victron energy GX IO-Extender 150 Kenyelletso le Sephetho se Matlafalitsoeng Bakeng sa Lisebelisoa tsa GX

Selelekela
GX IO-Extender 150 ke mojule oa katoloso o hokahaneng le USB o holisang likou tse fumanehang tsa IO tsa lisebelisoa tsa GX joalo ka Ekrano GX le Cerbo GX.
E koala lekhalo lipakeng tsa sesebelisoa sa hau sa GX le lefats'e la kantle, e theha menyetla e sa feleng ea ho beha leihlo, taolo le boiketsetso.

Likaroloana

• 8 digital IOs, configurable as in two sets of four as inputs or outputs (via DIP switch).
• 4 PWM ports, 0 to 5V with 0.04V steps for device regulation.
• 2 latching relays that maintain their state even if the power is lost.
• 1 solid switch with bat-, load, and bat+ connections for switching requirements.

The plug-and-play USB connectivity makes installation effortless. The GX IO-Extender 150 is simply plugged into an available USB port on the GX device and the inputs/outputs, PWMs and relays immediately become available to the system.
Whether you’re managing a complex off-grid solar installation, a marine electrical system, or an industrial backup power solution, the GX IO-Extender 150 expands your ability to deliver on specific requirements:

• Monitor additional sensors and equipment
• Control external devices with precision
• Automate complex system responses
• Implement sophisticated control logic

The GX IO-Extender is not intended to be used for general load switching, but rather for signalling. The relays and solid switch have low current ratings that vary based on the voltage sebelisoa. Lihlahisoa tse lumellanang tse kang tsa Energy Solutions (UK), Garmin (USA) le Safiery, le tse ling li tla tšoaneleha hamolemo bakeng sa lisebelisoa tsa ho fetola ka kakaretso.

Relay and Solid Switch specifications

Latching li-relay
Contact rating (resistive load):

• DC: 3 A @ 30 V, 1 A @ 60 V, 0,3 A @ 220 V (max. 90 W)
• AC: 2 A @ 60 V, 1 A @ 125 V, 0,5 A @ 250 V (max. 125 VA)

Solid Switch

• Max. matla a betritage: 70 VDC
• Max. matla a hona joale: 4 A
• Max. capacitive load:
  • Vbat up to 15 V: 1000 µF
  • 15 V < Vbat < 30 V: 400 µF
  • 30 V < Vbat < 70 V: 50 µF
• Max. boima ba ho inductive:
  • Up to 1 A: 1000 mH
  • 1 A < I < 2 A: 100 mH
  • More than 2 A: 10 mH

Ho kenya

The GX IO-Extender 150 works with all GX devices but it is best used in combination with Node-RED. Node-RED is not supported on all GX devices. Refer to the Venus OS Large documentation for more information about which GX devices support Node-RED.
To install the GX IO-Extender 150:

1. Use the DIP switches on each bank of 4 digital I/Os to set them as 4 inputs or 4 outputs (ON = output, OFF = input). Note that changes to the DIP switches require a power cycle of the device.
2. Connect the USB cable of the GX IO-Extender 150 to an available port on the GX device. Note that the USB-port closest to the HDMI port on some Cerbo GX models may not be suitable for this purpose. Please refer to the GX device manual for more information.
3. Confirm the GX IO-Extender 150 is powered via the USB connection.
4. Sebelisa remote console ho GX ho boelaview li-relay tse eketsehileng, li-PWM le lintho tse kenang kapa tse hlahisoang ke dijithale tse fumanehang ho sistimi.

Lisebelisoa
Likou tsohle tse ho GX IO-Extender 150 li na le li-LED tse putsoa kapa tsa lamunu ho bonts'a boemo ba tsona ba hajoale.

Liphetho tsa dijithale li reretsoe sepheo sa ho fana ka matšoao feela 'me ha lia lokela ho sebelisoa ho fetola meroalo ka kotloloho. Liphetho tsa PWM li loketse lits'ebetso tse kang ho fifala ha LED, taolo ea lebelo la enjene, le lits'ebetso tse ts'oanang.

Temoso ea Tekheniki: Always check the maximum ratings for each output type in the datasheet of the GX IO-Extender 150.

Dijithale I/O
The digital I/O ports are split up in 2 groups of 4 ports which are intended for signalling rather than directly switching loads. Each group can be configured as either input or output using the dip switches in between the ports.

• Mode ON = output
• Mode OFF = input

Ka mor'a ho fetola mokhoa, qala GX bocha kapa u ntše polaka 'me u kenye hape thapo ea USB ho potoloha sesebelisoa hore liphetoho li sebetse.
Temoso ea Tekheniki: The digital outputs can source 4 mA max. When driving 4 mA, the voltage drop across the internal series resistor (560 Ω) is 2,24 V, which leaves only 2,76 V @ 4 mA for the output signal. Therefore, a driver like a transistor or FET is required to switch a relay with a digital output.

PWM
The PWM ports are to be connected between GND and signal. The PWM port indicator LEDs are illuminated when the port is switched on, and the intensity of the illumination reflects the current status of the PWM slider value.

Bistable Relays (Relay 1 & 2)
The bistable (latching) relays on the GX IO-Extender 150 work differently from the monostable (non-latching) relays found on devices like the Cerbo GX.
A monostable relay has a default state determined by its wiring:

• NO (Normally Open): Load is OFF by default, ON when relay is powered.
• NC (Normally Closed): Load is ON by default, OFF when relay is powered.

A bistable relay has two stable positions — A and B — that stay fixed even when power is lost. The relay switches between them with a short pulse, using no power to maintain either state. The active position is shown by the LED:

• Blue LED: Position A active
• Orange LED: Position B active

E tloaelehileng examples

1. Mimicking a NO monostable relay
   To replicate the behaviour of a normally open relay:
   • Connect your power source to COM.
   • Connect your load to Terminal A.
   • Leave Terminal B disconnected.
   • Configure the relay in Toggle mode.
     In position A (blue LED), the load is powered. In position B (orange LED), the load is disconnected.
     Haeba mojaro o lokela ho tima ka mor'a potoloho ea motlakase, beha sebaka sa B pele se koala.
2. Switching between “GREEN” and “RED” indicator lights The relay can switch power between two circuits, for exampLe:
   • COM connected to your power source.
   • Terminal A wired to an “GREEN” indicator light.
   • Terminal B wired to an “RED” indicator light.
   • Configure the relay in Toggle mode.
     Ha e le boemong ba A (LED e putsoa), lebone la BOTALA lea sebetsa. Ha e fetisetsoa ho boemo ba B (LED ea lamunu), lebone le RED lea sebetsa.
3. Momentary operation: Siren and “All OK” light For momentary operation with default feedback:
   • COM connected to your power source.
   • Terminal A wired to a siren.
   • Terminal B wired to an “All OK” light.
   • Configure the relay in Momentary mode.

In its resting state (position B, orange LED), the “All OK” light is illuminated. When the momentary switch is activated, it briefly switches the relay to position A, sounding the siren. Once the momentary pulse ends, the relay returns to position B, and the “All OK” light comes back on.

Solid Switch
The solid switch on the GX IO-Extender 150 is designed to electronically switch the positive side of a DC circuit, with no mechanical contacts.

• Bat+ → Connect to the positive terminal of your battery or DC power supply.
• Load → Connect to the positive side of your device or load.
• Bat- → Connect to the negative terminal of your battery or DC power supply.
• The negative side of your load connects directly to Bat- (or a shared ground).
• Configure the relay in Toggle mode.

This setup allows the solid-state relay to switch your load on and off by making or breaking the positive side of the circuit electronically.
If the solid switch is configured as momentary, it will only switch the load on for as long as the control signal remains active.

Software
Node-RED is a low-code programming environment for event-driven applications (https://nodered.org). See the installation manual for more information on the Node-RED and GX device combination: https://www.victronenergy.com/live/venus-os:large.

The following 4 steps are needed to get Node-RED up and running on your system:

1. Set the firmware image type to Large and update the firmware
2. Once rebooted in the large image, enable Node-RED
3. Open the Node-RED dashboard via either VRM under the Venus OS Large menu option or locally via https://venus.local:1881/
4. Pull in the Switch and Switch control node and control the GX IO-Extender 150. These nodes are part of the node-red-contrib-victron package that comes pre-installed with the Venus OS Large image.

Tsena, le tse ling, mohlalaample phallo e ka romelloa ka mokhoa oa ho kenya ka har'a Node-RED.

Simple digital input control
First, the digital input must be configured to a type using the Settings > Integrations > Digital IO on the GX device, then select a digital input from the GX IO-Extender 150 and set a type.

Supported input types are:

• Pulse meter N/A
• Door alarm Open/Closed
• Bilge pump On/Off
• Bilge alarm Ok/Alarm
• Burglar alarm Ok/Alarm
• Smoke alarm Ok/Alarm
• Fire alarm Ok/Alarm
• CO2 alarm Ok/Alarm
• Generator Running/Stopped
• Touch input control

Once an input type has been selected, a Digital input node can be used to read the status of that input for further use in the flow.

Exampe bonts'a li-pulse tse baliloeng ho kenyelletso ea dijithale ho sebelisa gauge ho dashboard ea Node-RED

Eketsa PWM

Karolo e ka holimo ea phallo ena ke ea ho bulela kapa ho tima boema-kepe ba PWM ho sebelisa parameter ea boemo ba PWM. Hang ha boema-kepe bo buletsoe, bo tla sebelisa boleng bofe kapa bofe ba PWM bo behiloeng ho sebelisoa paramethara ea PWM ea dimming. Node ea ho kenya e bala boleng ba hajoale ba boema-kepe ba PWM mme e boloka seo maemong a lefats'e a Node-RED.
Node ea ente e kenya nakoamp motsotsoana o mong le o mong, o nkeloang sebaka ke boleng ba hona joale ba PWM ba boema-kepe, bo eketsehile ka 25. Haeba boleng bo ka holimo ho 100, bo khutlela ho 0.

Hlokomela hore o kanna oa hloka ho lokisa boema-kepe bo sebelisitsoeng ba Switch le PWM sebakeng sa tšebetso ho etsa hore e sebetse ho uena.

Litlhaloso tsa tekheniki

GX IO-Extender 150
Phepelo voltage	E tsamaisoa ke USB
Tšebeliso ea matla	< 100 mW when idle, max, 1 W (< 200 mA @ 5 V)
Ho phahamisa	Wall or DIN-rail (by using adapter accessory)
Input and Output connectivity
Digital I/Os (isolated from USB)	8 I/Os with LEDs indicating state, configurable as 8 inputs, 8 outputs or 4 inputs + 4 outputs
	Inputs: 3,8 – 5,5 V, Outputs: 5 V, 4 mA max Li-I/O tsa dijithale li khona ho sebetsana le voltages ho fihlela ho 5,5 V. Overvolver leha e le efetage ka baka tshenyo e sa feleng
PWM output (isolated from USB)	4 channels with LEDs indicating the state Moqtagboemo ba e: 5 V, Precision: 8 bits @ 1,5625 kHz
Latching relays (potential free)	2x latching relays (bi-stable) le li-LED tse bontšang naha
	Contact rating (resistive load): DC: 3 A @ 30 V, 1 A @ 60 V, 0,3 A @ 220 V (90 W max) AC: 2 A @ 60 V, 1 A @ 125 V, 0,5 A @ 250 V (125VA max)
Switch e tiileng (e arohaneng le USB)	Boholo ba betri ea voltage:	70 VDC
	Boholo ba hona joale:	4 A
	Boholo ba capacitive load:	Vbat up to 15 V: 1000 µF 15 V < Vbat < 30 V: 400 µF 30 V < Vbat < 70 V: 50 µF
	Boholo ba ho kenya letsoho:	Up to 1 A: 1000 mH 1 A < | < 2 A: 100 mH More than 2 A: 10 mH
Litekanyo
Litekanyo tsa ka ntle (hxwxd)	123 x 67 x 23 limilimithara
Boima ba 'mele	0,170 lik'hilograma
Boemo ba mocheso o sebetsang	-20 °C ho ea +50 °C

Sehlomathiso

Available Control Paths
The device announces itself under the dbus service com.victronenergy.switch.<serial> and exposes the paths as described in this appendix. Check https://github.com/victronenergy/venus/wiki/dbus#switch for the meaning and usage of any additional paths.

Lisebelisoa tsa Dijithale
Digital inputs need to be coupled to a function first, before you can use them. This needs to be done in the console as described above.

Set the type of a digital input with

• 0 = E holofetse
• 1 = Pulse meter
• 2 = Monyako
• 3 = Bilge pump
• 4 = Bilge Alarm
• 5 = Burglar Alarm
• 6 = Alamo ea Mosi
• 7 = Alamo ea Mollo
• 8 = Alamo ea CO2
• 9 = Generator

Pulsemeter paths
/Count: number of counted pulses

Generic digital input paths
/State: State of the input

Digital Outputs
Note that these paths will only be present when the corresponding IO is set to output (with the DIP switches).

• /SwitchableOutput/output_1/State (0=Off, 1=On)
• /SwitchableOutput/output_2/State (0=Off, 1=On)
• /SwitchableOutput/output_3/State (0=Off, 1=On)
• /SwitchableOutput/output_4/State (0=Off, 1=On)
• /SwitchableOutput/output_5/State (0=Off, 1=On)
• /SwitchableOutput/output_6/State (0=Off, 1=On)
• /SwitchableOutput/output_7/State (0=Off, 1=On)
• /SwitchableOutput/output_8/State (0=Off, 1=On)

Litholoana tsa PWM

• /SwitchableOutput/pwm_1/State (0=Off, 1=On)
• /SwitchableOutput/pwm_1/Dimming (integer value from 0-100, representing percentage)
• /SwitchableOutput/pwm_2/State (0=Off, 1=On)
• /SwitchableOutput/pwm_2/Dimming (integer value from 0-100, representing percentage)
• /SwitchableOutput/pwm_3/State (0=Off, 1=On)
• /SwitchableOutput/pwm_3/Dimming (integer value from 0-100, representing percentage)
• /SwitchableOutput/pwm_4/State (0=Off, 1=On)
• /SwitchableOutput/pwm_4/Dimming (integer value from 0-100, representing percentage)

Pheta Outputs

• /SwitchableOutput/relay_1/State (0=Off, 1=On) – Bi-stable relay 0 = A, 1 = B
• /SwitchableOutput/relay_2/State (0=Off, 1=On) – Bi-stable relay 0 = A, 1 = B
• /SwitchableOutput/relay_3/State (0=Off, 1=On) – Solid switch load state

Litekanyo kampetsoeng

Litokomane / Lisebelisoa

victron energy GX IO-Extender 150 Kenyelletso le Sephetho se Matlafalitsoeng Bakeng sa Lisebelisoa tsa GX [pdf] Bukana ea Mosebelisi GX IO-Extender 150, GX IO-Extender 150 Input and Output For GX Devices, Input e Ntlafetseng le Output For GX Devices, Input and Output For GX Devices, Output For GX Devices, GX Devices

Litšupiso

• Bukana ea Mosebelisi