1.6.1 Input Power
AC power source:
100 to 240 V
AC
, 50/60 Hz, ±10 %
Maximum power draw:
TCXO/OCXO oscillator installed: 40 W normal (50 W start-up)
Rubidium (Rb) oscillator installed: 50 W normal (80 W start-up)
Low-Phase Noise (LPN) Rubidium oscillator installed: 52 W normal (85 W start-up)
Backup Battery: SecureSync has an internal battery to support the Real Time Clock. The
battery is a small recharging lithium coin cell that is not customer-replaceable. This battery
will keep approximate time and date in a shutdown state over ~135 days before requiring
recharge. After full drain, the battery will require ~5 days to fully recharge. Minimum bat-
tery life is ~30+ years.
Hotswap Power Supply: Some SecureSync models have hot-swappable power supplies
and can ensure power redundancy in case of failure. Both power sleds have the same spe-
cifications as the standard AC Power Supply (see above). For information on safe oper-
ation, see "Hotswap Power Supply" on page46.
1.6.2 GNSS Receiver
Model: u-blox M8T
Compatible signals:
GPS L1 C/A Code transmissions at 1575.42 MHz
GLONASS L10F transmissions centered at 1602.0 MHz
Galileo E1 B/C transmissions at 1575.42 MHz
BeiDou B1 transmissions centered at 1561.098 MHz
QZSS L1-SAIF transmissions at 1575.42 MHz
Satellites tracked: Up to 72 simultaneously
Update rate: up to 2Hz (concurrent)
Acquisition time: Typically <27seconds from cold start
Antenna requirements: Active antenna module, +5V, powered by SecureSync, 16dB
gain minimum
Antenna connector: SMA (SMA to N-type conversion cable included in anxillary kit)
1.6 Specifications
CHAPTER 1 • SecureSync 2400 User Manual Rev. 2
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