FTLX1812M3BNL - Unspecified Finisar - Free user manual and instructions

USER MANUAL FTLX1812M3BNL Finisar

Preliminary Product Specification

Extended Temperature, 10Gb/s 80km TDM XFP Optical Transceiver

FTLX1812M3BNL

PRODUCT FEATURES

• Supports 8.5Gb/s to 11.3Gb/s bit rates
• Hot-pluggable XFP footprint
• Maximum link length of 80km
• RoHS-6 compliant (lead-free)
• Temperature-stabilized EML transmitter
- Duplex LC connector
• Power dissipation <3.5W
• Built-in digital diagnostic functions
• XFI Loop-back Support
- CDR bypass mode for <8Gb/s or legacy 8GFC XFP applications
• Temperature range: -5^ to 85^

Two metallic electronic devices with ports and connectors, no visible text or symbols on the main body.

APPLICATIONS

• S ONET OC-192 / SDH STM-64 ITU-T G.959.1 P1L1-2D2
• IE EE 802.3ae 10GBASE-ZR/ZW 80km 10G Ethernet
• E xtended 80km, 10GFC 1200-SM-LL-L and 8GFC, 800-SM-LC-L
• S upports OTN/ITU-T G.709 FEC protocols OTU1e, OTU2, and OTU2e
• 1 0G CPRI

Finisar's 80km FTLX1812M3B NL Small Form Factor 10Gb/s (XFP) transceivers comply with the current XFP Multi-Source Agreement (MSA) Specification ^1 . They are a true multi-protocol transceiver complying with 80km SONET OC-192 and SDH STM-64 per ITU-T G.959.1: P1L1-2D2, and also support 10GBASE-ZR/ZW 80km 10-Gigabit Ethernet, 10-Gigabit Fibre Channel 1200-SM-LL-L, and all ITU-T G.709 OTN/FEC (protocols up to 11.32Gb/s. The transceiver is also capable of supporting 8GFC, 800-SM-LC-L, with full compliance to the Tx & Rx electrical jitter specifications by adjusting a “rate select” bit through the I ^2 C interface. Digital diagnostics functions are available via a 2-wire serial interface, as specified in the XFP MSA. The transceiver is RoHS compliant and lead free per Directive 2002/95/EC ^3 , and Finisar Application Note AN-2038 ^4 .

PRODUCT SELECTION

FTLX1812M3BNL

I. Pin Descriptions

Pin	Logic	Symbol	Name/Description	Ref.
1		GND	Module	Ground	1
2	VEE5 Optional	-5.2 Power Supply - Not required
3	LVTTL-I	Mod-Desel	Module De-select; When held low allows the module to respond to 2-wire serial interface commands
4	LVTTL-O	Interrupt	Interrupt (bar); Indicates presence of an important condition which can be read over the serial 2-wire interface		2
5	LVTTL-I	TX_DIS	Transmitter Disable; Transmitter laser source turned off
6	VCC5	+5 Power Supply
7		GND	Module	Ground	1
8		VCC3	+3.3V	Power	Supply
9		VCC3	+3.3V	Power	Supply
10	LVTTL-I	SCL	Serial 2-wire interface clock		2
11	LVTTL-I/O	SDA	Serial 2-wire interface data line		2
12	LVTTL-O	Mod_Abs	Module Absent; Indicates module is not present. Grounded in the module.		2
13	LVTTL-O	Mod_NR	Module Not Ready; Finisar defines it as a logical OR between RX_LOS and Loss of Lock in TX/RX.		2
14	LVTTL-O	RX_LOS	Receiver Loss of Signal indicator		2
15		GND	Module Ground		1
16		GND	Module Ground		1
17	CML-O	RD-	Receiver inverted data output
18	CML-O	RD+	Receiver non-inverted data output
19		GND	Module Ground		1
20		VCC2	+1.8V Power Supply - Not required
21	LVTTL-I	P_Down/RST	Power Down; When high, places the module in the low power stand-by mode and on the falling edge of P_Down initiates a module reset
			Reset; The falling edge initiates a complete reset of the module including the 2-wire serial interface, equivalent to a power cycle.
22		VCC2	+1.8V Power Supply - Not required
23		GND	Module Ground		1
24	PECL-I	RefCLK+	Reference Clock non-inverted input, AC coupled on the host board - Not required
25	PECL-I	RefCLK-	Reference Clock inverted input, AC coupled on the host board - Not required
26		GND	Module Ground		1
27		GND	Module Ground		1
28	CML-I	TD-	Transmitter inverted data input
29	CML-I	TD+	Transmitter non-inverted data input
30		GND	Module Ground		1

Notes:
1. Module circuit ground is isolated from module chassis ground within the module.
2. Open collector; should be pulled up with 4.7k – 10kohms on host board to a voltage between 3.15V and 3.6V.

Diagram of Host Board Connector Block Pin Numbers and Names

II. Absolute Maximum Ratings

Parameter	Symbol	Min	Typ	Max	Unit	Ref.
Maximum Supply Voltage #1	Vcc3	-0.5		4.0	V
Maximum Supply Voltage #2	Vcc5	-0.5		6.0	V
Storage Temperature	T_S	-40		85	°C
Case Operating Temperature	T_OP	-5		85	°C
Receiver Damage Threshold	R_x_Damage	+5			dBm	1

Note #1: spec based on steady-state optical power.

III. Electrical Characteristics _OP = -6Ito 85 °C, V_CC5 = 4.75 to 5.25 Volts)

Parameter	Symbol		Min	Typ		Max
Supply Voltage #1 Vcc5 4.75 5.25	V
Supply Voltage #2 Vcc3 3.13 3.46	V
Supply Current – Vcc3 supply	Icc3			750	mA
Supply Current – Vcc5 supply	Icc5			350	mA
Module total power (-5 to 85°C)	P			3.5	W	1
Transmitter
Input differential impedance	R_in		100		Ω	2
Differential data input swing	Vin,pp	120		820	mV
Transmit Disable Voltage	V_D	2.0		Vcc	V	3
Transmit Enable Voltage	V_EN	GND		GND+ 0.8	V
Transmit Disable Assert Time				100	us
Receiver
Differential data output swing	Vout,pp	340	650	850	mV	4
Data output rise time	t_r			40	ps	5
Data output fall time t	f			40	ps	5
LOS Fault	V_LOS fault	Vcc – 0.5		V_CC\_HOST	V	6
LOS Normal	V_LOS nomn	GND		GND+0.5	V	6
Power Supply Rejection	PSR	See Note 6 below				7

Notes:

1. Maximum total power value is specified across the full temperature and voltage range.
2. After internal AC coupling.
3. Or open circuit.
4. Into 100 ohms differential termination.
5. 20 - 80 %
6. Loss Of Signal is open collector to be pulled up with a 4.7k - 10kohm resistor to 3.15 - 3.6V. Logic 0 indicates normal operation; logic 1 indicates no signal detected.
7. Per Section 2.7.1. in the XFP MSA Specification ^1 .

IV. Optical Characteristics (EOL,5 to 85°C, Vcc5 = 4.75 to 5.25 Volts)

Please note that the Transmitter of the FTLX1812M3BNL becomes operational within 5 seconds of power-up. This is due to the time required for the EML to reach its optimum operating temperature.

Parameter	Symbol		Min	Typ		Max
Transmitter
Output Opt. Pwr: 9/125 SMF P	OUT	0		+4	dBm
Optical Extinction Ratio	ER	9			dB
Center Wavelength	_c	1530		1565	pm
Sidemode Suppression ratio	SSRmin	30			dB
Tx Jitter (SONET) 20kHz-80MHz	Txj1			0.3	UI	1
Tx Jitter (SONET) 4MHz - 80MHz	Txj2			0.1	UI	1
Relative Intensity Noise	RIN			-130	dB/Hz
Receiver
Receiver Sensitivity @ 8.5Gb/s	RSENS1			-24	dBm	2,3
Receiver Sensitivity @ 9.95Gb/s	RSENS2			-24	dBm	2,3
Receiver Sensitivity @ 10.7Gb/s	RSENS3			-24	dBm	2,3
Receiver Sensitivity @ 11.1Gb/s	RSENS4			-23	dBm	2,3
Receiver Sensitivity @ 11.35Gb/s	RSENS5			-22.5	dBm	2,3
Maximum Input Power	PMAX	-7			dBm
Optical Center Wavelength	_c	1270		1600	nm
Receiver Reflectance	R_rx			-27	dB
Path penalty at 1600 ps/nm@ 8.5Gb/s	DP1			2	dB	4
Path penalty at 1600 ps/nm@ 9.95Gb/s	DP2			2	dB	4
Path penalty at 1600 ps/nm@ 10.7Gb/s	DP3			3	dB	4
Path penalty at 1450 ps/nm@ 11.1Gb/s (BER 1e-4)	DP4			3	dB	4
Path penalty at 1300 ps/nm@ 11.35Gb/s (BER 1e-4)	DP5			3	dB	4
LOS De-Assert	LOS D			-30	dBm
LOS Assert	LOS A	-37		-33	dBm
LOS Hysteresis		0.5			dB

Notes:

1. GR-253-CORE Issue 4
2. Measured at 1528-1600nm with worst ER; BER<10 ^-12 ; PRBS31.
3. Equivalent to -22.1 dBm OMA at ER = 9 dB.
4. Dispersion penalty is measured in loopback using 18 ps/(nm*km) fiber (SMF-28).

V. General Specifications

Parameter	Symbol		Min	Typ	Max
Bit Rate BR 8.5 11.35 Gb/s 1,3
Bit Error Ratio BER		10		-12
Max. Supported Link Length	L_MAX		80		km

Units

Ref.

Notes:

1. ITU-T G.959.1 P1L1-2D2, 10GBASE-ZR/ZW 10G Ethernet, 10G Fibre Channel 1200-SM-LL-L, ITU-T G.709 OTN/FEC (OTU2), 10GBASE-ZR/ZW OTN/FEC (OTU1e and OTU2e)
2. Tested with a 2^31-1 PRBS
3. 8.5G operation with electrical Tx & Rx jitter compliance to 800-SM-LC-L requires a "rate select" change in the I2C interface to Byte 117, Bit 0. Please refer to Section VIII for a full description.

VI. Environmental Specifications

Finisar XFP transceivers have an operating temperature range from 0^ C to +85^ C case temperature.

Parameter	Symbol	Min	Typ	Max	Units	Ref.
Case Operating Temperature	T_op	-5		85	°C
Storage Temperature	T_sto	-40		85	°C

VII. Regulatory Compliance

Finisar XFP transceivers are Class 1 Laser Products. They are certified per the following standards:

Feature	Agency	Standard	Certificate Number
Laser Eye Safety	FDA/CDRH	CDRH 21 CFR 1040 and Laser Notice 50	9210176-77
Laser Eye Safety	TÜV	EN 60825-1: 2007, EN60825-2:2004+A1IEC 60825-1: 2007 ( 2^nd Edition)IEC 60825-2: 2010 ( 3^rd Edition)	R72101686
Electrical Safety	TÜV	EN 60950:2006+A11	R72101686
Electrical Safety	UL/CSA	CLASS 3862.07CLASS 3862.87	2283290

Copies of the referenced certificates are available at Finisar Corporation upon request.

VIII. Digital Diagnostics Functions

As defined by the XFP MSA ^1 , Finisar XFP transceivers provide digital diagnostic functions via a 2-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 (DDTC) 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 documentation ^1 .

8.5Gb/s Fibre-Channel Support:

To operate the FTLX1812M3BNL at 8.5Gb/s Fibre-Channel, the transceiver CDRs need to be placed in "8GFC" mode by changing the register value in EEPROM-Table 0, Byte 117, Bit 0.

o EEPROM Byte 117, Bit 0 value for 8GFC operation: Bit 0 = 1
o EEPROM Byte 117, Bit 0 value for standard 10G operation: Bit 0 = 0

By default, a power cycling the transceiver will return the CDRs to standard 10G operation.

IX. Mechanical Specifications

Finisar's XFP transceivers are compliant with the dimensions defined by the XFP Multi-Sourcing Agreement (MSA).

XFP Transceiver (dimensions are in mm)

X. PCB Layout and Bezel Recommendations

XFP Host Board Mechanical Layout (dimensions are in mm)

XFP Detail Host Board Mechanical Layout (dimensions are in mm)

XFP Recommended Bezel Design (dimensions are in mm)

XI. References

1. 10 Gigabit Small Form Factor Pluggable Module (XFP) Multi-Source Agreement (MSA), INF-8077i, Rev 4.5 – August 2005. Documentation is currently available at http://www.xfpmsa.org/
2. Application Note AN-2035: “Digital Diagnostic Monitoring Interface for XFP Optical Transceivers” – Finisar Corporation, December 2003
3. Directive 2002/95/EC of the European Council Parliament and of the Council, "on the restriction of the use of certain hazardous substances in electrical and electronic equipment". January 27, 2003.
4. “Application Note AN-2038: Finisar Implementation Of RoHS Compliant Transceivers”, Finisar Corporation, January 21, 2005.

XII. For More Information

Finisar Corporation

1389 Moffett Park Drive

Sunnyvale, CA 94089-1133

Tel. [phone]

Fax [phone]

[e-mail]

www.finisar.com