Campbell Scientific PS200/CH200 12 V Charging Regulators - Manual (Page 59)

PS200/CH200 12 V Charging Regulators
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
0
0.9
1.8
2.7
3.6
4.5
0
10
20
30
40
50
60
70
Voltage (Volts)
Current (Amps)
Power (Watts)
4.5
0
I
m
70
0
P
m
21 0 Vc
m
FIGURE 7-2. 70 W solar panel I – V and power characteristics
8. A100 Null Modem Adapter
The A100 adapter has two 9-pin CS I/O ports with a null modem between
them. The ports are used to connect two 9-pin devices (e.g., modems or RF
radios) that would normally be connected to the CS I/O port of a Campbell
datalogger. The charger supplies 12 volts and 5 volts to the appropriate pins on
the connector for powering the connected devices. This functionality is
required in a station where a datalogger will not be present, such as a phone-to-
RF base station. The A100 cannot be used as a null modem between two RS-
232 devices.
FIGURE 8-1. Null modem connections
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