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Buen manual de instrucciones

Las leyes obligan al vendedor a entregarle al comprador, junto con el producto, el manual de instrucciones Finisar AN-2030. La falta del manual o facilitar información incorrecta al consumidor constituyen una base de reclamación por no estar de acuerdo el producto con el contrato. Según la ley, está permitido adjuntar un manual de otra forma que no sea en papel, lo cual últimamente es bastante común y los fabricantes nos facilitan un manual gráfico, su versión electrónica Finisar AN-2030 o vídeos de instrucciones para usuarios. La condición es que tenga una forma legible y entendible.

¿Qué es un manual de instrucciones?

El nombre proviene de la palabra latina “instructio”, es decir, ordenar. Por lo tanto, en un manual Finisar AN-2030 se puede encontrar la descripción de las etapas de actuación. El propósito de un manual es enseñar, facilitar el encendido o el uso de un dispositivo o la realización de acciones concretas. Un manual de instrucciones también es una fuente de información acerca de un objeto o un servicio, es una pista.

Desafortunadamente pocos usuarios destinan su tiempo a leer manuales Finisar AN-2030, sin embargo, un buen manual nos permite, no solo conocer una cantidad de funcionalidades adicionales del dispositivo comprado, sino también evitar la mayoría de fallos.

Entonces, ¿qué debe contener el manual de instrucciones perfecto?

Sobre todo, un manual de instrucciones Finisar AN-2030 debe contener:
- información acerca de las especificaciones técnicas del dispositivo Finisar AN-2030
- nombre de fabricante y año de fabricación del dispositivo Finisar AN-2030
- condiciones de uso, configuración y mantenimiento del dispositivo Finisar AN-2030
- marcas de seguridad y certificados que confirmen su concordancia con determinadas normativas

¿Por qué no leemos los manuales de instrucciones?

Normalmente es por la falta de tiempo y seguridad acerca de las funcionalidades determinadas de los dispositivos comprados. Desafortunadamente la conexión y el encendido de Finisar AN-2030 no es suficiente. El manual de instrucciones siempre contiene una serie de indicaciones acerca de determinadas funcionalidades, normas de seguridad, consejos de mantenimiento (incluso qué productos usar), fallos eventuales de Finisar AN-2030 y maneras de solucionar los problemas que puedan ocurrir durante su uso. Al final, en un manual se pueden encontrar los detalles de servicio técnico Finisar en caso de que las soluciones propuestas no hayan funcionado. Actualmente gozan de éxito manuales de instrucciones en forma de animaciones interesantes o vídeo manuales que llegan al usuario mucho mejor que en forma de un folleto. Este tipo de manual ayuda a que el usuario vea el vídeo entero sin saltarse las especificaciones y las descripciones técnicas complicadas de Finisar AN-2030, como se suele hacer teniendo una versión en papel.

¿Por qué vale la pena leer los manuales de instrucciones?

Sobre todo es en ellos donde encontraremos las respuestas acerca de la construcción, las posibilidades del dispositivo Finisar AN-2030, el uso de determinados accesorios y una serie de informaciones que permiten aprovechar completamente sus funciones y comodidades.

Tras una compra exitosa de un equipo o un dispositivo, vale la pena dedicar un momento para familiarizarse con cada parte del manual Finisar AN-2030. Actualmente se preparan y traducen con dedicación, para que no solo sean comprensibles para los usuarios, sino que también cumplan su función básica de información y ayuda.

Índice de manuales de instrucciones

  • Página 1

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 1 1 Application Note AN - 2030 2 Digital Diagnostic Monitoring Interface 3 for SFP Optical Transceivers 4 5 1. Scope and Overview 6 7 This document defines an enhanced digital diagnostic monitoring interface available in 8 Finisar SFP a[...]

  • Página 2

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 2 1 3. Enhanced Digital Diagnostic Interface Definition 2 3 Overview 4 5 The enhanced digital diagnostic interface is a superset of the MOD - DEF interface 6 defined in the SFP MSA document dated September 14, 2000. The 2 - wire interfa[...]

  • Página 3

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 3 1 Figure 3.1: Digital Diagnostic Memory Map 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 Specific Data Field De scriptions 38 39 The information in italics in Table 3.1 indicates [...]

  • Página 4

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 4 Table 3.1 Serial ID: Data Fields – Address A0 1 Data Address Size (Bytes) Name of Field Description of Field BASE ID FIELDS 0 1 Identifier Type of serial transceiver (see table 3.2) 1 1 Ext. Identifier Extended identifier of type of[...]

  • Página 5

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 5 Identifier 1 The identifier value sp ecifies the physical device described by the serial information. 2 This value shall be included in the serial data. The defined identifier values are shown in 3 table 3.2. Finisar SFP modules have [...]

  • Página 6

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 6 1 TABLE 3.3: Connector values 2 Value Description of connector 00h Unknown or unspecified 01h SC 02h Fibre Channel Style 1 copper connector 03h Fibre Channel Style 2 cop per connector 04h BNC/TNC 05h Fibre Channel coaxial headers 06h [...]

  • Página 7

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 7 Transceiver 1 The following b it significant indicators define the electronic or optical interfaces that are 2 supported by the transceiver. At least one bit shall be set in this field. For Fibre Channel 3 transceivers, the Fibre Chan[...]

  • Página 8

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 8 The SONET compliance code bits allow the host to determine with which specifications 1 a SONET transceiver complies. For each bit rate defined in Table 3.5 (OC - 3, OC - 12, 2 OC - 48), SONET specifi es short reach (SR), intermediate [...]

  • Página 9

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 9 BR, nominal 1 The nominal bit rate (BR, nominal) is specified in units of 100 Megabits per second, 2 rounded off to the nearest 100 Megabits per second. The bit rate includes t hose bits 3 necessary to encode and delimit the signal as[...]

  • Página 10

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 10 transceiver technology. It is common for the trans ceiver to support both 50 micron and 1 62.5 micron fiber. 2 3 Length (Copper) 4 This value specifies the minimum link length that is supported by the transceiver while 5 operating in[...]

  • Página 11

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 11 Vendor Rev 1 The vendor revision number (vendor rev) is a 4 - byte field that contains ASCII 2 characters, left - aligned and padded on the right with ASCII spaces (20h), defining the 3 vendor’s product revision number. A value of [...]

  • Página 12

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 12 Options 1 The bits in the option field shall specify the options implemented in the transceiver as 2 described in table 3.6. Standard Finisar SFP transceivers do not implement TX_FAULT 3 or RATE_SELECT, so byte 65 set to 00010010b . [...]

  • Página 13

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 13 1 Date Code 2 The date code is an 8 - byte field that contains the vendor’s date code in ASCII 3 characters. The date code is mandatory. The date code shall be in the format specified 4 by table 3.7. 5 Table 3.7: Date Code 6 7 Data[...]

  • Página 14

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 14 Table 3.8: Diagnostic Monitoring Type 1 Data Address Bits Description 92 7 Reserved for legacy diagnostic implementations. Must be ‘0’ for compilance with this document. 92 6 Digital diagnostic monitoring implemented (described i[...]

  • Página 15

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 15 Enhanced Options 1 “Enhanced Options” is a 1 byte field with 8 single bit in dicators which describe the 2 optional digital diagnostic features implemented in the transceiver. Since transceivers 3 will not necessarily implement a[...]

  • Página 16

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 16 1 Table 3.10: I/O Timing for Soft Control & Status Functions 2 Parameter Symbol Min Max Units Conditions TX_DISABLE assert time t_off 100 ms Time from TX_DISABLE bit set 1 until optical output falls below 10% of nominal TX_DISABL[...]

  • Página 17

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 17 1 Diagnostics 2 2 wire serial bus address 1010001X (A2h) is used to access measurements of 3 transceiver temperature, internally measured supply voltage, TX bias current, TX out put 4 power, received optical power, and two additional[...]

  • Página 18

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 18 calibrated to absolute units using the most representative fiber output type. 1 Accuracy is ±3dB. Data is not valid when the transmitter is disabled. 2 5) Measured RX received average optical power in mW. Represent ed as a 16 bit 3 [...]

  • Página 19

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 19 External Calibration 1 Measurements are raw A/D values and must be converted to real units using calibration 2 constants stored in EEPROM locations 56 – 95 at 2 wire serial bus address A2h (see 3 Table 3.15) . Calibration is valid [...]

  • Página 20

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 20 5) Measured received optical power. Received power, RX_PWR, is given in µW by 1 the following equation: 2 Rx_PWR (µW) = Rx_PWR(4) * Rx_PWR AD 4 (16 bit unsigned integer) + 3 Rx_PWR(3)*Rx_PWR AD 3 (16 bit unsigned integer) + Rx_PWR([...]

  • Página 21

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 21 Calibration Constants 1 2 TABLE 3.1 5 : Calibra tion constants for External Calibration Option 3 (2 Wire Address A2h) 4 5 Address # Bytes Name Description 56 - 59 4 Rx_PWR(4) Single precision floating point calibration data - Rx opti[...]

  • Página 22

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 22 The slope constants at addresses 76, 80,84, and 88, are unsigned fixed - point binary 1 numbers. The slope will therefore always be positive. The binary point is in between 2 the upper and lower bytes, i.e., between the eight and nin[...]

  • Página 23

    AN - 2030: Digital Diagnostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 23 1 Table 3.16c: IEEE - 754 Single - Precision Floating Point Number Format 2 FUNCTION SIGN EXPONENT MANTISSA BIT 31 30……………………23 22……………………………………………………………0 BYTE 3 2 1 0 ß [...]

  • Página 24

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 24 Real Time Diagnostic Registers TABLE 3. 17 : A/D Values and Status Bits (2 Wire Address A2h) Byte Bit Name Descriptio n Converted analog values. Calibrated 16 bit data. 96 All Temperature MSB Internally measured module temperature. [...]

  • Página 25

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 25 110 1 LOS Digital state of the LOS Output Pin. Updated within 100msec of change on pin. This function is implemented in all Fin isar transceivers with digital diagnostic capability. 110 0 Data_Ready_Bar Indicates transceiver has ach[...]

  • Página 26

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 26 Table 3. 18 : Alarm and Warning Flag Bits (2 - Wire Address A2h) Reserved Optional Alarm and Warning Flag Bits 112 7 Temp High Alarm Set when internal temperature exceeds high alarm level. 112 6 Temp Low Alarm Set when internal temp[...]

  • Página 27

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 27 Bytes 123 – 126 contain write - only RAM for entry of a 32 bit password that allows access to user writable EEPROM at locations 128 - 247. The default password for Finisar devices is 0, however it can be set to any value at the fa[...]

  • Página 28

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 28 4. DDTC Electrical Interface Definition Overview The Digital Diagnostics Transceiver Controller (DDTC) IC manages all system monitoring functions in the SFP transceiver module. The DDTC is accessed through a 2 - wire serial interfac[...]

  • Página 29

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 29 2 - Wire Interface Reset : After any interruption in protocol, power loss, or system reset, the following steps reset the DDTC . 1. Clock up to nine cycles. 2. Look for SDA high in each cycle while SCL is high. 3. Create a Start Con[...]

  • Página 30

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 30 Acknowledge Polling : Once the internally - timed write has started and the DDTC inputs are disabled, acknowledge polling can be initiated. The process involves transmitting a start condition followed by the device address. The R/W [...]

  • Página 31

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 31 Detailed 2 - Wir e Serial Port Operation This section gives a more detailed description of 2 - wire theory of operation. The 2 - wire serial port interface supports a bi - directional data transmission protocol with device addressin[...]

  • Página 32

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 32 Within the bus specifications a regular mode (10 0 kHz clock rate) and a fast mode (400 kHz clock rate) are defined. The DDTC works in both modes. 5) Acknowledge : Each receiving device, when addressed, is obliged to generate an Ack[...]

  • Página 33

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 33 of the command/control byte (R/W) defines the operation to be performed. When set to a 1 a read operation is selected, and when set to a 0 a write operation is selected. Following the START condition, the DDTC monitors the SDA bus c[...]

  • Página 34

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 34 DC ELECTRICAL CHARACTERISTICS ( Vcc = 3.15V to 3.60V) PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS NOTES Input Leakage (SDA, SCL) I LI - 1 +1 µ A 2 Input Logic 1 (SDA, SCL) V IH 0.7Vcc Vcc+0.5 V 1 Input Logic 0 (SDA, SCL) V IL GND [...]

  • Página 35

    AN - 2030: Digital Diagn ostic Monitoring Interface for Optical Transceivers F i n i s a r 9/26/02 Revision D Page 35 For More Information Finisar Corporation 1308 Moffett Park Drive Sunnyvale, CA 94089 - 1133 Tel. (408) 548 - 1000 Fax (408) 541 - 6138 sales@finisar.com www.finisar.com[...]