User manual

SimpleComTools, LLC PRC1000 – User Manual

SimpleComTools, LLC 16

Using the PRC1000 for power-cycling equipment

As previously mentioned, the PRC1000 can be used to control equipment that is regularly OFF that you want

to power it ON for a brief period of time, or regularly ON and needs to be powered OFF for a specific period of

time. In this second scenario, the duration for the OFF period of time can be short enough to simply act as a

power-cycle for the equipment if you like.

Here’s how that works….

When the PRC1000 relay is in the ON state, the Normally Open side of the relay is engaged and your

equipment is powered ON. In order to have the power drop (cycle) for a brief period of time (say for example

one minute), you have two choices:

1) Connect your equipment to the Normally Open contact and set the On Duration for 23 hrs and 59 minutes

…or…

2) Connect your equipment to the Normally Closed contact and set the On Duration for one minute

Here’s an example using method #2 to power-cycle equipment for 1-minute at a specific time of day.

Step 1:

Connect the GROUND (negative) lead from the power source to the equipment ground.

Step 2:

Connect the POWER (positive) lead from the power source to the COMMON interfaces on Relays 1 and 2.

Step 3:

Connect the Normally Open (NC) side of the Relays to the positive lead of the electronic equipment.

Step 4:

Set the PRC1000 for the time you want the power-cycle event to take place. (In this case, 0100 or 1:00 AM)

AT*RnONTIME=01:00 (1:00 AM) (Value is in military time in the form HH:MM)

Step 5:

Set the PRC1000 for the length of time you want the equipment to be powered off: (In this case, 1 minute)

AT*RnONDURATION=00:01:00 (1 minute) (Value is in military time in the form HH:MM:SS)

Diagram showing how to connect equipment that is normally ON to be power OFF for a period of time

Data Logger

Radio

PRC1000

Relay 1

Relay 2

PWR

PRC1000

POS NEG

(+) (-)

Battery