RME offers several Expansion Boards, that add more or other I/O ports to the internal cards of the Hammerfall, HDSP, HDSPe and DIGI96 series.
The OPTO-X replaces the standard coaxial MADI I/O of the HDSPe MADI FX by an optical MADI I/O.
The AI4S-192 AIO and AO4S-192 AIO add additional analog inputs and outputs of true studio quality to the HDSP 9632 and the HDSPe AIO.
The Word Clock Module WCM adds a word clock input and two outputs in professional quality to the HDSP 9632, HDSPe RayDAT and the HDSPe AIO.
HDSP 9632 / HDSPe AIO: One AI4S-192 AIO and one AO4S-192 AIO can be connected simultaneously, for a maximum of 6 analog inputs and outputs. One TEB can be connected to the internal ADAT ports. The WCM adds one word clock input and two outputs. All options can be used at the same time.
HDSP 9652: Up to two TEBs can be used simultaneously.
Hammerfall DSP Multiface / Digiface Multiface and Digiface use the Hammerfall DSP PCI card. This card has no internal inputs or outputs. Therefore no Expansion Boards can be used.
The OPTO-X is an alternative extension board for the HDSPe MADI FX triple MADI card with full functionality.
Like the standard extension board it comes with Word Clock I/O and a D-sub connector for MIDI and AES I/O.
The standard coaxial MADI I/O is replaced by an optical MADI I/O.
Using the OPTO-X the HDSPe MADI FX then has three optical MADI I/Os
1 x MADI I/O optical
1 x MIDI I/O via D-sub
1 x AES I/O via D-sub
These options for the HDSP 9632 and HDSPe AIO are analog expansion boards, designed as bracket with 4 stereo TRS jacks each. AI4S-192 AIO provides four servo-balanced inputs, AO4S-192 AIO provides four servo-balanced outputs. With this a maximum of 6 (including the stereo I/O of the card) inputs and/or outputs can be achieved.
The converters offer the same performance as the on-board stereo analog I/O of the HDSPe AIO: up to 192 kHz, balanced connection and the choice of three different reference levels, selected in the Settings dialog.
Both modules can be used single or in combination. The display of the channels in TotalMix changes accordingly.
Note: AI4S-192 and AO4S-192 (without the suffix AIO) do work only with the HDSP 9632. The current Expansion Boards with the suffix AIO work with both cards.
More information could be found in the manuals:
The Word Clock Module (WCM) provides a galvanically isolated word clock input and two word clock outputs (BNC connectors). Both outputs have their own driver stages, providing an extremely low jitter signal. A push switch activates 75 Ohms termination for the hi-impedance input. SteadyClock, part of the PCI card, guarantees an excellent performance in all clock modes. Its highly efficient jitter suppression refreshes and cleans up any clock signal, and provides it as reference clock at the two outputs.
Installation is done in a convenient manner using the supplied bracket. No PCI slot on the motherboard is required. The module is internally connected via a 10-pin connector and a flat ribbon cable to the PCI card. Thanks to several LEDs (power, termination, LOCK) and the highly integrated concept of installation, first operation and usage are simple even for the inexperienced user.
More information could be found in the HDSP 9632 WCM manual.