William Walsh tacked down a bit of stuff, which formed the genesis of this page.

Ed. Some confusion yet over card numbers. We see a E3020, but it isn't listed in the parts numbers. Oh well, empirical evidence wins out every time.

@0050.ADF "Cabletron 4/16-Mbps Token Ring Adapter" (T3015)
@5600.ADF "Cabletron Ethernet Board E3020"
@5601.ADF "Cabletron Ethernet Board E3020-X"
@5602.ADF "Cabletron Ethernet Board E3030"
@5603.ADF "Cabletron Ethernet Board E3030-X"
@5604.ADF "Cabletron Ethernet Board E3040"
@5605.ADF "Cabletron Ethernet Board E3040-X"
@5606.ADF "Cabletron Ethernet Board E3010"
@5607.ADF "Cabletron Ethernet Board E3010-X"
@5608.ADF "Cabletron Systems E3100 Series Ethernet Adapter w/ 16K RAM"
@5609.ADF "Cabletron Systems E3100-X Series Ethernet Adapter w/ 64K RAM"
@0070.ADF "Cabletron Systems Inc. F3069 FDDI Adapter"

e30win95.zip
e30xx.zip
e31nt35.zip
e31r1.zip
e31win95.zip

Adapter	Release Disk	W9x	NT3.51	NT4.0	NW DOS/ODI	NW Server	Win3.11 Real	Win3.11 Enhanced
E30xx MCA	e30xx.zip	e30win95.zip	N/A	N/A	e30odi.zip	e30nw.zip	e30nd2.zip	e30nd3.zip
E31xx MCA	e31r1.zip	e31win95.zip	e31nt35.zip		e31odi.zip	e31nw.zip	e31nd2.zip	e31nd3.zip
T30xx MCA	t2-3v203.zip	t30win95.zip	N/A	N/A	t20odi.zip	netware4.zip	t30nd2.zip	t30nd3.zip
F30xx MCA	f3-7v204.zip	N/A	f30nt35.zip	f30nt40.zip	N/A	f30nw.zip	N/A	N/A

E1100, E2100, And E3100 Series Ethernet Network Adapters Installation Guide
Installation Guide For F30x9 FDDI Adapters
T2015 / T3015 Token-Ring Network Adapter Installation Guide
Quick Reference Guide For Network Troubleshooting
Token Ring Technology Overview
ATM Technology Guide
Ethernet Technology Guide

Ethernet Adapter Model Number Reference

E	21	1	2	-X
Topology	Bus Type	1st Media	2nd Media	Options
E- Ethernet	11 – XT	0 – AUI	0 – AUI	-X Large Memory
	21 – AT	1 - Tw Pair	1 - Tw Pair
	31 – MC	2 – Coax	2 – Coax
		3 – Fiber SMA	3 - Fiber SMA
		4 – Fiber ST	4 - Fiber ST
			9 - N/A

Standard and Large Memory - E3100 Series - 16 KB, E3100-X Series - 64 KB

The Boot PROM is configured with the necessary parameters when configuring the Adapter Description File

Cabletron MCA Network Interface Cards (10baseT, 10base2, Fiber)

This is probably as close to finished as it will ever be, what with the edit prior to this having been made in early September, 2006. Cabletron and Enterasys are both long gone and none of their successor companies appear to have any support materials whatsoever for these old products. This page wasn't linked to or from anything, and I'd totally forgotten about it until I started down the road of configuring an E3100 found in my computer storage shed. (03/2016)

PC Magazine's announcement of the E2010/E3010 ($649, whee!) cards, via Google Books.

Has anyone ever seen the fiber version of the E30xx cards? Tell me!

Cabletron E3100

Parts in grey are not populated on this adapter. Most are for a coaxial version of this card.

Cabletron E3110

Cabletron E3020

Yes, I know there are two "T2" entries on the outline above. Maybe I will even fix it. Blame the folks who can't label a PCB with component IDs. All component IDs are made up except for U7 and U23. Both of those items are shown with their correct component IDs.

Total Hardware '99 disagrees regarding the red and yellow LEDs. Red is claimed to indicate collisions, yellow the transmission of data. I think I've got it right, but who knows this many years later?

Fuse

The function of F1 (fuse) appears to be protection against too much current draw through the AUI port. It is socketed, so you can replace it with another 2AG fuse. Just be sure you've solved the overload problem first, otherwise you may risk damage to the board traces from prolonged or repeated overcurrent conditions. (The linked PC Magazine article says the fuse is for "for extra protection of transient voltages that might, through accident or miswiring, be imposed on the LAN wiring".)

Cabletron E3010

Sorry folks, nearly all the component IDs are made up. I'd guess the actual IDs are hidden under the components, and I'm not about to unsolder them. This is more or less a TP cable version of the E3020.

Enterasys says the following about the SQE Test setting:
The Signal Quality Error (SQE) Test Switch allow you to enable or disable the SQE ("hearbeat") internal test function on the DNI Card. You generally disable the SQE, unless you are checking the validity of the SQE Test. The SQE Test signal does not leave the card. If the DNI Card is attached to the network through the AUI port, the SQE should be set in the external transceiver. The SQE is disabled when the card is shipped.

Total Hardware '99 disagrees regarding the red and yellow LEDs. Red is claimed to indicate collisions, yellow the transmission of data. I think I've got it right, but who knows this many years later?

Fuse

The function of F1 (fuse) appears to be protection against too much current draw through the AUI port. It is socketed, so you can replace it with another 2AG fuse. Just be sure you've solved the overload problem first, otherwise you may risk damage to the board traces from prolonged or repeated overcurrent conditions. (The linked PC Magazine article says the fuse is for "for extra protection of transient voltages that might, through accident or miswiring, be imposed on the LAN wiring".)

Experiences

I've used this card in a Model 53SLC2 for some time with good results. The built in Windows 95 drivers run the card well and are reliable.

Windows

All of the Cabletron Ethernet adapters I have (E3010, E3020, E3100) perform well under Windows 95 and 98 with the available or included drivers. Windows NT doesn't appear to be supported (unless there are built in drivers, which there are not for the E3100 models) beyond version 3.5. Loading the NT 3.5 drivers results in the message "a device attached to the system is not functioning" in the event log. (This could be a by-product of the slot counting bug, first fixed in Service Pack 3 for NT4.)

The E3100 board appears to be a "shared RAM" type...

Ethernet Adapter Model Number Reference

Cabletron T3015

Setting the Clock Source Jumper JP1
In most computers, the DNI Card will use its own clock source (asynchronous mode). If the DNI Card uses the system's clock source, the board runs in synchronous mode.

Set the bus timing jumper as follows:
Place the shunt over pins 1 and 2 to use asynchronous clock source (default setting). Model 50 compatibility)
Place the shunt over pins 2 and 3 to use a synchronous clock source (Model 70 and 80 compatibility)

Cabletron FDDI Adapter Model Number Reference

F	30	1	9
Topology	Bus Type	1st Media
F- FDDI	30 – MC	1 – UTP
		5 - STP
		6 - MMF
		7 - SMF
	70 - EISA	1 – UTP
		5 - STP
		6 - MMF
		7 - SMF
			9 - N/A

Part Numbers

Ethernet DNI Cards Part Numbers For 16 BIT Microchannel Bus
Model E31xx Shared Memory DNI cards s (There are no Paged Mode micro-channel DNI cards.)
E3110 .......... 9050340
E3112 .......... 9050421
E3113 .......... 9050610
E3114 .......... 9050600
E3119 .......... 9050422
E3110-X .......... 9050432
E3112-X .......... 9050433
E3113-X .......... 9050611
E3114-X .......... 9040612
E3119-X .......... 9050431

TOKEN RING DNI Cards Part Numbers For Microchannel Bus
T3015 .......... 9050277 .......... Microchannel Bus, 16 BIT
T3015 .......... 9050340 .......... Microchannel Bus, 16 BIT, SMD

FDDI DNI Cards Part Numbers For Microchannel Bus
F3019, SAS .......... 9050832
F3019, DAS .......... 9050747
F3059, SAS .......... 9050871
F3059, DAS .......... 9050875
F3069, SAS .......... 9050489
F3069, DAS .......... 9050808
F3079, SAS .......... 9050872
F3079, DAS .......... 9050876

FDDI DNI .......... There are no boot proms for FDDI cards