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
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 |
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 |
|
| Functions |
|
| Status LEDs |
|
| Keyboard | Eight keys; select display functions or setup menus (Model 1093B/C) |
| Setup |
|
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 (1093opt19) |
| RS-422/485 | Optional driver can also be fitted (1093opt94) |
| Broadcast modes |
|
| 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
| 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
| Size | 1 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 |
| Weight | 2 kg (4.5 lbs), net 5.5 kg (12 lbs), shipping |
| Antenna | Cable 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 Cable | Type: RG-6, 15 m (50 ft) provided Weight: 0.69 kg (1.52 lbs) per 15 m |
| Antenna Mounting | 0.75 in pipe (1 in – 14 marine) thread |
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.
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:
