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Apple 300/1200 Modem

9 PIN D-SUB CONNECTOR

Pin Name Description
1 Not connected
2 DSR Data Set Ready
3 GND Ground
4 Not connected
5 RxD Receive Data
6 DTR Data Terminal Ready
7 DCD Output from modem
8 GND Ground
9 TxD Transmit Data
 
Apple Duo Dock Modem Adapter Card

10 PIN UNKNOWN CONNECTOR

Pin Name Description
1 LINhttp://www.bdn.odessa.ua/HWB/td> Line/talk receive
2 DAA GND Modem DAA ground
3 DAA GND Modem DAA ground
4 DAA GND Modem DAA ground
5 /RA DVR Modem relay A driver
6 DAA ID IN ID input
7 /RING3 DET Ring detect signal
8 /RBDVR Modem relay B driver
9 DAA CNTL Modem DAA control
10 +5 V MODEM +5 V power

When the PowerBook Duo computer is housed in the Duo Dock, you cannot access the integral modem via the RJ-11 connector on the PowerBook Duo"s rear panel. A modem adapter card provides the connection. It plugs into the side of the Duo Dock"s main logic board, using a 10-pin header connector. The card supplies the RJ-11 hook up, which is accessed on the rear panel of the Duo Dock. The adapter card interfaces with the modem card in the PowerBook Duo computer via its 10-pin connector, printed circuit traces, and the 152-pin expansion connector.

 
Macintosh Modem (With DTR)

This cable should be used for DTE to DCE (for instance computer to modem) connections with DTR.

8 PIN MINI-DIN MALE (at the Computer)
25 PIN D-SUB MALE (to the Modem).

8 PIN MINI-DIN MALE to the Computer.
25 PIN D-SUB MALE to the Modem

Mac Dir Modem
HSKo 1 --> 4+20 RTS+DTR
HSKi 2 <-- 5 CTS
TxD- 3 --> 2 TxD
RxD- 5 <-- 3 RxD
GND+RxD+ 4+8 - 7 GND
GPi 7 <-- 8 DCD
 
Macintosh Modem (Without DTR)

This cable should be used for DTE to DCE (for instance computer to modem) connections without DTR.

8 PIN MINI-DIN MALE (at the Computer)
25 PIN D-SUB MALE (to the Modem).

8 PIN MINI-DIN MALE to the Computer.
25 PIN D-SUB MALE to the Modem

Mac Dir Modem
HSKo 1 --> 4 RTS
HSKi 2 <-- 5 CTS
TxD- 3 --> 2 TxD
RxD- 5 <-- 3 RxD
GND+RxD+ 4+8 - 7 GND
      6+20 DSR+DTR
 
Modem (25-25)

This cable should be used for DTE to DCE (for instance computer to modem) connections with hardware handshaking.

25 PIN D-SUB FEMALE (To Computer).
25 PIN D-SUB MALE (To Modem).

25 PIN D-SUB FEMALE to the Computer
25 PIN D-SUB MALE to the Modem

  Female Male Dir
Shield Ground 1 1 ---
Transmit Data 2 2 -->
Receive Data 3 3 <--
Request to Send 4 4 -->
Clear to Send 5 5 <--
Data Set Ready 6 6 <--
System Ground 7 7 ---
Carrier Detect 8 8 <--
Data Terminal Ready 20 20 -->
Ring Indicator 22 22 <--
 
Modem (9-15)

This cable should be used to connect an internal 14.4kbps Speedster modem to a computer.

9 PIN D-SUB FEMALE (To Computer).
UNKNOWN CONNECTOR (at the modem)

9 PIN D-SUB FEMALE to the Computer
15 PIN FEMALE ??? to the modem.

  9 pin 15 pin Dir
Carrier Detect 1 11 <--
Receive Data 2 13 <--
Transmit Data 3 12 -->
Data Terminal Ready 4 10 -->
System Ground 5 1+8+15 ---
Data Set Ready 6 3 <--
Request to Send 7 4 -->
Clear to Send 8 5 <--
Ring Indicator 9 6 <--
 
Modem (9-25)

This cable should be used for DTE to DCE (for instance computer to modem) connections with hardware handshaking.

9 PIN D-SUB FEMALE (To Computer).
25 PIN D-SUB MALE (To Modem).

9 PIN D-SUB FEMALE to the Computer
25 PIN D-SUB MALE to the Modem

  Female Male Dir
Shield   1 ---
Transmit Data 3 2 -->
Receive Data 2 3 <--
Request to Send 7 4 -->
Clear to Send 8 5 <--
Data Set Ready 6 6 <--
System Ground 5 7 ---
Carrier Detect 1 8 <--
Data Terminal Ready 4 20 -->
Ring Indicator 9 22 <--
 
Two-Wire Modem (25-25)

This cable should be used for DTE to DCE (for instance computer to modem) connections without hardware handshaking.

25 PIN D-SUB FEMALE (To Computer).
25 PIN D-SUB MALE (To Modem).

25 PIN D-SUB FEMALE to the Computer
25 PIN D-SUB MALE to the Modem

Female Male Dir
Shield Ground 1 1
Transmit Data 2 2 -->
Receive Data 3 3 <--
System Ground 7 7
Jumper these:
Request to Send 4 -->
Clear to Send 5 <--
Data Set Ready 6 <--
Carrier Detect 8 <--
Data Terminal Ready 20 -->
Request to Send 4 -->
Clear to Send 5 <--
Data Set Ready 6 <--
Carrier Detect 8 <--
Data Terminal Ready 20 -->
 
Two-Wire Modem (9-25)

This cable should be used for DTE to DCE (for instance computer to modem) connections without hardware handshaking.

9 PIN D-SUB FEMALE (To Computer).
25 PIN D-SUB MALE (To Modem).

9 PIN D-SUB FEMALE to the Computer
25 PIN D-SUB MALE to the Modem

Female Male Dir
Shield Ground 1
Transmit Data 3 2 -->
Receive Data 2 3 <--
System Ground 5 7
Jumper these:
Request to Send 7 -->
Clear to Send 8 <--
Data Set Ready 6 <--
Carrier Detect 1 <--
Data Terminal Ready 4 -->
Request to Send 4 -->
Clear to Send 5 <--
Data Set Ready 6 <--
Carrier Detect 8 <--
Data Terminal Ready 20 -->
 
 
 
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