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Apple Ethernet cards

From RetroTechCollection
Apple Ethernet cards
An Apple Ethernet NB Card (photo: Drinebold, CC BY-SA 4.0)
Manufacturer Apple Computer (EtherTalk cards built by 3Com)
Type Ethernet network interface cards
Release date 1987
Interface NuBus, LC processor-direct slot, communications slot I and II
Compatible Macintosh II family, Quadra, Centris, LC family, Color Classic, Performa and Power Macintosh models with a matching slot

Apple Ethernet cards are the network interface cards Apple sold to put Macintosh computers without built-in Ethernet onto 10 Mbit/s Ethernet. The first was the EtherTalk Interface Card for the Macintosh II, introduced with EtherTalk 1.0 software in August 1987 and later renamed the EtherTalk NB Card.[1] It was followed by the Ethernet NB Card for NuBus, the Ethernet LC Card for the LC processor-direct slot, and cards for the communications slots of the LC 575, 630, 5200 and later families.

Apple Ethernet cards
Card Slot Order number Service part Network connector
EtherTalk Interface Card / EtherTalk NB Card NuBus M0410LL/A 661-0414 (Rev. A-K), 661-0496 BNC and 15-pin AUI
Ethernet NB Card NuBus M0417LL/A, M0417LL/B 661-0619 Apple Ethernet (AAUI)
Ethernet NB Twisted-Pair Card NuBus M1768Z/A 661-0869 RJ-45 (10BASE-T)
Ethernet LC Card LC PDS M0443LL/A to /C 661-0621 Apple Ethernet
Ethernet LC Twisted-Pair Card LC PDS M2460Z/A 661-0226 RJ-45 (10BASE-T)
Ethernet CS Twisted Pair Card Comm slot I M3065Z/A 661-0888 10BASE-T
Ethernet CS Thin Coax Card Comm slot I M2708Z/A 661-0036 Thin coax (10BASE2)
Ethernet CS AAUI Card Comm slot I M3066Z/A 661-0889 AAUI
Ethernet CS II cards Comm slot II M4772ZM/A, M4773ZM/A, M4774ZM/A – 10BASE-T, 10BASE2 or AAUI

Order numbers are from Apple's Tech Info Library and service parts from its 1994 module identification manual.[2][3][4][5][6][7][8]

EtherTalk cards

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Apple bought the EtherTalk card from 3Com and sold it under its own name; 3Com sold the same board as the EtherLink NB.[9] The card has a BNC connector for thin Ethernet with an on-board transceiver, selected by a jumper, and a 15-pin AUI connector for an external transceiver on thick Ethernet. Apple gives the power as 6.5 W maximum from +5 V and 3.6 W from +12 V, with 32K of ROM.[10][11] Its two specification sheets give 16K and 64K of dual-ported packet buffer RAM; the revision history says the larger 64K buffers came with revision L.[11][10][1] Each card carries its own Ethernet address, stored on the card and printed on a label on the back of the board.[12]

Revisions

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EtherTalk card revisions
Revision Date Apple assembly Change
A to D 1987 – First production
J March 1988 2680-06 Fixed rare data corruption when the card retransmitted a packet after a collision, and a clash with NuBus cards using addresses in the $xxxFxxx range. Reworked earlier cards were relabelled G to J (A became G, B became H and so on).
K January 1989 2680-07 Fixed timing that assumed a six-slot NuBus machine, which upset three-slot machines such as the IIcx
L December 1989 2680-08 New layout with new ROMs and no cuts and jumpers; larger buffers; NuBus fixes needed by the IIfx
M November 1990 2680-08 Manufacturing process change only

Dates and changes are from Apple's EtherTalk history; assembly numbers from its revision list.[1][9][13] Apple offered a free upgrade to revision J from May to October 1988, but no upgrade to K or L.[1]

Apple's articles do not agree on which revisions suit which machine. All accept J, K, L or M in the Macintosh II and IIx, and K or later in the IIcx. The 1991 revision list asks for L or M in the IIfx, IIsi and IIci; the EtherTalk history and the System 7 note also accept K in the IIfx, and K in the IIci only without on-board video.[9][1][2] On a IIci a revision K card with EtherTalk 2.0.1 or 2.0.2 runs slowly when on-board video is set to 4 colours or more. Fit a revision L or M card, use a video card, or run on-board video in black and white.[14]

Software

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EtherTalk 2.0 (June 1989) added AppleTalk Phase 2 and changed the packet format, so 2.0 nodes cannot see 1.x nodes without a router running both. EtherTalk 2.0.1 (October 1989) and 2.0.2 (March 1990) only changed the .ENET driver in the System file, adding delays to suit the faster IIcx, IIci and IIfx; the EtherTalk file in the System Folder kept the same version.[1] Apple gave a limit of 254 active EtherTalk users, bridges included, on one Ethernet. A Macintosh II with an EtherTalk card cannot bridge LocalTalk and Ethernet by itself.[12]

Testing

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Apple's bench test is MacTest II, which has a one-card test and a two-card test against a known-good card. Set the jumper to thin cable and fit a BNC T-connector with two terminators from kit 077-0256 as a loopback. For the two-card test, link the two cards with thin net test cable 077-0257, with a T-connector and terminator at each end. The two-card test finds faults the one-card test misses, and neither test checks the 15-pin thick Ethernet connector. Reset the jumper before the card goes back into use.[15] The later MacTest MP test for the EtherTalk NB card runs on the II, IIx, IIcx and IIfx but not the IIci or IIsi.[16]

Ethernet NB Card

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The Ethernet NB Card is a NuBus bus-master card with its own Motorola 68000 at 10 MHz, memory and real-time multitasking operating system, and a National Semiconductor DP83932 SONIC controller.[17][18] It has 512K of RAM as four surface-mounted 256K × 4 SOJ chips, and four ZIP sockets for a further 512K (four 256K × 4 chips) or 2 MB (four 1M × 4 chips), at 120 ns or faster; Apple's own upgrade was M0145LL/A and its suggested part the Toshiba TC514400AZ.[19][18] The card works internally on a 16-bit path, and its processor mostly manages DMA.[20] Apple put the built-in Ethernet of a Quadra at 15 to 20 per cent faster, because it uses DMA to main memory, avoids NuBus transfers and runs at the system bus clock.[21] Remove the RAM chips from the ZIP sockets before returning a card to Apple for exchange.[8]

The network connector is Apple's Ethernet port, the 14-position AAUI. A media adapter plugs into it: the Apple Ethernet Thin Coax Transceiver (M0329LL/A), the Twisted-Pair Transceiver (M0437LL/A) or the AUI Adapter (M0432LL/A) for thick coax and other media.[17][22] Keep AAUI cables under 1.5 m.[23]

Apple's power figures differ between sheets: 3.96 W at 5 V in one note, and 7.5 W maximum with a 4 W average in the 1993 specification. The same note gives 13.9 W as the recommended limit per NuBus slot and 1.165 A as the card's total draw with an external AAUI transceiver.[23][3] The card needs a NuBus slot, or the NuBus adapter in a IIsi or Quadra 610, System 6.0.4 or later or A/UX 2.0, and AppleTalk Phase 2 on the network.[18][3]

Ethernet NB Twisted-Pair Card

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The NB Twisted-Pair Card has a built-in RJ-45 10BASE-T port, 128K of RAM and a DP83934 SONIC-T controller, and draws 3.75 W at most (2 W average). It needs an IEEE 802.3 10BASE-T hub.[3]

Ethernet LC Card

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The Ethernet LC Card fits the processor-direct slot of the Macintosh LC family, the Color Classic and the Quadra 605. It uses the DP83932 SONIC, draws under 4 W and has the same Apple Ethernet port and media adapters as the Ethernet NB Card.[24][4][5] Like the NB card it uses a 16-bit data path.[20] In the 630 family it goes in the LC PDS slot, which lets a 630 have an internal modem in the communications slot as well as Ethernet.[25]

The card needs a newer ROM in later machines. The LC II needs a ROM upgrade carrying a new driver.[26] In the LC III and LC 575 an old card gives "could not switch to EtherTalk" when Ethernet is selected; the cure is a card with the new ROM and EtherTalk installed from System 7.1 or later disks.[27] The new card is board assembly 670-2008 and the old one 670-4443 with ROM 341-0842. Apple's Tech Info Library gives the new ROM as 341-0470 and its module identification manual as 341-4070, introduced in March 1992.[27][8] The Macintosh Processor Upgrade cannot be fitted while an LC-style card such as this one is in place.[28]

Ethernet LC Twisted-Pair Card

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An Ethernet LC Twisted-Pair Card, board 820-0532-B, with its SONIC-T controller and RJ-45 port (photo: Alistair1978, CC BY-SA 2.5)

The LC Twisted-Pair Card has a built-in RJ-45 10BASE-T port and a DP83934 SONIC-T controller, and draws 1.5 W at most (1 W average).[4]

Twisted-pair and thin coax cards

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Apple's cards reach the three Ethernet media in two ways. Cards with the Apple Ethernet port (Ethernet NB, Ethernet LC, Ethernet CS AAUI) take an external transceiver: thin coax (10BASE2) through the Thin Coax Transceiver, unshielded twisted pair (10BASE-T) through the Twisted-Pair Transceiver, and thick coax or fibre through the AUI Adapter. Other cards have the transceiver built in: the NB and LC Twisted-Pair cards have an RJ-45 port, the CS Twisted Pair card connects to 10BASE-T, and the CS Thin Coax card connects straight to 10BASE2 thin coax.[17][3][4][6] The comm slot II range repeats the choice with a 10BASE-T, a 10BASE2 and an AAUI card.[7]

On thin coax, the Thin Coax Transceiver terminates the cable itself when one of its two BNC connectors is free, and Apple's 5 m and 13 m cables terminate when an end is left unconnected. An older EtherTalk NB card at the end of a segment needs a terminator on its T-connector.[29] Apple's NB hardware has no way to turn off the 10BASE-T link beat signal, so it will not work with early twisted-pair hubs that cannot handle link beat.[30]

Communications slot cards

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The communications slot first appeared in the Macintosh LC 575, where Apple's developer note calls it a socket for a communications interface that is not a general expansion connector.[31] It is a 112-pin slot with a 32-bit data path, used in the 575, 630, 5200 and 5300 families and the Performa 6200 and 6300 series. Apple made four cards for it: the Ethernet CS Twisted Pair Card, the Ethernet CS Thin Coax Card, the Ethernet CS AAUI Card and the Express Fax/Modem.[6] All of them work in the Performa 575.[32] A machine has only one communications slot, so it takes either the modem or an Ethernet card there.[25] The Apple IIe Card does not work in an LC 575 with anything fitted in the communications slot.[33]

Apple later named this slot comm slot I to tell it apart from the PCI-based slot in the Power Macintosh 5400.[6]

Comm slot II cards

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Comm slot II, in the Power Macintosh 5400, 5500, 6400 and 6500 and the Performa 6360 and 6400, is a PCI-based 112-pin slot. It is keyed at the opposite end from comm slot I, so a comm slot I card lined up with the notches would face the wrong way, and the two slots are not fully signal compatible. Only serial modem cards built with both cut-outs work in either.[7][34] The Ethernet CS II range has 10BASE-T (M4772ZM/A), 10BASE2 (M4773ZM/A) and AAUI (M4774ZM/A) cards; the 5400/120 and 6400/200 shipped with the 10BASE-T card.[7] The cards and their software work only under Open Transport.[35]

Troubleshooting

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Apple Ethernet card faults
Symptom Probable cause Action
IIcx fails to boot, crashes or runs the network very slowly, often with no other card fitted EtherTalk card older than revision K Fit a revision K or later card[1]
IIci network slow with on-board video at 4 colours or more Revision K EtherTalk card with EtherTalk 2.0.1 or 2.0.2 Use a revision L or M card, a video card, or 1-bit on-board video[14]
Ethernet NB card installed under System 7.0 or 7.0.1 but not working EtherTalk on those system disks has no Ethernet NB driver Install EtherTalk 2.5.1 or later[36]
"Could not switch to EtherTalk" with an Ethernet LC card in an LC III or LC 575 Card with the old ROM Use a card with the new ROM and install EtherTalk from System 7.1 or later[27]
Ethernet LC card not working in an LC II Old ROM and driver Fit the ROM upgrade[26]
No link to an old twisted-pair hub Card sends link beat, which the hub cannot handle Use a 10BASE-T hub[30]
Thin coax segment unreliable Missing termination at the end of the segment Leave a transceiver connector or cable end free, or fit a terminator to the T-connector[29]
Power Macintosh 5400 or 6400 cannot select EtherTalk Classic AppleTalk in use; the CS II card needs Open Transport Switch to Open Transport, restart and select Ethernet[35]
MacIPX error −43 on a comm slot II machine Missing Ethernet support for MacIPX Install the 6360/64xx/54xx Update or Mac OS 7.6[37]

For an EtherTalk card suspected of a hardware fault, run the loopback tests described under Testing.[15]

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References

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  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Apple Computer, "EtherTalk: History and User's Guide (3/95)", Tech Info Library article 5510 (TA42160), created 21 May 1990, revised 22 March 1995, in the archive.org collection APPLE_TIL_ARTICLES, file TIL00001_to_TIL09432.pdf. Source for: the EtherTalk Interface Card (later EtherTalk NB Card) and EtherTalk 1.0 introduced for the Macintosh II in August 1987; revisions A to D, J (March 1988), K (January 1989), L (December 1989); what each revision fixed; the free revision J upgrade of May to October 1988 and the G to J relabelling of reworked cards; EtherTalk software 1.2, 2.0, 2.0.1 and 2.0.2; the compatibility table by Macintosh model.
  2. ↑ 2.0 2.1 Apple Computer, "EtherTalk NB Card: System 7 and Compatibility Issues", Tech Info Library article 8296 (TA46748), created 13 June 1991, in the archive.org collection APPLE_TIL_ARTICLES, file TIL00001_to_TIL09432.pdf. Source for: no System 7 issues; order numbers M0410LL/A (EtherTalk NB) and M0417LL/A (Ethernet NB); revisions by model, with K, L or M given for the IIfx and Rev. J not working there.
  3. ↑ 3.0 3.1 3.2 3.3 3.4 Apple Computer, "Ethernet and Twisted-Pair NB Card: Specifications (10/93)", Tech Info Library article 13725 (TA30407), created 21 October 1993, in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: Ethernet NB power 7.5 W or less (average 4 W); NuBus adapters needed in the IIsi and Quadra 610; the NB Twisted-Pair Card's RJ-45 port, 128K RAM, DP83934 SONIC-T and 3.75 W (average 2 W); order numbers M0417LL/B and M1768Z/A.
  4. ↑ 4.0 4.1 4.2 4.3 Apple Computer, "Apple Ethernet LC and LC Twisted-Pair Card Descriptions (1/94)" and "Specifications (1/94)", Tech Info Library articles 14357 (TA30940) and 14358 (TA30941), created 5 January 1994, in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: support for all Macintosh LC models, the Color Classic and the Quadra 605; the LC Twisted-Pair Card's RJ-45 port, DP83934 SONIC-T and 1.5 W maximum (1 W average); order numbers M0443 and M2460Z/A; an LC-compatible processor-direct slot.
  5. ↑ 5.0 5.1 Apple Computer, "Color Classic: Apple IIe, Macintosh LC, & Ethernet Cards (2/93)", Tech Info Library article 11452, in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: the Ethernet LC Card (M0443LL/B) fitting the Color Classic, with a transceiver needed as well.
  6. ↑ 6.0 6.1 6.2 6.3 Apple Computer, "Communication Slot: Specifications (5/96)", Tech Info Library article 15081 (TA31498), revised 29 May 1996, in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: the computers with the slot; 112 pins and a 32-bit data path; the pinout; the four cards (Express Fax/Modem M2480LL/A, Ethernet CS Twisted Pair M3065Z/A, Ethernet CS Thin Coax M2708Z/A, Ethernet CS AAUI M3066Z/A); the names comm slot I and comm slot II.
  7. ↑ 7.0 7.1 7.2 7.3 Apple Computer, "Power Macintosh 5400 & Performa 6400: Communications Slot (11/96)", Tech Info Library article 19591, in the archive.org collection APPLE_TIL_ARTICLES, file TIL17065_to_TIL60496.pdf. Source for: the PCI-based 112-pin comm slot II; comm slot I cards not fitting because the slot is keyed at the opposite end, and the slots not being fully signal compatible; dual-keyed serial modem cards; the Ethernet CS II cards M4772ZM/A (10BASE-T), M4773ZM/A (10BASE2) and M4774ZM/A (AAUI); the 10BASE-T card fitted to the 5400/120 and 6400/200.
  8. ↑ 8.0 8.1 8.2 Apple Computer, Module Identification, part number 072-8124, June 1994, hosted as File:Apple Service Module Identification Manual (June 1994).pdf, "Interface Cards": EtherTalk Card (Rev. A-K) 661-0414 p. 4.2.1; EtherTalk NB Card 661-0496 p. 4.2.2; Ethernet NB Card 661-0619 p. 4.2.3 (remove the RAM chips before returning it); Ethernet NB Twisted Pair Card 661-0869 p. 4.2.9; Ethernet LC/LC II card 661-0621 p. 4.3.3 (new version with ROM 341-4070 and board assembly 670-2008, ROM introduced March 1992; older version ROM 341-0842, assembly 670-4443); LC 575 comm slot cards: 10BASE-T 661-0888 p. 4.3.6, AAUI 661-0889 p. 4.3.7, thin-net 661-0036 p. 4.3.8; Ethernet LC Twisted Pair Card 661-0226 p. 4.3.9.
  9. ↑ 9.0 9.1 9.2 Apple Computer, "EtherTalk NB and EtherLink NB: Revision Numbers", Tech Info Library article 6760 (TA45205), created 6 February 1991, in the archive.org collection APPLE_TIL_ARTICLES, file TIL00001_to_TIL09432.pdf. Source for: Apple buying the card from 3Com; Apple assembly numbers 2680-06 (Rev. J), 2680-07 (Rev. K) and 2680-08 (Rev. L and M) against 3Com EtherLink NB assemblies 4042-02 to 4042-04; the compatibility list (II and IIx: J, K, L or M; IIcx: K, L or M; IIfx, IIsi and IIci: L or M).
  10. ↑ 10.0 10.1 Apple Computer, "Apple EtherTalk NB Card: Specifications (Discontinued)", Tech Info Library article 6948, created 14 March 1991, in the archive.org collection APPLE_TIL_ARTICLES, file TIL00001_to_TIL09432.pdf. Source for: BNC and 15-pin AUI connectors; on-board thin Ethernet transceiver, jumper-selectable; 64K of dual-ported packet RAM; 32K of ROM; +5 V 6.5 W and +12 V 3.6 W maximum; 0 to 55 °C.
  11. ↑ 11.0 11.1 Apple Computer, "Macintosh II EtherTalk NB Interface Card: Specs (Discontinued)", Tech Info Library article 6992, created 15 March 1991, in the archive.org collection APPLE_TIL_ARTICLES, file TIL00001_to_TIL09432.pdf. Source for: the same connectors and power figures with 16K of dual-ported packet memory.
  12. ↑ 12.0 12.1 Apple Computer, "EtherTalk: Ethernet Connectivity for the Macintosh II", Tech Info Library article 916 (TA47502), created 16 October 1987, in the archive.org collection APPLE_TIL_ARTICLES (retrieved 2026-10-04), file TIL00001_to_TIL09432.pdf. Source for: a unique Ethernet address on each card, also printed on a label on the back of the board; up to 10 Mbit/s; configuration for thick or thin Ethernet; a limit of 254 active EtherTalk users on one Ethernet; a Macintosh II with EtherTalk cannot act as a LocalTalk-to-Ethernet bridge, and no bridging software was included.
  13. ↑ Apple Computer, "EtherTalk NB Card: Revisions L and M Are Functionally Identical", Tech Info Library article 6332 (TA44898), created 15 November 1990, in the archive.org collection APPLE_TIL_ARTICLES, file TIL00001_to_TIL09432.pdf. Source for: revision M shipping from 14 November 1990, changed only for a manufacturing process change.
  14. ↑ 14.0 14.1 Apple Computer, "EtherTalk NB Revision K card: Problem with Macintosh IIci", Tech Info Library article 5320 (TA41077), created 21 March 1990, in the archive.org collection APPLE_TIL_ARTICLES, file TIL00001_to_TIL09432.pdf. Source for: degraded Ethernet performance with a Rev. K card, EtherTalk 2.0.1 or 2.0.2 and IIci on-board video at 2 bits or more; the workarounds; Rev. L shipping since December 1989.
  15. ↑ 15.0 15.1 Apple Computer, "EtherTalk Interface Card: General Troubleshooting", Tech Info Library articles 1270 (part 1) and 1261 (part 2), last reviewed 16 November 1987, in the archive.org collection APPLE_TIL_ARTICLES, file TIL00001_to_TIL09432.pdf. Source for: the MacTest II one-card and two-card tests, terminator kit 077-0256 and thin net test cable 077-0257, setting the jumper for thin cable during testing, and neither test checking the DB-15 thick Ethernet connector.
  16. ↑ Apple Computer, Apple Service Technical Procedures: Macintosh Family, Volume Two (March 1992), "Multiple-Product Diagnostics", MacTest MP p. 1.6 (rev. Nov 1991): MacTest MP's EtherTalk NB Card test works on the Macintosh II, IIx, IIcx and IIfx but not the IIci and IIsi. Archive.org item bitsavers_appleserviviceTechnicalProceduresMacintoshFamilyVo_19357769 (retrieved 2026-10-04).
  17. ↑ 17.0 17.1 17.2 Apple Computer, "Apple Ethernet NB Card: Description (Discontinued)", Tech Info Library article 10274, created 26 May 1992, in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: a bus master NuBus card with its own 68000, memory and real-time multitasking operating system; the Apple Ethernet port and media adapters for thin coax, thick coax and twisted pair; order numbers M0417LL/A, M0432LL/A, M0329LL/A, M0833LL/A, M0436LL/A, M0437LL/A.
  18. ↑ 18.0 18.1 18.2 Apple Computer, "Apple Ethernet NB Card: Specifications", Tech Info Library article 10792, created 29 September 1992, in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: 68000 at 10 MHz; 512K RAM, expandable to 1 MB with M0145LL/A or 2.5 MB with third-party modules; DP83932 SONIC controller; one NuBus slot or the IIsi NuBus Adapter Card; System 6.0.4 or A/UX 2.0; AppleTalk Phase 2.
  19. ↑ Apple Computer, "Apple Ethernet NB Card: Expansion RAM Specifications (4/95)", Tech Info Library article 11116, in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: 512K of surface-mounted DRAM as four 256K × 4 SOJ chips; four ZIP sockets; upgrades of four 256K × 4 or four 1M × 4 ZIP chips at 120 ns or faster; Toshiba TC514400AZ; 16-bit access by the 68000 and SONIC.
  20. ↑ 20.0 20.1 Apple Computer, "Apple Ethernet NB Card: 16-bit Bus Path and Tasks (10/91)", Tech Info Library article 9151 (TA47496), and "Ethernet NB Card and Quadra Built-in Ethernet: Bus Width", article 11027, in the archive.org collection APPLE_TIL_ARTICLES, files TIL00001_to_TIL09432.pdf and TIL09433_to_TIL17062.pdf. Source for: the 16-bit data path of the Ethernet NB and Ethernet LC cards; few tasks downloaded to the card, its processor mostly managing DMA.
  21. ↑ Apple Computer, "Built-In and NuBus Ethernet Maximum Transfer Rate (3/96)", Tech Info Library article 12000, in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: built-in Ethernet being about 15 to 20 per cent faster than the Ethernet NB card.
  22. ↑ Apple Computer, "Ethernet: AAUI Connector Pinouts (3/96)", Tech Info Library article 8863 (TA47266), in the archive.org collection APPLE_TIL_ARTICLES, file TIL00001_to_TIL09432.pdf. Source for: the 14-position 0.050-inch AAUI connector on Quadra computers, the Ethernet NB card and the LaserWriter IIg, and its pinout.
  23. ↑ 23.0 23.1 Apple Computer, "Apple Ethernet NB Card: Power Consumption", Tech Info Library article 7914 (TA46485), in the archive.org collection APPLE_TIL_ARTICLES, file TIL00001_to_TIL09432.pdf. Source for: 3.96 W at 5 V; 13.9 W recommended limit per NuBus slot; 1.165 A overall including an external AAUI transceiver; AAUI cable no longer than 1.5 m.
  24. ↑ Apple Computer, "Apple Ethernet LC Card: Description (Discontinued)" and "Apple Ethernet LC Card: Specifications", Tech Info Library articles 10272 and 10273, created 26 May 1992, in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: the card for the Macintosh LC; order number M0443LL/A; the Apple Ethernet connector and media adapters; DP83932 SONIC; under 4 W; 10 to 40 °C; AppleTalk Phase 2.
  25. ↑ 25.0 25.1 Apple Computer, "Macintosh 630 Family of Computers: Modems and Ethernet (8/94)", Tech Info Library article 16018 (TA32256), revised 25 April 1995, in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: one communications slot only; a modem and Ethernet together needing the Express Fax/Modem in the comm slot and an LC Ethernet card in the LC PDS slot.
  26. ↑ 26.0 26.1 Apple Computer, "Macintosh LC II: LC Ethernet Card Requires New Driver", Tech Info Library article 9944 (TA48266), in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: the card needing a ROM upgrade with a new driver for the LC II.
  27. ↑ 27.0 27.1 27.2 Apple Computer, "LC III & LC 575: Use Latest ROMs in Ethernet LC Card (12/94)", Tech Info Library article 11577, in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: the "could not switch to EtherTalk" error with an old card; new card assembly 670-2008 with ROM 341-0470, old assembly 670-4443 with ROM 341-0842; installing EtherTalk from System 7.1 or later.
  28. ↑ Apple Computer, "Macintosh Processor Upgrade: PDS and Comm Slot Usage (4/97)", Tech Info Library article 16298 (TA32507), in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: the Macintosh Processor Upgrade not fitting with an LC-style card such as the Ethernet LC card; the communications slot remaining usable.
  29. ↑ 29.0 29.1 Apple Computer, "Ethernet NB Card: Cables, Connections, Termination (11/94)", Tech Info Library article 9149 (TA47493), in the archive.org collection APPLE_TIL_ARTICLES, file TIL00001_to_TIL09432.pdf. Source for: termination by the Thin Coax Transceiver and self-terminating cables only when a connector or cable end is free; a T connector at the end of the network on an EtherTalk NB card needing a terminator; EtherTalk NB and Ethernet NB cards mixing on one network.
  30. ↑ 30.0 30.1 Apple Computer, "Apple Ethernet NB Card: No Option to Disable Link Beat Signal", Tech Info Library article 9693 (TA48077), in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: no way to turn off link beat; early hubs that cannot work with it.
  31. ↑ Apple Computer, Macintosh LC 575 Developer Note (1994), hosted as File:Macintosh LC 575 Developer Note.pdf (see Macintosh LC 575 Developer Note), "Communications Options". Source for: the internal communications interface socket taking a 14.4 modem, an AUI Ethernet interface or a 10BASE-T Ethernet interface, and the socket not being an expansion connector.
  32. ↑ Apple Computer, "Performa 575: Using LC 575 Communication Cards (5/94)", Tech Info Library article 15356 (TA31706), in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: all LC 575 communication slot options being supported in the Performa 575.
  33. ↑ Apple Computer, "Apple IIe Card: Can't Use Comm slot device With Card (9/96)", Tech Info Library article 15065 (TA31483), in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: the Apple IIe Card not working when any device is fitted in the comm slot of the LC 575.
  34. ↑ Apple Computer, Power Macintosh 5500 and 6500 Computers Developer Note (1997), hosted as File:Power Macintosh 5500 and 6500 Computers Developer Note (1997).pdf (see Power Macintosh 5500 and 6500 Computers Developer Note), "Communications" and "Compatibility Issues". Source for: the PCI-based comm slot II, the same as in the Performa 6400 and Power Macintosh 5400; the cards supported (10BASE-T, 10BASE2 and AAUI Ethernet cards and a 28.8 or 33.6 modem); comm slot I cards not compatible.
  35. ↑ 35.0 35.1 Apple Computer, "Power Macintosh 5400 & 6400: Switching to Ethernet (10/96)", Tech Info Library article 19921 (TA35608), in the archive.org collection APPLE_TIL_ARTICLES, file TIL17065_to_TIL60496.pdf. Source for: the Apple Ethernet CS II card and software working only under Open Transport.
  36. ↑ Apple Computer, "Ethernet NB Card: Install EtherTalk 2.5.1 or Later", Tech Info Library article 9801 (TA48143), in the archive.org collection APPLE_TIL_ARTICLES, file TIL09433_to_TIL17062.pdf. Source for: the EtherTalk software on the System 7.0 and 7.0.1 disks installing no driver for the Ethernet NB card; the NSI 1.1 disk.
  37. ↑ Apple Computer, "MacIPX and Comm Slot II Ethernet Errors (4/97)", Tech Info Library article 20175 (TA35801), in the archive.org collection APPLE_TIL_ARTICLES, file TIL17065_to_TIL60496.pdf. Source for: error −43 when selecting Ethernet in MacIPX on the 5400, 6400 and 6360; the 6360/64xx/54xx Update, rolled into Mac OS 7.6.


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