Grass Valley Telethon 3G - Manual (Page 23)

19
Telethon 3G
User Guide
Using the Telethon 3G Optical Measurement Display
Telethon 3G Optical Measurement Display
The Telethon 3G optical signal strength display has characteristics for the Telethon 3G
Transmitter, Receiver, and Transceiver.
The Channel Select switch is a dual function switch:
• Flicking to the right allows scrolling through the individual channels to provide basic
status on the signal.
• Flicking to the left provides additional information about the current channel.
Fig. 4-1: Flicking the CHAN SEL switch
Scroll through the signal channels by flicking the switch to the right. The system reports on
the eight SDI channels and the four fiber channels being received at the unit. The signal
strength of the four fiber channels received is measured. The four fiber channel signals
being sent from the unit are not displayed.
After the last channel, the display will display the current ambient temperature within the
unit chassis in degress Celsius.
After each flick, the display will indicate the monitored channel (such Tx01 or Rx01). Once
the four fiber channel signals are received at the unit, the display will shift to one of the
conditions described below.
As you scroll through the channels, one of three conditions will be displayed for the
Received channels:
• No fiber link for a channel (see Condition 1: No Optical Link on page 19)
• Existing optical link but with no active SDI Data (see Condition 2 - Optical Link good but
no SDI data present. on page 20)
• Active usable optical link with SDI Data (see Condition 3 - Active usable optical link with
SDI Data on page 20)
Condition 1: No Optical Link
If there is no optical link on a particular channel, the display will show n/A (not available).
Flicking the switch
left or right