13 
PARALLEL DATA INTERFACE
• | Connector | JD36SL or equivalent (36 pin) |
• | Input level | TTL |
•Parallel input connector port
Signal allocation (Signal : Compatible)
PARALLEL TERMINAL SIGNAL
Pin number
181
3619
Pin No. Return | Signal | From/To | ||
| pin No. |
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1 | 19 |
| PC/DP | |
STROBE |
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Function
Strobe pulse for data reading. Incoming pulse width shoud be 0.5∝ s minimum. At regular conditions, “High” data will be read after becoming “Low”.
2 | 20 | DATA1(LSB) | PC/DP | High: data 1 | |||||||
3 | 21 |
| DATA2 | PC/DP | Low: data 0 | ||||||
4 | 22 |
| DATA3 | PC/DP |
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5 | 23 |
| DATA4 | PC/DP | Information will be expressed for parallel data of every signal | ||||||
6 | 24 |
| DATA5 | PC/DP | from bit No.1 to No.8. | ||||||
7 | 25 |
| DATA6 | PC/DP |
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8 | 26 |
| DATA7 | PC/DP |
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9 | 27 | DATA8(MSB) | PC/DP |
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10 | 28 |
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| PC/DP | The signal is yielded after data input has ended by a data | ||
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| ACK |
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| (ACKNOWLEDGE) |
| reception acknowledgement pulse. | |||||||
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11 | 29 |
| BUSY | PC/DP | High: DP data is not accepted. | ||||||
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| Low: DP data is accepted. |
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| The signal becomes “High” in the following cases: |
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| • During data entry |
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12 |
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| P•E | PC/DP | High: No paper | |||||
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| (PAPAER END) |
| Low: Paper available | |||||||
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13 |
| SELECT | PC/DP | High | |||||||
14 |
| AutoFd | PC/DP | High | |||||||
16•17 |
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| GND | PC/DP | Earth | ||||||
18 |
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| High | PC/DP | PeripheralLogicHigh | ||||||
19 - 30 |
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| GND |
| Earth | ||||||
31 | 16 |
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| PC/DP | Clears sending data to this unit. (Low) Incoming pulse width | ||
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| INIT | |||||||||
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| should be 100∝ s minimum. |
32 |
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| PC/DP | Low: Abnormal condition occurs in DP. (e.g. error) | ||||
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| Fault | |||||||||
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15• |
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| NC |
| Unused | |||||
33 - 35 |
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36 |
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| PC/DP | Low | |||||||
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| SelectIn |
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DP : Digital printer
PC : Personal computer
20
