EtherStreamer MC 32

@8FA8.ADF IBM EtherStreamer MC32 Adapter

193-175 IBM EtherStreamer MC 32 Adapter

ETMES.EXE EtherStreamer Adapter - Option/Drivers Diskette v2.0 (zipped image)
strflash.exe Flash microcode disk for EtherStreamer MC 32 (Caution with Server 520s!)
strlog.exe Streamer log utility for EtherStreamer MC 32
strndis3.exe NDIS3 drivers for MS WfW/95/NT 3.51 for EtherStreamer MC 32 (readme)
strs720.exe Driver support for Server 720 for EtherStreamer MC 32
TRPALS4.EXE Auto LS PCI (!) NDIS3 WfW/W95/NT drivers ver 3.04

Streamers - General Information

Full Duplex Ethernet Adapter (TDB)

EtherStreamer MC 32
C14 Connector Trivia
Microcode Levels
Known Problems

EtherStreamer MC 32 "Dunes", FRU P/N 74G0865 [P] [P]

F1 Transorb
P2 RJ-45 connector
P4 C14 connector
P5 BNC connector
S1 NS DPADP10 Eth. frontend
S2 59G9073
S3 60G0663 or 73G2692 MPC
S4 Valor PM7202 5V to 9V DC/DC
T1,2 Bel transformer
U1 TC5589J-20 or -25 8Kx8 SRAM
U2 Valor FL1066
U3 63G9811 MCA BM
U4 Valor ST4129
U6 59G9075
U12 59G9077
U23 74F08
Y1,2 40.0000 MHz osc

S3 60G0663 or 73G2692 MPC (Multi-Protocol Chip) contains a Token Ring and Ethernet MAC.

U3 63G9811 MCA bus master interface chip "Maunakea".

From Peter Wendt (edited):
  It has 3 physical interfaces: RJ45 UTP, BNC Coax and "the odd looking female" is a mini-centronics 14-pin AUI for Thickwire - as used on some Apples. This is the port that is present as 15-pin Sub-D on most "generic" Ethernet cards.

EtherStreamer MC 32 Early "Dunes", FRU P/N 73G7141, P/N 73G7122(A) [P]

Same as the newer revision above except the PCB doesn't have a provision for the 74F08 Quad-AND (U23). Instead the IC (EC) is glued to the board (on a piece of kapton tape). It's wired to the DPADP10 frontend chip. A similar rework can be found on early Dual ES 32 adapters.

C14 Connector Trivia (from Bradley Parker)

Yup, the one on the EtherStreamer. What connects to it you ask <alt>? I have boxes of stuff that connect... Farllon (?) or whatever their name is made tons of really cool stuff too. I checked. It's Farallon. They appear to be located in San Leandro, CA.

Connect the early PowerMacs to Ethernet. The most common is a "Y" type adapter that has the friendly net connector (C14?) on the bottom, and two RJ45s at the top.

The "Y" type adapter mentioned is a "Farallon Etherwave AAUI Transceiver". They call the mini centronics "C14" connector an "AAUI" connector.

 10BT Port____________ ____________ ______//____ _____ etc...
                      Y            Y     //     Y
                     NIC          NIC          NIC

You can chain several devices on one 10BT port by using regular 10BT cables and going from one adapter to the next using the RJ45 ports. Obviously performance isn't going to be optimal. The little collision LEDs on the "Y" units light up frequently. Other connectors include a wireless tranceiver, one that adapts the C14 to AUI, and other hub type deals that act as printservers for AppleTalk printers and LJs with serial ports.

Microcode Levels (EtherStreamer & Dual EtherStreamer)

The microcode has a common base and evolves; therefore, changes are cumulative. Some changes are based on adding new adapters to the Streamer family (adding PCI adapters, multi port adapters). Significant functional changes between levels are as follows.

ACB3Fixes to ethernet full duplex operation
B3B4Corrected error code 0800 (ICD bus parity error)
Reprioritized handling of frames based on frame types to prevent timeouts in managed networks
C4C7Fix to RIPL
C7CBChanges how AutoSense works (see NOTE below)
CBCCAdds TRFDX (token-ring Full Duplex) support - "BETA"
CCCGChanges to TRFDX, fix a cable sense problem in 'CC', fixes to RPL on PCI adapters
CGD0Minor changes for FDX Draft 4 compatibility

Note: To establish compatibility with some speed-detecting hubs (i.e. 3Com and Synoptics) the AUTOSENSE algorithm has been changed. Microcode prior to 'CB' would allow an adapter set to AUTOSENSE, which had a 'saved speed', to be the first to open on a ring; this is no longer the case. It is still recommended that any servers have their adapters set to fixed speeds (16 or 4).

Known Problems

Slot 8 Incompatibility in 8595 and 9595 (SF2223)

Content created and/or collected by:
Louis Ohland, Peter Wendt, David Beem, William Walsh, Tatsuo Sunagawa, Jim Shorney, Tim Clarke, Kevin Bowling, Tomáš Slavotínek, and many others.

Ardent Tool of Capitalism - MAD Edition! is maintained by Tomáš Slavotínek.
Last update: 25 Jun 2022 - Changes & Credits | Legal Info & Contact