts.
Trunk Circuit Card(s) MDF Interface Card (Trunk)
B (Cabinet) SS (Slot) C (Circuit)Modular 
Connector Modular 
ConnectorCN1 Color 
CodeCN1 Pin No.
_________
__________
1
CN2 (Bottom) CN2 - 1 (Top)WH-BL
BL-WH26
1
2 WH-OR
OR-WH27
2
3
CN3 CN2-2WH-GN
GN-WH28
3
4 WH-BR
BR-WH29
4
5
CN4 CN2-3WH-SL
SL-WH30
5
6 RD-BL
BL-RD31
6
7
CN5 CN2-4RD-OR
OR-RD32
7
8 RD-GN...