 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
HBCS-7150 Datasheet(PDF) 2 Page - Agilent(Hewlett-Packard) |
|
||||||||||||||||||||||||||||||
HBCS-7150 Datasheet(HTML) 2 Page - Agilent(Hewlett-Packard) |
|
|
2 / 6 page  4-76 keyboard data entry. Bar code scanning is faster and more accurate than key entry and provides far greater throughput. In addition, bar code scanning typically has a higher first read rate and greater data accuracy than optical character recogni- tion. When compared to magnetic stripe encoding, bar code offers significant advantages in flexibil- ity of media, symbol placement and immunity to electromagnetic fields. Hewlett-Packard’s Industrial Digital Slot Reader is designed for applications where high first read rate and durability are important factors. The epoxy coated metal case with its tamper proof mounting system, makes these slot readers ideal choices for security access control, time and attendance recording and other bar coded badge and card reading applications. Electrical Operation The HBCS-71XX family of digital slot readers consists of a pre- cision optical system, an analog amplifier, a digitizing circuit, and an output transistor. These elements provide a TTL compat- ible output from a single 4.5 V to 5.5 V DC power supply. The open collector transistor requires a pull-up resistor for proper operation. A non-reflecting black bar results in a logic high (1) level output, while a reflecting white space will cause a logic low (0) level output. After power up, the slot reader will be fully operational after approximately 6 seconds. During operation, the slot reader will assume a logic low state after a short period (typically 1 second) if no bar code is scanned. This feature allows multiple scanners (slot readers and wands) to be connected together with a simple OR gate. The slot reader connector pro- vides a shield which is connected to signal ground. The shield is connected either to the metal housing of the 5 pin DIN connector, or to pin 8 of the 9 pin D-sub connector. A good connection to earth ground is recommended. The maximum recommended cable length is 7.6 m (25 ft.). WARNING: OBSERVING THE INFRARED LIGHT SOURCE IN THE HBCS- 7150 AT CLOSE DISTANCES FOR PROLONGED PERIODS OF TIME MAY CAUSE INJURY TO THE EYE. When mounted with the rail in place, the infrared output flux is radiologically safe. With the rail removed, precau- tions should be taken to avoid prolonged visual observation. Mounting Considerations Slot Reader The slot reader (HBCS-7100/ 7108) is designed to be virtually tamper proof when mounted using the two rear mounting holes. In this case, the cable must be routed from the rear of the slot reader through the mounting surface (wall, door, etc.). When mounting the slot reader, the cable may be routed through the mounting surface (see above), or it may be routed along grooves in the base and exit the side of the slot reader at any of four points. This allows flexibility in the mounting orientation. Optics Module The optics/electronics module (HBCS-7150) is designed for applications which require a different slot width, integration into a larger housing, or a fixed beam stationary scanner. When using the optics module, the operating distance from the front surface of the module to the symbol will vary depending on the symbol resolution. Figure 1 shows the relationship between operat- ing range and minimum symbol resolution for a typical optics module. This relationship was applied in the design of the slot reader, where a slot width of 3.2 mm (0.125 in.) insures excellent performance reading bar code symbols which have a nominal resolution of 0.19 mm (0.0075 in.) and include normal printing errors. Figure 1. 0.05 (0.002) 8.0 (0.32) MINIMUM SYMBOL RESOLUTION – mm (INCHES) 0.35 (0.014) 7.0 (0.23) 6.0 (0.24) 4.0 (0.16) 1.0 (0.04) 0.15 (0.006) 0.25 (0.010) 2.0 (0.08) 5.0 (0.20) 3.0 (0.12) 0.10 (0.004) 0.20 (0.008) 0.30 (0.012) GUARANTEED OPERATING REGION OPERATING TYPICAL REGION |
Similar Part No. - HBCS-7150 |
|
Similar Description - HBCS-7150 |
|
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
