TDM-over-IP Gateways, Multiplexers & Cross Connects
ForeFront FF-G811 Forefront ITU-T G.811/Stratum-1 NTP Primary Reference Clock for 2G, 3G, LTE, TDMoIP and SDH/Sonnet.

This Primary Reference Clock appliance is an ITU-T G.811 with two (2) 2.048 MHz frequency and two (2) 2.048 Mbps (E1) clock outputs derived from its integrated GPS receiver. Designed specifically for 2G, 3G, LTE, TDMoIP, Wireline Backhaul, SDH/SONET and Synchronous Ethernet.

• Master Timing Source - This Primary Reference Clock is GPS-locked ITU-T G.811 / Stratum 1 compliant.
• Multiport - Offers two (2) 2.048 MHz frequency (BNC) and two (2) 2.048 Mbps (E1, RJ-45) clock output derived from its integrated GPS receiver.
• Industrial Grade - Designed rugged (Fanless, -20 to +60C degrees) specifically for 2G, 3G, LTE, TDMoIP, Wireline Backhaul, SDH/SONET and Synchronous Ethernet.
• GPS Receiver - GPS L1 frequency, C/A Code Receiver, 50 Channel GPS that tracks up to 12 satellites simultaneously (TNC-F Connector). 10 MHz (SMA-F Connector) and, 1PPS (SMA-F Connector).
• GPS Signal - Tracking and Navigation -162 dBm, Reacquisition -160 dBm, Cold Start -148 dBm.
• Synchronizing Time - Cold Start (includes almanac acquisition time): 27 seconds. Time-To-Fix (almanac acquisition already completed): 1 second.
• Holdover Clock - High stability OCXO disciplined phase lock loop oscillator with frequency stability of +8 ppb.
• Applications - Useful for SDH/SONET transport, Wireless (UMTS, GPRS, 3G and LTE) and Wireline Telecom synchronization, including Power Utilities, Defense Networks, Airports/Aviation communications and Railway signaling.

The FF-G811 is a small, cost-effective, high performance, ITU-T G.811 / Stratum 1 compliant Primary Reference Clock.  The unit’s outport ports include two (2) x 2.048 MHz frequency clocks presented on BNCs, and two (2) x 2.048 Mbits (E1) clock outputs presented on RJ-45 connectors.  The clocks are derived from its integrated GPS receiver.

The unit is specifically designed with synchronization of 2G, 3G and LTE mobile telecommunications networks, and backhaul wireline SDH / SONET / SyncE networks in mind.

The device acts as a master timing source/reference delivering highly accurate and stable time signals that other network devices can use for synchronization.

The GPS Receiver uses the GPS L1 frequency (1575.42 MHz) and C/A (Coarse/Acquisition) code signal, can process signals from up to 50 different GPS satellites and tracks up to 12 satellites simultaneously.  The GPS Signal tracking & navigation is -162 dBm, Reacquisition -160 dBm, Cold Start -148 dBm.

The Synchronizing Time is 27 seconds from a Cold Start including the almanac acquisition time and the Time-To-Fix (almanac acquisition already completed) is only 1 second.  Holdover Clock uses a high stability OCXO-disciplined phase-lock-loop oscillator with frequency stability of +8 ppb.

The FF-G811 touts Fanless operation and extended operating temperatures -20 to +60C degrees suitable for industrial applications.  The Primary Reference Clock is ideal for SDH/SONET transport, Wireless (UMTS, GPRS, 3G and LTE) and Wireline Telecom synchronization, including Power Utilities, Defense Networks, Airports/Aviation communications and Railway signaling.