| The Datasheet Archive - 100 Million Datasheets from 7500 Manufacturers. |
SY10 Date: October 2001 INTRODUCTION SY10 accurate time
Top Searches for this datasheetSYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 SY10 Date: October 2001 INTRODUCTION SY10 accurate time frequency source that been designed subsystem level module. module designed work within ATM, SONET, SDH, wireless systems where synchronization vital. SY10 excellent synchronization solution timing, with jitter wander compliance specified within ITU-T Recommendations G.812/G.813 Bellcore GR-1244-CORE. SY10 enhanced version SY01 designed Stratum Stratum applications, also holds certain features that make useful SONET Minimum Clock (SMC) other kinds system clocks. FEATURES synchronization solution timing, jitter wander concerns single module. Complies with ITU-T Recommendations G.812/813 Bellcore GR-1244-CORE Stratum Stratum applications. Supports modes operation: Locked, Holdover Free-run. Accepts reference inputs from independent sources; 8KHz.~77.76MHz Provides three independent outputs user selected 77.76MHz) 8KHz. Loop filtering utilizing specific software application digital signal processor (DSP). Continuously monitors evaluate input reference signals. Phase build-out output clock. Creates history buffer Holdover mode operation. Alarm status signals messages. Host interface configuring remote monitoring. Supports Master/Slave configuration SY10 with minimum phase error between clocks. Provides "hit-less" switching during switching between clocks. compatible with pins SY01 module. Small dimensions 1.82 1.82 inch.(with Metal cover); APPLICATION SY10, Synchronous Equipment Clock (SEC), fulfills clock regeneration function STRATUM equipment for: ATM, SDH, PDH, SONET networks. designed network system manufacturers such Access Switches, Core Switches, Cross Connects, Digital Multiplexers-Exchangers, SDH/SONET equipment. unit also suitable PCS, WLL, Wireless Base Stations. Wherever Timing unit with high performance specifications required, SY10 embedded within network system provide necessary frequencies interfaces. RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 Alarms Ex.Ref Ex.Ref Ex.Ref Ex.Ref Ex.Ref Ex.Ref OCXO MUX, FPD, Counters Logic (RAM, FLASH) Output Synthesizer Control Inputs JTAG Figure functional block diagram SY10. DESCRIPTION SY10 synchronization module Digital (DPLL), which utilizes application specific software digital signal processor (DSP). complemented fast hardware logic (FPGA) where multiplexers, counters, dividers, phase detectors, output frequency converters other control logic circuits completely implemented. functional block diagram with maximum configuration shown figure module three phase lock loop primary PLL, secondary utility PLL. primary utilizes Direct Digital Synthesis (DDS) technique combined with high stability OCXO order provide accurate fast DPLL response eliminates requirement OCXO with high pullability. primary loop bandwidth loop that filters major part wander jitter input. output primary connected secondary synthesizer that also DPLL with wider loop bandwidth. secondary loop also another input that comes from pin. Depending master-slave mode, secondary loop utilizes either inputs. output secondary connected utility that analog phase lock loop. outputs secondary utility provides three independent output signals. serial communication interface provides flow messages between module host processor. JTAG interface provides easy access future software upgrade re-programming without removing module from system. SY10 software provides several features such switching between references inputs basis monitoring estimation input signals internal state diagram; real time calculation filtering algorithm jitter wander according approved standards; alarm, status messaging functions using output pins serial communication port. other configurations, please contact Raltron. module operates following three timing modes: Free-run this mode, unit unlocked either inputs. accuracy output frequencies this mode ±4.6ppm. Free-run mode typically used when master clock source required, valid history data Holdover mode, immediately following system power-up before network synchronization achieved. Freeth RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 Mode, SY10 provides timing synchronization signals that based accuracy on-board oscillators only, synchronized reference signals. Holdover this mode, module lost reference inputs utilizing stored timing data, called history, control output frequency. Holdover Mode typically used while network synchronization temporarily disrupted. Holdover Mode, SY10 provides timing, based data from history buffer, while unlocked external reference signal. history data determined while device locked external reference signal. stability output signal holdover mode depends primarily stability on-board oscillator environment effects where clock mounted. SY10 uses OCXO on-board oscillator other types oscillators available. Locked Reference this mode, output module phase locked input references. output frequency tracks selected input reference. "Locked Reference Modes" typically used when slave clock source synchronized network. these modes, SY10 provides timing signals, which synchronized, references inputs (REF1 REF6). input reference signals have variety nominal frequencies, which typically specified user. When modes selected unit goes through reference evaluation, then frequency acquisition, finally phase locking. Local Reference Oscillator Depending type clock, local reference oscillator selected. example: Stratum type clock, local oscillator high stability SC-cut OCXO that meets this standard requirements frequency drift jitter noise. Input References SY10 module accepts input references REF1 REF6. users specify frequencies within range 77.76 MHz. input reference signals HCMOS/TTL levels with timing characteristic accordance with Bellcore GR-1244-core 3.2.1.R3-1 equivalent standards. Please note that user must specify input frequencies time order. Monitoring Evaluation Input References Using advanced algorithm input references continuously monitored evaluated module. There three techniques used algorithm each reference, presence reference, frequency offset during time when unit phase locked reference, frequency offset when unit phase locked reference. SY10 rejects reference signals whose frequency accuracy offset more than PPM. given event that requires switching operation mode, timing module unit performs reference evaluation test target reference. Since such evaluation continuous process, switching takes very short time (typically less then second). Providing successful evaluation, unit switches frequency phase locking mode. other hand, reference qualified unit switches holdover mode. Filtering DPLL SY10 dynamically changes loop bandwidth according status DPLL. primary there five stages that DPLL goes through before phase lock mode achieved. first stage frequency acquisition that takes place until frequency becomes equal reference. second stage phase acquisition stage that takes place until phase reference acquired. other stages tracking stages (hint: DPLL locked tracks phase reference with very loop bandwidth). This method three tracking stages ensures minimum locking time minimum phase jumps shifts during acquisition transition. also provides phase build-out during switching rearrangement. secondary operates similarly primary with exception wider bandwidth (hint: only three stages) first frequency acquisition, second phase acquisition third tracking mode. Please detail state diagram. RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 History Buffer HOLDOVER mode Frequency timing data continuously collected history buffer during time when unit locked input references. history buffer actually circular buffer memory that keeps valid data HOLDOVER mode during last seconds operation. When SY10 enters HOLDOVER mode data from buffer validated processed. history buffer cleared writing HLRST CFG2 register. Output Signals SY10 module provides three output signals OUT, OUT1 OUT2. outputs generated internal oscillators VCXO scaled output frequency converters. VCXO oscillators used module providing independent frequency types third (OPT OUT2) derived from them. performance module significantly depends output oscillator special care taken define their specifications. used VCXO high quality crystal oscillators with very output jitter. frequency oscillator specified according network application where SY10 will used. frequency converters divide signal from oscillator specified frequencies. Indications SY10 provides detailed monitoring indication operation unit. types monitoring status indicating provided: Visual indication: Using board color mounted LED's that indicate operating mode SY10. indicators mainly placed system troubleshooting, testing. Electronic indications: Using digital outputs that report status alarms from SY10. These alarms mainly used communication between module network equipment. internal indicators are: Holdover: super light LED, when module holdover mode. REF1: green LED, when module locked reference REF2: green LED, when module locked reference REF3: green LED, when module locked reference REF4: green LED, when module locked reference REF5: green LED, when module locked reference REF6: green LED, when module locked reference FREERUN: orange LED, when unit free running mode. UNLOCK: LED, when module locked selected reference signal. ALARM: LED, when there alarm module. Control Several controls pins available user control operation SY10. three external inputs CNT1, CNT2 CNT3 provide feature change state operation. Below, truth table shows behavior SY10 module according control inputs states. CNT3 CNT2 CNT1 MODE OPERATION Free-run Locked REF1 Locked REF2 Holdover Locked REF3 Locked REF4 RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 Locked REF5 Locked REF6 state operation changed also using serial communication port, please below. Master-Slave Operation systems where clock redundancy required possible connect SY10 such connection shown figure below. module pins dedicated this feature control input selects module will operate master (logic high) slave system. input signal that comes from another clock module. system always clock "one" operates master second slave clock. When operating slave output SY10 also tracks master provides minimum phase difference between clocks. This very useful makes easier "hitless" switching references. (Pin SY10 (Pin (Pin SY10 (Pin Figure Master Slave connection SY10. RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 SY10 State Machine state machine SY10 module controlled using interfaces: three external control pins CNT1, CNT2 CNT3. setting bits (CON0, CON1, CON2 CON3) CFG1 register using serial peripheral interface (SPI). After reset module three external control pins control function user change setting register CFG1. setting module ignores states control pins bits CFG1 register state engine control. figure below shown simplified stated diagram SY10 module. FREE FREQ. PHASE LOCKING REFERENCE SWITCHING HOLDOVER Figure state diagram (FREERUN) path runs until control signals (CNT1,2,3 pins CON0,1,2,3 bits CFG1 register) zero there valid history available acquisition buffer holdover. (FREERUN_ REFERENCE_SWITCHING) path runs when there change control signals. (REFERENCE_SWITCHING_FREERUN) path runs when control signals were changed zero free-run mode selected. (REFERENCE_SWITCHING) path runs until appropriate reference selected. unit Auto Switching mode (bit AUTOEN CFG2 register module will switch following conditions: reference that selected control signals, selected reference available will switch based Priority Table (registers PR4). references available will holdover (path unit Manual Switching mode (bit AUTOEN CFG2 register module will switch following conditions: reference that selected control signals, RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 selected reference available will holdover (path (FREQ&PHASE_LOCKING_FREERUN) path runs when control signals were changed zero free-run mode selected. (HOLDOVER_FREERUN) path runs when control signal were changed zero free-run mode selected there valid history available acquisition buffer holdover. path runs when reference switching successfully finished reference qualified changes control signals. (REFERENCE_SWITCHING_HOLDOVER) path runs following conditions: control signals were changed (0011) holdover mode selected. module Auto Switching mode (bit AUTOEN CFG2 register module will switch holdover none reference available. module Manual Switching mode (bit AUTOEN CFG2 register selected reference qualified reference lost during process evaluation. path runs following conditions: another reference selected changing control signals. module Auto Switching mode (bit AUTOEN CFG2 register module will switch reference switching least references available. unit operate Revertive mode (bit REVEN CFG2 register previously lost reference back module will switch reuse same reference. (HOLDOVER_ REFERENCE_SWITCHING) path runs following conditions: current selected reference reacquired other reference selected changing control signals. unit operate Revertive mode (bit REVEN CFG2 register previously lost reference back module will switch reuse same reference. (FREQ&PHASE_LOCKING) path runs until frequency acquisition phase locking progress with changes control pins. module goes through intermediate states order accomplish phase tracking. There three basic intermediate steps that include frequency acquiring, phase acquisition tracking. Tracking have additional steps depending bandwidth achieved. (HOLDOVER) path runs until holdover mode progress with changes control signals. (FREQ&PHASE_LOCKING_ HOLDOVER) path runs following conditions: used reference lost detected bad, control signals were changed (0011) holdover mode selected. (FREERUN_HOLDOVER) path runs only control signals were changed (0011) valid history buffer holdover operation available holdover mode selected. RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 Serial Communication module configured, controlled monitored using board serial communication port provided SY10. There three pins available this features SCLK, DOUT. DOUT ports used transfer command data module. SCLK input used clock data transfer module. SY10 operates only slave device transfer data command should initiated micro-controller. micro-controller read write configuration registers read only from status registers mapped internally into SY10. Optionally interface implemented SCLK DOUT SY10 Figure serial communication Communication Protocol interface synchronous serial interface, master must provide clock signal initiate communication cycles. There read write cycles each communication cycle that consists clocks. Data latched every rising edge clock input from most significant bit. Write data cycle master sends module bytes. First byte always command byte. second byte data byte contains information write. Command byte data format: 7(MSB) 0(LSB) A5.A0 Module register address please table Read Write bit. used. Data byte format: 7(MSB) 0(LSB) D7.D0 Content written register addressed A5:A0 Read data cycle master sends module command byte receives from module information byte (see 1.2). Command byte data format: 7(MSB) 0(LSB) RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 A5.A0 Module register address please table Read Write bit. Data byte format: 7(MSB) 0(LSB) D7-D0 Content read from module addressed A5:A0 Error handling basic error handling provided hardware level. write data cycle second byte have clocked module within second from cycle start. second received within that period, receiving buffer module cleared first byte failed cycle ignored. Timing diagrams: Please below timing diagram write read cycles. RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 Memory Mapped Registers There twenty-four 8-bit registers accessible through serial port: registers write read data registers only read data from module. table memory registers their purpose. Address Read Write Name Format CFG3 CFG2 CFG1 CFG0 Description RFS1 RFH2 RFH3 RFH4 RFH5 RFH6 RFH7 RFH8 RST1 RST2 PSP1 PSP2 PMAX PMIN CFG1 CFG2 BW11 BW12 4-bit priority references 4-bit priority references 4-bit priority references 4-bit priority references Reference frequency shift Reference frequency shift Reference frequency shift Reference frequency shift Reference frequency shift Reference frequency shift Reference frequency shift Reference frequency shift References status References status Status Primary Status Secondary utility Maximum frequency pull Minimum frequency pull Configuration Configuration Frequency acquisition PLL1 Bandwidth PLL1 Bandwidth PLL1 Frequency acquisition(F) Bandwidth track PLL2 Table Memory registers. Reference Priority Registers (PR1 PR4) address 00-03h There four registers that specify priority during switching. Every reference 4-bit priority references defined register. priority means that module event loosing reference will lock valid reference with higher priority available AUTOEN register CFG2 one. initial priority module overridden customer. highest priority 1000b, lowest priority 0000b. R10-R13 defines reference priority R20-R23 defines reference priority R30-R33 defines reference priority R40-R43 defines reference priority R50-R53 defines reference priority R60-R63 defines reference priority R70-R73 defines reference priority available) R80-R83 defines reference priority available) Frequency Shift Registers (RFS1-RFS8) address 04-0Bh. registers indicate references nominal frequency parts million (ppm). resolution 0.5ppm. range ±63ppm. frequency above below ±63ppm range, shown respectively proper status indicated Reference Status Registers format compliment example content RFS3 register 11000111 then third reference -28.5ppm 7(MSB) SIGN Reference Status Registers (RST1-RST2) address 0C-0Dh 0(LSB) RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 There reference status registers that hold information about status references. Each reference 2-bit status each register keep statuses four references. possible statuses are: Binary number Name status Present Present range Description Reference present frequency range Reference present evaluated Reference present Reference present frequency range S10-S11 defines status reference S20-S21 defines status reference S30-S21 defines status reference S40-S41 defines status reference S50-S51 defines status reference S60-S61 defines status reference S70-S71 defines status reference available) S80-S81 defines status reference available) Status Registers (PSP1-PSP2) address 0E-0Fh Register PSP1 indicates status Primary PLL. register least significant bits indicate status most significant bits indicate reference loop. possible statuses Primary shown PSP1: PS3-PS0 Status description 0000 locked. This status represents major error. 0001 Frequency Acquisition 0010 Phase Acquisition 0011 Tracking Bandwidth 0100 Tracking Bandwidth (SP1 only) 0101 Tracking Bandwidth (SP1 only) 0110 Tracking Bandwidth (SP1 only) 0111 Phase Build-out 1000 Holdover 1001 Free possible reference bits are: PS7-PS4 0000 0001 0010 0011 0100 0101 0110 0111 1000 Status description reference use(module Free Holdover) Reference Reference Reference Reference Reference Reference Reference Reference Register PSP2 indicates status Secondary PLL. register least significant bits indicate status Secondary most significant bits indicate status utility available. RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 SS3-SS0 0000 0001 0010 0011 0100 0101 0110 0111 possible utility status bit. US7-US4 0000 0001 Status description locked Locked Status description locked. This status represents major error. Frequency Acquisition operating master clock Phase Acquisition operating master clock Tracking Bandwidth operating master clock Frequency Acquisition operating slave clock Phase Acquisition using operating slave clock Tracking Bandwidth using operating slave clock Phase Build-out Frequency Pull Range Registers (PMAX PMIN) address 10-11h These registers specify window pull-in range module. PMAX register specifies maximum frequency that module locked PMIN register specifies minimum frequency module locked data format compliment example content PMAX register 00011110 PMIN 11110001 then pull range ±15ppm: 7(MSB) SIGN 0(LSB) Configuration Registers (CFG1 CFG2) address 12-13h Register CFG1 used clock mode operation. There bits modes operation: CFG3 CFG2 CFG1 CFG0 Mode operation Free-run Lock Reference Lock Reference Holdover Lock Reference Lock Reference Lock Reference Lock Reference Lock Reference Lock Reference Other combinations supported ignored. Bits CFG1 reserved future ignored this set. Register CFG2 used customer control behavior module application needs. 7(MSB) RESET HLRST REVEN 0(LSB) AUTOEN AUTOEN when logic high, enabling automatic switching other reference event loosing current reference according priority registers PR1-PR4. When logic low, will switch other reference. RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 REVEN when high, will enable revertive operation. HLRST when high, will erase previous operation history holdover. RESET when high, will initiate internal reset module. module specification more details about Control Registers. Frequency Acquisition Primary (FA1) address register determines tracking bandwidth loop TBD. Bandwidth registers PLL1 (BW11, BW12) address 15-16h BW11 register determines tracking bandwidth loop -TBD. Frequency Acquisition Bandwidth Track PLL2 (FB2) address register determines bandwidth Secondary frequency acquisition tracking modes: TBD. 18-Pins Configuration SY10 compatible with SY01 configured operate like this module. this configuration SY10 accept references REF1 REF2 generate independent output frequencies. control status signals remain same SY01. This feature useful users that want replace module existing design increase accuracy whole system. this configuration there other features such reference inputs, three outputs, host port serial communication, Master/Slave operation etc. RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 Standard Timing Application Systems typical timing application telecommunication equipment shown figure below. system consists Clock Cards (CC1 CC1) several Line Cards Clock Cards clock module SY10 generate redundant signal references whole Line Cards high frequency synchronizer module SY05 high frequency reference signals communication (for e.g. transceivers). Clock Cards connected such provide Master/Slave operation clocks. local processors configure monitor SY10 module serial port SPI. reference signals optionally four status signals from each Clock Card (STATUS STATUS distributed Line Cards. particular application timing application that best fits please contact Raltron. SY05 STATUS SERIAL PORT SY10 (10) (25) SY05 (25) SERIAL PORT SY10 (10) STATUS SY05 Figure typical timing application. RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 SPECIFICATIONS Mechanical Power Supply Warm Current Supply Steady State Current Supply Operating Temperature Humidity Internal Oscillators Number Inputs Input reference frequency Signal Level Time Reference characteristics Number Outputs Output Output Output Signal Level Jitter Tolerance Phase Transient Tolerance Wander Generation Wander Tolerance Jitter Generation Transfer Wander Transfer Frequency Output Performance Free accuracy Holdover frequency stability Initial Offset Temperature Drift Phase Build-Out DPLL bandwidth Lock Time Lock accuracy Stratum ±4.6ppm ±1x10-8 hours ±1x10-9 ±8x10-9 ±1x10-9 0.001Hz <700sec ±1x10-11 Bellcore: GR-1244-core ITU-T: G.812 Bellcore: GR-1244-core ITU-T: G.812 adjustable 20Hz GR-1244-core GR-1244-core ITU-T: G.812 Bellcore: GR-1244-core ITU-T: G.812 Bellcore: GR-1244-core ITU-T: G.812 1.82" 1.82" 0.70" 1.8" 1.8" 0.60" 5VDC 900mA 300mA max. -20°C 70°C non-condensing OCXO TCXO 8kHz 77.76MHz HCMOS/TTL Compatible 8kHz 77.76MHz 8kHz 77.76MHz 8kHz HCMOS Metal Module 3.3V available with Stratum option Varies from different oscillator used Other ranges available request SC-cut S3E/ AT-cut User selectable Bellcore: GR-1244-core 3.2.1.R3-1 User define User define 3.3V levels tolerant Bellcore: GR-1244-core ITU-T: G.813 Bellcore: GR-1244-core Bellcore: GR-1244-core ITU-T: G.812 Bellcore: GR-1244-core ITU-T: G.812 Bellcore: GR-1244-core ITU-T: G.812 Bellcore: GR-1244-core ITU-T: G.812 General Specifications Input Signals Output Signal Signal Quality Performance RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 ASSIGNMENT OUT1 SCLK DOUT HOLDOVER FREERUN ALARM OPTOUT2 UNLOCK Figure Bottom view RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 9,18,22,26,30 Name HOLDOVER FREERUN ALARM OUT2 UNLOCK DOUT SCLK OUT1 Description Holdover Signal output high when unit holdover mode Reference Signal output high when unit using reference Reference Signal output high when unit using reference Reference Signal output high when unit using reference Reference Signal output high when unit using reference Reference Signal output high when unit using reference Free-run Signal output high when unit free mode Reference Signal output high when unit using reference Master/Slave Synchronizing output connected slave module SEC-IN Alarm signal output high when there alarm module. Optional Output secondary output synchronized signal Control Input external input selecting mode unit table. Control Input external input selecting mode unit table. Control Input external input selecting mode unit table. Master/Slave Selection Input select master slave master/ slave operation clocks. Unlocked Signal output high when unit locked references Ground Positive Voltage Supply Serial Data Output serial communication interface data output Synchronized Output output synchronized signal Serial Clock Input serial communication interface clock input Serial Data Input/ serial communication interface data input Optional Output secondary output synchronized signal,. Input input from second clock module master/slave operation clocks. External Reference Input input signal from reference External Reference Input input signal from reference External Reference Input input signal from reference External Reference Input input signal from reference External Reference Input input signal from reference External Reference Input input signal from reference RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com SYNCHRONOUS EQUIPMENT STRATUM 3/3E CLOCK UNIT SY10 MECHANICAL DIMENSIONS 1.82 (46.23 SQ.) .440 (11.18) .085 (2.16) 1.60 (40.64) MARKING AREA 1.700 (43.18) .100 (2.54) .065 (1.65) .076 (1.93) PLCS) .910 .200 (5.08) .210 (4.57) .100 (2.54) 1.400 ±.005 (35.56 ±.127) Figure mechanical dimensions. Figure shows mechanical dimension SY10 module. module supplied different types packaging: Metal Module without packaging label module shows part number, factory name, week year production. Without metal cover maximum height reaches 0.60". RALTRON ELECTRONICS CORP. 10651 N.W.19 Florida 33172 U.S.A. Tel: 593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com Internet: http://www.raltron.com .071 (1.82) NOTES: UNLESS OTHERWISE SPECIFIED, TOLERANCES ARE: ±.005 (.127 mm). .910 (23.11) .030 (0.76) .060 PLCS) (1.52) .630 (16.00) Other recent searchesSTP3NB80 - STP3NB80 STP3NB80 Datasheet STP3NB80FP - STP3NB80FP STP3NB80FP Datasheet STP11NM80 - STP11NM80 STP11NM80 Datasheet STB11NM80 - STB11NM80 STB11NM80 Datasheet STF11NM80 - STF11NM80 STF11NM80 Datasheet STW11NM80 - STW11NM80 STW11NM80 Datasheet RN3100 - RN3100 RN3100 Datasheet 4100 - 4100 4100 Datasheet MT8885 - MT8885 MT8885 Datasheet MC68HC05C4AD - MC68HC05C4AD MC68HC05C4AD Datasheet MC68HC05C8 - MC68HC05C8 MC68HC05C8 Datasheet MC68HC805C4 - MC68HC805C4 MC68HC805C4 Datasheet MC68HCL05C4 - MC68HCL05C4 MC68HCL05C4 Datasheet MC68HCL05C8 - MC68HCL05C8 MC68HCL05C8 Datasheet MC68HSC05C4 - MC68HSC05C4 MC68HSC05C4 Datasheet MC68HSC05C8 - MC68HSC05C8 MC68HSC05C8 Datasheet IDT5T9050 - IDT5T9050 IDT5T9050 Datasheet ICM7226A - ICM7226A ICM7226A Datasheet ICM7226B - ICM7226B ICM7226B Datasheet CED-PC104-120-B-N - CED-PC104-120-B-N CED-PC104-120-B-N Datasheet
Privacy Policy | Disclaimer |