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Chapter 15 Bi-Tronics Parallel Interface
Note The length of the data cable from the host computer to the pr inter should
not exceed 10 meters (32 feet).
Table 19. Bi-Tronics Signals
Pin Source of Data Type of Mode
Compatible Nibble Byte
1 Host nStrobe HostClk Host/Clk
2 Host/Printer D ata 1 (LSB)
3 Host/Printer Data 2
4 Host/Printer Data 3
5 Host/Printer Data 4
6 Host/Printer Data 5
7 Host/Printer Data 6
8 Host/Printer Data 7
9 Host/Printer D ata 8 (MSB)
10 Printer nAck PtrClk PtrClk
11 Printer Busy PtrBusy PtrBusy
12 Printer PError AckDataReq A ckDataReq
13 Printer Select Xflag Xflag
14 Host n AutoFd Host Busy HostAck
15 Not Defined
16 Logic Grid
17 Chassis Grid
18 Printer Peripheral Logic High
19 Signal Ground (nStrobe)
20 Signal Ground (Data 1)
21 Signal Ground (Data 2)
22 Signal Ground (Data 3)
23 Signal Ground (Data 4)