FCL-8520 FINISAR | Alldatasheet

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Technical content

1000BASE-T Copper GBIC Transceivers FCL-8520/8521-3 Product Features

  • Up to 1.25Gb/s bi-directional data links
  • RoHS compliant and Lead Free
  • Extended operating temperature range (0°C to +75°C)
  • Hot-pluggable
  • Fully metallic enclosure for low EMI
  • Low power (1.5W typical)
  • Access to physical layer IC via 2- wire serial bus

Applications

  • 1.25 Gigabit Ethernet over Cat 5 cable Finisar’s FCL-8520/8521-3 1000BASE-T Copper GBIC transceivers are based on the GBIC Specification Revision 5.51. They are compatible with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE Std 802.3z2 and IEEE Std 802.3ab3. The FCL-8520-3 uses the GBIC’s RX_LOS pin for link indication, and 1000BASE-X auto-negotiation must be disabled on the host system. The FCL-8521-3 is compatible with 1000BASE-X auto-negotiation, but does not have a link indication feature (RX_LOS is internally grounded). See AN-2032, “Commonly Asked Questions Regarding Auto-negotiation on Finisar’s 1000BASE-T GBICs”4, for a more complete explanation on the differences between the two models. PRODUCT SELECTION Part Number Link Indicator on RX_LOS Pin Compatible with 1000BASE-X Auto-negotiation FCL-8520-3 Yes No FCL-8521-3 No Yes © Finisar Corporation Page 1 Rev A, February 2006

Table 1. GBIC to host connector pin assignment

Input Voltage Vcc 4.5 5 5.5 V Referenced to GND. Surge Current Isurge 450 mA Hot plug. See Note 1. Table 2. +5 Volt electrical power interface

  1. Caution: Power consumption and inrush current are higher than the specified

values in the GBIC Specification Rev 5.51. Table 3. Low-speed signals, electronic characteristics

Table 4. High-speed electrical interface, transmission line-GBIC All high-speed signals are AC-coupled internally. Table 5. High-speed electrical interface, host-GBIC Data Rate BR 1.25 Gb/sec IEEE 802.3 compatible. Table 6. General specifications

  1. Clock tolerance is ±50 ppm
  2. The FCL-8520/8521-3 is a full-duplex devi ce in the “Preferred Master” mode.
  3. Automatic crossover detection is enabled. External crossover cable is not required

Table 7. Environmental specifications document number MV-5100281-00). Table 8. Serial bus timing requirements

45 connector. See Figure 1 below for details. Figure 1. FCL-8520/8521-3 mechanical dimensions

FCL-8520/8521-3 1000BASE-T GBIC Product Specification Finisar IX. References 1. “Gigabit Interface Converter (GBIC) Revision 5.5”. Sun Microsystems Computer 2. IEEE Std 802.3z. IEEE Standards Department, 2000. 3. “IEEE Std 802.3ab-1999 ‘Physical Layer Parameters and Specifications for 1000 Mb/s Operation Over 4-Pair of Category 5 Balanced Copper Cabling, Type 1000BASE-T”. IEEE Standards Department, 1999. 4. “Application Note AN-XXXX: Commonly Asked Questions Regarding Auto- negotiation on Finisar’s 1000BASE-T GBICs”, Finisar Corporation, February 2003 5. “AT24C01A/02/04/08/16 2-Wire Serial CMOS E2PROM”. Atmel Corporation. www.Atmel.com 6. “Alaska Ultra 88E1011/88E1001S Integrated 10/100/1000 Gigabit Ethernet Transceiver”. Marvell Corporation. www.marvell.com X. For More Information Finisar Corporation

1389 Moffett Park Drive

Sunnyvale, CA 94089-1133 Tel. 1-408-548-1000 Fax 1-408-541-6138 sales@finisar.com www.finisar.com © Finisar Corporation Page 7 Rev A, February 2006