So what kind of cable goes between this unit and an hdmi matrix? Rs 232 cable in the package has one end serial

You will need a phoenix RS232 cable on both ends to connect the matrix to the P8. The USB to RS232 cable is used to program commands to the P8 from the software. Jewel Support Team J-Tech Digital, Inc

Can I connect more than one of these to a device? I'd like to use them with a matrix switcher, but have need for two remotes.

Hello,As long as the device you're attempting to connect them to can accept more than one control panel, you can connect two to a single switcher. Kenny Support Team J-Tech Digital, Inc

So after it’s programmed, what cable do I use to connect with a jtech hdmi matrix?

Hello. You can use a RS232 cable, which comes pre-packaged with the unit. It is a white cable with an end that looks like an old PC monitor connector. Kenny Support Team J-Tech Digital, Inc

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J-Tech Digital 8-Button Control Panel Wall Plate with Programmable LED Buttons, RS-232, RS-458, Relay and IR Control (JTD-P8)

J-Tech Digital 8-Button Control Panel Wall Plate with Programmable LED Buttons, RS-232, RS-458, Relay and IR Control (JTD-P8)

Product ID: 348703449

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Details

Operation Mode
ON-OFF
Current Rating
2 Amps
Operating Voltage
12 Volts
Contact Type
Normally Open
Connector Type
hdmi mini usb

⚡12V/2A power with IP54 protection

🔗Multi-protocol control: RS-232, RS-485, IR, Relay

🔘8 programmable LED buttons

Description

🔘 Master your AV ecosystem with precision and style!

EFFORTLESS PROGRAMMING - Quick setup through included USB cable or IR learning with intuitive PC software.
BUILT TO LAST PERFORM - Robust IP54-rated design with brass/copper contacts ensures reliable, long-term operation.
LIFETIME SUPPORT FROM TEXAS - Enjoy 1-year warranty plus free lifetime expert support based in Sugar Land, TX.
UNIVERSAL DEVICE COMPATIBILITY - Control projectors, screens, TVs, and more via RS-232, RS-485, IR, and relay outputs.
TOTAL COMMAND AT YOUR FINGERTIPS - 8 fully programmable, backlit buttons with customizable labels for seamless device control.

The J-Tech Digital JTD-P8 is a sleek, wall-mounted 8-button control panel featuring programmable LED buttons and multi-protocol connectivity (RS-232, RS-485, IR, Relay). Designed for professional AV setups, it offers flexible device control, easy programming via USB or IR learning, and durable IP54-rated construction. Compatible with a wide range of third-party devices and backed by lifetime support, it’s the ultimate command center for modern media environments.

Specifications

Operation Mode	ON-OFF
Current Rating	2 Amps
Operating Voltage	12 Volts
Contact Type	Normally Open
Connector Type	hdmi,mini usb
Brand	J-Tech Digital
Terminal	Screw
Item dimensions L x W x H	11.4 x 7.1 x 4.1 Centimeters
Circuit Type	multi-way
Actuator Type	Push Button
Contact Material	Brass, Copper
International Protection Rating	IP54
Number of Positions	8
Controller Type	Push Button
Control Method	Touch
Connectivity Protocol	RS-232, RS-485, IR
Wattage	24 Watts
Net Quantity	1 Count
Number of Items	1
Manufacturer	J-Tech Digital INC
UPC	850001567176
Model	JTD-P8
Product Dimensions	11.43 x 7.11 x 4.06 cm; 453.59 g
Item model number	JTD-P8
Compatible Devices	PC, Projectors
Batteries Included	No
Batteries Required	No
Item Weight	454 g

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