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1 1 Audio In 1 Box Overview. The Box is part of the S:Range (Simple, Smart, Stand Alone) family of products. It is a small, inexpensive, simple to use 2 input stereo audio switcher with audio gain control and faders that can be in conjunction with control processors or directly connected to any control panel in the CommBox range. Like all products in the S:Range, it can optionally be addressed so as to allow up to 15 S:Range units to be used on the same control bus. The unit operates from a 12 volt DC plugpack. It can also supply power to, or be powered from, the. Although intended primarily to add volume control capabilities to projectors, the Box is very versatile. Its two-input switch allows a Box to switch between HDMI audio output from a projector and analog audio directly from a wallplate. Several AVBox units can be linked together to form a multi-room AV system. Up to 15 can be driven from a single serial line, either from a control panel or from a processor serial port. It's assumed you already know how to program a Joey or similar control panel. This manual will concentrate on how to connect the Box but includes a brief example of programming a Joey to control it. Box manual. Page - 1 -

2 2 Example 1 - a typical standalone projector audio installation. Audio In 1 GND Data +12V IR Output 2 IR Output 1 Progm Port SK9 SK8 SK4 SK3 SK2 PIR Port Pin 4 - Sense Pin V RS232 Port Pin 4 - TxD Pin 6 - CTS SK7 SK6 SK5 PIR RS232 Port 2 RS232 Port 1 SK1 PCB0241C Joey Panel Command Systems P/L Wallplate VGA Audio VGA HDMI Control panel programming notes The Box defaults to Input 1 and unity gain on powerup. This means that you only need to send AVBox ands from the keys. (The Box firmware is the same as that of the AVBox). You can use either pair of audio outputs via the 3.5mm jack or the screw terminal connector. Box manual. Page - 2 -

3 3 Example 2 integrating HDMI digital audio capability. Audio In 1 GND Data +12V IR Output 2 IR Output 1 Progm Port SK9 SK8 SK4 SK3 SK2 SK7 SK6 SK5 SK1 Projector HDMI in PIR Port Pin 4 - Sense Pin V RS232 Port Pin 4 - TxD Pin 6 - CTS PIR RS232 Port 2 RS232 Port 1 PCB0241C Joey Panel Command Systems P/L Wallplate VGA Audio VGA HDMI Control panel programming notes For analog input you need to send Input 1. For HDMI audio send Input 2. Sending Input 3 or Input 4 will disconnect the audio. DO NOT USE the EQ ands (i.e. Bass, Treble) as they are not supported on the Box hardware. Box manual. Page - 3 -

4 4 Using the Advanced Features. Skip the following two pages unless you need these features. To use more than one Box on the same control bus you must set each to a unique address. If you have more than 15 S-range devices on the bus you can set a Box so that it will only respond to the new-format codes making 30 devices on the same bus possible. It's also possible, when using the new-format codes, to control each of the 4 audio outputs on each volume box separately. Accessing any of these features requires that you open the box. You will see the option pads on the right-hand end of the PCB as shown in the diagram. With a soldering iron, apply a solder bridge to the appropriate option pad pair. Setting the address is fairly obvious a solder bridge against a number adds that number to the address. Example to set the address to 5 you would solder bridge pad pairs 1 and 4. Bridging New codes only will cause the box to no longer listen to Standard codes, but require the use of the new-format codes from the library. New-format codes have integral addressing, meaning that you choose the address by the choice of codeset. 4 ch mode allows you to control the volume level of each of the four audio outputs, that is, L and R on the screw terminals and L and R on the 3.5mm jack, independently. 4 ch mode requires the use of the new format codes. Where would you use 4 channel mode? The next page shows an example separate control of four mono feeds, as might typically be used in a BGM system. Box manual. Page - 4 -

5 5 Example 3 - Four channel mode BGM system in a restaurant 12v DC in Tip- Rear L Ring Rear R Sleeve - Gnd Audio In 1 L and R paralleled on sources. You need to bridge the 4 ch mode pads as shown on the previous page, and use the new format codes from the library to access the separate fader ands. Box manual. Page - 5 -

6 6 Programming a Joey to control a Box In this example, we ll program the Up key for a Box in a standalone environment. In other words, we only have one Box. We ll assume you have already created the Up key graphically. 1. Leave the Box unmodified. This way we don t need to send an address code. 2. Open the Joey Editor and the file you wish to work with. 3. Select Edit Behaviour. 4. Double-Click the Up key. 5. Click Add. The Code Sequencer window will open. 6. In the Codeset drop-down, choose AVBox. 7. Choose Up from the Codes list. Click OK. Repeat items 4, 5 and 7 for all the keys that you wish to use to control the Box. Box manual. Page - 6 -

7 7 Programming to control multiple Boxes (or multiple s:range products) All s:range products share a on code protocol. They rely on a code from 0 to 15 being sent to them to match the address set on the option pads and so enable the remaining codes to operate the device. If you have just one box, you can leave it on address 0 and forget about addressing and the following section. However if you are connecting two or more s:range boxes you will need to know about how to handle addressing. Case 1 you have a separate menu/screen for the controls for each box. 1. On the key that opens each menu, send the address code for the box that s associated with that menu. This will enable the box for ands. 2. Within the menu, just send the required and, without the preceding address code. 3. If you want to disable accidental control of all items within a menu, send a 0 from the Back or Close key. This will disable the control of all boxes, except of course any box that s set to address 0. This method is preferred because it provides faster, smoother response, particularly when you are performing volume adjustments. Case 2 you are controlling more than one box from the same menu. 1. For each key in the menu, send the address code followed by the and code, as in the example shown here. 2. If you are sending a and such as a volume control, insert a begin loop after the address code. This will cause the address code to be sent when the key is first pressed, followed by the Up. In this way you get smoother, more responsive volume control operation. 3. Alternatively, use the new format codes. They have integral addressing. Box manual. Page - 7 -