communications modules & subsystems key features ? sfp msa compatible fully oc-3 sonet compliant at all reaches: ir-1, lr-1, and lr-2 microprocessor-based design fully implements the digital diagnostic monitoring interface automatic output power and extinction ratio control over temperature and lifetime to compensate for laser efficiency degradation expandable options, such as a custom software user interface the jdsu ct2 series oc-3 (155 mb/s) transceiver module integrates optics and electronics in a small form factor pluggable (sfp) package. it is multi source agreement (msa) compatible and designed for operation at 1310 nm and 1550 nm. the ct2 series sfp transceiver provides a fully oc-3 sonet compliant interface between the sonet/sdh photonic layer and the electrical layer. its microprocessor-based modular design imple ments all features specified in the sfp msa compatible 2-wire serial digital diagnostic monitoring interface for optical transceivers. the major components in this module include a fabry-perot or uncooled distributed feedback (dfb) based optical transmitter, a pin based optical receiver with integrated transimpedence amplifier (tia), a microprocessor, a limiting post amplifier, and a laser driver. the modular transceiver design offers a "hot pluggable" interface, allowing the same basic architecture to be used for ir-1, lr-1, and lr-2 versions. applications ? metro access metro core wide area networks compliance gr-253-core itu-t g.957 sff-8472 oc-3 sfp transceiver (1310 nm and 1550 nm) ct2 series north america : 800 498-jdsu (5378) website : www.jdsu.com worldwide : +800 5378-jdsu
2 oc-3 sfp transceiver dimensions diagram (specifications in mm unless otherwise noted; see dimensions table on next page.) a a d k ref j min f ref f ref m c p n section a-a l min x 45 y max b g ref h max r max q s t u w y max x ref v see detail y detail y z z ag af ae ref section z-z aa ref ab max z a
3 oc-3 sfp transceiver dimension table for the ct2 designator dimension tolerance comments a 13.7 mm 0.1 mm transceiver width, nose piece or front that extends inside cage b 8.6 mm 0.1 mm transceiver height, front, that extends inside cage c 8.5 mm 0.1 mm transceiver height, rear d 13.4 mm 0.1 mm transceiver width, rear e 1.0 mm maximum extension of front sides outside of cage f 2.3 mm reference location of cage grounding springs from centerline, top g 4.2 mm reference location of side cage grounding springs from top h 2.0 mm maximum width of cage grounding springs j 28.5 mm minimum location of transition between nose piece and rear of transceiver k 55.0 mm reference transceiver overall length l 1.1 mm x 45 minimum chamfer on bottom of housing m 2.0 mm 0.25 mm height of rear shoulder from transceiver printed circuit board n 2.25 mm 0.1 mm location of printed circuit board to bottom of transceiver p 1.0 mm 0.1 mm thickness of printed circuit board q 9.2 mm 0.1 mm width of printed circuit board r 0.7 mm maximum width of skirt in rear of transceiver s 45.0 mm 0.2 mm length from latch shoulder to rear of transceiver t 34.6 mm 0.3 mm length from latch shoulder to bottom opening of transceiver u 41.8 mm 0.15 mm length from latch shoulder to end of printed circuit board v 2.7 mm 0.05 mm length from latch shoulder to shoulder of transceiver outside of cage (location of positive stop) w 2.7 mm 0.1 mm clearance for actuator tines x 7.3 mm reference transceiver length extending outside of cage y 2.0 mm maximum maximum length of top and bottom transceiver extending outside of cage z 0.45 mm 0.05 mm height of latch boss aa 8.6 mm reference transceiver height, front, that extends inside the cage ab 2.6 mm maximum length of latch boss ae 6.0 mm reference width of cavity that contains the actuator bail latch color code definition bail latch color wavelength typical reach yellow 1310 nm ir (15 km) red 1310 nm lr (40 km) white 1550 nm lr (80 km)
4 oc-3 sfp transceiver ct2 electrical pad layout 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 veet veet veer veer vccr vcct td- td+ rd+ rd- veet veer veer los tx fault tx disable mod-def(2) mod-def(1) mod-def(0) rate select top of board bottom of board (as viewed through top of board) transceiver pin descriptions pin description td un-clocked, multirate, differential serial bit stream (oc-3) used to drive the optical transmitter. tdb internally ac coupled and terminated via internal 100 ? differential impedence. rd differential received electrical signal capable of detecting oc-3 bit patterns. rdb the differential pair is internally biased and ac coupled. this signal requires 100 ? external differential termination. rate_select internally monitored and available for future use. can be customized for specific applications. txdis transmitter disable input. a logic high on this input pin disables the transmitter's laser so that there is no optical output. if left open the transmitter will be disabled. los loss of signal (open collector). a logic high on this output indicates an incoming signal level that is less than -36 dbm but no greater than -44 dbm. los shall deassert (logic low) when a 3 db (maximum), 0.5 db (mininum) hysteresis is obtained. tx_fault transmitter fault (open collector). a logic high indicates that the transmitter is in a fault condition. mod_def(0) mod_def(0) is internally grounded to indicate the presence of the module. must be pulled-up on host board with a 10 k ? resistor. mod_def(1) mod_def(1) is the clock of the 2 wire interface for module monitoring. mod_def(2) mod_def(2) is the data line of the 2 wire interface for module monitoring. vccr,vcct receiver, transmitter power supply, respectively veer, veet receiver, transmitter ground, respectively. the chassis ground and circuit ground isolation is configurable.
5 oc-3 sfp transceiver absolute maximum ratings parameter minimum maximum extended operating case temperature range -40 c 85 c storage case temperature range -40 c 85 c supply voltage -0.5 v 4.0 v voltage on any input/output pin 0 v vcc high-speed output source current - 50 ma lead soldering temperature/time - 250 c/10 seconds operating relative humidity (non-condensing) 5% 85% receiver optical input power (pin) - 3 dbm transceiver electrical input/output characteristics parameter minimum maximum input data signal levels input voltage swing, dvin (internally ac coupled) 200 mv 2000 mv transmitter disable input (disabled/enabled) 2.0 v/0 v vcc/0.8 v rate select input (high data rate/low data rate) 2.8 v/0 v vcc/0.6 v transmitter fault output (asserted/deasserted) 2.4 v/0 v vcc/0.5 v output data signal levels 1 output voltage swing, dvout (internally ac coupled) 400 mv 2000 mv loss-of-signal output (output high, voh/output low, vol) 2.4 v/0 v vcc/0.5 v 1. terminated into 100 ? differential. these levels are guaranteed down to 2 db lower than the typical receiver sensitivity for each data rate and reach. (vcc = 3.3 v5%)
6 oc-3 sfp transceiver timing of status and control input/output parameter symbol condition specification tx_disable assert time t_off time from rising edge of tx_disable to when the maximum 10 s output optical power falls below 10% of nominal tx_disable deassert time t_on time from falling edge of tx_disable to when the maximum 10 s output optical power rises above 90% of nominal time to initialize t_init upon power up or negation of tx_fault due to tx_disable maximum 300 ms tx_fault assert time t_fault time from a fault condition to tx_fault assertion maximum 100 s tx_disable for reset t_reset time tx_disable must be held high to reset tx_fault minimum 10 s los assert time t_loss_on time from loss of signal to assertion of los maximum 100 s los deassert time t_loss_off time from non-loss condition to los deassertion maximum 100 s 2-wire serial clock rate f_serial_clock - maximum 100 khz power supply voltage parameter ir-1 lr-1 lr-2 supply voltage minimum 3.1 v 3.1 v 3.1 v typical 3.3 v 3.3 v 3.3 v maximum 3.5 v 3.5 v 3.5 v power supply current drain 1 typical 222 ma 245 ma 245 ma maximum 300 ma 300 ma 300 ma 1. applies to hardware revision 2. does not include output termination resistor current.
7 oc-3 sfp transceiver specifications parameter ir-1 lr-1 lr-2 average output power 1 minimum -15 dbm -5 dbm -5 dbm typical - -2.5 dbm -2.5 dbm maximum -8 dbm 0 dbm 0 dbm bol power output 1 minimum - -4 dbm -4 dbm typical - -2.5 dbm -2.5 dbm maximum - -1 dbm -1 dbm tx operating wavelength minimum 1261 nm 1263 nm 1480 nm typical - 1310 nm 1550 nm maximum 1360 nm 1360 nm 1580 nm spectral width 2 (rms) typical - - 0.3 nm maximum 4 nm 3 nm 1 nm side mode suppression ratio 3 (dfb laser) minimum - - 30 db extinction ratio 4 (bol) minimum - 11.0 db 11.0 db typical - 12.0 db 12.0 db maximum - 14.0 db 14.0 db extinction ratio 4 (eol) minimum 8.2 db 10.0 db 10.0 db optical rise and fall times (20 to 80%) maximum 2200 ps 300 ps 300 ps eye mask of optical output compliant with bellcore tr-nwt-000253 eye mask margin 5 (filtered) minimum - 25% 25% operating receiver wavelength minimum 1265 nm 1260 nm 1260 nm maximum 1625 nm 1620 nm 1620 nm jitter generation (peak-to-peak) 6 maximum - 30 mui p-p 30 mui p-p jitter generation (rms) 6 maximum - 3 mui rms 3 mui rms power output with transmitter disabled typical - -50 dbm - maximum - -40 dbm -40 dbm receiver sensitivity minimum - -36 dbm -36 dbm (bol, ber=1 x 10 -10 , er=12 db) typical - -37 dbm -37 dbm receiver sensitivity (eol, ber=1 x 10 -10 , er=10 db) minimum -28 dbm -34 dbm -34 dbm maximum received optical power minimum -8 dbm -10 dbm -10 dbm link status response time minimum 3 s 3 s 3 s typical 50 s 50 s 50 s maximum 100 s 100 s 100 s optical path penalty maximum 1 db 1 db 1 db dispersion maximum - 246 ps/nm - receiver reflectance maximum - - -25 db minimum optical return loss minimum - - -24 db ber floor maximum 10 -15 10 -15 10 -15 reflect into tx for <1 db degradation at the receiver maximum - - -24 db standard case temperature -5 to 75 c -5 to 75 c -5 to 75 c extended case temperature -40 to 85 c -40 to 85 c -40 to 85 c bit rate 155 mb/s 155 mb/s 155 mb/s 1. measured as fiber coupled power into a standard single mode fiber, typical connector repeatability is 1 db. lc duplex cables m anufactured by stratos are not recommended due to a potentially larger window of repeatability. 2. full spectral width measured 20 db down from the ce ntral wavelength peak under fully modulated conditions. 3. ratio of the average output power in the dominant longitudinal mode to the power in the most significant side mode in fully mo dulated conditions. 4. ratio of logic 1 output power to logic 0 output power under fully modulated conditions with a prbs 23 data pattern. 5. gr-253-core, itu-t, recommendation g.957. tested at stm1, stm4, stm16. 6. formatted oc-3 pattern with scrambled prbs payload using an agilent omniber as the optical source driving the ct2 optical rec eiver. the differential data outputs of this optical receiver are used as the electrical inputs for the ct2 transmitt er which optically drives the omniber receiver input to complete the jitter test circuit. this is a 60 second test as recommended in gr-253.
north america : 800 498-jdsu (5378) website : www.jdsu.com worldwide : +800 5378-jdsu telcordia is a registered trademark of telcordia technologies incorporated. all statements, technical information and recommendations related to the products herein are based upon information believed to be reliable or accurate. however, the accuracy or completeness thereof is not guaranteed, and no responsibility is assumed for any inaccuracies. the user assumes all risks and liability whatsoever in connection with the use of a product or its application. jdsu reserves the right to change at any time without notice the design, specificatio ns, function, fit or form of its products described herein, i ncluding withdrawal at any time of a product offered for sale herein. jdsu makes no representations that the products herein are free from any intellectual property claims of others . please contact jdsu for more information. jdsu and the jdsu logo are trademarks of jds uniphase corporation. other trademarks ar e the property of their respective holders. ?2006 jds uniphase corporation. all rights reserved. 10143021 rev. 005 08/06 ct2oc3.ds.cms.ae oc-3 sfp transceiver ordering information for more information on this or other products and their availability, please contact your local jdsu account manager or jdsu directly at 1-800-498-jdsu (5378) in north america and +800-5378-jdsu worldwide or via e-mail at customer.service@jdsu.com. sample: ct2-nl1lbtd31c1 code custom options (output power/ dispersion/channel spacing) 2 cst a n dard code hardware revision 1 hardwar e r e vi s io n 1 4 hardwar e r e vi s io n 4 1. per gr-253-core 2. customer specific options available upon request code format/itu channel/ wavelength td3 tdm 1310 n m td5 tdm 1550 n m code software feature set 1 s of t war e r e l e a se 1 3 s of t war e r e l e a se 3 code connector/ pigtail length ll c dupl ex mmul t imod e ,pla st i c r ece p t a c l e (ir1 o n ly) ppla st i c l c r ece p t a c l e code temperature range/ package a0 t o 70 c c a se te mp e ra t ur e (mm o n ly) b-5 t o 75 c c a se te mp e ra t ur e f-5 t o 85 c c a se te mp e ra t ur e k -40 t o 85 c c a se te mp e ra t ur e code rate n s onet o c -3 lr1 & lr2 da t a ra te l s onet o c -3 ir1 da t a ra te code reach 1 i1 i nte rm e dia te r e a c h, 1310 n m l1 lo n g r e a c h, 1310 n m l2 lo n g r e a c h, 1550 n m ct2-
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