This chapter provides some examples of the configurations available with the DPLEX option products. The configurations documented are examples only and do not necessarily reflect what may be installed at a particular site. The term “cascaded set” refers to a set of DPLEX pipes (two or more) that are cabled together to provide higher performance imagery capabilities than a single pipe can provide.
The basic connection rules for the DPLEX LVDS cables are as follows:
Each cascaded set of DPLEX pipes must be connected with LVDS cables in a daisy-chain fashion.
The digital video out connector on the primary DPLEX pipe does not send video out to another DPLEX.
DPLEX pipes with LVDS cables connected in a ring configuration are not supported.
If you need more information on LVDS functions, see the IEEE 1596.3 scalable coherent interface (SCI) LVDS specification.
All the DPLEX pipes in a cascaded set must be genlocked for proper functionality. The DG5 genlock in and loop through connectors on the assembly provide these links.
There are two probable sources for the DPLEX cascade genlock signal to originate:
The green or H sync connector from the (primary) output pipe in the DPLEX cascade.
An external genlock source, often called “house sync” coming into the Onyx2 system.
In either case, the last DPLEX in the genlock daisy chain must always have its genlock loop through connector (located on the DG5 part of the assembly) terminated with a 75 ohm BNC terminator. The exception to this rule is for DPLEX cascades of more than four pipes; see “Requirements for Genlocking More than Four Pipes”.
 | Note: Always use the minimum length of cable necessary to make the genlock connections. Excessive cable lengths (especially with lower quality cable) can cause attenuation problems and result in improper genlocking. See the information in the next section, “Requirements for Genlocking More than Four Pipes” for larger configuration cabling requirements. |
Getting the sync signal from the analog (13W3) connector on the DPLEX output pipe requires use of a special 13W3 cable (p/n 018-0634-002). Always use the light color “H” sync connector (on 018-0634-002) to set the internal genlock.
 | Caution: There are two versions of the monitor adapter cable (018-0634-002 in Figure 2-2) in the field. This cable is also known as a 13W3M to 13W3F 2BNC cable. You should always use the -002 version of this cable with DPLEX. If you encounter a situation where you must use 018-0634-001, note that in the -001 cable assemblies the horizontal/vertical pinouts are reversed. If you are using the -001 version, you must use the V Sync connector as the genlock input. All the instructions in this manual assume that you are using 018-0634-002. |
You can use the ircombine graphical interface software to configure the DPLEX boards. See Chapter 3 for more information.
You can also use the /usr/gfx/setmon command option to properly set genlock. The -g argument to /usr/gfx/setmon enables external genlocking (video clocking). See the setmon(1G) man page for details on all the /usr/gfx/setmon options.
In configurations greater than four pipes it is highly recommended that the genlock sync function be distributed from the source (house sync or primary pipe) using a “star” video distribution amplifier (also known as a line driver or splitter). Failure to use a video distribution amplifier with a cascade of more than four pipes may cause video sync distortion. Need for a video distribution amplifier is influenced by the distance between
pipes in a cascade and the quality of the cables used for genlocking.
Swap ready cabling must be connected properly to all pipes in the DPLEX cascade. If swap ready is not properly regulated, the DG5 buffers may transfer video data at an incorrect interval. Figure 2-1 shows the DG5 and DPLEX assembly connectors.
For a two-pipe DPLEX cascade, just connect the two swap ready connectors together. For more than two pipes, use “T” connectors to make the connections. No terminators are used with swap ready cabling.
To properly cable a two-pipe DPLEX cascade, you need the following cables and connectors:
Two 75 ohm genlocking cables with female BNC connectors at each end. The length of these cables is determined by the distance between the pipes and in some cases by the distance from an external genlock source. A 75 ohm genlock terminator is also required.
Note: If the installation requires use of an external genlock (house sync), determine what connector is required for the external equipment. One 75 ohm cable with female BNC connectors at each end is required for swap ready signaling between the pipes.
When you have all the cables, follow these steps to cable a two-pipe DPLEX cascade.
Determine if you will set genlock for the DPLEX cascade externally (house sync), or internally from the primary (lowest number) DPLEX pipe.
For an external genlock signal, connect the external genlock line (house sync) to the genlock in connector on the first DG5/DPLEX board set in the cascade. This is shown as pipe 0 in Figure 2-3.
For internal genlock, connect the 018-0634-002 cable to the pipe 0 13W3 monitor 1 connection on the DG5 board, and cable the H sync connection to the genlock input of pipe 0. See Figure 2-2 for an example.
Connect a 75 ohm genlock cable from the genlock loop through connector on pipe 0 to genlock in on pipe 1.
Terminate the genlock loop through connector on pipe 1 with a 75 ohm terminator.
Connect the two pipe's swap ready connectors with a 75 ohm cable. No terminators are used with swap ready.
Plug the 40-pin digital video cable from the digital video out (top) connector on pipe 1 to the digital video in connection on pipe 0.
Connect the DPLEX analog display cable to the 13W3 monitor connector on DPLEX pipe 0 (the rightmost 13W3 connector). This is the monitor that will receive the DPLEX cascaded output.
Connect the system default monitor to the 13W3 monitor connector 0 on pipe 0. The connector is located at the top of the DG5.
Use the following instructions to properly connect a three-pipe version of the DPLEX cascade. To properly cable the DPLEX cascade, you need the following cables and connectors:
Three 75 ohm genlock cables with female BNC connectors at each end. The length of these cables is determined by the distance between the pipes and possibly by the distance from an external genlock source. A 75 ohm genlock terminator is required.
Note: If your equipment requires use of an external genlock (house sync), determine what connector is required for the external equipment. Two 75 ohm cables with female BNC connectors at each end are required for swap ready signaling between the pipes. You will also need a BNC “T” connector with one female and two male connectors.
When you have all the cables follow these steps to cable a three-pipe DPLEX cascade.
Determine if you will set genlock for the DPLEX cascade externally (house sync) or internally from the primary (lowest number) DPLEX pipe.
For an external genlock signal, connect the external genlock line (house sync) to the genlock in connector on the first DG5/DPLEX board set in the cascade. This is shown as pipe 0 in Figure 2-4.
For internal genlock, connect the 018-0634-002 cable to the pipe 0 13W3 monitor 1 connection on the DG5 board, and cable the H sync connection to the genlock input of pipe 0. See the two-pipe version in Figure 2-2 for an example.
Connect a 75 ohm genlock cable from the genlock loop through connector on pipe 0 to genlock in on pipe 1.
Connect a 75 ohm cable from the genlock loop through on pipe 1 to the genlock in on pipe 2.
Attach the 75 ohm terminator to the genlock loop through connector on pipe 2.
Attach the swap ready “T” connector to a swap ready input on a DG5 in the cascade. Figure 2-4 shows it attached to pipe 0, but any pipe may be used.
Connect the swap ready cables from the other two pipes to the “T” connector.
Connect a digital video (LVDS) cable from the digital video out connector on pipe 2 to the digital video in on pipe 1.
Attach a digital video cable from the digital video out connector on pipe 1 and route it to the digital video in connector on pipe 0.
Connect the DPLEX analog display cable to the 13W3 monitor connector on DPLEX pipe 0 (the rightmost 13W3 connector). This is the monitor that will receive the DPLEX cascaded output.
Connect the system default monitor to the 13W3 monitor connector 0 on pipe 0. The monitor 0 connector is located at the top of the DG5.
Connecting a four-pipe DPLEX cascade is an extension of the procedure for cabling a three pipe cascade. Use the following instructions to connect a four-pipe version of the DPLEX cascade. To properly cable the DPLEX cascade, obtain the following cables and connectors:
Four 75 ohm genlock cables with female BNC connectors at each end. The length of these cables is determined by the distance between the pipes and in some cases by the distance from an external genlock source. A 75 ohm genlock terminator is also required.
Note: If the installation requires use of an external genlock (house sync), determine what connector is required for the external equipment. Three 75 ohm cables with female BNC connectors at each end are required for swap ready signaling between the pipes. You will also need two BNC “T” connectors with one female and two male connectors.
When you have all the cables available, use the following steps and figures to cable a four-pipe DPLEX cascade.
Determine if you will set genlock for the DPLEX cascade externally (house sync) or internally from the primary (lowest number) DPLEX pipe.
For an external genlock signal, connect the external genlock line (house sync) to the genlock in connector on the first DG5/DPLEX board set in the cascade. This is shown as pipe 0 in Figure 2-5.
For internal genlock connect the 018-0634-002 cable to the pipe 0 13W3 monitor 1 connection on the DG5 board, and cable the H sync connection into the genlock input of pipe 0. Figure 2-6 shows an example.
Connect a 75 ohm cable from the genlock loop through connector on pipe 0 to the genlock in connector on the second DG/DPLEX assembly (shown as pipe 1 in Figure 2-5). Repeat this procedure for the third and fourth pipes.
Terminate the final pipe with a 75 ohm terminator. See Figure 2-5 for an example.
Attach an LVDS cable from digital video out on pipe 3 to digital video in on pipe 2.
Connect an LVDS cable from digital video out on pipe 2 to digital video in on pipe 1.
Connect an LVDS cable from digital video out on pipe 1 to digital video in on pipe 0. Figure 2-6 shows the four DPLEX pipes with the LVDS and genlock cables connected.
Connect swap ready cables to each of the four pipes using the “T” connectors on two of the pipes. Figure 2-7 shows an example. No terminators are used with swap ready.
Connect the DPLEX analog display cable to the 13W3 monitor connector on DPLEX pipe 0 (the rightmost 13W3 connector). This is the monitor that will receive the DPLEX cascaded output. Figure 2-7 shows the four pipes with all cables connected using internal genlock. Figure 2-8 shows the four pipes with all cables connected using external genlock (house sync).
Connect the system default monitor to the 13W3 monitor connector 0 on pipe 0. The monitor 0 connector is located at the top of the DG5.
The cabling for a six-pipe DPLEX follows most of the same cabling concepts used to connect a four-pipe cascade. The significant exception is the use of a star video distribution amplifier (also called a line driver or splitter) to make all the genlocking connections.
Use the following instructions to connect a six-pipe version of the DPLEX cascade. To properly cable the DPLEX cascade you will need the following cables and connectors:
A one-to-eight video distribution amplifier. A minimum 300 MHz video bandwidth device is recommended. Note that the loop output internal termination jumper must be set to terminate the genlock loop.
Six 75 ohm genlock cables with female BNC connectors at each end. The length of these cables is determined by the distance between the pipes and by the distance from the video distribution amplifier source.
Note: If the installation requires use of an external genlock (house sync), determine what connector is required for the external equipment. Five 75 ohm cables with female BNC connectors at each end are required for swap ready signaling between the pipes. You also need four BNC “T” connectors with one female and two male connectors.
When you have all the cables available, use the following steps and figures to cable a six-pipe DPLEX cascade.
Determine if you will set genlock for the DPLEX cascade externally (house sync) or internally from the primary (lowest number) DPLEX pipe.
For an external genlock signal, connect the external genlock line (house sync) to the in connector on the video distribution amplifier.
For internal genlock connect the 018-0634-002 cable to the pipe 0 13W3 monitor 1 connection on the DG5 board, and cable the H sync connection into the video distribution amplifier.
Connect the six genlock cables from the video distribution amplifier to the genlock in connector on each DG5 DPLEX assembly (see Figure 2-9). Be sure the amplifier's loop output internal termination jumper is set to terminate the genlock loop.
Attach an LVDS cable from digital video out on pipe 5 to digital video in on pipe 4. Repeat this procedure on the next four pipes, note that the digital video out connector on the primary pipe (pipe 0 in the illustration) is not terminated.
Connect swap ready cables to all the pipes using “T” connectors as applicable. No terminators are used with swap ready. See Figure 2-9 for an example.
Connect the DPLEX analog display cable to the 13W3 monitor connector on DPLEX pipe 0 (the rightmost 13W3 connector). This is the monitor that will receive the DPLEX cascaded output.
Connect the system default monitor to the 13W3 monitor (connector 0 on pipe 0). The monitor 0 connector is located at the top of the DG5.
The cabling for an eight-pipe DPLEX follows most of the same cabling concepts used to connect a four-pipe cascade. The significant exception is the suggested use of a star video distribution amplifier (also known as a line driver or splitter) to make all the genlocking connections.
Use the following instructions to connect an eight-pipe version of the DPLEX cascade. To properly cable the DPLEX cascade you will need to obtain the following cables and connectors:
A one-to-eight video distribution amplifier. A minimum 300 MHz video bandwidth device is recommended. Note that the loop output internal termination jumper must be set to terminate the genlock loop.
Eight 75 ohm genlock cables with female BNC connectors at each end. The length of these cables is determined by the distance between the pipes and by the distance from the video distribution amplifier source.
Note: If the installation requires use of an external genlock (house sync), determine what connector is required for the external equipment. Seven 75 ohm cables with female BNC connectors at each end are required for swap ready signaling between the pipes. You also need six BNC “T” connectors with one female and two male connectors.
When you have all the cables available, use the following steps and figure to cable an eight-pipe DPLEX cascade.
Determine if you will set genlock for the DPLEX cascade externally (house sync) or internally from the primary (lowest number) DPLEX pipe.
For internal genlock connect the 018-0634-002 cable to the pipe 0 13W3 monitor 1 connection on the DG5 board, and cable the H sync connection into the video distribution amplifier.
For an external genlock signal, connect the external genlock line (house sync) to the in connector on the video distribution amplifier.
Connect the eight genlock cables from the video distribution amplifier to the genlock in connector on each DG5 DPLEX assembly (see Figure 2-10). The termination jumper must be set to terminate the genlock loop on the amplifier.
Attach an LVDS cable from digital video out on pipe 7 to digital video in on pipe 6. Repeat this procedure on the next six pipes, note that digital video out connector on the primary pipe (pipe 0 in the illustration) is not terminated.
Connect swap ready cables to all the pipes using “T” connectors as applicable. No terminators are used with swap ready. See the example in Figure 2-10.
Connect the DPLEX analog display cable to the 13W3 monitor connector on DPLEX pipe 0 (the rightmost 13W3 connector). This is the monitor that will receive the DPLEX cascaded output.
Connect the system default monitor to the 13W3 monitor (connector 0 on pipe 0). The monitor 0 connector is located at the top of the DG5.
This section provides information on cabling requirements when using more than one DPLEX cascade in an Onyx2 system. You may have a requirement for two or three DPLEX cascades to drive images to separate displays or projectors. In most cases you have a single application driving these displays and the cascades need to be genlocked together, (in some cases a video distribution amplifier may be required). The swap ready cabling must also be connected between the DPLEX cascades when they are all operating in concert. See Figure 2-11 and Figure 2-12 for example cabling configurations.
Basic cabling guidelines for multiple DPLEX cascades are:
Each DPLEX cascade must have a DPLEX analog display output cable, (this cable should be connected to the lowest number pipe in the DPLEX cascade).
Digital video cables should be connected only between the pipes in an individual DPLEX cascade (not between cascades).
Genlock all the individual DPLEX cascade boards together if they are using the same application software for a common purpose.
Connect the individual DPLEX cascade boards together with swap ready cables unless they are running independent (different) applications.
| Note: In some cases the Onyx2 system may be configured with multiple DPLEX cascades running independent (different) applications. In this instance, the DPLEX cascades are not connected together with swap ready or genlock cabling. The swap ready and genlock cabling is connected only between the DPLEX board assemblies in each individual cascade. |
Figure 2-11 shows two DPLEX pairs cabled to run the same application. Internal genlocking is shown in the example figure.
Figure 2-12 shows three DPLEX pairs cabled to run the same application. External genlocking is shown in the example figure.
