1. 2560tx22.exe Driver
2. CABLE10.TXT File Contents

CABLE10.TXT Driver File Contents (2560tx22.exe)

   10 Mbps cabling specifications
                                                                    a1.05


Specifications and recommendations for 10 Mbps cabling
======================================================

NOTE: For 100 Mbps operation, refer to the 100 Mbps cabling
      specifications help file.

This document covers the following topics:

Twisted-Pair Ethernet (TPE) cabling
===================================

The ATI AT-2560 PCI adapters have a snap-in RJ-45 connector for use with
TPE cabling. TPE cabling is also known as RJ-45 cabling, Unshielded
Twisted Pair (UTP), and 10BASE-T cabling.

For more information on the 10BASE-T specification, contact your local
network supplier or call the IEEE at 800-678-IEEE.

Recommended cables
------------------

The RJ45 connector can use 22, 24, or 26-gauge UTP cabling. The cable
must comply with the IEEE 802.3 10BASE-T standard for Category 3, 4,
or 5.

The cable between the computer and the hub must be less than 100 meters
long.

These UTP cables work well:


Manufacturer       Model number         No. of pairs
----------------------------------------------------
Belden             9562                 2
Data Set           2402                 4
Belden             9566                 6

Silver Satin is not within the 10BASE-T specification and may not work or
may work intermittently.

82557-based PCI adapters don't support pre-10BASE-T concentrators.

Cable and connector pinouts
---------------------------

If you need to repair a cable or provide connectors for UTP cable, wire
straight through as shown in the following table.

Function     Pin#               Pin#
------------------------------------
    TX+       1    <-------->    1
    TX-       2    <-------->    2
    RX+       3    <-------->    3
    RX-       6    <-------->    6

Use only four of the eight pins. Pins 1 and 2 must be a pair, and pins 3
and 6 must be a pair.

To allow for a straight-through cable, hubs provide an internal
transmit/receive crossover function. This means the transmit circuit of
the network card is connected to the receive circuit of the hub and vice
versa.

Pinout for the RJ45 connector
-----------------------------
   ----------              -------------------------
1 |--        |          8 |------------             |
2 |--        |          7 |------------             |
3 |--         ---       6 |------------             |
4 |--            |      5 |------------             |
5 |--            |      4 |------------             |
6 |--         ---       3 |------------             |
7 |--        |          2 |------------             |
8 |--        |          1 |------------             |
   ----------              -------------------------
END                           TOP

Pin name and function:

1.  Transmit Data Plus. The positive signal for the TD differential pair.
    This signal contains the serial output data stream transmitted onto
    the network.

2.  Transmit Data Minus. The negative signal for the TD differential pair.
    This contains the same output as pin 1.

3.  Receive Data Plus. The positive signal for the RD differential pair.
    This signal contains the serial input data stream received from the
    network.

4.  Not used.

5.  Not used.

6.  Receive data minus. The negative signal for the RD differential pair.
    This signal contains the same input as pin 3.

7.  Not used.

8.  Not used.

Connecting two workstations without a hub
-----------------------------------------

10BASE-T uses a star topology. This means a hub or concentrator is in the
center of a star, and each workstation or server is connected to this
hub.

For test purposes, you can directly connect two workstations or a
workstation and a server without using a hub. This setup requires a
special cable incorporating the crossover function described earlier in
this document.

Function  Pin#              Pin#      Function
----------------------------------------------
TX+        1    <-------->   3        RX+
TX-        2    <-------->   6        RX-
RX+        3    <-------->   1        TX+
RX-        6    <-------->   2        TX-

NOTE: This is not an IEEE-supported configuration and should be used for
      test purposes only.
   


Link integrity
==============

There are two or three LEDs on the ATI AT-2560 Series PCI adapters:

1. A LNK light for link

2. An ACT light for activity

3. 100 Mbps models also have a 100 light

Refer to your adapter Installation Guide or the "Diagnostic LEDs" Readme
file for complete information.

Note: The ACT LED indicates read/write activity on the network, not
      necessarily activity on the adapter.


Common problems
===============


A hub can't detect a workstation
--------------------------------

This is often the result of a crossed wire in the cable or wiring closet.
Make sure the wiring is correct.


Workstations can't connect to the network
-----------------------------------------

Reset or power off/on your concentrator or hub.


Polarity problems
-----------------

A common problem in 10BASE-T wiring is crossing the positive and negative
phases of the transmit and receive signals (for example, crossing pins 1
(TX+) and 2 (TX-)).

ATI AT-2560 PCI adapters automatically detect this problem and adjust
for it internally. However, it's best to check your wiring and correct
this problem if you find it.



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