Remote Processing CX-10 - Manual (Page 32)

BATTERY CHARGER & POWER SECTION 8
Page 8-2
1 2
9 10
Figure 8-1 Serial
pinout (top view)
Additionally, unswitched +5V is available at pin 10 on
each serial connector.
Fused battery power (12V) is available at P2 pin 5.
Switched battery power (12V) is available at P2 pin 6.
Both battery power (12V) and +5V power are switched
on and off through register 4823. By default, power is
turned off. Power is turned on by writing a ‘1' to this
register.
On/off condition is stored in EEPROM. The on/off
status will be remembered on power up or reset.
POWER CONSUMPTION
Power consumption can be a consideration, depending
upon how the CX-10 is powered. If the CX-10 is
powered from a reliable external source, such as AC
powered DC supply, then consumption is not as great of
a concern. However, if the CX-10 is solar powered, then
power consumption is more important.
The CX-10 nominally operates from 12V DC. If you are
using a reliable AC supply, then DC power supply
requirements are easily determined.
Below is a table listing the power consumption for the
board, each relay and LED, and the RF modem.
CX-10 component Current draw (milli-
amperes)
CX-10 board only 80
Each relay 40
Each opto LED indicator 10
RF modem (receive
mode) 90
If all relays and LED’s are active and the RF modem is
ready to receive (not transmitting), maximum current is
730 milli-amperes.
A line powered DC supply should be rated at1 ampere.
If you have a 12V battery connected, then this DC supply
should be between 15-24 volts DC. If battery backup is
not required, 12V DC may be used.