IBM 6400 Setup Manual page 220

Chapter 5
IEEE 1284 Parallel Interface
Pin Source of Data
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
NOTE: The length of the data cable from the host computer to the printer
220
Table 9. 1284 Signals (continued)
Compatible
Host nAutoFd
Not Defined
Logic Grid
Chassis Grid
Printer
Signal Ground (PError, Select, nAck)
Signal Ground (nAutoFd, nSelectIn, nInit)
Host nInit
Printer NFault
Not Defined
Not Defined
Not Defined
Host nSelectIn
should not exceed 32 feet (10 meters).
Type of Mode
Nibble
Host Busy
Peripheral Logic High
Signal Ground (nStrobe)
Signal Ground (Data 1)
Signal Ground (Data 2)
Signal Ground (Data 3)
Signal Ground (Data 4)
Signal Ground (Data 5)
Signal Ground (Data 6)
Signal Ground (Data 7)
Signal Ground (Data 8)
Signal Ground (Busy, nFault)
nDataAvail aDataAvail
1284 Active 1284 Active
Byte
HostAck