TMG1800 GNSS disciplined time & frequency generator The TMG1800 is a GNSS disciplined time & frequency generator designed for a wide range of applications. The equipment is housed in 1U 19" standard case. GNSS signal is used for long term disciplining of the internal oscillator. GNSS The internal GNSS receiver is a specific receiver dedicated to time application. It's a bi-constellation model able to acquire both GPS and GLONASS satellites simultaneously. It delivers a very high precision UTC second reference pulse. Irig-B generator The equipment includes a IRIG time code generator that allows to provide: an IRIGB122 signal (amplitude modulated analog signal). These signals are in phase with the internal 1PPS equipment itself synchronized on the 1PPS of GNSS reference. Oscillator An internal OCXO type oscillator provides a 10 MHz frequency used to maintain time. The stability of this oscillator is better than ± 1x10-9 per day in case of loss of external time sourcing. When disciplined by the GNSS, the long term stability remains better than 5x10-11. NTP Service The TMG1800 includes a time service implementing standard NTP protocol (Network Time Protocol) allowing any computer or equipment linked to the network to synchronize. Customer's computers can be synchronized with an accuracy of 1 to 10 ms. NTP client software must be installed on each client for its synchronization with the server. Remote control The remote control of the equipment is done via the network, using an internal web server Configuration The overall configuration of the unit is stored on a removable SDCARD memory which allows remote software update easily. — STATUS ®ON O GNSS nose V±L Information contained in this document is subject to changes without further notice. FP2091A0 www.timelinkmicro.com. TIMELINK MICROSYSTEMS 14 rue Jean Perrin 31100 Toulouse Tel. : +33 (0)5 62 87 10 70

TimeLinkmicrosystems Specifications Outputs 1 PPS output TTL level Accuracy of ± 100 ns relative to UTC : when locked to GNSS. IRIGB outputs IRIG B122 Modulated code (B12x) : 3V ±0.5 V peak-peak 1/1: 1/3 ratio isolated by transformer. BNC connectors (analog) 10 MHz Output Level +13 dBm ±1 dBm, 50 Q Guaranteed Phase noise: 1Hz <-90 dBc/Hz 1 KHz <-145dBc/Hz Internal reference OCXO type Oscillator, 10 MHz free running mode: Short term stability: 1s-10s < 2.10-11 Long term stability: 1 day < 1.10-9 locked running mode: Long term stability: < .10-10 GNSS Antenna type TNC connector 3V or 5V...