The Model 120A GNSS Synchronized Clock is a multi-satellite system (GPS, Galileo, GLONASS, BeiDou) timing source. Designed as an economical solution for reclosers and other enclosed installations, includes a rugged, low-profile, bulkhead-mount antenna with 5 meters of cable.

The Model 120A has a seventy-two channel receiver, capable of tracking up to 3 satellite constellation systems simultaneously providing a 100 ns rms accuracy.

Two pluggable terminal strip outputs provide IRIG-B unmodulated, 1 PPS, or Programmable Pulse; software selectable. These outputs are configurable to a 50 ohm driver or a high capacity driver. The Model 120A comes standard with two communication ports, one RS-232 and one USB. A SPST relay is also included and is configurable to Out of Lock, Fault, Alarm, Stabilized, or Programmable Pulse.

Low-voltage dc power input accepts + 8 Vdc to + 32 Vdc.

Accuracy of ± 100 ns rms
Two outputs, software selectable signals:
Unmodulated IRIG-B
1 PPS
Two outputs, software selectable drive capability:
50 ohm
High-drive (125 mA)
One Form A (SPST) fail-safe relay: 0.12 A at 400 Vdc (400 mW)
Low dc power input: + 8 Vdc to + 32 Vdc

Enhancements

Multi-system timing sources (GPS/ GLONASS/Galileo/BeiDou).
Micro-USB management port.
Configured through command-line interface.
Xmodem Firmware updates.
Wide operating temperature range.
IRIG-B compliant with IEEE Std. C37.118.1-2011 Synchrophasor use.

Parameter Name	Parameter Value
Options	synchronized GPS GNSS