Model 1094B

The Arbiter Systems®, Inc. Model 1094B GPS Substation Clock is a GPS timing source for substations which includes as standard the most commonly configuration options of 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); IRIGB12x 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 aquired in as little as 10 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 10 ns resolution.
A built-in low-noise amplifier allows use of antenna cables up to 120 meters (400 feet) without requiring an external, in-line amplifier. With the in-line amplifier, total cable length can be up to 180 meters (600 feet) for standard RG-6 size cable, and up to 300 meters (1000 feet) for the optional, RG-11 size cable.
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.