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