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Rebuild from Deskthority + Guide to the Macintosh Family Hardware ch.8. TWO documented internal variants (Logitech, one screw, two boards; Mitsumi, two screws, one board), not four; no M2707 PowerBook Gray model is documented. Deleted unsourced US$89 price, dimensions, 140 g weight, 19/22 mm ball diameters, 36-slot encoder wheels, 940 nm LEDs, 200 Hz sampling, 10 in/s tracking speed, 50/100 mA draw, Pantone 423C, named optical-retrofit product, 6-million-unit production estimate and the month...
Rewrite with Apple's TIL 11227 specs (200 ppi, 10 mA, size, weight, M2706LL/A); page said Apple published no per-device current. Add grey M2707 (was 'no M2707 documented'); Apple's sticking-button procedure (TIL 18560); remove uncited scheduled-maintenance, fuse, clicks-rating and production-figure narration; ADB facts cited to Family Hardware pages; release_date fixed
 
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{{Infobox computer peripheral
{{Infobox computer peripheral
| name        = Apple Desktop Bus Mouse II
| name        = Apple Desktop Bus Mouse II
| image        = [[File:Apple-ADB-mouse.jpg|250px]]
| image        = [[File:Apple-ADB-mouse.jpg|260px|frameless]]
| caption      = Apple Desktop Bus Mouse II (Model M2706)
| caption      = Apple Desktop Bus Mouse II (M2706)
| manufacturer = Apple Computer, Inc. (built by Logitech and by Mitsumi)
| manufacturer = Apple Computer, Inc. (made by Logitech and Mitsumi)
| type        = Pointing device
| type        = Pointing device
| release date = 1993
| release_date = 1993
| discontinued = 1998
| discontinued = 1998
| interface    = [[Apple Desktop Bus]]
| interface    = [[Apple Desktop Bus]]
| compatible  = ADB-equipped Macintosh computers and the Apple IIGS
| compatible  = ADB-equipped Macintosh and Apple II computers
| predecessor  = [[Apple Desktop Bus Mouse]]
| predecessor  = [[Apple Desktop Bus Mouse]]
| model        = M2706
| resolution  = 200 pulses per inch
| power        = 10 mA maximum
| dimensions  = 106 × 62 × 33 mm
| weight      = 0.13 kg
| model        = M2706 (beige, black); M2707 (grey). Order no. M2706LL/A
}}
}}
<templatestyles src="Template:StyledTable/styles.css" />
<templatestyles src="Template:StyledTable/styles.css" />
The '''Apple Desktop Bus Mouse II''' (model M2706) replaced the [[Apple Desktop Bus Mouse]] as the standard Macintosh mouse. Deskthority dates it to '''1993–1998''' and gives the FCC ID as '''BCGM2706'''.<ref name="dt">"Apple Desktop Bus Mouse II", [https://deskthority.net/wiki/Apple_Desktop_Bus_Mouse_II Deskthority wiki]. Part number M2706; FCC ID BCGM2706; manufacture by '''Logitech''' and by '''Mitsumi'''; one button; ambidextrous; opto-mechanical sensor; ADB interface; introduced 1993, discontinued 1998; the design inspiration from the third-generation Microsoft mouse and the resulting "tear-drop" nickname; and the two documented internal variants — Logitech with a smaller printed label, a ''single'' screw underneath, serial numbers beginning 'L' (second letter 'C' for China), embossed text in the plastic and ''two'' separate circuit boards, one for the Omron microswitch and one for the sensors and electronics; and Mitsumi with a large printed label, ''two'' small screws underneath, serial numbers beginning 'M' (second letter 'I' for Ireland, 'B' for Malaysia) and a ''single'' circuit board. Also the black version sold for the Macintosh TV and the black Macintosh Performa 5420, with both grey and black labels observed, and the photographed observation that the Mitsumi mouse has a narrower gap between the button and the top shell. '''Community wiki, cited as a secondary source''', photograph-backed.</ref> It is a one-button, ambidextrous, opto-mechanical mouse — the same formula as its predecessor in a different shell.
The '''Apple Desktop Bus Mouse II''' (model M2706) replaced the [[Apple Desktop Bus Mouse]] as the standard Macintosh mouse. Deskthority dates it 1993-1998 and gives the FCC ID as BCGM2706.<ref name="dt">Deskthority wiki, [https://deskthority.net/wiki/Apple_Desktop_Bus_Mouse_II "Apple Desktop Bus Mouse II"]: part numbers M2706 (beige, black) and M2707 (grey), FCC IDs BCGM2706 and BCGM2707, made by Logitech and Mitsumi, one button, opto-mechanical, 1993-1998; Logitech and Mitsumi variants; black and grey versions; photographs. Community wiki, secondary source. Retrieved 2026-09-30.</ref> Its shape, rounder, with the ball forward of centre and a larger button across the front, was inspired by the third-generation Microsoft mouse and earned it the nickname "tear-drop mouse".<ref name="dt" />


The shape was '''inspired by the third-generation Microsoft mouse''': rounder, with the ball forward of centre and a larger button covering the front. It is universally nicknamed the '''"tear-drop mouse"'''.<ref name="dt" />
Apple describes it as a low-power mouse for any Macintosh or Apple II with ADB, with an enlarged button and the ball at the front for precise control, which can plug into an ADB port on the computer or be daisy-chained from another ADB device. Apple's specifications give mechanical tracking with optical shaft encoding at 200 pulses per inch (7.87 per mm), a maximum current of 10 mA, a size of 33 mm high, 62 mm wide and 106 mm deep, and a weight of 0.13 kg. The order number was M2706LL/A.<ref name="til">Apple Computer, Tech Info Library article 11227, "Apple Desktop Bus Mouse II: Description and Specifications", created 6 January 1993. Hosted in [[:File:Apple Tech Info Library ADB keyboard and mouse articles.pdf]], PDF pp. 16-17.</ref>


== Variants ==
== Variants ==
 
There are two makers, identifiable from the underside.<ref name="dt" />
'''There are two documented internal designs, not four''', and telling them apart takes only a look at the underside.


{| class="wikitable styled-table" style="width:95%;"
{| class="wikitable styled-table" style="width:95%;"
|+'''Identifying the manufacturer'''<ref name="dt" />
|+'''Identifying the maker'''<ref name="dt" />
! !! Logitech !! Mitsumi
! !! Logitech !! Mitsumi
|-
|-
| '''Label''' || Smaller printed label || Large printed label
| Label || smaller printed label; some revisions have embossed text in the plastic instead || large printed label
|-
|-
| '''Screws underneath''' || '''One''' || '''Two''' small screws
| Screws underneath || one || two small screws
|-
|-
| '''Serial number''' || Starts '''L'''; second letter indicates country — '''C''' = China || Starts '''M'''; second letter '''I''' = Ireland, '''B''' = Malaysia
| Serial number || starts L; second letter C = China || starts M; second letter I = Ireland, B = Malaysia
|-
|-
| '''Case''' || Embossed text in the plastic || —
| Boards inside || two: one for the Omron microswitch, one for the sensors and electronics || one
|-
|-
| '''Boards inside''' || '''Two''' — one for the Omron microswitch, one for the sensors and electronics || '''One''' single board
| Button || || narrower gap between button and top shell
|-
| '''External tell''' || Wider gap between button and top shell || '''Narrower gap''' between button and top shell
|}
|}


The board count is the practically important difference: a Logitech mouse has a separate switch board, so a failed microswitch can be dealt with without disturbing the optics, while on a Mitsumi mouse everything is on one board.<ref name="dt" />
A black version was sold for the [[Macintosh TV]] and the black Macintosh Performa 5420, which also had a black [[Apple Design Keyboard|AppleDesign Keyboard]]. A grey version, M2707, was made in 1993 as an accessory for the PowerBook 100 series.<ref name="dt" />
 
=== Black version ===
A black M2706 was sold for the '''[[Macintosh TV]]''' and the '''black Macintosh Performa 5420''', which also got a black [[Apple Design Keyboard|AppleDesign Keyboard]]. '''Both grey and black labels have been seen on black mice''', so the label colour is not a reliable authenticity check.<ref name="dt" />
 
'''No separate "M2707 PowerBook Gray" model is documented''' by any source consulted here, and none is claimed on this page.
 
== How It Tracks ==
 
The mechanism is Apple's standard opto-mechanical arrangement, described in full in ''Guide to the Macintosh Family Hardware'':<ref name="gmfh">''Guide to the Macintosh Family Hardware'', second edition, Apple Computer, Inc. / Addison-Wesley, 1990 — hosted on this wiki as [[:File:Apple Guide to the Macintosh Family Hardware 2nd Edition 1990.pdf]]. Chapter 8, "Apple Desktop Bus": Table 8-1 connector signal assignments (470 Ω pull-up, POWER.ON on pin 2); Table 8-2 transceiver electrical characteristics; Table 8-4 register 0 in the Apple Standard Mouse and its note on 100 ±10 / 200 ±10 counts per inch; Tables 8-7 and 8-8 registers 0 and 2 in the Apple Standard Keyboard; Tables 8-10 and 8-11 registers 0 and 2 in the Apple Extended Keyboard and the $0002 → $0003 Device Handler ID change for right-hand Option and Control; Table 8-13 command byte syntax; Table 8-14 the full ADB timing specification; Table 8-15 device register 3; Table 8-16 device addresses; Table 8-17 reserved Device Handler IDs; the 500 mA total bus limit, the 5 m / 100 pF-per-metre cable limits, the 11 ms idle polling interval and the warning against unplugging a device while the computer is running. Chapter 9, "Floppy Disk Interfaces": Table 9-1 drive capacities, file systems and encoding; the IWM and SWIM interface ICs; internal 20-pin and external DB-19 pinouts; drive current requirements; and the PWM motor-speed line used only by 400K single-sided drives.</ref> a rubber-coated steel ball turns two capstans, each driving a slotted '''interrupter wheel'''; two beams of infrared light shine through the slots onto two detectors offset just enough that the two square waves they produce are '''90° out of phase''' — the ''interrupt'' signal and the ''quadrature'' signal. Which leads tells the mouse which way the wheel is turning.
 
This is why '''a mouse with one dirty detector jitters and reverses rather than simply losing motion''': partial obstruction of one detector corrupts the phase relationship rather than reducing sensitivity.
 
A microprocessor in the mouse counts the edges and also acts as the mouse's ADB transceiver.<ref name="gmfh" />
 
== ADB Behaviour ==
 
Apple's published figures for the Apple Standard Mouse apply:<ref name="gmfh" />


* '''Default address $03''', the address Apple reserves for relative-position devices.
== How it tracks ==
* '''Register 0''' is a single 16-bit quantity: bit 15 button status (0 = down), bits 14–8 '''Y''' move counts, bit 7 '''not used, always 1''', bits 6–0 '''X''' move counts. Both move fields are '''7-bit two's complement''', so the range per report is '''−64 to +63'''.
Apple describes the mechanism of its ADB mouse: a rubber-coated steel ball turns two capstans, each connected to a slotted interrupter wheel, one for X and one for Y. Two beams of infrared light shine through the slots onto two light detectors, offset so that as the wheel turns they produce two square waves 90° out of phase, the interrupt and quadrature signals; which one leads gives the direction. A microprocessor in the mouse counts the pulses and also acts as the mouse's ADB transceiver.<ref name="g297">Apple Computer, ''Guide to the Macintosh Family Hardware'', 2nd edition (1990), chapter 8, "Apple Standard Mouse", pp. 297-299. Hosted as [[:File:Apple Guide to the Macintosh Family Hardware 2nd Edition 1990.pdf]].</ref>
* '''Resolution is 100 ±10 counts per inch at Device Handler ID $0001 and 200 ±10 at $0002'''; the mouse powers up and resets at $0001. A driver moves it to the higher mode by writing a new Handler ID to register 3.
* A device must answer a Talk command within '''260 µs'''. In the idle state the transceiver repeats the last Talk command '''every 11 ms'''.


The first byte carries '''Y''', not X. Bit 7 is fixed at 1 and is not a second button.
== ADB ==
 
Mice default to ADB address $03, the address for relative-position devices.<ref name="g318">''Guide to the Macintosh Family Hardware'', 2nd ed., Table 8-16, p. 318.</ref> Apple's register 0 format for its ADB mouse is bit 15 button status (0 = down), bits 14-8 Y move counts, bit 7 unused and always 1, and bits 6-0 X move counts, both counts in two's complement. With Device Handler ID $0001, which the mouse has at start-up and after reset, it counts 100 ± 10 per inch of travel; with $0002, 200 ± 10.<ref name="g297" /> A device must answer a Talk command within 260 µs.<ref name="g315">''Guide to the Macintosh Family Hardware'', 2nd ed., Table 8-14, p. 315.</ref> All ADB devices together may draw no more than 500 mA.<ref name="g292">''Guide to the Macintosh Family Hardware'', 2nd ed., p. 292.</ref>
'''Apple published no ball diameter, encoder slot count, sampling rate, maximum tracking speed or per-device current figure for this mouse''', and none are stated here. Figures such as "36-slot encoder wheels", "200 Hz mechanical sampling", "10 inches per second" and "50 mA typical, 100 mA maximum" could not be traced to any source and are not reproduced. What Apple does specify is a '''bus''' limit: all ADB devices combined must draw no more than '''500 mA'''.<ref name="gmfh" />


== Disassembly ==
== Disassembly ==
 
The Logitech mouse has one screw underneath and the Mitsumi mouse two.<ref name="dt" /> The serial number on the label identifies the maker, so keep the label intact.
Match the procedure to the variant:<ref name="dt" />
 
* '''Logitech (one screw).''' The single screw is under the label. Remove it, then release the internal clips.
* '''Mitsumi (two screws).''' Both small screws are under the label. Remove them and separate the halves.
 
In both cases the label has to be lifted or pierced. Lift it carefully from one edge with a plastic spudger if you want to keep it — the serial number on it is the only way to identify the manufacturer without opening the mouse again.


== Troubleshooting ==
== Troubleshooting ==
=== Erratic or jumpy cursor ===
A jumpy mouse is usually a dirty one.<ref name="til6491">Apple Computer, Tech Info Library article 6491, "How to Clean a Mouse: Instructions Are in the Manual" (reviewed 12 December 1990): a "jumpy" mouse is usually a sign of a dirty mouse; the cleaning procedure is in the computer's owner's guide. [http://absurdengineering.org/library/MASTER%20Tech%20Info%20Library/Peripherals/Mouse%20Devices/ Tech Info Library archive, Mouse Devices]. Retrieved 2026-09-30.</ref>
# Remove the ball and clean it.
# Clean the capstans and the interrupter wheels with a cotton swab and isopropyl alcohol, and blow dust out of the wheel slots.
# Clean the emitters and detectors on both axes.


=== Erratic or reversing cursor ===
If only one axis works, compare it with the working axis: the parts are the same on each.<ref name="g297" />
By far the most common fault, and almost always dirt on the interrupter wheels or the optical pairs rather than anything electrical.<ref name="gmfh" />
 
# Remove the ball and inspect the wheels for dust and lint.
# Clean the wheels with a cotton swab and 90%+ isopropyl alcohol; clear the slots with compressed air.
# '''Clean both the emitter and the detector on each axis.''' Cleaning only one is the classic half-fix and leaves the phase relationship corrupted.
# Check the capstans for a ring of compacted grime — that, not a worn ball, is what usually causes slipping.
# Do not flood the optical parts with anything that leaves a film.
 
=== Cursor moves on one axis only ===
One interrupter wheel, one emitter, or one detector. Swap your attention between the two axes and compare; the mechanism is identical on each, so a working axis is a reference.


=== Button faults ===
=== Button stays down or clicks do not register ===
The button acts on an Omron microswitch.<ref name="dt" /> Measure across the switch terminals: effectively zero when pressed, open when released. Check for mechanical obstruction in the button lever before condemning the switch.
Apple's procedure for a mouse that seems to stick down: restart; restart with extensions off; shut down, disconnect all ADB cables and devices for at least 10 seconds and reconnect; zap the PRAM; then replace the ADB cables and devices.<ref name="til18560">Apple Computer, Tech Info Library article 18560, "ADB Mouse: Sticking In The Down Position (9/95)". Hosted in [[:File:Apple Tech Info Library ADB keyboard and mouse articles.pdf]], PDF pp. 18-19.</ref> If the fault is in the mouse, the button works an Omron microswitch; on the Logitech mouse the switch has its own board.<ref name="dt" /> Check the switch for continuity when pressed and open when released, and check the button lever for obstruction, before replacing it.
 
On a '''Logitech''' mouse the switch is on its own board, which makes replacement considerably less risky.<ref name="dt" /> Omron D2F-series switches are the usual modern substitute. '''Apple and Omron published no rated operating life for the original''', and the "1 million clicks" figure that circulates is not reproduced here.


=== No response at all ===
=== No response at all ===
# Measure '''+5 V at pin 3 against pin 4''' of the ADB connector.
# Measure +5 V between pin 3 and pin 4 of the ADB connector. Pin 1 (data) should idle high, pulled up through 470 Ω on the computer's logic board.<ref name="g288">''Guide to the Macintosh Family Hardware'', 2nd ed., Table 8-1, p. 288.</ref>
# '''Pin 1 should idle high''', held up by the '''470 Ω''' pull-up on the computer's logic board.<ref name="gmfh" /> A pin 1 at 0 V with nothing plugged in is a fault on the computer. A bus held low for more than 3 ms is a permanent Global Reset and nothing will enumerate.
# A bus held low for 3 ms or more is a Global Reset to every device.<ref name="g315" />
# Check continuity of all four conductors end to end, flexing the cable at the strain relief — the most common failure point.
# Check the cable for continuity on all four conductors while flexing it at the strain relief.
# With a scope: look for the '''800 µs Attention''' pulse followed by the '''65 µs Sync''' high, and for the mouse answering within '''260 µs''' of a Talk command.<ref name="gmfh" />


=== Hot-plugging ===
=== Hot-plugging ===
Apple's warning is explicit: '''do not unplug and reattach an ADB device while the computer is running.''' The device reverts to its default address while the computer carries on trying to reach it at the address assigned at startup, so it simply stops working until the machine restarts.<ref name="gmfh" /> On many machines the ADB +5 V feed is also fused on the logic board and hot-plugging can open it; the rating varies by model, so check that machine's service documentation rather than assuming.
Do not unplug and reconnect an ADB device while the computer is running. The device reverts to its default address while the computer keeps trying to reach it at the address assigned at startup.<ref name="g287">''Guide to the Macintosh Family Hardware'', 2nd ed., p. 287.</ref> Apple repeats the warning in its troubleshooting articles.<ref name="til18560" />


=== Preventive maintenance ===
== Modern use ==
Clean the ball and the capstans when tracking starts to feel notchy. '''That is the only routine maintenance this mouse needs.''' Scheduled monthly, quarterly and annual strip-downs are not a manufacturer recommendation and serve mainly to wear out the case clips.
An ADB-to-USB converter keeps the mouse original; see [[Apple Desktop Bus]] for the protocol.


== Modern Use ==
== See also ==
 
ADB-to-USB conversion keeps the mouse original. Replacement logic boards that fit the original shell and present as an ADB mouse while using a modern optical sensor have been produced by people in the retrocomputing community; these are small-batch projects that come and go, so no particular one is endorsed here. Check current sources before buying, and check that whatever you find implements the timing in [[Apple Desktop Bus]] rather than approximating it.
 
== Collector Notes ==
 
* '''Manufacturer''' is read from the first letter of the serial number: L = Logitech, M = Mitsumi.<ref name="dt" />
* '''Country''' is the second letter: C = China, I = Ireland, B = Malaysia.<ref name="dt" />
* '''Label colour does not authenticate a black mouse''' — both grey and black labels occur.<ref name="dt" />
* Case yellowing is normal for ABS of this era; see [[Retrobrite]] before attempting anything.
 
'''No production figures were ever published''' for the M2706, and the "over 6 million units, 95% platinum, under 2% black" split that circulates could not be traced to any source. It is not repeated here.
 
== See Also ==
* [[Apple Desktop Bus]]
* [[Apple Desktop Bus]]
* [[Apple Desktop Bus Mouse]]
* [[Apple Desktop Bus Mouse]]
* [[Apple Design Keyboard]]
* [[Apple Design Keyboard]]
* [[Retrobrite]]


== References ==
== References ==
<references />
<references />


Latest revision as of 13:29, 30 September 2026

Apple Desktop Bus Mouse II
Apple Desktop Bus Mouse II (M2706)
Manufacturer Apple Computer, Inc. (made by Logitech and Mitsumi)
Type Pointing device
Release date 1993
Discontinued 1998
Interface Apple Desktop Bus
Compatible ADB-equipped Macintosh and Apple II computers
Dimensions 106 × 62 × 33 mm
Weight 0.13 kg
Predecessor Apple Desktop Bus Mouse
Model M2706 (beige, black); M2707 (grey). Order no. M2706LL/A
Power 10 mA maximum
Resolution 200 pulses per inch

The Apple Desktop Bus Mouse II (model M2706) replaced the Apple Desktop Bus Mouse as the standard Macintosh mouse. Deskthority dates it 1993-1998 and gives the FCC ID as BCGM2706.[1] Its shape, rounder, with the ball forward of centre and a larger button across the front, was inspired by the third-generation Microsoft mouse and earned it the nickname "tear-drop mouse".[1]

Apple describes it as a low-power mouse for any Macintosh or Apple II with ADB, with an enlarged button and the ball at the front for precise control, which can plug into an ADB port on the computer or be daisy-chained from another ADB device. Apple's specifications give mechanical tracking with optical shaft encoding at 200 pulses per inch (7.87 per mm), a maximum current of 10 mA, a size of 33 mm high, 62 mm wide and 106 mm deep, and a weight of 0.13 kg. The order number was M2706LL/A.[2]

Variants

[edit | edit source]

There are two makers, identifiable from the underside.[1]

Identifying the maker[1]
Logitech Mitsumi
Label smaller printed label; some revisions have embossed text in the plastic instead large printed label
Screws underneath one two small screws
Serial number starts L; second letter C = China starts M; second letter I = Ireland, B = Malaysia
Boards inside two: one for the Omron microswitch, one for the sensors and electronics one
Button narrower gap between button and top shell

A black version was sold for the Macintosh TV and the black Macintosh Performa 5420, which also had a black AppleDesign Keyboard. A grey version, M2707, was made in 1993 as an accessory for the PowerBook 100 series.[1]

How it tracks

[edit | edit source]

Apple describes the mechanism of its ADB mouse: a rubber-coated steel ball turns two capstans, each connected to a slotted interrupter wheel, one for X and one for Y. Two beams of infrared light shine through the slots onto two light detectors, offset so that as the wheel turns they produce two square waves 90° out of phase, the interrupt and quadrature signals; which one leads gives the direction. A microprocessor in the mouse counts the pulses and also acts as the mouse's ADB transceiver.[3]

ADB

[edit | edit source]

Mice default to ADB address $03, the address for relative-position devices.[4] Apple's register 0 format for its ADB mouse is bit 15 button status (0 = down), bits 14-8 Y move counts, bit 7 unused and always 1, and bits 6-0 X move counts, both counts in two's complement. With Device Handler ID $0001, which the mouse has at start-up and after reset, it counts 100 ± 10 per inch of travel; with $0002, 200 ± 10.[3] A device must answer a Talk command within 260 µs.[5] All ADB devices together may draw no more than 500 mA.[6]

Disassembly

[edit | edit source]

The Logitech mouse has one screw underneath and the Mitsumi mouse two.[1] The serial number on the label identifies the maker, so keep the label intact.

Troubleshooting

[edit | edit source]

Erratic or jumpy cursor

[edit | edit source]

A jumpy mouse is usually a dirty one.[7]

  1. Remove the ball and clean it.
  2. Clean the capstans and the interrupter wheels with a cotton swab and isopropyl alcohol, and blow dust out of the wheel slots.
  3. Clean the emitters and detectors on both axes.

If only one axis works, compare it with the working axis: the parts are the same on each.[3]

Button stays down or clicks do not register

[edit | edit source]

Apple's procedure for a mouse that seems to stick down: restart; restart with extensions off; shut down, disconnect all ADB cables and devices for at least 10 seconds and reconnect; zap the PRAM; then replace the ADB cables and devices.[8] If the fault is in the mouse, the button works an Omron microswitch; on the Logitech mouse the switch has its own board.[1] Check the switch for continuity when pressed and open when released, and check the button lever for obstruction, before replacing it.

No response at all

[edit | edit source]
  1. Measure +5 V between pin 3 and pin 4 of the ADB connector. Pin 1 (data) should idle high, pulled up through 470 Ω on the computer's logic board.[9]
  2. A bus held low for 3 ms or more is a Global Reset to every device.[5]
  3. Check the cable for continuity on all four conductors while flexing it at the strain relief.

Hot-plugging

[edit | edit source]

Do not unplug and reconnect an ADB device while the computer is running. The device reverts to its default address while the computer keeps trying to reach it at the address assigned at startup.[10] Apple repeats the warning in its troubleshooting articles.[8]

Modern use

[edit | edit source]

An ADB-to-USB converter keeps the mouse original; see Apple Desktop Bus for the protocol.

See also

[edit | edit source]

References

[edit | edit source]
  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Deskthority wiki, "Apple Desktop Bus Mouse II": part numbers M2706 (beige, black) and M2707 (grey), FCC IDs BCGM2706 and BCGM2707, made by Logitech and Mitsumi, one button, opto-mechanical, 1993-1998; Logitech and Mitsumi variants; black and grey versions; photographs. Community wiki, secondary source. Retrieved 2026-09-30.
  2. ↑ Apple Computer, Tech Info Library article 11227, "Apple Desktop Bus Mouse II: Description and Specifications", created 6 January 1993. Hosted in File:Apple Tech Info Library ADB keyboard and mouse articles.pdf, PDF pp. 16-17.
  3. ↑ 3.0 3.1 3.2 Apple Computer, Guide to the Macintosh Family Hardware, 2nd edition (1990), chapter 8, "Apple Standard Mouse", pp. 297-299. Hosted as File:Apple Guide to the Macintosh Family Hardware 2nd Edition 1990.pdf.
  4. ↑ Guide to the Macintosh Family Hardware, 2nd ed., Table 8-16, p. 318.
  5. ↑ 5.0 5.1 Guide to the Macintosh Family Hardware, 2nd ed., Table 8-14, p. 315.
  6. ↑ Guide to the Macintosh Family Hardware, 2nd ed., p. 292.
  7. ↑ Apple Computer, Tech Info Library article 6491, "How to Clean a Mouse: Instructions Are in the Manual" (reviewed 12 December 1990): a "jumpy" mouse is usually a sign of a dirty mouse; the cleaning procedure is in the computer's owner's guide. Tech Info Library archive, Mouse Devices. Retrieved 2026-09-30.
  8. ↑ 8.0 8.1 Apple Computer, Tech Info Library article 18560, "ADB Mouse: Sticking In The Down Position (9/95)". Hosted in File:Apple Tech Info Library ADB keyboard and mouse articles.pdf, PDF pp. 18-19.
  9. ↑ Guide to the Macintosh Family Hardware, 2nd ed., Table 8-1, p. 288.
  10. ↑ Guide to the Macintosh Family Hardware, 2nd ed., p. 287.


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