Mini 8-Pin Serial Interface - Primera Pictura 310s User Manual

C. Mini 8-Pin
Serial Interface
The mini 8-pin serial interface connector is the
standard interface used by Macintosh. Due to the
Color Sign PrinterÕs high-speed rate of data
transmission, its serial interface port communicates
only with Macintosh GeoPorts. If your Macintosh
does not have a Geo-compatible serial port, you
will not be able to use the Color Sign PrinterÕs
serial port. The Color Sign PrinterÕs serial port
mates with a standard computer to printer serial
cable. Always use a high-quality serial cable which
is less than 6 feet in length.
Pin assignments are as follows:
Pin Signal
Number Name
1 HSKo
2 HSKi
3 TxD-
4 GND
5 RxD-
6 TxD+
7 GPi
8 RxD+
TABLE A-2: Serial Interface Pin Assignments
8 7 6
4
5 3
2 1
Signal
Description
External Clock Output
± 2V < Vout < ± 3.6V;
Rout < 450Ω
Not Connected
Not Connected
Signal ground.
Connected to logic and
chassis ground.
Receive data (inverted);
Vih = 0.2V; Vil = -0.2V;
Rin > 12KΩ
Not Connected
Not Connected
Receive data. Received
uninverted at SCC's RxD.
Vih = 0.2V; Vil = -0.2V;
Rin > 12KΩ
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