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AppendixC Macintosh INTERFACE (OKIPAGE 4m)
1) Connector
• Printer side : 8-pin mini DIN receptacle
Type TCS7187-01-201 (made by HOSHIDEN) or equivalent
• Cable side : 8-pin mini DIN plug
Type TCP7180-01-110 (made by HOSHIDEN) or equivalent
2) Cable
Apple system peripheral-8 cable
(M0197 LL / B : made by Apple)
3) Interface signal
Pin No.
1
2
3
4
5
6
7
8
Signal Name
XCLOCK
–
Transmit data minus
Signal ground
Receive data minus
Transmit data plus
–
Receive data plus
Abbreviation
XCLK
–
TxD-
SG
RxD-
TxD+
RxD+
Signal Direction
← PR
← PR
→ PR
← PR
→ PR
Description
Transfer clk
Transmit data minus polarity
Signal ground
Receive data minus polarity
Transmit data plus polarity
(Not used)
Receive data plus polarity
4) Timing chart and level
XCLK
TXD+
TXD-
RXD+
RXD-
about 1.2 µS
5v
-5v
5v
0v
5v
0v
5v
0v
5v
0v