This section describes the DG5 main display board, VIO5H video option connector panel board, and the Serial Digital Video Output from Graphics (GVO) option board. The information is mainly concerned with the DG5 board and options.

Table 4-1 summarizes DG5 configurations.

Figure 4-1 shows connectors on the DG5-8 option board with the VIO5H daughterboard.

Figure 4-1. DG5-8 Board Location

Note that the DG5-8 option requires the VIO5H board. Notice also that the DG5 board always goes in the rightmost graphics board slot in the Onyx2 deskside graphics system, next to the graphics BaseIO board assembly.

The display generator subsystem requests and receives digital frame buffer pixel data from the RM/TM board. The DG5 board processes the pixel data and streams it onto the video packet bus. The DG5 board also handles all pixel clocking and genlocking and cursor display functions, and performs the role of the functional manager.

From the packet bus, processed video can be sent to one of the video output channels, or to the NTSC or PAL encoder (VTR channel). The video output controller supplies data to a 3-DAC array that feeds the analog RGB signals out. NTSC or PAL circuitry signals come from the VOC through encoder and field buffer RAMs.

The default monitor resolution supported by the InfiniteReality2 board set and SuperWide monitor is 1920 x 1200 at 66 Hz. The maximum output bandwidth is about 300 Mpix/sec. With two monitors, each 1920 x 1200 at 66 Hz, speed is about 188 Mpix/sec. If you connect more than two monitors, you must use a combination of lower and higher resolution monitors that is within the limit of 300 Mpix/sec.

Table 4-2 summarizes DG5-8/VIO5H connectors.

The DG5 board always goes in the rightmost graphics board slot in the Onyx2 deskside graphics system. Figure 4-2 shows the DG5 board without options (DG5-2).

Figure 4-2. DG5 Graphics Panel Connections (Without Options)

The VIO5H video option connector panel board mounts on the DG5-8 and outputs five high-resolution video channels. Figure 4-3 shows connectors on the panel for the DG5-8 option board with the VIO5H daughterboard.

Figure 4-3. DG5-8 Board With Optional VIO5H

Figure 4-4 shows the 13W3 pinouts for the monitor connectors on the DG5/VIO2 I/O panel. Each 13W3 uses the same pinout pattern.

Figure 4-4. DG5/VIO5H 13W3 Connector Pinout

In the A1, A2, and A3 connectors, the center conductor carries the video signals. The outer conductors of the A1, A2, and A3 connectors are their video returns, which are tied to the monitor's grounded chassis.

The graphics-to-video option (GVO) daughterboard comes assembled with the DG5 and is designed to provide direct output from graphics to video in real time.

The GVO daughter board has two CCIR601 connectors implemented as BNCs. Figure 4-5 shows connectors on the panel for the DG5-2 board with an optional GVO daughterboard combination.

Figure 4-5. DG5 and Optional GVO Connectors

Three cable options are offered for the DG5:

Figure 4-7 shows the standard cable and adapters.

Figure 4-7. 13W3 Cable Options

The graphics BaseIO assembly (IO6G) is a graphics-oriented set of interface connectors that comes standard with each Onyx2 deskside system. The connectors on the BaseIO include support for Ethernet, two keyboards, analog and digital audio, serial and parallel connectors, and others. The following sections provide location and pinout information for these connectors.

Figure 4-8 identifies all the connectors on the graphics BaseIO panel.

Figure 4-8. BaseIO (IO6G) Panel and Connectors

A single 10/100 Base-T Ethernet connection is provided on the BaseIO panel. Figure 4-9 shows the location and pinouts of the connector.

Use of additional 10/100 Base-T Ethernet connectors is possible with an optional XIO board.

There are two LEDs on the RJ-45 Ethernet; the top (green) LED lights only when the system is transmitting. The bottom (yellow) LED lights whenever it sees any packet on the wire. This includes packets not destined for your system.

Just above the RJ-45 Ethernet connector is a set of four LEDs. They have the following functions:

Table 4-3 shows the cable pinout assignments for the Ethernet 100 Base-T Ethernet port.

The BaseIO board supports one IEEE 1284-C 36-pin parallel port connector. The location of this connector is shown in Figure 4-10. Pinouts for the parallel port connector are listed in Table 4-4.

Suitable cables for use with this port should be marked “IEEE 1284-compliant.” For most parallel printers, you can use a cable with an IEEE 1284-C connector at the Onyx2 end and an IEEE 1284-B connector (also known as a Centronics style) at the printer end.

Figure 4-10. Parallel Printer Port Location

Each Onyx2 deskside workstation comes with two keyboard and mouse connectors.

Figure 4-11 shows the location of the connectors and their pinouts.

There are two sets of keyboard and mouse connectors on the rear of the graphics BaseIO panel provided with each Onyx2 system. If your system uses one keyboard and mouse, attach them to the primary keyboard and mouse connector ports. These primary ports are located on the right side of the BaseIO panel.

You can plug the keyboard and mouse cables directly into the BaseIO panel. However, in cases where your monitor, keyboard, and mouse are located away from the system, use the included extension cable. Each system comes with a 24-foot (7.3 m) keyboard and mouse extension cable.

Figure 4-11. Keyboard and Mouse Locations and Pinouts

Table 4-5 shows the cable pinout assignments for the keyboard port.

Table 4-6 shows the cable pinout assignments for the mouse port.

Table 4-7 shows the cable pinout assignments for the line-level audio (RCA-type) ports.

You may connect audio equipment to the line-level inputs and outputs using standard shielded RCA type connectors (see Figure 4-12). For best results, always route these analog signal cables away from power cords.

The right channel is color-coded red, and the left channel is white.

Figure 4-12. Analog Stereo Port Locations

The Onyx2 deskside system comes with four standard 9-pin serial connectors. The connectors are all male and use a PC-compatible signal assignment. Figure 4-13 shows the connector locations and pin assignments.

The RS-232 standard recommends the use of cables no longer than 50 feet (15.2 meters). This standard should also be applied to RS-422 serial use. Longer runs introduce a greater possibility of line noise occurring. This can affect data transmission and cause errors. For cable runs longer than 50 feet (15.2 meters), use an appropriate extender device.

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Note: Do not run cables through areas that are electrically noisy, such as areas where large electric motors, welding apparatus, or X-ray machines operate. Bury outside wiring in conduit to prevent lighting strikes from damaging the system.

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Figure 4-13. RS-232/RS-422 Serial Connectors

Just above serial port two are the single-jack ADAT optical connectors (see Figure 4-14). These ports can be used with multi-track digital audio recording input and output devices.

These connections support optical input and output of eight channels at up to 24 bits and up to 48 Hz sample rates.

Use standard plastic fiber interconnecting cables. You will need two cables; one for input and one for output. The Onyx2 system ships with connector cover plugs over the input and output ports. These must be removed before using the optical connectors. Retain these dust covers for use when shipping or if you discontinue ADAT use.

Figure 4-14. Optical Digital Audio Interface

Figure 4-15 shows the loopthrough and digital audio connectors.

The AES and EBU digital audio connectors support 75-ohm signals at a nominal 1.0 volts (peak-to-peak) signal level. You should use 75-ohm coaxial cable with standard BNC connectors for interconnections (such as with digital video recorders).

Some equipment supporting AES and EBU digital audio signals uses 3-pin XLR connectors that support balanced 110-ohm signals. To successfully interconnect with equipment of this type, install a digital audio “BALUN” adapter at the equipment's XLR connector points. The BALUN adapter connects the 3-pin XLR to a 75-ohm BNC connection. The 75-ohm coaxial cable then connects between the Onyx2 system and the BALUN adapter.

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Note: 110-to 75-ohm digital audio BALUN adapters come in male and female versions. You need one of each type when using both the input and output AES and EBU connectors.

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Figure 4-15. Loopthrough and Digital Audio Connectors

A single-ended external 68-pin SCSI connector is provided on the BaseIO panel (see Figure 4-16). This connector supports both Ultra SCSI and SCSI-2 devices. The connector is always single-ended.

Optional additional SCSI ports can be implemented using XIO option boards. See the section “Optional Interfaces” for additional information.

The hyphen preceding a signal name indicates that the signal is low. Note that 8-bit devices that connect to the P-cable leave these signals open: -DB(8), -DB(9), -DB(10), -DB(11), -DB(12), -DB(13), -DB(14), -DB(15), -DB(P1). All other signals are connected as shown in Table 4-8.

Figure 4-16. 68-Pin Single-Ended SCSI Connector

The Onyx2 BaseIO panel uses a 30-foot (9.1 m), three-connector bundled cable to connect a microphone and a pair of speakers (included with your Onyx2 system).

Figure 4-17 shows the connection points on the rear of the speakers.

Figure 4-17. Cable Connection Locations on the Speakers

The analog speaker connector plugs into the BaseIO board and the other end goes to the analog speaker plug. The analog speaker power connector goes from the BaseIO to the middle plug on the back of the right speaker (see Figure 4-18).

The microphone connector goes from the BaseIO panel and you plug in your (included) microphone at the other end (look for the microphone logo on the connector). Note that there is also a 10-foot (3 m) “speaker only” cable included with your Onyx2 system. This 10-foot cable does not supply a microphone plug and limits where you may place the speaker set.

Figure 4-18. Speaker and Microphone Connections to the BaseIO

Optional interfaces you may wish to use could include

Every deskside system comes ready to be plugged into a standard Ethernet network using an 8-pin RJ-45 style connector.

Optional XIO interface boards install in the rear of the system. You may have up to four optional XIO boards in the Onyx2 deskside workstation.