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Chapter 6

Adapter Cards and Cabling

6.1 10Base-T Ethernet
6.1.1 Connecting the TX 3000 Boards for Redundancy
6.2 T1/E1 Adapter
6.3 V.35 Daughterboard
6.4 Single Sub-360 Daughterboard
6.5 Triple Sub-360 Daughterboard

6.1 10Base-T Ethernet

The 10Base-T Ethernet connection is an RJ-45 modular adapter. Figure 16 illustrates where the Ethernet daughterboard is found on a TX 3000 board. It is located in the same place on a TX 2000 board.

Figure 16. TX 3000 Board with Ethernet Daughterboard



The RJ-45 connector has the following pinouts:





Figure 17.	 RJ-45 10Base-T Ethernet Pinouts






6.1.1	 Connecting the TX 3000 Boards for Redundancy





The TX 3000 board supports the redundancy feature available with later versions of the Signaling System 7 (SS7) software. The redundancy feature enables a system to detect and recover from the failure of signaling links on a TX SS7 board, the failure of a signaling node, or the failure of the TX SS7 board itself.



Each pair of TX 3000 boards is connected with a private 10Base-T Ethernet crossover cable. No other boards or devices may be connected to this private Ethernet link.



Figure 18 shows how to setup two TX 3000 boards based on the a dual-node redundant signaling server model in which the boards are located in two separate chassis for board-level and system-level redundancy.





Figure 18.	 Dual Node Redundant Signaling Server




Figure 19 illustrates how to setup two TX 3000 boards based on the single-node signaling server in which the boards are located in the same chassis for board-level redundancy.





Figure 19.	 Single-Node Signaling Server




For more information on SS7 redundancy, see the Health Management Developer's Manual.






6.2	 T1/E1 Adapter





The TX 2000/TX 3000 board Dual T1/E1 daughterboard provides its base communications processor with full access to two T1 or E1 RJ-48 primary rate digital trunk interfaces. All channels from the primary rate interfaces can be either terminated locally into high performance serial communication controllers or switched onto the MVIP serial bus for processing by other MVIP compliant boards.


Note:  The TX 2000/TX 3000 board T1 (not the E1) adapter provides a DSX-1 type interface and requires an external Channel Service Unit (CSU) for connection to the public switched telephone network.


The Dual T1/Dual E1 daughterboards provide the following features:




Figure 20 illustrates where the Dual T1/Dual E1 daughterboard is found on a TX 2000 board. It is located in the same place on a TX 3000 board.





Figure 20.	 TX 2000 Board with Dual T1/Dual E1 Daughterboard




The RJ-48 connector has the following pinouts:





Figure 21.	 RJ-48 Dual T1/Dual E1 Pinouts







6.3	 V.35 Daughterboard





Figure 22 shows a TX 3000 board with a V.35 daughterboard. For information on configuring the V.35 pod, see Section 5.2, V.35 Pod Configuration.





Figure 22.	 TX 3000 Board with V.35 Daughterboard






6.4	 Single Sub-360 Daughterboard





The TX 2000/TX 3000 boards support an optional sub-360 daughterboard. This board provides additional Serial Communications Controller resources for the TX 2000/TX 3000 board. The sub-360 daughterboard provides additional internal resources only. There are no external connections to the sub-360 daughterboard.





Figure 23.	 TX 3000 Board with Single Sub-360 Daughterboard






6.5	 Triple Sub-360 Daughterboard





The triple sub-360 daughterboard applies to the TX 3000 only. The TX 3000 board supports an optional triple sub-360 daughterboard (shown in Figure 24) in place of the single sub-360. The triple sub-360 (identified by 3 MC68360 chips) provides 3 times the additional resources as the single sub-360 option.





Figure 24.	 TX 3000 Board with Triple Sub-360 Daughterboard












 
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