Sokkia GSR2700 ISX, Руководство по эксплуатации

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50 GSR2700 ISX Operations Manual
Chapter 6
Powering the GSR2700 ISX
6.3 Powering Peripheral Devices
The GSR2700 ISX is capable of providing power to peripheral
devices through its COM ports. The power output is
approximately the same as the input of the active battery.
NOTE Typically, the COM ports are not sent power. For example, since
most data collectors do not have a power pin, COM1 would not
usually provide power.
If the peripheral devices attached to the GSR2700 ISX draw too
much power from the battery output, the receiver will limit the
available current to prevent damage to the receiver. Once the
excessive load is removed, normal operation of the system will
resume.
NOTE If a peripheral device (for example, a high-powered radio) was
the cause of the current drain, it will probably not function after
the system resumes normal operation.
If you use the SOKKIA-recommended data collector and radio,
you will not overload your system. System overload can only
occur if you attach peripherals that have not been approved for
use with the GSR2700 ISX.
6.4 Power Consumption
The GSR2700 ISX has been designed to minimize its power
usage. Power consumption is less than 5 W using the internal
radio.
When the receiver is off, it continues to draw a small amount of
power from the batteries. However, the typical shelf life of the
internal GSR2700 ISX batteries is approximately six months.
After this storage period, the batteries may become fully
discharged. If this happens, recharge the batteries to resume
operation (see Section 6.6,
Charging the Internal Batteries , page 52).