Meinberg LANTIME IMS-M500, Руководство пользователя

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12.5.12 LNO - 10MHz Sinus Output Module
The LNO180 is a 10MHz generator card, which provides sine signals with low phase noise to 4 external outputs.
The card has a microprocessor system, which monitors the output signals and generates status signals for the
upper-level management system accordingly.
Function of Operation
The card has a high quality oscillator, which is locked to an external 10MHz signal. The microprocessor moni-
tors the lock status of the PLL and the warm up phase of the oscillator. It activates the outputs only after the
phase is locked. This condition is signalized by all LEDs switched from green to red. In the phase locked state
the output levels of the four outputs are monitored and in case of a failure signalized by an associated red LED.
Technical Specifications:
Frequency Input: 10 MHz, sine (1V
pp
min.) or TTL
Output Level: 5 dBm +/- 1 dBm an 50 Ω
Warm-up time: < 3 @ 25
◦
C within accuracy of < +-1 x 10
-7
Electrical Connectors: BNC female
LED Status Indicators:
All LEDs red Outputs disabled
PLL not locked,
OCXO in warm up phase
10MHz reference not available
Quality of the reference signal
is not sufficient
All LEDs green: Normal operation, outputs activated
Associated LED red: defect output or short circuit during
normal operation
48 Date: 9th June 2016 LANTIME IMS-M500