Motorola R-2001A Service Manual page 217

MOTOROLA INC.
Communications
Group
MOTOROLA BATTERY PACK
MODEL RTP-l002A
1. DESCRiPTION
The RTP-1002A is a battery pack and charger
designed to be mounted to the back of the R-2001A
Communications System Analyzer. The unit contains
battery capacity to operate the R-2001A for approx-
imately one hour. A constant current charging system is
capable of recharging the batteries in 16 hours.
2. OPERATION
2.1 The RTP-1002A Battery Pack is automatically
engaged when no ac power is present, and the
power switch is either in the ON or STAND BY posi-
tions. When ac power is applied, the R-2001A
automatically switches the RTP-1002A Battery Pack
out of the circuit and draws its power from the ac power
source.
HIGH CHARGE
INDICATOR LEO
RTP-1002A
BATTER Y PACK
2.2 When the power switch is in the OFF or STAND-
BY position and ac · power is applied to the
R-2001A, the RTP-1002A Battery Pack draws de cur-
rent from the R-2001A to activate the charging circuit.
The charging circuit delivers approximately 750 rnA of
current until the battery voltage reaches 14 volts. As the
battery voltage reaches 14 volts, the current drops to ap-
proximately 25 rnA and the high-charge indicator LED
extinguishes.
2.3 When the R-2001A systems analyzer is used with
the RTP-1002A Battery Pack, it is recommended
to keep the power switch in the STAND BY position
whenever possible. This extends the time the battery is
able to operate the R-2001A Communications System
Analyzer. The low trickle charge rate enables the bat-
teries to be left on charge indefinitely without damage
due to overcharging.
R2001A
COMMUNICATIONS
SYSTEM ANALYZER
floEPS-:1'1172-0
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RTP-1002A Battery Pack Mounting Detail
©
Motorola, Inc. 1980
All Riahts Reserved
Printed in U.S.A.
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1301 E. Algonquin Road, Schaumburg, II. 60196
68P81122E59-A
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