Switching The Backlight On/Off; Display Elements - JDS Uniphase OBS-55 Operating Manual

Tipp: You can also use the Power OFF command in this
menu to switch off the device. Simply press [
twice (the first press opens the menu, the second
selects the item).

Switching the backlight on/off

'
⇒ Press [
] to switch the backlight on.
'
⇒ Press [
] again to switch the backlight off.

Display elements

Fig. 7 OBS-55 operation display
USB
JDSU
External power supply
The OBS-55 is powered by the external
AC adapter when this symbol is shown.
Battery status
Indicates the battery charge status. If it is
not shown, only the AC adapter is active.
Power supply via USB
The device is powered via the USB
interface for remote operation.
OBS-55
4 B O
ASIC PERATION
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