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PK-88 OPERATING MANUAL
2.11.4 Tandy Color Computer
The CoCo series (except for the Micro Color Computer) uses a 4-pin DIN
connector for its serial interface. Wire a cable as shown below.
Coco
2.11.5 Tandy Model 100/102, Kyocera KC-85 and NEC 8201
The Model 100/102, Kyocera KC-85 and NEC 8201 have built-in RS-232C serial
ports compatible with the PK-88. You will need a standard male-to-male RS-232C
extension cable to connect the computer and the PK-88.
2.11.6 Other Computers with 25-Pin RS-232-C Ports
If your computer has an RS-232C port, consult your manual to see which pins
are used for Send data, Receive data and signal common. Read the instructions
for connecting a modem and connect the PK-88 the same way.
The PK-88 is configured as Data Communications Equipment (DCE), the technical
term for an RS-232C modem. Most computers and terminals are configured as Data
Terminal Equipment (DTE).
•
If your computer is configured as DTE:
Wire pin 2 of the PK-88 connector to pin 2 of the computer's RS-232C
port, pin 3 to pin 3 and pin 7 to pin 7. Use a standard 3-wire
male-to-female or male-to-male RS-232C extension cable.
•
If your computer is configured as DCE:
Wire pin 2 of the PK-88 to pin 3 of the computer connector. Wire pin 2 of
the computer connector to pin 3 of the PK-88. Wire pin 7 to pin 7.
Some computers require pin 5 of to be connected to an appropriate signal.
Others may require connections for pin 8 and pin 20. You can use the
computer's output signals on pins 4 and 6 as indicated below:
4 .....................2
2 .....................3
3 .....................7
PK-88
2 ......................... 2
3 ......................... 3
7 ......................... 7
2-19
PK-88 (DB25P)
COMPUTER
:....... 4
:....... 5
:....... 6
:....... 8
:....... 20
INSTALLATION
PK88-37
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