80km 10Gb/S Tunable DWDM XFP Transceiver 50GHz ITU Channel

Supports 9.95Gb/s to 11.3Gb/s bit rates

l Monolithically integrated full C-band tunable transmitter

l 50 GHz ITU channel spacing with integrated wavelength locker

l C-band-tunable Laser and APD receiver

l Maximum link length of 80km

l Full Duplex LC connector

l Hot-pluggable XFP footprint

l Supports Line-side and XFI loopback

l No Reference Clock required

l Built-in digital diagnostic functions

l Standard bail release mechanism

l Power dissipation <3.5W l

Case temperature range:0°C to 70°C

APPLICATIONS

DWDM 10GBASE-ZR/ZW 10G Ethernet

DWDM 80KM 10G Fiber Channel l

DWDM SONET OC-192&SDH STM-64

PRODUCT DESCRIPTION

Tunable 10 Gb/s XFP transceiver is an integrated ber optic transceiver that provides a high-speed serial link at signaling rates from 9.95 Gb/s to 11.35 Gb/s. The module complies with the 10 Gigabit small form factor pluggable (XFP) multisource agreement-MSA (INF-8077i) and Tunable XFP for ITU Frequency Grid Applications(SFF-8477)

It complies with the ITU-T G.698.1 standard with 50 GHz channel spacing for SONET/SDH, IEEEDWDM 10GBASE-ZR for 80 km reach (Ethernet), and DWDM 10GFC for 80 km reach (Fiber Channel)applications.

The transceiver integrates the receiver and transmit path on one module. On the transmit side, the 10 Gbps serial data stream is recovered, retimed, and passed to a modulator driver. The modulator driver biases and modulates a C-band-tunable integrated laser Mach-Zehnder (ILMZ), enabling data transmission over single-mode ber through an industry-standard LC connector. On the receiver side, the 10 Gbps data stream is recovered from an APD/ trans-impedance amplier, retimed, and passed to an output driver. This module features a hot-pluggable XFI-compliant electrical interface.

PRODUCT SELECTION

Wavelength Guide Pin Descriptions

Note:

1. When a tunable module is plugged in for the first time, it will go to a default channel, or Tx_DIS

asserted it will go to a standby condition. Tunable DWDM XFP-80D default channel is 1561.83nm,

with channel range from 1 to 82, and Tunable DWDM XFP-80D-2 default channel is 1563.45nm,

compatible with channel range from 1 to 88.

2.When the module is power cycled it will automatically go to the last channel selected, or Tx_DIS

asserted it will go to a standby condition. If Tx_DIS asserted, the last channel selected will be cleared,

and a valid new channel command will be required to set a channel.

3. If the Tx disabled and then re-enabled, the module returns to the last channel selected

Digital Diagnostic Functions

As defined by the XFP MSA,XFP 80km tunable transceivers provide digital diagnostic functions via a2-wire serial interface, which allows real-time access to the following operating parameters: • Transceiver temperature

• Laser bias current • Transmitted optical power • Received optical power • Transceiver supply voltage It also provides a sophisticated system of alarm and warning flags, which may be used to alert end-users when particular operating parameters are outside of a factory-set normal range.

The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver,Controller inside the transceiver, which is accessed through the 2-wire serial interface. When the serial protocol is activated, the serial clock signal (SCL pin) is generated by the host. The positive edge clocks data into the XFP transceiver into those segments of its memory map that are not write-protected. The negative edge clocks data from the XFP transceiver. The serial data signal (SDA pin) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation.

The memories are organized as a series of 8-bit data words that can be addressed individually or

sequentially. The 2-wire serial interface provides sequential or random access to the 8 bit parameters,addressed from 000h to the maximum address of the memory.

For more detailed information including memory map definitions, please see the XFP MSA Specification.

Cisco 10G XFP