LNO180: 10 MHz sine output module


The LNO180 is a 10 MHz 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. It may be preferably used in our modular M900 timeserver platform and GPS based 3U housing but can also be applied in older systems without management functions.

Key Features

Warranty Period (Years): 3 RoHS-compliant
  • Four sine wave outputs with 5dBm output level
  • Four LEDs: Signal status at corresponding output
  • Input: 10 MHz, sine (1Vpp min.) or TTL




Product Description

Function operation
The card has a high quality oscillator, which is locked to an external 10 MHz signal. The microprocessor monitors 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.

The function of the LEDs is as follows:

  • All LEDs red: outputs disabled
    • PLL not locked, OCXO in warm up phase
    • 10 MHz 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



Characteristics

Status Indicators All LEDs red: outputs disabled
All LEDs green: normal operation, outputs activated
Associated LED red: defect output or short circuit during normal operation
Frequency input 10 MHz, sine (1Vpp min.) or TTL
Interface 4 sine outputs
10 MHz
Output level: 5 dBm +/- 1 dBm into 50 ohm

Option:
LNO-8dB with 8 dBm output level
LNO-12dB with 12 dBm output level
Dimensions of the front panel 4HP/3U (20mm x 128mm)
Electrical Connectors Rear VG edge connector DIN 41612, type C 96-pins, rows a + b + c
BNC connectors
Quartz Filter Bandwidth 1 kHz
Operating Voltage 5 dBm: +5 V @ 550 mA (steady state), +5V @670 mA (warm-Up)
8 dBm: +5 V @ 720 mA (steady state), +5 V @ 640 mA (warm up)
12 dBm +5 V @ 970 mA (steady state), + 5V @ 620 mA (warm up)
Board type Eurocard
Board Dimensions 160 mm x 100 mm, 1,5 mm Epoxy
Supported Temperature 0 to 65 °C / 32 to 149 °F
Supported Humidity Max. 85 % (non-condensing) at 40 °C
Warranty Three-year warranty
RoHS Status of Product This product is fully RoHS-compliant.
WEEE Status of Product This product is handled as a B2B (Business to Business) category product. To ensure that the product is disposed of in a WEEE-compliant fashion, it can be returned to the manufacturer. Any transportation expenses for returning this product (at end-of-life) must be covered by the end user, while Meinberg will bear the costs for the waste disposal itself.


Downloads

Short Info Sheet



Manuals

  • Handbuch (deutsch) zur Zeit nicht verfügbar.
  • Manual (english) not available at current time.

Please note that only the most recent manual version is available for download. This manual therefore may not be suitable for all product versions.
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