Device Details. Clear-Com ProGrid PG8/PG16-AUDIO-FX

6 Device Details

6.1 Fiber Optic Connection

The ProGrid Signal Transport Solution uses a digital Time Division Multiplex technology (TDM) with a fiber channel based 8B10B-NRZI-coding. Static time slots guarantee the synchronous transmission of all channels at any time with no demand for dynamic bandwidth. All signals attached to the audio, video, word clock and auxiliary ports of the device are transmitted simultaneously on one fiber. The second fiber of one LINK-Interface is used to receive data.

The second LINK-Interface has the same features as the first; therefore one of the LINK-Interfaces can always be used for redundancy.

6.2 A/D and D/A Converter

24-bit converters supporting sample rates of 44.1, 48, 88.2, 96, 176.4, 192 kHz ensure the high-quality conversion of analogue audio signals.

6.3 Analog Inputs

The microphone inputs include preamps with selectable gain between -4 dB to 66 dB in analogue 1 dB steps

Phantom Power (+48V) can be activated individually on each input. The maximum input level is +22 dBu.

The line inputs gain controls can be individually adjusted in four steps of maximum input level 27 dBu, 22 dBu,

18 dBu and 8 dBu.

6.4 Analog Outputs

The outputs gain controls can be individually adjusted in four steps of maximum output level 22 dBu, 18 dBu, 12 dBu and 8 dBu.

6.5 SANE Ports

All FX units are equipped with two RJ45 200MBit SANE Ports for 64 channels synchronous audio + 100MBit

Ethernet.

6.6 RS485 Auxiliary Ports

The auxiliary ports provide four RS485 interfaces to establish a maximum of four half-duplex or two full-duplex connections between the devices. A wide range of bi-directional and unidirectional standards can be connected, such as RS485, CAN-Bus (bi-directional), or RS422, DMX, MIDI (unidirectional). The interfaces will sense automatically whether they send or receive control data. OPTOCORE CONTROL software is used for setting the destination of each interface.

6.7 Word Clock

All units are equipped with a Word Clock IN and OUT. Word Clock is also transmitted via the fiber and SANE Ports.

In network configurations no extra BNC cable is needed. The PG16/PG8-FX units are equipped with an internal, high quality and extremely low jitter word clock. Any PG16/PG8-FX can act as master to pass the word clock to further ProGrid or SANE units or other devices. The word clock is available at the word clock OUT BNC-connector of this device. The Word Clock IN is terminated internally, so that no further external termination at the Word Clock Out is needed to avoid cable reflections.

13 PG16-FX and PG8-FX User Guide