Flex Link Serial Cables

Global Caché’s Flex is the first multi-functional IoT gateway that connects almost any electronic device prod-flc-sl-fwto a WiFi or TCP/IP network so that it can be controlled and automated. Using our plug-and-play Flex Link Cables, the Flex adds intelligence to devices not IP-enabled by connecting them to the automation and control software of your choice. In addition, the Flex supports HTTP for web browser control from anywhere on the network.

flc-sl-485_fxwf-copyFlex Link Serial cables allow serial devices to be controlled with the Flex family of products. With the Flex Link RS485 Serial cable, the Flex Link RS232 Serial cable, and the Flex Link RS232 Mini Jack cable, RS232 and RS485 serial devices can be simply connected to the network for seamless control.

The Flex Link RS232 Serial cable and the Flex Link RS232 Mini Jack cable provide connections to devices with different physical RS232 connectors. The Flex Link RS232 Serial cable features aflc-sl-232_fxip standard DB9 connector that allows for swapping pins in setup. The Flex Link RS232 Mini Jack cable utilizes a 3.5 mm mini jack, allowing for direct connections to 3.5 mm mini jack RS232 ports and serial inputs on many common TVs and other AV devices.

Documents available for download:


Configurable using hardware jumpers and through Flex integrated web server or software API

Serial Outputs

Supports standard 8 data bit serial.

-Full support for Tx, Rx, CTS, RTS, DTR, and DTS signals.
-Bi-directional communication with hardware handshaking.

RS232 Mini Jack:
-Full support for Tx, and Rx signals.
-Bi-directional communication with no hardware handshaking.

-Four wire (full duplex) and Two wire (half duplex) capable.

Serial Configurations

Flex Link Serial cables are configurable with the following settings:
-Baud Rate: 300 baud to 115200 Kbaud.
-Parity: Even, Odd, or None.
-Stop bits: 1 or 2.RS232:
-Flow Control: Enable hardware RTS/CTS flow control.
-Gender: Allows configuration of cable gender. Allows for null modem and straight through cable creation.

RS232 Mini Jack:
-Gender: Allows for null modem and straight through cable creation.
-Duplex: full duplex or half duplex.
-RS422 compatible.


3.5 mm four conductor jack to Flex Link Port on iTach Flex devices.

-Male DB9 connector with locking screws.
-Includes gender changer.
-5 ft (1.5 meters) cable.

RS232 Mini Jack:
-Male 3.5 mm mini jack stereo connector.
-6.5 ft (2 meters) cable.

-5 pin screw terminal block.
-Connector at 90° angle for easy fit.
– 5 ft (1.5 meters) cable.

No power supply required.


RS232: 2.2” x 1.28” x .6”
RS232 Mini Jack: 2.48” x .79” x.28”
RS485: 1.5” x 1.2” x .7”


Two year limited warranty
Support available via phone, email, and web portal
3 Integrated contact closure relays w/ tran­sient volt­age sup­pres­sion
Pluggable screw ter­mi­nal 24V AC/DC@.5A N.O. con­tact
Allows for switching of low voltage wiring

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