page_title: IEEE 1284
section_title: IEEE 1284 connectors and cables
hierarchical_section_title: IEEE 1284 / IEEE 1284 connectors and cables
caption_attribution_description: English: Mini-Centronics 36 pin male connector (top) with Micro ribbon 36 pin male Centronics connector (bottom)
context_page_description: IEEE 1284 is a standard that defines bi-directional parallel communications between computers and other devices. It was originally developed in the 1970s by Centronics, and was widely known as the Centronics port, both before and after its IEEE standardization.
context_section_description: An IEEE-compliant cable must meet several standards of wiring and quality.  Three types of connectors are defined:
  Type A: DB-25 25 pin, for the host connection.
  Type B: Centronics (officially called "Micro Ribbon") 36-pin, for the printer or device connection.
  Type C: Mini-Centronics (MDR36) 36-pin, a smaller alternative for the device connection that has not proven popular.
  There are two kinds of IEEE 1284 cables:
  IEEE 1284-I: uses IEEE 1284-A and IEEE 1284-B connectors.
  IEEE 1284-II: uses IEEE 1284-C connectors.
  In IEEE 1284 Daisy Chain Specification, up to eight devices can be connected to a single parallel port.
  All modes use TTL voltage logic levels, which limits the possible cable length to a few meters unless expensive special cables are used.
  For detailed specifications, including pinouts, refer to the links below.
caption: Mini-Centronics 36-pin male connector (top) with Micro ribbon 36-pin male Centronics connector (bottom)
exif: {"Image Make": "Apple", "Image Model": "iPhone 5s", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "8.4.1", "Image DateTime": "2015:09:04 10:02:37", "Image ExifOffset": "180", "GPS GPSLatitudeRef": "N", "GPS GPSLatitude": "[44, 58, 589/20]", "GPS GPSLongitudeRef": "W", "GPS GPSLongitude": "[93, 16, 1701/100]", "GPS GPSAltitudeRef": "0", "GPS GPSAltitude": "262", "GPS GPSTimeStamp": "[15, 2, 28]", "GPS GPSSpeedRef": "K", "GPS GPSSpeed": "0", "GPS GPSImgDirectionRef": "T", "GPS GPSImgDirection": "20094/245", "GPS GPSDestBearingRef": "T", "GPS GPSDestBearing": "48211/184", "GPS GPSDate": "2015:09:04", "Image GPSInfo": "1562", "EXIF ExposureTime": "1/316", "EXIF FNumber": "11/5", "EXIF ExposureProgram": "Program Normal", "EXIF ISOSpeedRatings": "32", "EXIF ExifVersion": "0221", "EXIF DateTimeOriginal": "2015:09:04 10:02:37", "EXIF DateTimeDigitized": "2015:09:04 10:02:37", "EXIF ComponentsConfiguration": "YCbCr", "EXIF ShutterSpeedValue": "8501/1024", "EXIF ApertureValue": "7892/3469", "EXIF BrightnessValue": "3011/406", "EXIF ExposureBiasValue": "0", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash fired, compulsory flash mode", "EXIF FocalLength": "83/20", "EXIF SubjectArea": "[1631, 1223, 1795, 1077]", "EXIF SubSecTimeOriginal": "072", "EXIF SubSecTimeDigitized": "072", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB", "EXIF ExifImageWidth": "2037", "EXIF ExifImageLength": "1131", "EXIF SensingMethod": "One-chip color area", "EXIF SceneType": "Directly Photographed", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF FocalLengthIn35mmFilm": "29", "EXIF SceneCaptureType": "Standard", "EXIF LensSpecification": "[83/20, 83/20, 11/5, 11/5]", "EXIF LensMake": "Apple", "EXIF LensModel": "iPhone 5s back camera 4.15mm f/2.2"}