NMEA BUFFER MODULE

Image description
Image description

Four Channel NMEA buffer board with USB or opto isolated RS232/RS422 input and 4 x RS422 optically isolated outputs, with a seperate USB monitoring output on channel 4.

IP67 housing.

Power input, 9-25V DC @ 60mA.

 

Used in current HMS RIB applications (in a more robust housing).

 

Four Channel 'Simple' Remote Control Module

£35
Image description
Image description
Remote_1.pdf
Enter file download description here

Does not use mechanical coil operated power relays which consume high battery power, uses electronic Mosfet switching to control up to 4 switched outputs.

 

Designed to be used in low power portable battery systems. Built and tested in the UK.

 

Will operate with any input voltage from 5V DC to 30V DC.

Operating temperature range, -20° to + 75°C.

 

Operates over the 433 Mhz Radio control frequency signal transmission band.

You can remotely control each output via the 4 channel transmitter key fob, two fobs are supplied as standard, up to 20 key fobs may be ‘paired’ to the receiver unit.

 

The receiver module can be controlled to within 50 meters, in open area. The RF chip used is the learning code chip EV1527 which makes the system very secure.

 

Each output switches the +V input rail to it’s output terminal and uses the common input 0v as it’s return.

Each output can source up to 3.5 Amp continuous current (dependant upon input voltage level, see ‘safe area’ illustration below).

 

Each output is individually protected by a self resetting electronic fuse. There are 4 LEDs mounted on the PCB that indicate if that channel is ON or OFF.

 

The maximum current through the system with all 4 outputs ON, is 12 Amps total.

The standby current is only 6 mA, even with the 4 outputs switched ON (but no load current).

 

Two remote transmitter fobs are included, both are ’paired’ to the control unit and are fully tested before leaving the factory, also each of the 4 outputs are tested at full power to ensure correct operation. Batteries are included within the TX fob units.

 

The RF receiver is extremely easy to set up and reset. There are 3 operating modes (momentary/toggle mode & latching mode) that can be configured. Momentary mode is the default mode when shipped.

 

The receiver module is housed within a small plastic enclosure, 68 x 45mm, with internal heat sinking, no external aerial is required.

 

 



 

Operating mode.

 

The remote control fobs supplied have already been ‘paired’ to the receiver module and set for ‘Momentary’ mode. If you require ‘Toggle’ mode or ‘Latched’ mode you will need to delete the memory within the RX module first.

Press the ‘learning’ button 8 times to clear the memory, the LED will flash 3 times after, indicating the memory is clear and you may now select one of the modes below.

 

Momentary Mode:

Set-up.

Press the learning button on the RX board ‘once’.

Wait 3 seconds for the LED to stabilise ON.

Press button ‘A’ on the remote control.

All 4 buttons will now operate in ‘Momentary-mode’ individually.

 

Toggle Mode:

Set-up.

Press the learning button on the RX board ‘twice’.

Wait 3 seconds for the LED to stabilise ON.

Press button ‘A’ on the remote control.

All 4 buttons will now operate in ‘Toggle Mode’ individually,

Press button once to turn ON the channel, press same button again to turn OFF the channel.

 

Latched Mode:

Set-up.

Press the learning button on the RX board ‘3 times’.

Wait 3 seconds for the LED to stabilise ON.

Press button ‘A’ on the remote control.

All 4 buttons will now operate in ‘Latched Mode’.

Press the ‘A’ button once to turn ON channel A, press button ‘B’ to turn OFF channel ‘A’ and at the same time this will turn ON channel ‘B’.