Specifications

Centronics Printer Interface
OPTIONAL PRINTER CABLE PINOUT
Table 9-5 below defines the pinout for the ZT 90039 printer port
cable, including the frontplane connector J6 pin definitions and the
corresponding pin on the ZT 90039 25-pin D-type connector, which is
identical to the IBM 25-pin D-type connector pinout.
Note: An alternative cable, the ZT 90074, should be used if the
shared signals are needed by the printer. The pinout is identical except
all signals are connected.
Table 9-5
ZT 90039 Cable Pinout.
Signal Name Mnemonic Connector J6 25-Pin Connector
Pin # Pin #
Strobe STB* 1 1
Autofeed AFD* 2 14(B)
Parallel Data 0 PD0 3 2
Error ERROR* 4 15(B)
Parallel Data 1 PD1 5 3
Initialize INIT* 6 16(B)
Parallel Data 2 PD2 7 4
Select In SLIN* 8 17(B)
Parallel Data 3 PD3 9 5
Printer OE LPTOE* 10 18(A)
Parallel Data 4 PD4 11 6
Ground GND 12 19(A)
Parallel Data 5 PD5 13 7
Ground GND 14 20 - 25(A)
Parallel Data 6 PD6 15 8
Busy BUSY 16 11
Parallel Data 7 PD7 17 9
Paper Empty PE 18 12
Acknowledge ACK* 19 10
Prtr Selected SLCT 20 13
Notes:
(A) The ZT 90039 cable ties together pins 18-25 of the 25-pin D-type connector, which is
common with ground on the ZT 8809A.
(B) Pins 14-17 of the 25-pin D connector are open to make these signals available for
ZT 8809A uses. The wires leading to those pins are insulated and remain within the D
connector backshell.
9-14