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Chapter 2

Installing the Board

2.1 Introduction
2.2 BX 3000 Board Components
2.3 Hardware Requirements
2.4 Configuring and Installing the Board
2.4.1 Selecting a Base I/O Address
2.4.2 Selecting an MVIP Clock Master
2.4.3 Installing the Boards
2.5 Completing the Installation
2.6 Connecting a BX 3000 Board to the Network
2.6.1 Connector Pinouts (BNC)
2.6.2 Connector Pinouts (RJ45)
2.7 Loopback Configurations

2.1 Introduction

This chapter:

2.2 BX 3000 Board Components

Figure 3 shows the major components of a BX 3000 board.

Figure 3. BX 3000 Board Components





2.3	 Hardware Requirements





To install and use your BX 3000 board, you need a computer with: 






2.4	 Configuring and Installing the Board





To install a BX 3000 board:




After you have installed the software, configure the board's memory block base address and interrupt (IRQ), using the BX 3000 Control Panel applet. For details, see Chapter 3.






2.4.1	 Selecting a Base I/O Address





A BX 3000 board occupies 4 contiguous I/O addresses. These addresses must be unique and must not conflict with any other devices in your system. 



The default factory setting for the base address is 0x0380-0x383. If you need to select another base address: 


    


  1. Find the I/O address selector switches on the face of the board, shown in Figure 3. The switch block is labeled "S3".
    

    

  2. Set the switches to the base address you need, as directed in the table below (showing base address range 380 to 3FC).
    

    
Note:  Switches 6, 7, and 8 are always off. They produce the offset 380. 

 

    


    
 Address
    

    		
 Switch Setting
    

    		
 Address
    

    		
 Switch Setting
    


    
 
    

 0x0380
    

 (factory setting)
    

    		


 
    

 0x03A0
    

    		



    
 
    

 0x0384
    

    		


 
    

 0x03A4
    

    		



    
 
    

 0x0388
    

    		


 
    

 0x03A8
    

    		



    
 
    

 0x038C
    

    		


 
    

 0x03AC
    

    		



    
 
    

 0x0390
    

    		


 
    

 0x03E0
    

    		



    
 
    

 0x0394
    

    		


 
    

 0x03E4
    

    		



    
 
    

 0x0398
    

    		


 
    

 0x03E8
    

    		



    
 
    

 0x039C
    

    		


 
    

 0x03EC
    

    		




    


    

    

    

    

  3. When you have installed the DPNSS service software, start up the BX 3000 Control Panel applet and specify the new I/O address you selected in the Address field in the "Board Setup" dialog box. For details, see Chapter 3.
    







2.4.2	 Selecting an MVIP Clock Master





If you are installing multiple MVIP-compatible boards in your system with your BX 3000 board, and you plan to enable MVIP switching between them, you will need to specify an MVIP clock master: a board that will drive the bus clock by which all other boards synchronize their communications. All other boards on the MVIP bus must be configured as clock slaves. 



Most MVIP-compatible boards (from NMS and from other manufacturers) can be configured to act as either clock masters or as clock slaves. In your system, the clock master should be one of the BX 3000 boards connected to an E1 trunk, so the clock is synchronized with the clock on the E1 line. (See Figure 4.) 


Note:  For testing purposes, you can cause your MVIP clock master board to simulate the E1 clock, without an actual connection to an E1 network. For details, see Chapter 3.




Figure 4.	 MVIP Clock Master and Slaves



Note:  In a system with interconnected H.100 and MVIP boards, an H.100 board must serve as the clock master. For details, see your switching documentation.


To designate a BX 3000 board as the MVIP clock master:


    


  1. When you install the board (as described in Section 2.4.3), position the clock master board centrally, and connect it to one of the central connectors on the MVIP ribbon cable, as shown in Figure 5. 
    

    
Note:  If you have many AG boards in your system, you should use a Teflon MVIP cable (available from NMS). You must use the Teflon cable if you have over 12 boards in your system. 


  2. When you have installed the DPNSS service software, start up the BX 3000 Control Panel applet and specify the clock master and slaves. For details, see Chapter 3.
    

    



    Figure 5.	 Arranging MVIP Boards in Your System
    







2.4.3	 Installing the Boards





To install BX 3000 boards in your system and connect them to the MVIP bus: 


    


  1. If necessary, configure the boards as described in Section 2.4.1 and Section 2.4.2. 
    

    

  2. Turn off the computer and disconnect it from the AC power source. Remove the cover and set it aside. 
    

    

  3. Insert each board into an empty 16-bit slot. 
    

    
Make sure the board you have designated as clock master is positioned centrally, as shown in Figure 5.
    

  4. Connect the MVIP bus cable to the MVIP connectors on your boards. 
    

    
The board you have designated as clock master should be connected to a central connector on the cable, as shown in Figure 5.
    
Make sure that pin 1 of the MVIP cable (marked with a colored strip) is on the side of the connector away from the metal end bracket.
    
 

    


    


    Caution:
    

    

    


    As you insert the MVIP bus connectors, make sure that the pins are lined up properly. If the connector is not lined up with the header, you may bend or break a header pin. NEVER pull out the connectors by pulling the cable. Always use the white pull-out tabs to remove the MVIP bus connectors.
    

    

    


    


    

    

    

    

  5. Fasten each board's end bracket to the back of the chassis. 
    

    

  6. Replace the cover, and re-connect the computer to its AC power source. 
    

    

  7. Complete your installation as described in Section 2.5. 
    







2.5	 Completing the Installation





Once you have installed your hardware as described in the sections above, do the following: 


    


  1. Install CT Access. To learn how to do this, see the documentation that comes with the API package. 
    

    

  2. Install the DPNSS Service for CT Access software. For details, see Chapter 3.
    

    

  3. Configure your boards and the DPNSS protocol running on each with the BX 3000/DPNSS Control Panel applet. For details, see Chapter 3.
    

    

  4. Verify that your installation is operational. Chapter 4 of this manual describes how to do this. 
    







2.6	 Connecting a BX 3000 Board to the Network





The BX 3000 has one or two CEPT E1 interfaces. For typical E1 communications, the board connects directly to an E1 trunk, as shown in Figure 6. 





Figure 6.	 BX 3000 Trunk Interface




BX 3000 boards come configured with single or dual 75 Ohm BNC connectors, or 120 ohm RJ45 connectors, as shown in Figure 7 and Figure 8. The following sections give pinout information for the two board types.






2.6.1	 Connector Pinouts (BNC)





Figure 7 shows the pinouts of the BX 3000 BNC trunk connectors:





Figure 7.	 BX 3000 BNC Connector Pinouts






2.6.2	 Connector Pinouts (RJ45)





Figure 8 shows the pinouts of the BX 3000 RJ45 trunk connectors:





Figure 8.	 BX 3000 RJ45 Connector Pinouts




The following table lists the pinouts of the BX 3000 RJ45 trunk connectors:


 





 Pin



 Description



 Direction




 1



 line receive (tip)



 input




 2



 line receive (ring)



 input




 3



 receive cable shield



 




 4



 line transmit (tip)



 output




 5



 line transmit (ring)



 output




 6



 transmit cable shield



 


















2.7	 Loopback Configurations





You can configure the two trunks of BX 3000 board in loopback mode to test your digital trunk application without actually connecting to the network. 



Figure 9 shows how to connect BX 3000 boards with BNC connectors in loopback configurations. Two BX 3000-1E boards are shown, with their respective transmit channels connected to each other's receive channels. Also shown is a single BX 3000-2E board, with its transmit channels cross-connected to its receive channels.



To make these connections, use coaxial cables with male-to-male BNC connectors.





Figure 9.	 BX 3000 Loopback Configurations (BNC Connectors)




Figure 10 shows how to connect BX 3000 boards with RJ45 connectors in loopback configurations. Two BX 3000-1E boards are shown, with their trunk connectors linked. Also shown is a single BX 3000-2E board, with its two trunk connectors linked.





Figure 10.	 BX 3000 Loopback Configurations (RJ45 Connectors)




To make these connections, used a twisted pair modular cable with RJ45C connectors. Within this cable, the transmit pins must be cross-connected to receive pins, as follows: 





 First connector



 Second Connector




 1



 4




 2



 5




 4



 1




 5



 2
























 
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