Telestra FAQ

What are the main differences between the ACU2 and the ACE-RIU?

An overview of the similarities and differences are presented below for guidance. Please reference the ACU2 and ACE-RIU user guides for the full feature set and specifications to ensure the correct device selection for your application.

Feature ACE-RIU ACU2
Standalone Yes Yes
Rackmount Yes (3 per 1U) Yes (2 per 1U)
Legacy Cable Support DACS RIU T3 IRIS / Telestra ACU
Audio/Control Connectors 4 × DB-9 4 × DB-15
Audio Outputs 4 mono channels
(1 per connector)
4 stereo channels
(1 stereo pair per connector)
Audio Inputs 4 mono channels
(1 per connector)
4 mono channels
(1 per connector)
Audio Gain Control Hardware jumpers Software-controlled
Control Inputs 4 digital
(1 per connector)
12 digital or analog
(3 per connector)
Control Outputs 4 opto-isolated digital
(1 per connector)
4 opto-isolated digital
(1 per connector)
Serial Ports 2 × RS-422 2 × RS-422/RS-232