Families of Small Form Factor Pluggable (SFP) Optical Transceivers
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x Z will refer collectively to the en-tire product family encompassing this range of product features. > The AFCT-575 x Z family of SFP optical transceivers for OC12/STM-4 oers the customer a range of design op- tions, including optional DMI (further described later), extended or industrial temperature ranges, and standard push-button or or bail delatch. The AFCT-5755Z fam- ily targets applications requiring DMI features, and the AFCT-5750Z family is streamlined for those applications where DMI features are not needed. Throughout this document, AFCT-575 > Optional Digital Diagnostic Monitoring available - AFCT-5750Z family: without DMI - AFCT-5755Z family: with DMI > Per SFF-8472, diagnostic features on AFCT-5755Z family enable Diagnostic Monitoring Interface for optical transceivers with real-time monitoring of: - Transmitted optical power - Received optical power - Laser bias current - Temperature - Supply voltage Without DMI AFCT-5750LZ Extended* Standard SR (2km) AFCT-5750PZ Extended* Bail SR AFCT-5750ALZ Industrial* Standard SR AFCT-5750APZ Industrial* Bail SR AFCT-5750TLZ Extended* Standard IR (15km) AFCT-5750TPZ Extended* Bail IR AFCT-5750ATLZ Industrial* Standard IR AFCT-5750ATPZ Industrial* Bail IR > Part Number Temperature Design Distance > Compliant with SFF-8074i SFP transceiver specica- tion The AFCT-575 x Z family consists of the following prod-ucts: > Compliant with ITU-T G957 STM-4 I-4 (2 km) and STM-4 S-4.1 (15 km) With DMI AFCT-5755LZ Extended* Standard SR (2km) AFCT-5755PZ Extended* Bail SR AFCT-5755ALZ Industrial* Standard SR AFCT-5755APZ Industrial* Bail SR AFCT-5755TLZ Extended* Standard IR (15km) AFCT-5755TPZ Extended* Bail IR AFCT-5755ATLZ Industrial* Standard IR AFCT-5755ATPZ Industrial* Bail IR Part Number Temperature Design Distance > Compliant with Telcordia GR253 SR (2 km), IR-1 (15 km) > Class 1 CDRH/IEC 825 eye safety compliant > Operating case temperature range 10 ְC to +85 C (Extended) Ж40 C to +85 аC (Industrial) > Multitrate operation from 155Mbps to 622Mbps > Manufactured in an ISO 9001 compliant facility > SONET/SDH switch infrastructure > Broadband aggregation applications > Metro edge switching > Metro and access multi-service platforms > Suitable for Fast Ethernet applications > AFCT-576 x Z family of OC3 SFP transceivers with op-tional DMI AFCT-5745L/P family of OC48 SFP transceivers with DMI > * Extended Temperature Range is -10 to 85 degrees C Industrial Temperature Range is -40 to 85 degrees C

The receiver section for the AFCT-575 x Z contains an InGaAs/InP photo detector and a preamplier mounted in an optical subassembly. This optical subassembly is coupled to a post amplier/decision circuit on a circuit board. The design of the optical subassembly provides better than 12 dB Optical Return Loss (ORL). Connection to the receiver is provided via a LC optical connector. > The receiver section contains a loss of signal (RX_LOS) circuit to indicate when the optical input signal power is insucient for SONET/SDH compliance. A high signal indicates loss of modulated signal, indicating...

The AFCT-575 x Z family is available in either Extended (-10 to +85C) or Industrial (-40 to +85аC) temperature ranges. > The AFCT-575 x Z can withstand an injection of PSN on the V > CC lines of 100 mV ac without a degradation in eye mask margin to 10% on the transmitter and a 1 dB sensitivity penalty on the receiver. This occurs when the product is used in conjunction with the MSA recommended power supply lter shown in Figure 3. > The transceiver regulatory compliance is provided in Table 1 as a gure of merit to assist the designer. The overall equipment design will determine the...

x Z is compatible with typical industry pro-duction environments.The second condition is static discharge to the exterior of the host equipment chassis after installation. To the extent that the duplex LC optical interface is exposed to the outside of the host equipment chassis, it may be subject to system-level ESD requirements. The ESD performance of the AFCT-575 x Z exceeds typical industry standards. Table 1 documents ESD immunity to both of these conditions. > x Z to a non-approved optical source, operating above the recommended absolute maximum conditions may be considered an act of...

Notes: 1. TX Fault is an open collector/drain output, which should be pulled up with a 4.7K 10K ֢Ħ resistor on the host board. Pull up voltage between 2.0 V and VccT, R+0.3 V. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8 V. By default, TX_FAULT is set to trigger on hardware faults only.2. TX Disable input is used to shut down the laser output per the state table below with an external 4.7 - 10 K Ω resistor on the host board to a supply < VccT,R+0.3 V. When high, this output indicates the received...

7Tx Disable StateDigital state of SFP Tx Disable Input Pin (1 = Tx_ Disable asserted)6Soft Tx DisableRead/write bit for changing digital state of SFP Tx_Disable function > 1 5Reserved 4Rx Rate Select StateDigital state of SFP Rate Select Input Pin (1 = full bandwidth of 622 Mbit) > 2 3Reserved 2Tx Fault StateDigital state of the SFP Tx Fault Output Pin (1 = Tx Fault asserted) > 3 1Rx LOS StateDigital state of the SFP LOS Output Pin (1 = LOS asserted) 0Data Ready (Bar)Indicates transceiver is powered and real time sense data is ready (0 = Ready) > Notes: 1. Bit 6 is logic ORd with the SFP...

CC > 3.15 V Tx_FAULTV t_offTx_FAULTTx_DISABLETRANSMITTED SIGNAL t_on t_initTx_DISABLETRANSMITTED SIGNAL INSERTION > Tx_FAULTOCCURANCE OF FAULT Tx_FAULTOCCURANCE OF FAULTTx_DISABLETRANSMITTED SIGNAL t_faultTx_DISABLETRANSMITTED SIGNAL > t_reset t_init* * CANNOT READ INPUT... Tx_FAULTOCCURANCE OF FAULT > OCCURANCEOF LOSS OPTICAL SIGNALLOS t_faultTx_DISABLETRANSMITTED SIGNAL t_reset > t_loss_on t_loss_off

Notes: 1. Bail delatch is colored BLUE for SONET/Single-Mode Identication. >