@E001.ADF - IBM Token-Ring Network 16/4 Adapter/A (Tropic based version 2.01!) 
E000.DGS - Diags

TRM164.EXE  Drivers/Diagnostic/Option disk v2.0 (includes ADF ver 2.01 and DGS)
Many adapters use "E001" adf. But there are different versions of the adfs to choose from. 

Short 16/4 Token Ring Adapter (74F9415 or 74F9321)
   02G1394ESD vs. 50G6144ESD
   Tokin' Madness
16/4 Long Token Ring Adapter 
   53F7748
   16F1144
Short 4MB Token Ring Adapter 25F7540
Identifying the Tropic Chipset
OEM Tropic chipset list
Registers on Screen?
Adapter fails to insert on ring
Promiscuous Copy and Promiscuous Mode 
Trace and Performance Adapter Hack  (feel the urge to burn?)
ADF Settings

Most short 16/4 have the RPL-code integrated in the ROM-code - the 4Mb/s and the long 16/4 adapters have a separate ROM for it - and the chip needed to be purchased separately. 

o   16/4 megabits-per-second adapter data rate -- program selectable
o   64KB RAM on card
o   Larger maximum frame size - At 16Mbs - 17,997 bytes, 4Mbs 4501 bytes.
o   RAM paging - software can access all 64KB of RAM, but only uses 16KB of PS/2 memory space
o   Maximum # of link stations increased from 64 to 254
o   Early Token Release at 16 megabits per second

02G1394ESD vs. 50G6144ESD
  Win95 can detect the difference between the two. Install a 16/4 with main chip 02G1394ESD. W95 is happy. But install a 50G6144ESD, up comes the familiar "Your IBM 16/4 Token Ring is not set up correctly..." 
   W95 will continue to load and the TR works on an 8228. Must be the chipset is close enough to complain about, but also close enough to work. 

Tokin' Madness
  I got a few more short 16/4s. I noticed some (to me) interesting factoids. The 02G1394ESD chipset cards' bios chips do not change their dates. The 50G6144ESD have two sets of bios dates, some are 1990 and some are 1993. I have one 50G6144ESD card that has the bios chips from the 02G1394ESD card. 
   Postulate- The 02G1394ESD chip is OK, but the 50G6144ESD had a problem, they issued a new bios for it. They even tried the bios off the 02G1394ESD. I don't have a large enough population to derive a high correlation, but... My wild SWAG is as good as yours... 

16/4 Long Token Ring Adapter 16F1144
 

   Differences between the 53F and 16F adapters are the addition of a 64D7274ESD and different ROM (25F9532 and 25F9531). They are basically the same - however the one with the 64D7274 at ZM3 is the later revision. This chip contains the output drivers and some "corporate logic", which was the 2 14-pin ICs on the elder version (ZM1 & ZM4). 

The P/N for the RPL-ROM is 25F8923 by the way. 

o   16/4 megabits-per-second adapter data rate -- program selectable
o   64KB RAM on card
o   Larger maximum frame size - At 16Mbs - 17,997 bytes, 4Mbs 4501 bytes.
o   RAM paging - software can access all 64KB of RAM, but only uses 16KB of PS/2 memory space
o   Maximum # of link stations increased from 64 to 254
o   Early Token Release at 16 megabits per second

  The DP802514 and DP802515 are Microcode ROMs for the TROPIC Token-Ring Network Controllers and they feature an interface that is compatible to DP8025 Interface Controller to allow direct interfacing without the use of GLUE logic. 

Peter sez:
   If you look at the Madge "True Blue" 16/4 card you will find the same silver capped NatSemi chip there. Card has ID E001 - and works with the same "Tropic" drivers under Linux. NatSemi was a second source manufacturer of the Tropic chipset for quite some time. Other customers were e.g. Hypertec in Australia, which used IBM and NatSemi chips. At least I have seen Hypertech E001 cards with both sorts of chips.
   In the pictures database there is a Madge TR with the NatSemi and a Hypertech (long card) with the IBM chip. Later -on the Auto-TR 16/4- IBM switched to an all-plastic chip.

David Beem sez:
    My "Networking the Desktop, Cabling, Configuration, and Communications" (Deni Conner/Mark Anderson, Academic Press, 1995) explains the various TR chipsets in a couple of paragraphs. The NS chip is refered to in the second:
    "Texas Instruments (TI) announced an agreement with IBM to develop a token ring chipset called the TMS380 based on the IBM token-ring specification. This chipset had technological and performance advantages over the IBM chipset that allowed increased data buffers for data transfer and also allowed direct memory access (DMA) transfers, in which an onboard controller managed access to memory. Later, TI enhanced the TMS380 chipset to accomodate 16Mbps token-ring networks, resulting in the TMS380C16. Recently [to when the book was written], TI announced an advanced token-ring chipset using the TMS380C26 chipset, which integrates more functionality than the previous two.
    While the TI chipset is 100-percent compatible with the IEEE 802.5 and 802.2 token-ring specifications, it is not 100-percent compatible with IBM's LLC protocol implementation. As a result, IBM developed the Token-Ring Protocol Interface Controller (TROPIC) chipset for third-party vendor use, ensuring register-level compatibility for all IBM applications. Marketed by National Semiconductors under licence from IBM, TROPIC manufacturers include vendors such as Madge Networks, Proteon, Thomas-Conrad Corp., Cabletron Systems, and 3Com.....".

Peter-
   That's a TR adapter trying to RPL..... check startup sequence. 

Trace and Performance Adapter
   I thought these were special adapters. Turns out that it's just a special BIOS for the short and long 16/4 TR adapters... 

From Peter 

 You need the two .BIN files for burning two Eproms. These replace the two Eproms on the 16/4 card. The "analyzer" machine needs to run a generic DOS with the modified adapter installed. 
    Then extract the TAP20.BIN ... at the C:/ Dos-prompt type TAP ... then "Measure Ring Performance" - enter any file name for storing the performance data, [ENTER], then select "Start measuring" from the menu ... and if you did it all right you get a nice bar graph with the TR network load. Mine never reaches values over 65% - even when I have all workstations running and do large copy and backup jobs. 
    There are other functions as well. You could build a "traffic matrix": simply spoken "who talks with whom ?" - the program shows the burn-in adresses (these 12-digit codes burned in the adapter) - here it pays to overwrite these internal adresses with own ones ... my server for example has 4000 0001 CAFE (hex numbers only).
 Or having a list which computer has which burn-in adress. WINIPCFG  (under 95/98) shows the burn-in adress, some cards have stickers at the rear (LanStreamer, modern cards). 

  Hmmm....I am not quite sure at the moment if you need any of the DOS LAN support drivers (DXMA0MOD.SYS / DXMC0MOD.SYS / DXMT0MOD.SYS) in your CONFIG.SYS. My P70 has at least the DXMA0MOD.SYS ... but the TAP opens and closes the adapter during operation. 

3 files. 
1. TAP20.ZIP (The software, includes ROM files) 
2. TAP164O.BIN (Odd Eprom, 27C256-20, Checksum 518E) 
3. TAP164E.BIN (Even Eprom, 27C256-20 Checksum 9B14) 

I tried them with the "long" 16/4 and the two short ones (with and w.o. RPL). Currently they are running with a 93F0179 - which is the short 16/4 with RPL. 

Primary or Alternate Adapter
    Up to two Token-Ring Network adapters may be installed in a computer, either as  Primary, (accessed at 0A20 through 0A23), or Alternate (accessed at 0A24 through 0A27). If one Token-Ring Network adapter is installed, it may be either Primary or Alternate. If two are installed, one must be Primary and the other Alternate. 
    < "Primary" 0A20h - 0A23h>,  "Alternate" 0A24h - 0A27h

Adapter Data Rate
   The data rate must be set to the same rate (4 or 16 Mbps) as the Token-Ring Network to which you are connecting the adapter. The 4MB TR card doesn't have a choice, it's 4MB only. If you attach a 4MB adapter to a 16MB network, the network will automatically drop to the 4MB/sec rate. In short, don't mix speeds! 
    <"16 Mbps">, 4 Mbps

ROM Address Range
   There are 12 possible 8K blocks of memory that can be assigned for accessing the ROM area of the Token-Ring Network adapter. The preferred ROM address is CC000-CDFFF. 

RAM Size and Address Range
    There are 30 possible blocks of memory that can be assigned for accessing the RAM located on the 16/4 Token-Ring Network adapter. The preferred RAM Size and Address Range for the adapter, which allows RAM Paging, is: 16 KB / D8000-DBFFF. 

Interrupt Level
   This Token-Ring Network adapter can operate on one of four interrupt levels: 2, 3, 10, or 11.  The preferred interrupt level is 2. 
    <"Interrupt 2">, 3, 10, 11"

Adapter Media Type Selection
   This adapter supports two media types, STP and UTP.  If you select STP, your LAN cable must be attached to the 9-pin D-Shell connector on your adapter.  If you select UTP, your LAN cable must be attached to the RJ-45 jack on your adapter.  If your LAN cable is not attached to the selected media type, the adapter will exhibit a LOBE MEDIA FAILURE. If your Token-Ring adapter only has the 9-pin D-Shell connector, the Media Type Selection will be ignored.
   <"STP">, UTP

Enable or Disable RPL
   This adapter can be used in a medialess system by enabling the Remote Program Load (RPL) or vice versa when chosing DISABLED.  BEWARE:  if RPL is ENABLED, some high level software programs (eg.  some server software) may require that the adapter be configured as the primary adapter.  If your Token-Ring adapter has a separate RPL module socket, the Enable or Disable RPL option will have no effect
    <"Enabled">, Disabled