DIGITECH LR8824 – 4 Channel Wireless Relay
Technical Specifications
- Power input: 10-15VDC
- Current draw: 350mA max. (<10mA standby)
- Range: 30m typical (300m+ line of sight)
- Relay contacts: 5A at 15V max.
- Transmission frequency: 433.92MHz
- Transmitter features: SAW locked, rolling-code, water-resistant.
- Learning Capability: 250 remotes per module.
Diagram and Legend
The diagram illustrates the DIGITECH LR8824 module. It features a rectangular circuit board with labeled components: 'A' (Antenna), 'B' (LED indicator), 'C' (Programming Button), 'D' (Momentary Setting dipswitch), 'E' (Latched Setting dipswitch), and 'F' (Wiring Harness connector). Input/output channels are labeled 'Channel 1', 'Channel 2', 'Channel 3', and 'Channel 4'.
| Label | Component |
|---|---|
| A | Antenna |
| B | LED |
| C | Programming Button |
| D | Momentary Setting |
| E | Latched Setting |
| F | Wiring Harness |
Safety Warning: Button Batteries
⚠️ KEEP BUTTON BATTERIES OUT OF REACH OF CHILDREN
- If swallowed a lithium button battery may lead to serious or fatal injury in as little as 2 hours, due to chemical burns and potential perforation of the oesophagus.
- Non-lithium button batteries can cause serious injuries if they are swallowed or placed inside any part of the body.
- All button batteries must be kept away from children regardless if they are new or used.
- If you suspect your child has swallowed or inserted a button battery, immediately call the 24-hour Poisons Information Centre on 13 11 26 (Australia) or 0800 764 766 (New Zealand) for fast, expert advice.
- If your child is having difficulty breathing, contact 000 (Australia) or 111 (New Zealand).
- Dispose of used button batteries immediately and safely out of the reach of children. A battery can still be dangerous even when it can no longer operate the device.
- As soon as you have finished using a button battery, put sticky tape around both sides of it. This will make it harder for children to swallow the button battery and avoid the risk of the battery catching fire.
- Immediately dispose of button batteries out of reach of children, or recycle using a child-resistant container and take used cells to your local battery collection centre.
Wiring Description
The following table details the wiring connections for the LR8824 module, mapping pin numbers to their respective features and wire colors.
| Pin No. | Color | Feature |
|---|---|---|
| 1 | L-W | Relay 4 NC |
| 2 | R-Y | Relay 4 COM |
| 3 | SB | Relay 4 NO |
| 4 | R | POWER |
| 5 | G-Y | Relay 2 NC |
| 6 | G | Relay 2 COM |
| 7 | R-W | Relay 2 NO |
| 8 | B-W | Relay 3 NC |
| 9 | BR | Relay 3 COM |
| 10 | O-W | Relay 3 NO |
| 11 | B | GND |
| 12 | B-Y | Relay 1 NC |
| 13 | GR | Relay 1 COM |
| 14 | Y-W | Relay 1 NO |
Color Key:
- R=RED
- B=BLACK
- L=BLUE
- Y=YELLOW
- G=GREEN
- O=ORANGE
- W=WHITE
- SB=SKY BLUE
- BR=BROWN
- GR=GRAY
Operation Notes
Remote Learning
To learn a remote, press the program button on the LR8824, then press the desired button on the remote. The LED will flash once to indicate successful learning. Any valid remote transmission will be indicated by a 1-second LED flash.
Deleting Remotes
To delete all paired remotes, press and hold the program button for 5 seconds. The LED will turn solid for 3 seconds to confirm that all remotes have been erased.
Selecting Momentary / Latched Mode
Configure each channel's operation mode by setting the corresponding dipswitch. The available modes are:
- Momentary: Output is active only while the button is held (minimum 500ms, maximum 20 seconds).
- Latched: Output toggles its state (on/off) with each button press.
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