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  5-17
E&M Tie Line Trunks
Guidelines
• E&M Tie Line Trunks are connected to a E&M Tie Line card (VB-44560) 
installed in a flexible slot of the cabinet. A maximum of 4 trunks can be 
connected to each E&M Tie Line card.
• A -48V Power Supply must be installed in the same cabinet as the E&M/4 card 
for E&M trunks to operate.
• E&M Tie Lines can be directly wired to the network jack (USOC: RJ1CX).
• Each trunk used requires an 8-pin modular cable to connect to the Network Jack 
(not supplied). 
• The maintenance switch (SW1) on the E&M Tie Line card can be set so that the 
card can be removed and installed while the system is operating. See page 5-1 for 
details on the maintenance switch.
• Table 5-10 shows the maximum numbers of cards and trunks per system type.
Table 5-10.  Maximum E&M Tie Line Trunks Per System
Installation
1.  Referring to Figure 2-20 on page 2-27, set the switch settings on the E&M Tie 
Line circuit card.
2.  Install the E&M Tie Line card in any available flexible slot.
3.  Referring to Figure 5-7, connect the trunks to the Network Jack using four (4) 
RJ-1CX 8-conductor modular cables (not supplied). System Type Maximum Number of Cards Maximum Number of E&M 
Tie Line Trunks
96 ports (CAB96
51) 12 1-48
192  ports (CAB96 + CAB96B) 24 1-96
288  ports (CAB96 + CAB96B
52) 36 1-144
384  ports (CAB96
52 + CAB96B52) 48 1-192
480  ports (CAB96
52 + CAB96B53) 60 1-240
576  ports (CAB96
52 + CAB96B54) 72 1-288
E&M/4 card 
						

							Chapter 5 - Trunks and Extensions Section 300-Installation
5-18 DBS 576 (USA), issued 6/2/98 576-13-300
Figure 5-7. Connecting E&M Tie Line Trunks 
						

							Section 300-Installation Chapter 5 - Trunks and Extensions
576-13-300 DBS 576 (USA), issued 6/2/98  5-19
T-Point ISDN Interface (TBRI)
Guidelines
• T-point ISDN is accommodated by the TBRI/4 card which is installed in the 
flexible slot. Four T-point ISDN lines can be connected to each TBRI/4 card.
• T-point ISDN is connected via NT1 (Network Termination Unit (NT1)).
• T-point ISDN is connected to the TBRI/4 card using 8-conductor modular 
connectors. See Figure 5-9 for the pin configuration of the 8-conductor modular 
connectors.
• The TBRI/4 card can be attached or detached when the power is turned ON by 
setting the maintenance switch (SW4). See page 5-1 for details.
• When using T-point ISDN, you must install the synchronization package (VB-
44460) on a CPC96, TSW288 or TSW576 card.
• The CPC96, TSW288 or TSW576 card cannot be attached or detached when the 
power is turned ON . Always turn the power OFF when attaching or detaching.
• Table 5-11 shows the maximum number of cards that can be installed in each 
system size.
Table 5-11.  Maximum Number of T-Point ISDN Interfaces Per System
• Setting the rotary switch SW1 of the TBRI/4 enables you to display the status of 
the each interface condition using LAYER1 LED (lights in red when 
synchronisation is completed) or LAYER2 LED (lights in red when DL (Data 
Link) is completed). 
Four lines on one single card are connected to an ISDN of the same station. 
Therefore, the remaining synchronizations are automatically completed when 
synchronization has been completed in any one of the lines.
Table 5-12 shows the settings of the line selection switch.
System Type Maximum Cards Maximum Lines 
(No. of channels)
96 ports (CAB9651) 12 48/(96ch)
192  ports (CAB96 + CAB96B) 24 96/(192ch)
288  ports (CAB96 + CAB96B
x2) 36 144/(288ch)
384  ports (CAB96
x2 + CAB96Bx2) 48 192/(384ch)
480  ports (CAB96
x2 + CAB96Bx3) 60 240/(480ch)
576  ports (CAB96x2 + CAB96Bx4) 72 288/(576ch)
TBRI/4 card 
						

							Chapter 5 - Trunks and Extensions Section 300-Installation
5-20 DBS 576 (USA), issued 6/2/98 576-13-300
Table 5-12.  Line Selection Switch (SW1: SELECT) on TBRI/4 Card
Installation
1.  Align the CN8 connector of the CPC96 card or the CN5 connector of the 
TSW288 or TSW576 card with the holes of spacers and connect the 
synchronization package (VB-44460).
Figure 5-8. Installation of Sync Package (Example: Installation on TSW288 Card)
2.  Insert the CPC96, TSW288, or TSW576 card in the specified slot.
3.  Insert the TBRI/4 card in an available flexible slot.
4.  Connect the 8-conductor modular jack via the NT1 to the T-point ISDN 
interface.
Switch Setting No. Settings
0 OFF (default setting when unit is shipped)
1 1st interface condition displayed by LAYER1 LED and LAYER2 LED
2 2nd interface condition displayed by LAYER1 LED and LAYER2 LED
3 3rd interface condition displayed by LAYER1 LED and LAYER2 LED
4 4th interface condition displayed by LAYER1 LED and LAYER2 LED
5 to 9 Not available 
						

							Section 300-Installation Chapter 5 - Trunks and Extensions
576-13-300 DBS 576 (USA), issued 6/2/98  5-21
5.  Pass the T-point ISDN wires with 8-conductor modular jack through the wiring 
aperture in the main unit and connect it to the modular connector on the TBRI/4 
card.
Figure 5-9. Connection of T-Point ISDN Interface (BRI) 
						

							Chapter 5 - Trunks and Extensions Section 300-Installation
5-22 DBS 576 (USA), issued 6/2/98 576-13-300
T-Point ISDN Primary Rate Interface (PRI)
Guidelines
• The T-point ISDN primary rate interface carrier line is accommodated on the PRI/
23 card which is installed in the flexible slot. You can connect one T-point ISDN 
primary rate interface carrier to each PRI/23 card.
• By setting the switch and reprogramming, the PRI/23 card can also be set up as an 
S-point ISDN primary rate interface (see page 5-45).
• The T-point ISDN primary rate interface carrier line connects to the switched 
network via a CSU.
• Depending on Dip switch SW2-2, the PRI/23 card can be set for 8-channel 
mode or Other mode. When set for Other mode you can also specify three 
channel classifications: 1 to 16B+D or 1 to 23B+D.
Table 5-13 shows the mode settings of the PRI/23 card.
Table 5-13.  Mode Settings of PRI/23 Card
• The DBS 576 can accommodate a maximum of 8 communication channels per 
flexible slot. If you set the number of channels to 9 or more, there is a limit of the 
number of cards that can be installed in other slots (see page 4-36).
• When multiple T-Point PRI cards are installed, one PRI may be selected to 
provide control and all 24 channels on the remaining PRI cards may be utilized as 
“B” channels.
• The T-point ISDN primary rate interface carrier line uses an 8-conductor modular 
connector, and is connected to the PRI/23 card. See Figure 5-10 on page 5-24 for 
the pin configuration of the 8-conductor modular connectors.
• The PRI/23 card can be attached or detached when the power is turned ON by 
setting the maintenance switch (SW3). See page 5-1 for details.
• When installing a T-point ISDN primary rate interface, install the synchronisation 
package on the CPC96, TSW288, or TSW576 card.
• The CPC96, TSW288 or TSW576 card cannot be inserted or removed when the 
power is turned ON . Always turn the power OFF when inserting or removing.
• Table 5-14 on page 5-23 shows the maximum number of T-point ISDN primary 
rate interfaces that can be installed in each system size. Card Name Switch Setting Mode Card Assignment/
No. of Channels Used
PRI/23 card 
(Primary Rate 
Interface)8ch mode PRIT/8: 1 to 8B+D
Other modePRIT/16: 1 to 16B+D
PRIT/23: 1 to 23B+D
PRI/23 card 
						

							Section 300-Installation Chapter 5 - Trunks and Extensions
576-13-300 DBS 576 (USA), issued 6/2/98  5-23
Table 5-14.  Maximum Number of T-Point ISDN Primary Rate Interface Cards Per System
Installation
1.  Align the CN8 connector of the CPC96 card or the CN5 connector of the 
TSW288 or TSW576 card with the holes of spacers and connect the SYNC 
synchronization package. See Figure 5-8 on page 5-20 for how to install the 
SYNC synchronization package.
2.  Insert the CPC96, TSW288, or TSW576 card in the specified slot.
3.  Set the DIP switch (SW2-1) of the PRI/23 card ON (trunk).
4.  Set the DIP switch (SW2-2) of the PRI/23 card as shown in Table 5-15.
Table 5-15.  Switch Setting for SW2 on PRI/23 Card
5.  Set SW1 on the PRI/23 card according to the following table.
These switch settings correspond to the distance between the DBS 576 
and the CSU. To turn a switch on, set it to the up position. System Type Maximum Cards 
(available flexible 
slot positions)Maximum Lines 
(No. of channels)
96 ports (CAB96x1) 3/(1, 5, 9) 3/(72ch)
192  ports (CAB96 + CAB96B) 6/(1, 5, 9
 X2) 6/(144ch)
288  ports (CAB96 + CAB96B
x2) 9/(1, 5, 9 X 3) 9/(216ch)
384  ports (CAB96
x2 + CAB96Bx2) 12/(1, 5, 9 X 4) 12/(288ch)
480  ports (CAB96x2 + CAB96Bx3)  15/(1, 5, 9
 X 5) 15/(360ch)
576  ports (CAB96x2 + CAB96Bx4) 18/(1, 5, 9
 X 6) 18/(432ch)
Switch No. Function
SW2-1 ON Set to Trunk. for T-point.
OFF Set to extension. for S-point.
SW2-2 ON Set to Other mode. Can be used with the programmed number (1 to 
16B+D or 1 to 23B+D) of channels.
OFF Set to 8-channel mode. Can be used with 1 to 8B + D channels. 
						

							Chapter 5 - Trunks and Extensions Section 300-Installation
5-24 DBS 576 (USA), issued 6/2/98 576-13-300
Table 5-16.  Switch Setting for SW1 on PRI/23 Card
6.  Insert the PRI/23 card into the specified flexible slot (see page 4-36)
7.  Connect the 8-conductor modular jack via the CSU to the T-point ISDN primary 
rate carrier line.
8.  Pass the T-point ISDN rate carrier wires with 8-conductor modular jack through 
the wiring aperture of the cabinet and connect it to the modular connector on the 
PRI/23 card.
Figure 5-10. Connection of T-Point ISDN Primary Rate Interface (PR1)
Switch No. Distance from the DBS 576 to the CSU
0 to 150 ft. 150 to 450 ft. 450 to 655 ft.
SW1-1 ON OFF OFF
SW1-2 OFF ON OFF
SW1-3 OFF OFF ON
SW1-4 OFF ON OFF
SW1-5 OFF OFF ON
SW1-6 OFF ON OFF
SW1-7 OFF OFF ON
SW1-8 Not used 
						

							Section 300-Installation Chapter 5 - Trunks and Extensions
576-13-300 DBS 576 (USA), issued 6/2/98  5-25
T1 Interface
Guidelines
• A T1 line is connected to the T1 card which is installed in the flexible slot. You 
can connect one T1 line to each T1 card.
• The T1 line connects to the switched network via a CSU (Channel Service Unit).
• Depending on Dip switch SW2-2, the T1 card can be set for 8-channel mode or 
Other mode. When set for Other mode you can also specify two channel 
classifications: 1 to 16 or 1 to 24.
Table 5-17 shows the mode settings of the T1 card.
Table 5-17.  Mode Settings of T1 Card
• The DBS 576 can accommodate a maximum of 8 communication channels per 
flexible slot. If you set the number of channels to 9 or more, there is a limit of the 
number of cards that can be installed in other slots (see page 4-36).
• The T1 interface carrier line uses an 8-conductor modular connector, and is 
connected to the T1 card. See Figure 5-11 on page 5-27 for the pin configuration 
of the 8-conductor modular connectors.
• The T1 card can be attached or detached when the power is turned ON by setting 
the maintenance switch (SW3). See page 5-1 for details.
• When installing a T1 interface, install the synchronization package on the CPC96, 
TSW288, or TSW576 card.
• The CPC96, TSW288 or TSW576 card cannot be inserted or removed when the 
power is turned ON . Always turn the power OFF when inserting or removing.
• Table 5-18 shows the maximum number of T 1 interfaces that can be installed in 
each system size.
Table 5-18.  Maximum Number of T1 Interface Cards Per SystemCard Name Switch Setting Mode Card Assignment/
No. of Channels Used
T1 card  8ch mode T1/8: 1 to 8 channels
Other modeT1/16: 1 to 16 channels
T1/24: 1 to 24 channels
System Type Maximum Cards 
(available flexible 
slot positions)Maximum Lines 
(No. of channels)
96 ports (Single Cabinet) 3/(1, 5, 9) 3/(72ch)
192  ports (Two Cabinets) 6/(1, 5, 9
 X 2) 6/(144ch)
T1 interface card 
						

							Chapter 5 - Trunks and Extensions Section 300-Installation
5-26 DBS 576 (USA), issued 6/2/98 576-13-300
Installation
1.  Align the CN8 connector of the CPC96 card or the CN5 connector of the 
TSW288 or TSW576 card with the holes of spacers and connect the SYNC 
synchronization package. See Figure 5-8 on page 5-20 for how to install the 
SYNC synchronization package.
2.  Insert the CPC96, TSW288, or TSW576 card in the specified slot.
3.  Set the DIP switch (SW2-1) of the T1 card ON (trunk).
4.  Set the DIP switch (SW2-2) of the T1 card as shown in Table 5-19.
Table 5-19.  Switch Setting for SW2 on T1 Card
5.  Set SW1 on the T1 card according to the following table.
These switch settings correspond to the distance between the DBS 576 
and the CSU. To turn a switch on, set it to the up position.
288  ports (Three Cabinets) 9/(1, 5, 9 X 3) 9/(216ch)
384  ports (Four Cabinets) 12/(1, 5, 9
 X 4) 12/(288ch)
480  ports (Five Cabinets)  15/(1, 5, 9 
X 5) 15/(360ch)
576  ports (Six Cabinets) 18/(1, 5, 9
 X 6) 18/(432ch)
Switch No. Function
SW2-1 ON
OFF
SW2-2 ON Set to Other mode. Can be used with the programmed number (1 to 
16 or 1 to 24) of channels.
OFF Set to 8-channel mode. Can be used with 1 to 8 channels.
System Type Maximum Cards 
(available flexible 
slot positions)Maximum Lines 
(No. of channels)