AR- 51-07 GPS-Disciplined Rubidium Clock Industrial/Military Compact Low Profile AR-51-07 Features • GPS disciplined Rubidium clock • Outputs: 10MHz, 1PPS (TTL & RS-422), TOD (Have Quick), 2PPS (opt.) • Input: GPS antenna, 1PPS, TOD (Have Quick) • Frequency Accuracy : 2E-12 • 1PPS Accuracy: Typ. 20ns (RMS) • NTP Server. Time Accuracy <300μs (opt) • Holdover (no GPS): Typ. 1μs/24 hours, 5E-11/month • Opera ng Temperature: -25°C to +65°C (71°C Emergency). -40°C (opt.) • Control and monitoring : RS-232 (input & output), RS-422 (output), MIL-STD-1553 (opt.) • Ephemeris, Almanac & Ionosphere Data • Supply Voltage: 22-32 VDC per MIL-STD-704D • External ba ery input for power back-up • P(Y) code GPS (SAASM) receiver (Op on) • Full MIL-STD qualifica on for military Airborne Applica ons • Graphic User Interface (GUI) So ware for PC Application • Communica on • Telemetry test fields • Field calibra on Description The AR-51-07 unit is an industrial low profile GPS-Disciplined Rubidium Clock which offers an excellent stability and accuracy. The unit includes a Rubidium-Atomic-Standard which is phase-locked to the GPS or other external inputs. All outputs are derived from the RubidiumAtomic-Standard and maintain highly accurate me and frequency even when GPS recep on is interrupted. When disciplined to GPS the unit provides me accuracy of < 20ns RMS and frequency accuracy be er than 2E-12. The AR-51-07 includes Have Quick (ICD-GPS-060) input and output which is essen al for secure radio communica on applica ons. The unit can be remote controlled via MIL-STD-1553RT channel which is required in airborne applica ons. The unit includes internal GPS receiver (C/A code) and have op on to install P(Y) code SAASM GPS receiver (For more informa on contact factory). The AR-51-07 is designed for demanding pla orms such as airborne, helicopters, UAV’s, shipboard and ground mobile. Page 1 of 8 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014 Performance SpecificaƟons All specifica ons are at room temperature, quiescent condi ons, sea level ambient unless otherwise specified Input & Outputs 1 x 10MHz, Sine wave (8±3) dBm SMA / 50Ω 2 X 1PPS TTL/50Ω GPS Ant. 5x TOD H.Q. 5 x 1PPS ICD-GPS-060/ 50Ω (10V, 20μs) Outputs J4 4 x 1PPS RS-422 AUX: 1PPS TTL/50Ω or other signal (opt.) 1PPS PTTI 5 X TOD ICD-GPS-060 / 100KΩ TOD H.Q. TOD ICD-GPS-060 TTL/100K Ω Input 1x 1PPS TTL/50Ω CLI RS-422 J2 GPS Crypto Keys External 1 PPS ICD-GPS-060/ 50Ω or TTL/50Ω (see op on 4) CommunicaƟon J2 CLI RS-232 GPS Antenna 5x 1PPS PTTI 4x 1PPS RS-422 Overall BIT AR-51-07 CLI RS232 (input/output) for control and monitoring: se ng me/date, delay correc on for 1PPS 10ns steps, mode of opera on; disciplining to GPS/Ext 1PPS, holdover, UTC me, GPS Time, Local Time, Day Light Saving etc. (see CLI document for more informa on). Baud rate: 19,200, Control: 1, N, 8 MUX-BUS Address (opt) CLI RS422 (the Input (RXD) can not be connected simultaneously with the RS232). 22-32 VDC NTP/MUX-BUS (opt) J5 AUX OUT: 1PPS RAW J3 10MHz/50Ω J6 J1 Op on: LAN – NTP / MIL- STD-1553RT (MUX-BUS) 1PPS TTL/50Ω J7 GUI for PC is available :Time, Date, Posi on, Status, BIT (Built in test) etc. Performance Time (1PPS) Long Term Accuracy Long Term Stability Disciplined to GPS or to an External synchroniza on source 50ns RMS (typ. 20ns RMS) @ 25°C, rela ve to an external ref. Time Dri without GPS (Hold-Over) < 1μs/24hr (Typ.) Disciplined to GPS or to Ext. 1PPS < 2E-12 (24 hour average, const temp.) Free running Rubidium-Standard Short Term Stability 5E-11 / month drift in holdover ≤ 4E-11 @ 1s (≤3E-11 Typ.) Temperature Stability ±3E-10 over -25°C to +65°C (-40°C opt.) Frequency Standard (spec) Standard (typical) Improved (typical) ≤-100dBc/Hz ≤-134dBc/Hz -101dBc/Hz -137dBc/Hz -128/Hz -148/Hz 1KHz ≤-143dBc/Hz -144dBc/Hz -150/Hz 10KHz ≤-145dBc/Hz -149dBc/Hz ≤-45 dBc (-58 dBc typ.) <-75 dBc @ ± 100KHz from carrier Rb Lock < 4 min 5E-10 within < 7 min 5E-11 within < 60 min, 1E-11 within < 4hrs 2E-12 within < 24 hrs. ± 4E-11 -153/Hz 1Hz Phase Noise Frequency (10MHz) Harmonics Spurious Warm-up Retrace 10Hz 100Hz -96/Hz Power Supply Input Voltage 22-32 VDC (28 VDC Typ.) per MIL-STD-704D Power < 30 Watt @ 28 VDC ( warm-up) < 14 Wa @ 28 VDC @ 25°C (steady-state) BaƩery Back-Up External power input for ba ery back-up via the main power inlet Automa cally operated when the main power reduces to 24 VDC Page 2 of 8 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014 Performance SpecificaƟons (con nued) Industrial GPS Receiver (MIL-P (Y) code as an op on) Tracking L1 frequency (1575 MHz), C/A code 12 parallel tracking channels L1/L2 frequency P(Y) code SAASM 12 parallel tracking channels as an op on (For more informa on contact factory) PosiƟon Lat., long., alt. PosiƟon Accuracy ( Lat long ) 6m CEP (50%) w/o SA PosiƟon Accuracy ( Alt ) 11m CEP (50%) w/o SA GPS Antenna DC Voltage 5V AcquisiƟon Time Warm start 45 second, Cold start < 50 second (worst case) Dimensions & Weight Dimensions 245 mm (w) x 166 mm (h) x 56 mm (d) weight 1.5 Kg Environmental Temperature Temperature AlƟtude Opera ng:-25°C to +65°C (-40°C to +65°C Opt.) Emergency: +71°C for 60 minutes Storage: -40°C to +71°C -40°C to +65°C (+71°C for 60 minutes) 0 to 60,000 Humidity 95% non condensing 2.45gRMS as per the following profile: Random VibraƟon (Without vibraƟon absorbers. For more details on the vibraƟon absorbers opƟon – please see the Accessories chapter below) Mechanical Shock - OperaƟon MIL-STD-810C/E, Method 516.2, Proc. 1 (15g / Half sine/ 3 axis/ 6 shocks per axis( Mechanical Shock - crash X-40G, Y-15G, Z-20G, 11ms, Half Sine, Total 12 shocks Bench Handling Shock MIL-STD-810C/E, Method 516.2, Procedure V Rain MIL-STD-810E Method 506.3 procedure I Dust MIL-STD-810E Method 510.3 Salt Atmosphere MIL-STD-810E, Method 509.3, Procedure I Bonding ≤2.5 mΩ EMI / RFI MIL-STD-461B/C Part: 5 (CE01, CE03, CE07, RE02, CS01, CS02, CS06, RS02, RS03) Reliability, Maintainability, Testability MTBF > 20,000 hours @ 30°C, ARW, MIL-HBK-217F MTTR – O Level 12 min. to replace failed unit (including warm-up time) MTTR – I Level 34 min. to replace failed module (including warm-up me) BIT (Built In Test) On-line BIT – Automa c, Covers 90% of all failures Page 3 of 8 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014 Performance SpecificaƟons (con nued) Principles of Opera on The following block diagrams depict the opera on of the AR-51-07. The unit includes Rubidium Standard and accepts Input from internal GPS receiver, external 1PPS or external TOD (H.Q). All outputs are derived from the internal Rubidium Clock, which is phase locked by a digital PLL to the selected input. Thus, the Rubidium Clock - frequency and me - follows the GPS on the long term average. If GPS recep on is lost for short or long periods of me the Rubidium Clock shall maintain accurate me and frequency with no phase interrup on. Data flow & Inputs Selec on Rubidium-GPS D-PLL and Inputs Typical Performance Plots Typical me error fluctua ons when disciplined to GPS Typical me error in Holdover (without GPS) Typical Performance Plots Page 4 of 8 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014 Performance SpecificaƟons (con nued) Mechanical ICD Electrical ICD Connector I/O J1 - Supply OUT TOD TTL/100K ohm x 5 OUT 1 PPS PTTI x 5 OUT 1 PPS RS-422 x 4 OUT 1 PPS TTL/50 ohm x 1 OUT Aux RS-422 x 1 IN/OUT CLI RS-232 x 1 IN/OUT 1PPS ICD-GPS-060 x 1 IN TOD TTL/100K ohm x 1 IN MUX-Bus Address IN Overall BIT OUT GPS crypto keys IN/OUT J3 - MUXBUS MIL-STD-1553RT, Female IN/OUT J4 - 10MHz OUT Sine-wave, 8 ±3dBm, 50Ω, SMA, Female OUT J5 - 1PPS OUT TTL/50 ohm, SMA, Female OUT J6 - ANT IN L1/L2, TNC, 50Ω, Female IN J7 - AUX OUT 1PPS TTL/50 ohm (RAW), SMA, Female, OUT J2 - Signals Page 5 of 8 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014 Accessories (Op on) The tray should be use in harsh environmental where high vibra on level is applied, the absorber drama cally decrease the vibra on level, so the clock obtain lower vibra on level. The mechanical design of the tray, allows rapid connec on and disconnec on of the clock from the try, without use of any working tools. For more details – contact factory. Mechanical ICD Page 6 of 8 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014 How To Order OpƟons DescripƟons C(A) code GPS P(Y) code GPS (*) LAN channel (NTP & UDP) - - √ - AR-51-07-08 √ √ √ √ AR-51-07-09 - - AR-51-07-10 √ - - Vectron P/N AR-51-07-02 AR-51-07-04 AR-51-07-xx VibraƟon absorber Temperature Range (**) RS422 COM. (CLI) Ephemeris & Almanac data (RS422) Humidity (RH) Improved Phase Noise & ADEV - -40°C to +65°C √ √ √ √ -25°C to +65°C √ - 98% Condensing - - -40°C to +65°C √ - 95% - -25°C to +65°C - - √ √ 95% - GPS-Rb with P(Y) code SAASM GPS - For more informa on contact factory. Vectron part number: MU50015 * For other customized configuraƟon, 1553 MUX BUS protocol, and for more opƟons - please contact factory. NOTE: For the P(Y) code receiver op on, the customer need to supply the receiver. Page 7 of 8 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014 Revision History Revision Change Summary 1.0 Product Release Date October 2014 For Additional Information, Please Contact USA: Europe: Asia: Vectron Interna onal 267 Lowell Road, Suite 102 Hudson, NH 03051 Tel: 1.888.328.7661 Fax: 1.888.329.8328 Vectron Interna onal Landstrasse, D-74924 Neckarbischofsheim, Germany Tel: +49 (0) 7268.801.100 Fax: +49 (0) 7268.801.282 68 Yin Cheng Road(C), 22nd Floor One Lu Jia Zui Pudong, Shanghai 200120, China Tel: +86 21 6194 6886 Fax: +86 21 6194 6699 Disclaimer Vectron Interna onal reserves the right to make changes to the product(s) and or informa on contained herein without no ce. No liability is assumed as a result of their use or applicaon. No rights under any patent accompany the sale of any such product(s) or informa on. Page 8 of 8 Vectron Interna onal • 267 Lowell Road, Suite 102, Hudson, NH 03051 • Tel: 1-88-VECTRON-1 • h p://www.vectron.com Rev 1.0 Oct 2014