Operating the battery pack
R&S
®
TSMA6B-BP
20
Manual 4900.9099.02 ─ 02
6
Operating the battery pack
For portable operation powered from the batteries, we recommend to use
the R&S
TSMA6B-BP always with 2 batteries in the bay. Then the batteries
have a comparable charging state as they are discharged simultaneously.
Seamless switching of the output power is done automatically. As long as suffi-
cient DC IN power is available, the external power supply supplies the connected
devices and charges the batteries.
If DC IN power is removed or cracking, the batteries power the connected devi-
ces.
6.1
Standalone operation
In the standalone mode, the R&S
TSMA6B-BP is used without an
R&S
TSMA6/6B. The R&S
TSMA6B-BP handles battery charging and output
power path switching. The charging state of the batteries can be read from the
rear panel LEDs only when an external DC supply is connected (see
ter 6.4.2, "Rear panel LEDs in standalone operation"
6.2
Host-controlled operation
The R&S
TSMA6B-BP is used in combination with a R&S
TSMA6/6B. Charging
info is provided via the SMBus interface of the docking connector (see
on page 14). The rear panel LEDs are controlled by
R&S
TSMA6/6B. Charging state and remaining battery power are displayed when
the R&S
TSMA6/6B is switched on (see
Chapter 6.4.2, "Rear panel LEDs in
Host-controlled operation