PowerBook ExpressModem DAA pinout

[Aektann]

Hi all,
I’m looking for pinout of PowerBook 100 series ExpressModem DAA port. Are they all same or have some changes between models? I’m especially interested in finding a possible pinout difference between Apple ExpressModem and Int’l XP 2400 modem used in Macintosh Portable.

 

[Nixontheknight]

I do have a modem that was inside a powerbook 180 I can mail to you if it helps you figure out the pinout

 

[Aektann]

I do have a modem that was inside a powerbook 180 I can mail to you if it helps you figure out the pinout

Hi, thank you. I have the same modem and DAA in my PowerBook 180c, may look at this dongle on my own. Trying to figure out the pinout for the modem in my Portable, actually. Both ports look the same but it does not guarantee that they're compatible with each other.

 

[bdurbrow]

Have a look at the Developer Notes for these models.

http://www.bitsavers.org/pdf/apple/mac/powerbook/100/Powerbook_100_Developers_Note_1991.pdf

http://mirror.informatimago.com/next/developer.apple.com/documentation/Hardware/Developer_Notes/Macintosh_CPUs-68K_Portable/PowerBook_160_180.pdf