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Global Cache Global Connect, GC4 w/ HDMI Switch, Serial


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WARNING: Cancer and Reproductive Harm –


Modular Network Hub for Multiple Connections

The Global Caché Global Connect GC4 with HDMI Switch and Serial allows you to connect HDMI and RS232 serial devices to a network. This module provides an HDMI switch with 3 inputs and 1 output and an RS232 serial port. It connects to the Internet via Ethernet and includes a 4 Slot, 6-inch freestanding chassis and power supply.

HDMI Switch (3 input: 1 output)

This module allows your home electronic devices that connect through HDMI (such as TVs or gaming consoles) to communicate with each other over a network. The HDMI switch module allows for network-controlled switching between 3 different sources at resolutions up to UHD 4K at 60Hz via HDMI cables. This module provides 3 in 1 out HDMI switching functions and allows for switching to any one of the 3 HDMI inputs as well as turning off transmission completely from the HDMI switch. The switch can also detect whether the connected HDMI devices are powered on, off, or are in standby mode.

This module also includes HDMI-CEC (Consumer Electronic Control) injection capabilities and support for HDCP 2.2 (High-bandwidth Digital Content Protection) devices. With CEC control many commands typically sent with a physical remote can be performed over a hard-wired HDMI connection.

RS232 DB9 Connector

This bidirectional module connects RS232 devices to a network and serial devices and includes an easy to use, highly configurable web interface. To access the serial configuration settings, navigate to the Serial Settings page on the unit's configuration pages. Each RS232 interface includes a male DTE (Data Terminal Equipment) DB9 connector.

  • Modular network adapter enables universal control over multiple connection types
  • Configure Module Setting using the Global Connect Online Web Portal
  • Allows serial and HDMI devices to connect to a network
  • Bi-directional with hardware RTS/CTS flow control
  • Uses TCP port 4999 for communication
  • Network-controlled switching between 3 different sources at resolutions up to UHD 4K at 60Hz
  • Supports HDCP 2.2 (High-bandwidth Digital Content Protection) devices
  • Integrated web server for easy configuration

Single Ethernet Network Module

Each Global Connect includes a network module. The network module provides the network connection and power input for the entire unit. Network modules can be powered with any power supply between 5v and 24V DC. All Global Connect units ship with an appropriately rated power supply.

Installation Details

The Global Connect is a freestanding chassis that can placed on your entertainment stand or in your office or server room. Connect Global Connect to your home network via Ethernet.

Global Caché Global Connect uses an online web tool to set up and configure each module installed in the Global Connect chassis. Additionally, Global Caché has a list of partner apps and software that can integrate with their online web tool and even allow for remote control of your connected devices.

To configure the Global Connect, download and run Global Caché's iHelp program. The program will detect the individual IP addresses for each of the modules installed. Select the module you wish to adjust settings for and apply the relevant changes.


  • HDMI Switch
  • RS232 DB9 Connector
  • 4 Slot, 6-Inch Freestanding Chassis
  • Manual

IMPORTANT NOTE: Global Caché products are not available to ship outside the U.S. Please contact Global Caché directly for international orders.

Network-Based Automation

As the number of homes and businesses with high-bandwidth Internet and networking capability has grown dramatically, so has the number of people who want to take advantage of their connected environments. Using network-based automation and control software, you can be safer, more energy efficient, and have more convenience and fun.


  • Manufacturer Part #: GC4/NE/HM/SL

Single Ethernet Network Module

  • Network Connector: RJ45
  • Network Speed: 100Mbps, Full Duplex
  • Power Connector: Barrel Jack: 5.5mm x 2.1mm (Center Positive)
  • Power Input: Range: 5V-24V

Serial RS232 Bi-directional

  • Ports: 1 x Male DB9
  • Baud Rate: 300-115200 baud
  • Flow Control: Hardware, None
  • Parity: None, Even, or Odd
  • Data Bits: 8
  • Stop Bits: 1, or 2
  • Certifications: Tested to CE, FCC, CTick, RoHS
  • Warranty: 2-Year Limited
  • Technical Features:
    • 300 baud to 115.2 Kbaud data rates supported Odd, Even, and None parity settings
    • TCP and HTTP API (Restful)
    • Integrated web server for easy configuration
    • Requires 1 GC Chassis slot
    • Support Available via phone, email, and portal

HDMI 3:1 Switch Module

  • Ports: 3 Inputs, 1 Output
  • Data Bandwidth: 18Gbps
  • 4K Resolutions:
    • UHD 4K 60Hz, 4:4:4 8 bit
    • UHD 4K 60Hz, 4:2:2 8 bit|10 bit|12 bit
    • UHD 4K 60Hz, 4:2:0 8 bit|10 bit|12 bit
  • Certifications: Tested to CE, FCC, CTick, RoHS
  • Warranty: 2-Year Limited
  • Technical Features:
    • Integrated web server for easy configuration
    • CEC injection and CEC snooping
    • HDCP 2.2
    • 3:1 HDMI switching
    • Supports 18Gbps, including UHD 4K 4:4:4@60fps 8bit or 4K 4:2:0@60fps 16bit
    • Network controlled switching
    • HDMI cable from Raspberry Pi to the front panel included
    • Support available via phone, email, and portal