GTIO CARDS

The Giga-Transceiver Input/Output (GTIO) cards are used to interface analogue and digital signals between the RTDS Simulator and an external device. They have been developed for use with the PB5 card and are driven from the GT optical ports provided on the PB5. To allow greater freedom of connection and flexibility, the cards have been designed to allow a daisy-chain connection between them. Up to eight cards can be daisy chained.

The physical link between the PB5 and the GTIO cards is provided by a fiber optic cable with industry standard LC connectors. The link has a bandwidth of 2 Gbit/s and allows the GTIO cards to be located remotely from the RTDS Simulator cubicles.

The GTIO cards are also compatible with the GPC card.

 

GTDI – Giga-Transceiver Digital Input Card

64 optically isolated digital channels

Screen Shot 2014-10-24 at 12.34.29 PMThe GTDI provides optically isolated digital input to the real time simulation from external equipment. The card has a total of 64 optically isolated digital channels. These can be used in either regular or small timestep simulations running on the PB5 card.

The GTDI input is current driven (~10 mA), allowing a wide range of input voltages to be connected to the card by providing the appropriate value of current limiting resistor.

The GTDI is normally mounted on a DIN rail in the rear of the RTDS Simulator cubicle. Optionally a longer optical cable can be provided to allow the card to be located remotely (e.g. in a control system cubicle). A single +24 volt power supply signal is required to power the card.

The GTDI card has also been designed to include all the functionality of a DITS (digital input time-stamp) card.

 

GTDO – Giga-Transceiver Digital Output Card

64 optically isolated digital channels

GTDOThe GTDO provides optically isolated digital output from the simulation to external equipment. Outputs can be sent from either a regular or small timestep simulation running on the PB5 card.

The GTDO card includes 64 optically isolated digital output channels which are arranged into two banks of 32 channels each. Each bank of 32 channels may be operated at a different voltage level in the range of +5V to +24Vdc. External power supplies are required to provide the output voltage source.

Like the GTDI, the GTDO is normally located on a DIN rail in the rear of the cubicle, but can also be located remotely. A single +24 volt power supply signal is required to power the card.

The GTDO card has also been designed to include all the functionality of a DOTS (digital output time-stamp) card.

 

GTAO – Giga-Transceiver Analogue Output Card

12 optically isolated analogue channels (16-bit D/A)

Screen Shot 2014-10-24 at 12.36.44 PMThe GTAO provides optically isolated analogue output from the simulation to external equipment. Outputs can be sent from either regular or small timestep simulations running on the PB5.

Special care has been taken in the design of the GTAO to provide the communication bandwidth required for small timestep applications.

The GTAO card includes twelve analogue output channels with an output range of +/− 10 volts. The 16-bit D/A converters provide a wide dynamic range. This is often required when providing measured current signals to protection devices.

When operating with a regular timestep simulation, the GTAO card can provide oversampling of the output at 1.0 µs intervals.

Like the other GTIO cards, the GTAO is normally located on a DIN rail in the rear of the cubicle, but can also be located remotely. A single +24 volt power supply signal is required to power the card.

GTAI – Giga-Transceiver Analogue Input Card

12 optically isolated analogue channels (16-bit A/D) with differential

Screen Shot 2014-10-24 at 12.38.24 PMThe GTAI provides optically isolated analogue input from external equipment to the simulation. The GTAI card includes 12 analogue input channels with each channel configured as a differential input. The input range is +/− 10 volts. 16-bit A/D converters are used on the GTAI card. All 12 analogue channels are sampled synchronously with new samples sent to the processor card every 6.0 micro−seconds.

Like the other GTIO cards, the GTAI is normally located on a DIN rail in the rear of the cubicle, but can also be located remotely. A single +24 volt power supply signal is required to power the card.

Download the GTIO cards product information sheet.

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