Model 1093A/B/C GPS Satellite-Controlled Clock (500 ns)

Model 1093A/B/C delivers better than 500 ns accuracy and includes the most highly sought after features in a precision time clock as standard.

With two terminal strip outputs providing unmodulated IRIG-B and 1 PPS signals, the 1093 is capable of driving multiple loads in parallel. An optional modulated IRIG-B port is available adding greater flexibility.

Like other Arbiter clock models, various options are available to add features such as NTP (Network Time Protocol) & IEEE1588 PTPv2 support, four additional configurable outputs, high drive IRIG-B outputs, power system time, frequency, and Phase Monitor functions, one Form C (SPDT) fail-safe, LOCKED relay that is compatible with 129 Vdc digital fault recorder inputs; plus many more.

  • Accuracy< ±500 ns typical
  • Unmodulated IRIG-B and 1 PPS included, modulated IRIG-B optional
  • Internal NTP & IEEE1588 (PTPv2) server, dual Ethernet ports (optional)
  • High Drive IRIG-B outputs (optional)
  • One Form C (SPDT) fail-safe locked relay (optional)
  • Power System Time, Frequency and Phase Monitor (optional)
  • 1093A supports four LEDs for monitoring operating status.
  • 1093B adds to the LEDs an LCD display and keypad, providing easy access to setup and system status information.
  • 1093C includes both the operating status LEDs, the LCD display and keypad, and includes a large LED time display.

Produktinformation

Produkt Specifikation

Receiver Characteristics

Timing Accuracy

Accuracy NoteSpecifications apply at the 1 PPS output, in the presence of Selective Availability (SA), as of date of publication
Accuracy UTC/USNO± 500 ns peak

Position Accuracy

10 meters, rms, 90 % confidence

Satellite Tracking

Twelve (12) channel, C/A code (1575.42 MHz). Receiver simultaneously tracks up to twelve satellites. Results from all tracked satellites are averaged in Position-Hold Mode or, with Position-Hold Mode off, using least-squares estimation.

Acquisition

  • 150 seconds typical, cold start
  • 15 minutes, 90 % confidence, cold start
  • 40 seconds, with almanac less than 1 month old
  • 15 seconds, with ephemeris less than 4 hours old
  • The GPS Data Backup Battery is now included in the Model 1093s. This feature improves acquisition time to as little as 15 seconds after a brief power loss by supplying constant power to the real-time clock and RAM in the GPS receiver module.

I/O Configuration

Output Connectors

Two standard: one IRIG-B Unmodulated and one 1 PPS; Type: bus driver, 5 V CMOS; 10 ohms source impedance; ± 75 mA drive capability; pluggable terminal strip.
Open-drain FET drivers (400 V, 220 mA, 1 W power dissipation) can also be fitted; contact tech support.

Event Inputs

One event timer channel with 1 µs resolution is standard. This function may be driven by the start bit of a received character on the serial port, or (by internal connection) an external 5 V CMOS/TTL signal at one of the terminal strip connectors.

Programmable Pulse Output

One programmable output pulse (by a jumper connection) that may be output on a terminal strip connector or the AUX OUT pin on either RS-232 Port.
Four modes:

  • Every 1 second to 60,000 seconds, starts top of the minute
  • Hourly at a specified offset
  • Daily at a specified time of day
  • One shot at a specified time of year

Pulse duration is programmable from 0.01 seconds to 600 seconds, except in one-shot mode, where the output is Low prior to the specified time and High thereafter.

Interface

Operator

Display
  • Status LEDs (Models 1093B/C)
  • 2 character x 20 character supertwist LCD (Model 1093B/C)
  • 14 mm (0.56 in) LED; 9 digits (Model 1093C)
Functions
  • Time: UTC or local
  • Position: latitude, longitude, altitude
  • Receiver and clock status
  • 1 PPS (input) deviation
  • Event time
Status LEDs
  • Operate (green)
  • Unlocked (red)
KeyboardEight keys; select display functions or setup menus (Model 1093B/C)
Setup
  • Local time offset
  • Output code select: Local/UTC
  • Daylight Saving Time (Set Summer Time): Off/On/Auto USA/Auto EUR/Auto CUS
  • Backlight control: On/Off/Auto
  • Event input: Event/1 PPS
  • Programmable Pulse setup
  • Antenna delay
  • Out of lock time: 1 minute to 99 minutes, Off, or Zero Delay
  • Auto-Survey: On/Off, Survey duration
  • Position Hold: On/Off, Position Auto/Manual
  • Option Configuration and Setup
  • Serial port: RS-232

System

RS-2321200 baud to 19,200 baud; 7 or 8 data bits; 1 or 2 stop bits; even/odd/no parity

Second RS-232 port available (1093opt19)
Connector: Male 9-pin D-sub (TXD, RXD)

RS-422/485Optional driver can also be fitted (1093opt94)
Broadcast modes
  • Standard ASCII (IRIG-J)
  • Extended ASCII
  • ASCII with Time Quality
  • ASCII with Time Quality and Year
  • Vorne large-display time
  • Status/Alarm
  • Event data
ConnectorMale 9-pin D-sub (TXD, RXD, AUX IN, AUX OUT)

AUX OUT can provide programmable pulse function at RS-232 levels

Power Requirements

Standard

Voltage(Option 07) 85 Vac to 264 Vac, 47 Hz to 440 Hz, 20 VA maximum or 110 Vdc to 370 Vdc, 15 W maximum
Inlet(Option 07) IEC-320 with fuse and mating cordset. Specify option P01 – P10

Available cordset plug style and specifications are described in the Options and Accessories section.

General

Physical

Size1 RU rack mount or tabletop, 260 mm deep FMS, Rack mounts included.
508 mm x 381 mm x 203 mm (20 in x 15 in x 8 in), shipping
Weight2 kg (4.5 lbs), net
5.5 kg (12 lbs), shipping
AntennaCable Connection: F-type
Size: 80 mm hex (across flats) x 84 mm tall (3.2 in x 3.3 in), including connector
Weight: 170 g (6 oz)
Antenna CableType: RG-6, 15 m (50 ft) provided
Weight: 0.69 kg (1.52 lbs) per 15 m
Antenna Mounting0.75 in pipe (1 in – 14 marine) thread

Environmental

TemperatureOperating: 0 °C to + 50 °C (- 20 °C to + 70 °C typical)
Nonoperating: – 40 °C to + 75 °C
HumidityNoncondensing
EMCRadiated susceptibility: passes walkie-talkie test.

Conducted emissions: power supply complies with FCC 20780, Class A and VDE 0871/6.78 Class A.

Surge withstand capability (SWC), power inlet: designed to meet ANSI/IEEE C37.90-1 and IEC 801-4

Certificates and Approvals

CE mark/label and certificate:

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