| Line Sync between host and interface. |
Switches: | 8 SIP piano switches for device address, |
| emulation mode, buffer print, print quality, |
| and interface enable |
| Push Button for TEST/YES |
| Push Button for CANCEL/NO |
Selection Jumpers: | 3 hardware configuration shorting jumpers |
Both | |
| using provided |
Power Requirements: | All power supplied by the printer |
Processor: | Z80A CMOS |
Memory: | 8 Kbytes of static memory |
PARALLEL INTERFACE SPECIFICATIONS
Signal | Return | Signal | Parallel | Direction | Description |
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| Cable |
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1 | 19 | STROBE | 1 | IN | Strobe pulse to read |
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| data in. Pulse width |
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| must be more than |
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| .5 sec. at the inter- |
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| face. |
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2 | 20 | DATA1 | 2 | IN | These signals repre- |
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3 | 21 | DATA2 | 3 | IN | sent information in |
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4 | 22 | DATA3 | 4 | IN | bits 1 to 8 of parallel |
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5 | 23 | DATA4 | 5 | IN | data respectively. |
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6 | 24 | DATA5 | 6 | IN | Each signal is HIGH |
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7 | 25 | DATA6 | 7 | IN | when data is logical |
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8 | 26 | DATA7 | 8 | IN | 1 and LOW when it |
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9 | 27 | DATA6 | 9 | IN | is logical 0. |
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26