Arcom Controllers RC210 (M2561 CPU) firmware `v7.636`

Arcom Controllers · Released May 1, 2019 · First seen Sep 9, 2026

v7.636 is not the latest firmware for the Arcom Controllers RC210 (M2561 CPU): the current version is v8.0543 (January 7, 2024). Go to v8.0543

In short — summary by updatemystuff.com

Automatic ISD Type detection removes RCP configuration need; fixes Kenwood remote base programming delays.

Controller now auto-detects proper ISD IC type without requiring RCP, preventing corruption
New *70072 Interrogate command verifies which ISD IC type (4 or 5) is installed
Fixed long programming delay when using Kenwood TM-271/281/v7/g707 remote base

Written from Arcom Controllers's release notes, which are printed in full below.

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Note: This firmware version requires RCP 7.63 Added capability to allow the controller to automatically determine and select the proper ISD Type.

You no longer need to rely on RCP for that.

This eliminates the possibility of corrupting the ISD Speech IC programming.

For those who want to make sure the correct selection was made, there is an Interrogate command:

70072 Controller will ID either Type 4 or 5 depending which ISD IC is installed.

Also corrected a long delay that was introduced when using a Kenwood TM-271/281/v7/g707 remote baseand programming it.

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