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

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 Español
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Model 1093B/C Quick Setup Guide
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Model 1093B/C Quick Setup Guide Español
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Model 1092A/B/C Data Sheet
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GNSS Antenna 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 to the original owner/purchaser, 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!

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 two 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.
IEEE C37.118-2005 compliant for Synchrophasor use.

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 1092s. 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.

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.

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.

Interface

Operator

Display	Status LEDs (Models 1092A/B/C) 2 character 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 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-232	1200 baud 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 Vdc to 15 Vdc)

General

Physical

Size	43 mm H x 218 mm W x 257 mm deep, 1 RU with Rack Mount kit, AS0044500. 635 mm x 381 mm x 229 mm (25 in x 15 in x 9 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: 80 mm hex (across flats) x 84 mm tall (3.2 in x 3.3 in), including connector Weight: 170 g (6 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 ¹	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

Included
AS0083100	Adhesive Backed Feet (4)
AS0099200	Arbiter Universal GNSS Antenna
CA0021315 ¹	15 m (50 ft) RG-6 Antenna Cable, RoHS
P01W-P10W	Wall Mount Power Supply with Country Specific Plugs
PD0052700	Quick Setup Guide (1093)
Available
AP0003400 ²	BNC (Male) Breakout to 100 mm Wires
AP0008900 ³	BNC (Female) Breakout to 100 mm Wires
AP0009000 ⁴	Power Supply: 100-240 Vac, 50-60 Hz, IEC-320; 9 Vdc, 1 A
AP0013400	GNSS Antenna Cable Splitter, F-Type, 950-2150 MHz, One Port Pass DC
AP0014900 ⁵	BNC (Female) Breakout to Screw Terminal
AP0015000 ⁶	BNC (Male) Breakout to Screw Terminal
AS0035400	Operation Manual (1092/1093)
AS0044500	Rack Mount Kit (1092)
AS0044600	Antenna Mounting Kit
AS0044700 ⁷	21 dB In-Line Pre-amplifier
AS0048900	Antenna Grounding Block Kit, RoHS
AS0094500	GNSS Surge Arrester
CA0019806	RS-232 Null Modem Cable, DB9F-DB9F, 2 m (6 ft) length
CA0021302 ¹	2 m (6 ft) RG-6 Antenna Cable, RoHS
CA0021306 ¹	6 m (20 ft) RG-6 Antenna Cable, RoHS
CA0021330 ¹	30 m (100 ft) RG-6 Antenna Cable, RoHS
CA0021345 ¹	45 m (150 ft) RG-6 Antenna Cable, RoHS
CA0021360 ¹	60 m (200 ft) RG-6 Antenna Cable, RoHS
CA0021375 ¹	75 m (250 ft) RG-6 Antenna Cable, RoHS
CN0027700	Type F, Male, RG-6 Antenna Cable Crimp-on Connector, non-RoHS
CN0027800	Type F, Male, RG-11 Antenna Cable Crimp-on Connector, non-RoHS
CN0050700	Type F, Male, RG-6 Antenna Cable Compression Connector, RoHS
CN0050800 ⁸	Type F, Male, RG-6 Plenum Rated Antenna Cable Compression Connector, RoHS
CN0051300	Type F, Male, RG-11 Antenna Cable Compression Connector, RoHS
TF0006000	Type F, RG-11 Antenna Cable Crimp Tool
TF0006400	Type F, RG-6 Antenna Cable Crimp Tool
TF0013200	Antenna Cable Stripping Tool, RG-6
TF0013300	Antenna Cable Stripping Tool, RG-11
TF0024000	Type F, RG-6 Antenna Cable Compression Tool
TF0024100	Type F, RG-11 Antenna Cable Compression Tool
WC0004900 ¹	300 m (1000 ft) Roll RG-11 Cable, RoHS
WC0005000 ¹	300 m (1000 ft) Roll RG-6 Cable, RoHS
WC0005200 ⁹	300 m (1000 ft) Roll RG-6 Plenum Rated Cable, RoHS

¹ Stocked length. Custom lengths available from 0.3 m (1 ft) to 300 m (1000 ft). Contact factory.
² Converts female BNC-terminated coaxial cable to pair of wires.
³ Converts male BNC-terminated coaxial cable to pair of wires.
⁴ Used in conjunction with P01 - P10
⁵ Converts pair of wires to female BNC.
⁶ Converts pair of wires to male BNC.
⁷ Used for cable lengths greater than: RG-6 75 m (250 ft) ; RG-11 100 m (328 ft). For the Models 120x: Used for RG-6 cable lengths greater than 100 m (328 ft)
⁸ Indoor use only. Not weather resistant. Not UV radiation protected.
⁹ Stocked length. Custom lengths available from 0.3 m (1 ft) to 300 m (1000 ft). Contact factory. Indoor use only. Not weather resistant. Not UV radiation protected.

Click to Download Latest Version of Software
Tera Term_01Jan2010_23	Terminal program that can capture data from Models 930A and 931A. Also, can program the Satellite Clocks via serial commands. Modern version is available from their website: https://teratermproject.github.io/index-en.html
Tera Term SHA256_01Jan2010_23	Tera Term SHA256 checksum

Software Version and Related Information

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.

Tera Term SHA256

Firmware Information (EPROM based firmware is not available for download)
1092/1093_Firmware_21Mar2017	Requires an EPROM update from Arbiter.

Firmware Version and Related Information

EPROM update (1092/1093_Firmware)

Version	Rev Level	Version Notes
21Mar2017		Updates are not security related. Front panel SETUP menu of the B7 (OPT28 1PPS) serial broadcast incorrectly included the SELECT UTC OR LOCAL BROADCAST TIME submenu. The Option 28 main menu is the correct place to set Local or UTC time for the Option 28 data.
03Nov2016		Updates are not security related. Fix leap second operation to properly warn and implement the leap second. Changed the IRIG-B Daylight Saving Time (DST) pending bit to change state at xx:59:01 (was starting at xx:59:00). Now it is consistent with Leap Second Pending bit operation. Fixed the IRIG-B Daylight Saving Time (DST) pending bit to properly change state when exiting DST.
30Nov2015		Baseline code alignment with other legacy clock models. Does not affect clock operation at the outputs (BZ734).
02Nov2015		DST stop error. Not exiting DST mode properly when "day of week" value matches the first day of the following month (BZ733). Example: DST will not properly stop if DST stop was set to Last Sunday of October and November 1 is also on a Sunday. Add Option 36 as a Slot B selection. B8 broadcast output was missing a colon.
13Jun2013		Option 34 and Option 35 updates: PTP enable/disable now shows on front panel display. Enabled leap second flags, leap second application time (seconds of year), and UTC-GPS seconds offset. Fixed formatting related to the version strings.
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.

GPS Substation Clock Requirements
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IRIG-B Time Code Accuracy, IED and System Design Issues
Download irig_accuracy_and_connection_requirements.pdf (31 kB) »

NERC PRC-002 and PRC-018 Compliance Statement
Download pd0042900a_NERC_PRC-002_PRC-018_compliance_statement.pdf (70 kB) »

Time in the Power Industry: How and Why We Use It
Download TimeInThePowerIndustry.pdf (407 kB) »

Why GPS Clocks Are Not Free
Download why_gps_clocks_arent_free.pdf (12 kB) »

App Note 103: Large Format Displays with Arbiter products
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IRIG Standard 200-16
Download irig-b_200-16.pdf (857 kB) »

IRIG-B Specifications
Download irig_b_spec_brief.pdf (488 kB) »

Windows^® Time Service Configuration
Download w32time.pdf (14 kB) »

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

GNSS Surge Protector Installation Instructions
Download pd0045800_surge_protector_installation_instructions.pdf (110 kB) »

Timing Signals, IRIG-B and Pulses
Download pd0043200_timing_signals_overview.pdf (197 kB) »

Catalogo de Productos de Sincronizacion y Frecuencia
Download catalogo_de_productos_de_sincronizacion_y_frecuencia.pdf (312 kB) »

Press Release: Leap Second Anomaly December 2016
Download PD0054900_LeapSecondPressRelease.pdf (70 kB) »

Antenna Cable Assemblies RoHS2 Declaration of Conformity
Download Antenna_Cable_Assemblies_RoHS2_DoC.pdf (286 kB) »