MOdel 1084A/B/C GPS Satellite-controlled clock
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TIMING AND FREQUENCY PRODUCTS The Arbiter Systems®, Inc. Model 1 084A/B/C GPS Satellite-Controlled Clock provides the most-needed GPS system clock features in an economical package. Three versions allow you to match your requirements. The Model 1 084A has four LEDs to monitor operating status. The Model 1 084B adds an LCD setup/status display and keyboard. The Model 1 084C adds a large (20 mm or 0.8 in) LED time display. In all versions, one BNC output provides modulated IRIG-B while another BNC output is jumper configurable for IRIG-B unmodulated or Programmable Pulse. Both outputs have substantial drive capability and can easily drive multiple loads wired in parallel. A third output is jumper configurable for either one pulse-per-second, IRIG-B unmodulated, or IRIG-B modified Manchester (IEEE Standard 1 344 high-precision time code). This third output may also be wired (by a simple modification) to any of the other digital signals generated inside the Model 1 084A/B/C. These signals include rates of 1 PPH, 1 PPM, 1 0 PPS, 1 00 PPS, 1 kPPS, 1 0 kPPS, 1 00 kPPS, 1 MPPS, 5 MPPS, and 1 0 MPPS; IRIG-E, IRIG-H, and IRIG-D; Programmable Pulse, or Locked to satellite. Programmable Pulse generates an output pulse every 1 second to 60000 seconds, daily at a specified time, or at a specified time of year; pulse duration is 0.01 seconds to 600 seconds. An optional fiber-optic output generates 1 PPS or IRIG-B in either unmodulated or modified Manchester format. Also, an event timer input measures time of occurrence of an applied pulse to 1 00 ns resolution. Up to 500 events may be stored. The Model 1 084A/B/C includes two Form C (SPDT) fail-safe relays, compatible with 1 29 Vdc digital fault recorder inputs. The first provides a LOCKED indication, and the second can be selected to the FAULT, 1 PPH, or Programmable Pulse functions. Twelve receiver channels are standard for best performance, especially in difficult locations. The internal backup oscillator is a digitally-compensated crystal oscillator (DCXO) accurate to 1 x 1 0-7 over temperature. Power options include 85 Vac to 264 Vac or 1 1 0 Vdc to 370 Vdc with an IEC-320 detachable cordset, 85 Vac to 250 Vac or 1 1 0 Vdc to 350 Vdc terminal strip inlet with surge withstand, or 1 0 Vdc to 60 Vdc terminal strip inlet with surge withstand. The terminal-strip versions have a surge-withstand network designed to meet ANSI/IEEE C37.90-1 and IEC801 -4 specifications. All power configurations may be retrofitted in the field. Arbiter Systems, Inc. · 1 324 Vendels Circle, Suite 1 21 · Paso Robles, CA 93446 · USA Tel: +1 .805.237.3831 · Fax: +1 .805.238.571 7 · E-mail: sales@arbiter.com · Internet: http://www.arbiter.com

TIMING AND FREQUENCY PRODUCTS Model 1 084A/B/C Specifications Receiver Ch aracteristics Timing Accuracy Specifications apply at the 1 PPS output, in the presence of Selective Availability (SA), as of date of publication. UTC/USNO ± 1 00 ns rms, 1 PPS output Typical < 40 ns rms, in Position-Hold Mode Internal Oscillator Standard DCXO, 1 x 1 0-7, unlocked Allan variance (locked and in Position-Hold Mode) 1 second 5 x 1 0-1 0 (2 x 1 0-1 0, typical) 1 day 5 x 1 0-1 3 CMOS output signals are synchronized to the 1 PPS output, ± 50 ns maximum. IRIG-B modulated, ± 1 µs maximum The leading edge of...

TIMING AND FREQUENCY PRODUCTS Model 1 084A/B/C Specifications Power Requirements Operator Display Status LEDs Keyboard Setup 2 x 20 character supertwist LCD (Models 1 084B/C only) 20 mm (0.8 in) LED; 9 digits (Model 1 084C only) Time: UTC or local Position: latitude, longitude, altitude Receiver and clock status 1 PPS (input) deviation Event time Operate (green) On Line (green) Unlocked (red) Fault (red) Eight keys (Models 1 084B/C only) Local time offset Output code select: Local/UTC Recorder output A Daylight Saving Time: On/Off/Automatic Backlight control: On/Off/Automatic Event input:...

TIMING AND FREQUENCY PRODUCTS Except as noted otherwise, only one I/O Option may be Parallel BCD Output 1 ms Resolution 1084opt06 BCD Output with Second RS-232 Port 1084opt17 Fiber-Optic Output, Type ST 820 nm 1084opt202 Four Configurable Fiber-Optic Outputs 1084opt20A COMTRADE Sample Rate Generator 1084opt23 8-Channel High-Drive IRIG-B Output 1084opt27 Power System Time, Frequency and Four Additional Outputs with Dry Network Time Protocol (NTP) / Precision Time Protocol (PTP) Server 1084opt34 Fou r Configu rable Outputs 1084opt36 Power (select only one) Terminal Power Strip, Surge...

TIMING AND FREQUENCY PRODUCTS Arbiter Systems, Inc. · 1 324 Vendels Circle, Suite 1 21 · Paso Robles, CA 93446 · USA Tel: +1 .805.237.3831 · Fax: +1 .805.238.571 7 · E-mail: sales@arbiter.com · Internet: http://www.arbiter.com