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DELTA ELECTRONICS, INC.

 

1 2008/3/14

Rev. 0B

www.deltaww.com

 

RoHS Compliant SFP Transceiver for SONET OC-48/SDH STM-16 with 
Digital Diagnostic Monitoring Function 

 

FEATURES 

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Compliant with SFP Transceiver SFF-8472 
MSA specification with internal calibration 

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LCP-2488B4HDR compliant with Intra-office 
SONET OC-48 / SDH STM-16 (I-16.1) 

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3.3V Power Supply and TTL Logic 
Interface 

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EEPROM with Serial ID Functionality 

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Laser Class 1 Product which comply with the 
requirements of IEC 60825-1 and IEC 60825-2

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Duplex LC Connector interface 

Description 

The LCP-2488B4HDRx series are hot 

pluggable 3.3V Small-Form-Factor transceiver 
modules designed expressly for high-speed 
communication applications that require rates up to 
2.5Gb/s.   

The LCP-2488B4HDRx series are designed 

to be compliant with SFF-8472 SFP Multi-source 
Agreement (MSA) with digital diagnostic 
monitoring functions: Temperature, V

CC

, TX 

optical power, TX laser bias current, and RX 
received optical power. 

The post-amplifier of the LCP-2488B4HDRx 

series also includes a Loss of Signal (LOS) circuit 
that provides a TTL logic-high output when the 
received optical level is below a preset LOS 
Assert threshold. 

Performance 

Part number 

Link 

budget 

Distance in 

SMF 

LCP-2488B4HDR 8dB 2km 

 

Summary of Contents for LCP-2488B4HDR

Page 1: ...C Connector interface Description The LCP 2488B4HDRx series are hot pluggable 3 3V Small Form Factor transceiver modules designed expressly for high speed communication applications that require rates up to 2 5Gb s The LCP 2488B4HDRx series are designed to be compliant with SFF 8472 SFP Multi source Agreement MSA with digital diagnostic monitoring functions Temperature VCC TX optical power TX lase...

Page 2: ...ter Differential Input Voltage VDT 0 5 2 4 V 1 Transmitter Disable Input High VDISH 2 VCC 0 3 V Transmitter Disable Input Low VDISL 0 0 8 V Transmitter Fault Pull up Resistor RTX_FAULT 4 7 10 kΩ 2 Transmitter Fault Output High VTXFH 2 VCC 0 3 V Transmitter Fault Output Low VTXFL 0 0 8 V Receiver Receiver Differential Output Voltage VDR 0 35 1 2 V 3 Receiver LOS Load RRXLOS 4 7 10 kΩ 2 LOS Output V...

Page 3: ... Symbol Min Typ Max Unit Note Sensitivity Avg PS 18 dBm 2 Input Optical Wavelength λ 1266 1310 1360 nm LOS Deasserted Avg PA 20 dBm LOS Asserted Avg PD 45 dBm LOS Hysteresis PA PD 0 5 dB Overload P0 3 dBm Reflectance r 12 dB Notes 1 These are unfiltered 20 80 values 2 The sensitivity is provided at a BER of 1 10 12 or better with an input signal consisting of 2488Mb s 223 1 PRBS and ER 9dB Mean le...

Page 4: ...al ID interface 6 MOD DEF0 Module Definition 0 3 Note 3 Grounded in Module 7 Rate Select Not Connect 3 Function not available 8 LOS Loss of Signal 3 Note 4 9 VeeR Receiver Ground 1 Note 5 10 VeeR Receiver Ground 1 Note 5 11 VeeR Receiver Ground 1 Note 5 12 RD Inv Received Data Out 3 Note 6 13 RD Received Data Out 3 Note 7 14 VeeR Receiver Ground 1 Note 5 15 VccR Receiver Power 2 3 3 5 Note 7 16 Vc...

Page 5: ...on In the low state the output will be pulled to 0 8V 5 VeeR and VeeT may be internally connected within the SFP module 6 RD These are the differential receiver outputs They are AC coupled 100Ω differential lines which should be terminated with 100Ω differential at the user SERDES The AC coupling is done inside the module and is thus not required on the host board The voltage swing on these lines ...

Page 6: ... 01uF 0 01uF 0 1uF 10uF RES1 RES1 100 Ohms RES1 RES1 RES1 10k Ohms 100 Ohms VCC Protocol Vcc SerDes IC Protocol IC PLD PAL Mod_def 2 Mod_def 1 Mod_def 0 3 3V 3 3V DELTA SFP Module Preamp Tx_Disable Quantizer Tx_Fault TD TD VeeT RD RD Rx_LOS VeeR Tx_Disable Tx_Fault Rx_LOS RES1 4 7k to 10k Ohms VccT VccR Laser Driver Depands on SerDes IC used EEPROM ...

Page 7: ... 5 LOS Assert Time t_loss_on 100 μsec 6 LOS Deassert Time t_loss_off 100 μsec 7 Serial ID Clock Rate f_serial_clock 100 kHz Notes 1 Time from rising edge of TX_DISABLE to when the optical output falls below 10 of nominal 2 Time from falling edge of TX_DISABLE to when the modulated optical output rises above 90 of nominal 3 From power on or negation of TX_Fault using TX Disable 4 Time from fault to...

Page 8: ...DELTA ELECTRONICS INC 8 2008 3 14 Rev 0B www deltaww com Package Outline Drawing Complies with 21 CFR 1040 10 and 1040 11 Made in x FS ...

Page 9: ...about the module s present operating conditions 2 wire address 1010000 X A0h 2 wire address 1010001 X A2h 0 0 55 Alarm and Warning Thresholds 56 bytes 95 Serial ID Defined by SFP MSA 96 bytes 56 95 Cal Constants 40 bytes 96 96 119 Real Time Diagnostic Interface 24 bytes 127 Vender Specific 32 bytes 120 127 Vender Specific 128 128 247 User Writable EEPROM 120 bytes 255 Reserved in SFP MSA 128 bytes...

Page 10: ...04 VS 19 00 62 00 105 VS 20 44 D 63 CS1 Note 2 106 VS 21 45 E 64 00 107 VS 22 4C L 65 1A 108 VS 23 54 T 66 00 109 VS 24 41 A 67 00 110 VS 25 20 68 SN Note 3 111 VS 26 20 69 SN 112 VS 27 20 70 SN 113 VS 28 20 71 SN 114 VS 29 20 72 SN 115 VS 30 20 73 SN 116 VS 31 20 74 SN 117 VS 32 20 75 SN 118 VS 33 20 76 SN 119 VS 34 20 77 SN 120 VS 35 20 78 SN 121 VS 36 00 79 SN 122 VS 37 00 80 SN 123 VS 38 00 81...

Page 11: ...31 2 TX Power Low Warning Pl 1 dBm 3 32 33 2 RX Power High Alarm P0 2 34 35 2 RX Power Low Alarm PS 2 36 37 2 RX Power High Warning P0 1 38 39 2 RX Power Low Warning PS 1 dBm 4 40 45 16 Reversed 56 91 36 External Calibration Constants 92 94 3 Reversed 95 1 Checksum 5 96 97 2 Real Time Temperature 98 99 2 Real Time Supply Voltage 100 101 2 Real Time Tx Bias Current 102 103 2 Real Time Tx Optical Po...

Page 12: ...low low alarm level 113 7 Rx Power High Alarm Set when received power exceeds high alarm level 113 6 Rx Power Low Alarm Set when received power is below low alarm level 113 5 0 Reserved 116 7 Temp High Warning Set when internal temperature exceeds high warning level 116 6 Temp Low Warning Set when internal temperature is below low warning level 116 5 Vcc High Warning Set when internal supply volta...

Page 13: ... 4 3 IEC 1000 4 3 5 3 Immunity Electrostatic Discharge to the Duplex SC Receptacle EN 61000 4 2 IEC 1000 4 2 IEC 801 2 5 4 Electrostatic Discharge to the Electrical Pins MIL STD 883C Method 3015 4 EIAJ 1988 3 2B Version 2 Machine model 5 1 Satisfied with electrical characteristics of product spec 2 No physical damage Ordering information for SFP modules LCP 2488B4HDRX1 X1 Temperature Blank 5 to 70...

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