Model 1094B GPS Satellite-Controlled Clock

The Arbiter Systems^®, Inc. Model 1094B GPS Substation Clock is a GPS timing source for substations which includes as standard the most common configuration options found in our other models. The Model 1094B with 400 ns (typical < 100 ns) worst-case accuracy meets the most demanding substation requirements, including synchrophasors. The Model 1094B has 4 LEDs to monitor operating status, a 2 x 20 character LCD setup/status display and a keyboard. The Model 1094B also comes equipped with a front panel screwdriver-slot power switch and white LED backlight.

The four outputs, with both BNC and 5 mm pluggable terminal strip connectors connected in parallel, are configurable to high-drive 5 Vdc (250 mA at > 4 V); IRIG-B12x modulated; or 300 volt open drain MOSFET signals. The high-drive 5 Vdc signal and the MOSFET outputs are selectable to: IRIG-B00x level-shift, 1 PPS, or programmable pulse A or B functions. All of the outputs have substantial drive capability to easily drive multiple loads in parallel.

Standard features include a GPS Data Backup Battery, one Form C fail-safe relay and Event Capture capability. The GPS Data Backup Battery maintains the real-time clock, almanac and ephemeris data in the 12-channel GPS receiver to speed acquisition. Satellites are acquired in as little as 15 seconds after a brief power loss. One Form C (SPDT) fail-safe, relay is jumper selectable to Fault, Unlocked or Programmable Pulse functions and is compatible with 129 Vdc digital fault recorder inputs. The Event Capture records events triggered from the dedicated, optically isolated rear panel input or from either serial port receive line with 100 ns resolution.

Power options include 85 to 264 Vac/110 to 275 Vdc, with either IEC-320 detachable line cord set or terminal strip inlet, and 10 to 60 Vdc with terminal strip inlet. The terminal-strip versions have a surge-withstand network designed to meet ANSI/IEEE C37.90-1 and IEC801-4 specifications. Power configurations may be retrofitted in the field.

Model 1094B Specifications

Receiver Characteristics:

Timing Accuracy:

Specifications apply at the 1 PPS output, in the presence of Selective Availability (SA), as of date of publication.

UTC/USNO: ±400 ns peak; <100 ns typical (SA off)

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.

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

I/O Configuration:

Outputs:

Four, each with BNC and 5 mm pluggable terminal strip in parallel. Jumper selectable to high-drive 5 Vdc (250 mA at > 4 V) selectable to: IRIG-B00x level-shift, 1 PPS, or Programmable Pulse A or B; IRIG-B12x modulated; or 300 volt MOSFET output. The MOSFET output is selectable to the same functions as the high drive 5 Vdc output. The MOSFET output is not electrically isolated from instrument common.

Event A Input:

One opto-isolated event capture input with 100 ns resolution, BNC connector jumper-configurable to 5 to 12, 24 to 48 and 120 to 240 Vdc nominal input. Event input is also jumper-configurable to COM 1 and COM 2 RXD line.

Programmable Pulse Output:

Two programmable pulse outputs, PPA and PPB. PPA is available (by a jumper connection) on outputs 1, 2 and COM 1 pin 4 (RS-232) and pins 8 and 9 (RS-485). PPB is available (by a jumper connection) on outputs 3, 4 and COM 2 pin 4 (RS-232) and pins 8 and 9 (RS-485).

Six 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
1 to 1000 PPS squarewave (PPB only)
Aux IRIG Mode (PPB only)

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.

Relay Contact:

One, Form C (SPDT) fail-safe, 0.3A at 130 Vdc; jumper selectable to Fault, Unlocked, or Programmable Pulse A (PPA) functions. Fail-safe means the relay indicates "fault" or "unlocked" condition with power off.

Interface:

Operator:

Display:

2 x 20 character supertwist LCD
White LED backlight

Functions:

Time: UTC or local
Position: latitude, longitude, elevation
Clock status
1 PPS (input) deviation
Event time

Status LEDs:

Operate (green)
Stabilized (green)
Unlocked (red)
Fault (red)

Keypad: Eight keys

Setup:

Local time offset
IRIG-B: Local/UTC/1344
Daylight Saving Time: On/Off/Auto
Backlight control: On/Off/Auto
Event input: Event/1 PPS deviation
Programmable Pulse setup
Antenna cable delay
Out of lock time: 1 to 99 minute(s), Off, or Zero Delay
Auto-Survey
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

Interrogate mode

Broadcast modes:

Standard ASCII (IRIG-J)
Extended ASCII
ASCII with Time Quality
ASCII with Time Quality and Year
Vorne large-display time
Status
Event

Connector: Male 9-pin D-sub (TXD, RXD, AUX IN, AUX OUT)

RS-422/485 Transmit only, to drive multiple devices

Certifications and Approvals:

CE mark/label and certificate

Power Requirements:

Standard:: Voltage: 85 to 264 Vac, 47 to 440 Hz, 20 VA maximum or 110 to 275 Vdc, 15 W maximum; Inlet: IEC-320 with fuse and mating cordset. Specify option P01 - P10; Available cordset plug style and specifications are described in the Options and AccessoriesOptions and Accessories section

General:

Physical:: Size: 1 RU rack mount or tabletop, 260 mm deep FMS, Rack mounts included.
508 x 381 x 203 mm (20 x 15 x 8 in.), shipping; Weight: 2 kg (4.5 lbs), net
5.5 kg (12 lbs), shipping
Antenna:: Mounting: 0.75 in. pipe (1 in. - 14 marine) thread; Cable Connection: F-type; 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:: Operating Temperature: 0° to +50° C (-20° to +70° C typical); Nonoperating Temperature: -40° to +85° 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

Options:

The available power options are listed below and are described in the Options and Accessories section, see our Product Catalog.Options and AccessoriesOptions and Accessories section.

Power (select only one):

Order Number:	Description
1094opt07:	IEC-320 Power Inlet, 85 to 264 Vac, 110 to 275 Vdc
1094opt08:	Terminal Power Strip, Surge Withstand, 10 to 60 Vdc
1094opt10:	Terminal Power Strip, Surge Withstand, 85 to 264 VAc, 110 to 275 Vdc

Accessories:

Included:

Order Number:	Description
AS0028200:	Rack Mount Kit
AS0076200:	GPS Antenna, pipe mountable
AS0083400:	1094 Operation Manual
CA0021315:	15 m (50 ft) RG-6 Antenna Cable
P01-P10:	Power Cord Available cordset plug style and specifications are described in the Options/Accessories section.

Available:

Order Number:	Description
AS0033100:	Rack Slide Kit
AS0044600:	GPS Antenna Mounting Bracket
AS0044700:	21 dB Pre-Amp, In Line - For use with cable lengths greater than 75 m (250 ft)
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
CA0021315:	15 m (50 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
TF0006400:	RG-6 Crimp Tool
WC0004900:	300 m (1000 ft) Roll RG-11 Cable