Grass Valley Rattler 4 Feb 24 2015 - Manual (Page 15)

11
Rattler 4
User Guide
LED Display Operation
Rattler Tx Unit
Fig. 2-3: Rattler Tx Unit LEDs
1 Power LED – indicates power is connected and within 5-16 VDC range
2 SIG LED – indicates HD/SDI Signal Presence
Rattler Rx Unit
Fig. 2-4: Rattler Rx Unit LEDs
1 Power LED – indicates power is connected and within 5-16 VDC range
2 Sig Strength LED Display – indicates Received Optical Signal Strength from -20 dBm to
0 dBM
Fiber Optic Signal Strength measurement is explained further in Fiber Optical Channel
Monitoring using the LED Display on page 14.
See below for examples of signal strength indications.
Two LEDs lit indicate a signal strength
between -15 dBm and -10 dBm Four LEDs lit indicate a signal strength
between -5 dBm and 0 dBm
Fig. 2-5: LED indications
The Rattler 4 will indicate a non-standard temperature reading if the LEDs begin to blink all
On and all Off.
Fig. 2-6: non-standard temperature LEDs
If the Rattler unit internal temperature drops below -30 degrees C or above 65 degress C,
the blinking LED indicator will start. At these extreme temperatures, unit performance will
be degraded or cease to function.