Model 1092A/B/C GPS Satellite-Controlled Clock (500 ns)

Value oriented tabletop GPS precision timing source based on Model 1093, designed for a broad range of applications

Model 1092A/B/C/1093A/B/C User Manual
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Model 1092A/B/C/1093A/B/C User Manual Espanol
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Model 1092A/B/C Data Sheet
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Need value and performance in a desktop model? This precision time clock model brings economy and flexibility to environments that don't need or use a rack mount system.

With two terminal strip outputs providing unmodulated IRIG-B and 1 PPS signals, the 1092A/B/C is capable of driving multiple loads in parallel.

Like other Arbiter clock models, various options are available to extend the functionality of the base model. Features supported include a second RS-232 port, an Out-of-Lock Relay Form C SPDT, an IRIG-B Modulated Output, and the reconfiguring of 1 PPS and IRIG-B Output to Programmable Pulse. The 1PPS Output may also be reconfigured to be an Event Input.

Adding value, each Model 1092A/B/C includes a Limited Lifetime Warranty, a wall mount power supply, a GPS Antenna with a 15 meter antenna cable, and an operations manual.

Avoid the extra charges other company's tack onto their clocks. Arbiter's precision timing products, including the 1092A/B/C, include the GPS antenna and cable, a wall mount power supply, and an operations manual, all backed by a Limited Lifetime Warranty.

Model 1092A/B/C is available with three front panel configurations. See photos and Key Features tab for more information.

Key Features
Specs
Options
Accessories
Software
Firmware
Related Resources

Accuracy < ±500 ns
Desktop version (optional rack mount kit is available)
Unmodulated IRIG-B and 1 PPS included, modulated IRIG-B optional
Multiple interface versions

Versions A/B/C offer various interface options (see photos):

1092A supports four LEDs for monitoring operating status.
1092B adds to the LEDs an LCD display and keypad, providing easy access to setup and system status information.
1092C adds to the LEDs a large LED time display.

Receiver Characteristics

Timing Accuracy

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

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 included in all Model 1082s. This feature improves acquisition time 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 factory.

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 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 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 1092A/B/C) 2 x 20 character supertwist LCD (Model 1092B) 14 mm (0.56 in.) LED; 9 digits (Model 1092C)
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)
Keyboard	Eight keys; select display functions or setup menus (Model 1092B)
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 to 99 minute(s), 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-232	1200 to 19,200 baud; 7 or 8 data bits; 1 or 2 stop bits; even/odd/no parity Second RS-232 port available (1092opt19) Connector: Male 9-pin D-sub (TXD, RXD)
RS-422/485	Optional driver can also be fitted (1092opt94)
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
Connector	Male 9-pin D-sub (TXD, RXD, AUX IN, AUX OUT) AUX OUT can provide programmable pulse function at RS-232 levels

Power Requirements

Standard

Wall mount plug-in transformer: 9 Vdc/500 mA, 120 Vrms, 60 Hz UL/CSA; Contact factory for other voltages (input accepts 9 to 15 Vdc)

General

Physical

Size	43 H x 218 W x 257 mm deep, 1 RU with Rack Mount kit, AS0044500. 508 x 381 x 203 mm (20 x 15 x 8 in.), shipping
Weight	1.4 kg (3 lbs), net 5.5 kg (12 lbs), shipping
Antenna	Cable Connection: F-type Mounting: 0.75 in. pipe (1 in. - 14 marine) thread Size: 77.5 dia. x 66.2 mm (3.05 x 2.61 in.) Weight: 170 grams (6.0 oz)
Antenna Cable	Type: RG-6, 15 m (50 ft) provided Weight: 0.69 kg (1.52 lbs) per 15 m

Environmental

Temperature	Operating: 0 °C to +50 °C (-20 °C to +70 °C typical) Nonoperating: -40 °C to +75 °C
Humidity	Noncondensing
EMC	Radiated susceptibility: passes walkie-talkie test.

Certificates and Approvals

CE mark/label and certificate

Except as noted otherwise, only one I/O Option may be installed. Available options are listed below and described in the Options and AccessoriesOptions and Accessories section.

I/O
1092opt19 ¹	Second RS-232 Port
1092opt92	IRIG-B Modulated Output
1092opt93 ¹	Out-of-lock Relay 1 Form C SPDT
1092opt94 ²	RS-422/485 Driver
1092opt96	1 PPS Output Reconfigured to Programmable Pulse
1092opt97	IRIG-B Output Reconfigured to Programmable Pulse
1092opt98	1 PPS Output Reconfigured to Event Input
General
1092Bopt01	LCD Backlight (1092B)

¹ May be ordered independently from other I/O Options
² Replaces 1092opt19

Included
AS0035400	Operation Manual (1092/1093)
AS0083100	Adhesive Backed Feet (4)
AS0087800	Arbiter Universal GPS Antenna
CA0021315	15 m (50 ft) RG-6 Antenna Cable
P01W-P10W	Wall Mount Power Supply with Country Specific Plugs
Available
AP0008900	BNC (Female) Breakout to 100mm Wires
AP0009000 ¹	Power Supply: 100-240 Vac, 50-60 Hz; 9 Vdc, 1 A
AP0013400	GPS Splitter, F-Type, 950-2150 MHz, One Port Pass DC
AS0044500	Rack Mount Kit (1092)
AS0044600	GPS Antenna Mounting Kit
AS0044700 ²	21 dB In-Line Pre-amplifier
AS0044800	RG-11 Crimp Tool + 25 F-type Connectors
AS0048900	Antenna Grounding Block Kit
AS0049000	GPS Surge Protector Kit
AS0062000	High Interference GPS Antenna and Mounting Adapter Kit
CA0021302	2 m (6 ft) RG-6 Antenna Cable
CA0021306	6 m (20 ft) RG-6 Antenna Cable
CA0021330	30 m (100 ft) RG-6 Antenna Cable
CA0021345	45 m (150 ft) RG-6 Antenna Cable
CA0021360	60 m (200 ft) RG-6 Antenna Cable
CA0021375	75 m (250 ft) RG-6 Antenna Cable
CN0027700	F-type, RG-6 Antenna Cable Crimp-on Connector
TF0006000	F-type, RG-11 Antenna Cable Crimp Tool
TF0006400	F-type, RG-6 Antenna Cable Crimp Tool
TF0013200	Antenna Cable Stripping Tool, RG-6
TF0013300	Antenna Cable Stripping Tool, RG-11
WC0004900	300 m (1000 ft) Roll RG-11 Cable

¹ Used in conjunction with P01 - P10
² Used for cable lengths greater than 75m (250ft)

Click to Download Latest Version of Software
Arbiter Time Service_01Jan2010_1500	PC Clock Synchronization Service for WIN NT/2000/XP.
Tera Term_01Jan2010_23	This is a very good HyperTerminal replacement. Able to capture data from Models 930A and 931A. Also able to program the GPS Satellite Controlled Clocks via serial commands.

Software Version and Related Information

Arbiter Time Service Tool (Arbiter Time Service)

PC Clock Synchronization Service for WIN NT/2000/XP. The Arbiter Time Service installs on Microsoft^® Windows NT/2000/XP and runs as a service to keep the PC clock synchronized to an Arbiter GPS clock. The Arbiter Time Service connects with an RS-232 cable and interrogates the clock for the time signal

Version	Rev Level	Version Notes
01Jan2010	1.5.0.0

Terminal Emulation Program (Tera Term)

Free software terminal emulator (communications program) for Microsoft Windows.

Tera Term (Pro) is a free software terminal emulator (communication program) for MS-Windows.
Supports VT100 emulation, telnet connection, serial port connection, etc.
Compatible with Windows 98, Windows NT, Windows 2000, Windows XP, Vista, Windows 7

Firmware Information (EPROM based firmware is not available for download)
1092/1093_Firmware_11Aug2011	Requires an EPROM update from Arbiter.

Firmware Version and Related Information

EPROM update (1092/1093_Firmware)

Version	Version Notes
11Aug2011	Update to the time quality functionality so it no longer displays locked, maximum accuracy immediately after reacquiring satellites.
26May2011	Fix IP address display to use periods (.) instead of colons (:).
12May2011	Add Option 34/35 support. Add "IP" serial command to return Option 34/35 IP addresses. Add display of Option 34/35 MAC addresses Add bit to indicate if unit has ever been locked to GPS. Update NTP status screens.
18Oct2010	Update serial "RD" output to be consistent across all clocks (reference BZ 489). Fix Option 28 XI configuration command (reference BZ 490). Leap second pending always 0 for Motorola 8-channel receiver (reference BZ 632). Fix 1093 Optional RS232 port periodically responded with "garbage" data (reference BZ 635).
02Nov2009	Fix power-up set defaults: Incorrectly had to wait until "SETUP" key released. Possible survey fix: "Zero" positions will now be ignored when doing survey calculation. Complete "Position Hold ID" (user or survey position flag) Block user from changing user position or position hold setting while survey active. Broadcast format time moved from the 20ms mark to 100ms mark. It was moved to give Option-28 enough time to format broadcast messages. (Opt-28 broadcast data was being copied while it was still being update causing some "0x00" characters to randomly appear in the message) DEBUG CODE: Output lat-long dif when debug_mode broadcast set to mode 2.

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IRIG-B Time Code Accuracy, IED and System Design Issues
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NERC PRC-08 Compliance Statement
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Time in the Power Industry: How and Why We Use It
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Why GPS Clocks Are Not Free
Download why_gps_clocks_arent_free.pdf (11.8 kB) »

App Note 103: Large Format Displays with Arbiter products
Download application_note_103.pdf (15.6 kB) »

IRIG Standard 200-04
Download irig-b_200-04.pdf (2.5 MB) »

IRIG-B Specifications
Download irig_b_spec_brief.pdf (26.6 kB) »

Windows^® Time Service Configuration
Download w32time.pdf (14.2 kB) »

Clock Option Selection Guide
Download clock_option_selection_guide.pdf (26.4 kB) »

Clock Selection Guide
Download clock_selection_guide.pdf (26.5 kB) »

Model 1092-93A/B/C Firmware Upgrade Instructions
Download 1093_DST_ROM_instructions.pdf (652 kB) »

Catalogo de Productos de Sincronizacion y Frecuencia
Download catalogo_de_productos_de_sincronizacion_y_frecuencia.pdf (216.1 kB) »