JDS Uniphase OBS-55 Operating Manual page 66

3 G
ETTING
To change the AC line plug adapter:
1. Place the SNT-121A against the edge of a table or
bench as shown (see
2. Push the SNT-121A downwards.
3. Slide a different AC line plug adapter into the slot
(see Fig. 4).
Fig. 5 SNT-121A: Changing the AC line plug adapter.
To operate the OBS-55 from AC power:
1. Connect the SNT-121A DC power cord to the OBS-55
DC power socket.
(The socket is under the cover on the right side.)
2. Plug the SNT-121A into the AC line socket.
The OBS-55 switches on automatically when powered
from the SNT-121A.
Note: The SNT-121A provides power even if dry or
rechargeable batteries are fitted in the instrument.
The OBS-55 cannot be powered via the USB interface. If
USB is the only power source, a warning is shown and
the device is shut off automatically.
16
S
TARTED
Fig.
OBS-55
5).
JDSU