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Chapter 2

Installing the Hardware

2.1 Introduction
2.2 System Requirements
2.3 Configuring the Board's I/O Address Space
2.3.1 S Connect-x with Ringing and S/T Connect with Ringing
2.3.2 Boards Without Ringing
2.4 Setting Up MVIP Connectivity
2.5 Installing Boards In Your System
2.6 Connecting to Phones and to a Power Supply
2.6.1 T Connect-x
2.6.2 Boards without Ringing
2.6.3 Boards with Ringing
2.6.4 Grounding the Power Supply
2.6.5 Providing Lightning Protection

2.1 Introduction

This chapter describes how to configure your AG Connect board, install it in your system, and connect it to the MVIP bus and to your telephone network.
Warning:

AG Connect boards are shipped in protective anti-static containers. Leave the board in its container until you are ready to install it. Handle the board carefully and only hold it by its edges. We recommend that you wear an anti-static wrist strap connected to a good earth ground whenever you handle the board. Take care not to touch the gold fingers which plug into the ISA bus connectors.

2.2 System Requirements

Since the AG Connect board is used with additional MVIP-compatible boards, the exact system requirements depend on all the cards in the system. A typical PC should have:

In addition, you will need:

2.3 Configuring the Board's I/O Address Space

AG Connect boards each occupy 16 contiguous I/O addresses. These addresses must be unique and must not conflict with any other devices in your system.

To select a base address, find the I/O address selectors on the face of the board and change their settings. These selectors are set differently depending upon whether your board has the Ringing option or not. The sections below describe how to change the I/O address settings for both board types.

Note: Make a note of the base I/O address that you set the board to use. The driver software installation program you use later will prompt you for this address.

2.3.1 S Connect-x with Ringing and S/T Connect with Ringing

To change the I/O address for S Connect-x With Ringing and S/T Connect With Ringing boards:

  1. Find the I/O address selector switches on the face of the board.

    
The switches are shown in Figure 5 below:
    



    Figure 5.	 Board Components (boards with ringing)
    

    

  2. Set the switches as directed in the table below: 

    


    
 Base Address (Hex)
    

    		
 Switch Setting
    

    		
 Base Address (Hex)
    

    		
 Switch Setting
    


    
 0140
    

    		


 2140
    

    		



    
 0160
    

    		


 2160
    

    		



    
 0220
    

    		


 2220
    

    		



    
 0240
    

    		


 2240
    

    		



    
 0540
    

    		


 2540
    

    		



    
 0560
    

    		


 2560
    

    		



    
 0620
    

    		


 2620
    

    		



    
 0640
    

    		


 2640
    

    		




    


    

    

    

    

    
 

    


    


    Caution:
    

    

    


    Do not modify any other switches or jumpers on AG Connect boards.
    

    

    


    


    

    

    








2.3.2	 Boards Without Ringing





This procedure applies to all AG Connect boards that do not have the OWS ringing option. These boards are:




To select a base address:


    


  1. Find the I/O address selector jumpers on the face of the board.
    

    
The jumpers are shown in Figure 6 below.
    



    Figure 6.	 Board Components (Boards without Ringing)
    

    

  2. Set the jumpers as directed in the table below: 

    


    
 Base Addr. (Hex)
    

    		
 Jumper Setting
    

    		
 Base Addr. (Hex)
    

    		
  Jumper Setting
    

    		
 Base Addr. (Hex)
    

    		
  Jumper Setting
    


    
 
    

 0140
    

    		


 
    

 0620
    

    		


 
    

 2240
    

    		



    
 
    

 0160
    

    		


 
    

 0640
    

    		


 
    

 2540
    

    		



    
 
    

 0220
    

    		


 
    

 2140
    

    		


 
    

 2560
    

    		



    
 
    

 0240
    

    		


 
    

 2160
    

    		


 
    

 2620
    

    		



    
 
    

 0540
    

    		


 
    

 2220
    

    		


 
    

 2640
    

    		



    
 
    

 0560
    

    		


 
    

    		


 
    

    		




    


    

    

    

    

    
 

    


    


    Caution:
    

    

    


    Do not modify any other switches or jumpers on AG Connect boards.
    

    

    


    


    

    

    








2.4	 Setting Up MVIP Connectivity





This section explains how to set up your hardware so that you can enable MVIP connectivity in your system.



In a single PC chassis with multiple boards on an MVIP bus, one board drives the bus and clock signals. The board that drives the bus clocks is called the bus clock master. All the timing signals are passed across the bus from the clock master. 



All other boards (clock slaves) reference their clocks from the bus. See Getting Started With MVIP Switching for more information on telephony bus clocking.



Some boards can act as the clock master, while others cannot. (To determine the capabilities of other boards, see the documentation which came with those boards.) An AG Connect board can act as either a master or slave. For further details refer to Section 5.6.



You can also configure the board as a clock master or slave with the CT Access Switching service. For further details refer to the CT Access Switching Service Developer's Reference Manual.



Position the clock master board as close to the center of the MVIP bus cable as possible. All other boards should be distributed around the clock master, as shown in Figure 7.





Figure 7.	 Arranging MVIP Boards in your System




Make sure that your AG Connect board(s) are positioned appropriately for their clocking modes. 







Caution:







In a PC chassis that contains H.100 boards and MVIP-90 boards, but does not contain an MC1 board, one of the H.100 boards must be configured as the clock master. 



In a system that contains H.100 boards, MVIP-90 boards, and an MC1 board, the MC1 board must be the clock master.



















If you have many boards connected to the MVIP bus in your system, use a Teflon MVIP cable (available from NMS). You must use the Teflon cable if you have more than 12 boards connected to the MVIP bus in your system.






2.5	 Installing Boards In Your System


 







Warning:








 Potentially lethal voltages build up in an ungrounded or poorly grounded PC chassis (for instance if the PC power cord has only two prongs on its plug, as is the case in Japan, the Philippines, and some other countries). In these cases, ground the PC with a separate ground wire, as discussed in Section 2.6.4. In addition, make sure all peripheral equipment (e.g. external power supplies, etc.) are grounded as described in Section 2.6.4.


 Required grounding of the PC is provided automatically if the power plug on your PC's power cord has three prongs. This is true in the US, much of Europe, and many other countries worldwide.



















To install AG Connect boards in your system:


    


  1. If necessary, configure the board's I/O address as described in Section 2.3.
    

    

  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 ISA slot.
    

    
Make sure the board you will use as clock master is positioned centrally, as described in Section 2.4.
    

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

    

  5. 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.
    
On the AG Connect board, 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. For best results, the length of the cable and the number of connectors on the cable should not greatly exceed the number of boards connected to it. 

    


    


    Warning:
    


    

    

    


    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.
    

    

    


    


    

    

    

    
Note:  An AG board is not electrically connected to the MVIP bus unless its software configuration specifically enables it. Attaching the cable to the board does not affect its connectivity status.


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




Now connect the AG Connect board to your telephone lines, and connect the external power supply (if needed), as described in the following sections.






2.6	 Connecting to Phones and to a Power Supply


 







Warning:







Important Safety Notes for Telephony Connections


·	 Installation of this board and associated telephone wiring is to be performed only by competent technical personnel.


·	 Make sure the PC chassis is grounded through the AC power cord or by other means before connecting the telephone line.


·	 Never install telephone wiring during a lightning storm.


·	 Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.


·	 Use caution when installing or modifying telephone lines.


·	 If your site connects to private lines that leave the building, make sure that external protection is provided as described in Section 2.6.4.






















On the AG Connect board's end bracket is a high density female D-subminiature jack which you can use to connect the board to the public switched telephone network, or to OWS phones. Adapter cables are available to make this connection.



AG Connect boards that control OWS phones (such as the S Connect-x, S/T Connect, S Connect-x With Ringing, or S/T Connect With Ringing) require an external supply to power the connected OWS phones. Different adapter cables are available for these boards, which you can use to connect the board to a power supply as well as to the PSTN.






2.6.1	 T Connect-x 





To connect a T Connect-x board to the PSTN, use NMS cable P/N 2228. This cable has a 62 pin male connector on one end (to connect to the board) and a male RJ21X on the other (to connect to the telephone company interface).



Appendix D lists the signals and pin numbers from the AG Connect board to the telephone line interface.






2.6.2	 Boards without Ringing





S Connect-x and S/T Connect boards require a -24 Volt, 1 amp power supply to provide "talk battery" to power the operator work stations. We recommend using an Tellabs power supply (NMS part no. 2169). 



To connect an S Connect-x board to power supply and to the PSTN, use an NMS Y cable P/N 2934. This cable has a 62 pin male connector on one end (to connect to the board) and a male RJ21X on the other (to connect to the telephone company interface). It also has a connector to supply external power to the board. 



To connect the power supply:


    


  1. Connect the cable's blue lead to the - (-24V DC) terminal on the power supply, as illustrated in Figure 8.
    

    

  2. Attach a jumper between the + and COM terminals.
    

    

  3. Connect the orange lead to COM (ground) terminal.
    

    

  4. Make sure the power supply is properly grounded, as described in Section 2.6.4.
    




Appendix D lists the signals and pin numbers from the AG boards to the line interfaces.





Figure 8.	 Connecting an S Connect-x or S/T Connect-x to a Power Supply






2.6.3	 Boards with Ringing





S Connect-x With Ringing and S/T Connect With Ringing boards require a 24 Volt, 1 amp power supply to provide "talk battery" to power the operator work stations. They also require a 93V AC, 120mA, 20 Hz supply to power ring generation.



We recommend using a Viking power supply (NMS part no. 2961).This supply generates both voltages. You can connect the leads from the adapter cable (NMS part no. 2934) directly to this power supply. To do so:


    


  1. Connect the cable's blue lead to the -DC Output (-24V DC) terminal on the power supply.
    

    

  2. Connect the orange lead to COMMON (ground).
    

    

  3. Connect the white lead with the thin blue stripe to the AC Output (93V AC) terminal.
    

    

  4. Connect the white lead with the thin orange stripe to COMMON (to properly ground the board, connect both ground leads to COMMON).
    




Appendix D lists the signals and pin numbers from the AG Connect With Ringing boards to the line interfaces.





Figure 9.	 Connecting an S Connect-x With Ringing or S/T Connect With Ringing Board to a Power Supply






2.6.4	 Grounding the Power Supply





To insure your NMS boards operate correctly, and to prevent potential electrical shock, make sure your PC and the external power supply are properly grounded, and bonded (electrically connected) to each other. 






2.6.5	 Providing Lightning Protection 







Warning:







If any section of the wiring between the AG Connect board and the OWS phones connected to it runs outdoors or between buildings (buried or above ground), or your lines are more than 500 feet long in a non-metallic building, you must add a well-grounded lightning protection device in the circuit between the line and the NMS equipment. For lines that run between buildings, you or the Telco (PTT) must provide primary protectors at the building service entrance point. These can be carbon block, gas discharge, or solid-state protectors. If carbon block or gas discharge devices, you should add fast solid-state secondary protectors if your installation is in a lightning-prone area.



NMS recommends devices from ITW-Linx, Panamax, Lucent, and others. For details, contact NMS Developer Support.


















Note:  Your NMS warranty does not cover damage by lightning or other electrical discharge. You must add the external protector to obtain warranty coverage for NMS station cards connected to inter-building wiring.




 
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