---
title: ZEC Adding ASI Outputs
slug: zixi-broadcaster-zec-current-version/zec-adding-asi-outputs
docTags:
createdAt: 2024-12-26T19:40:07.064Z
---
The ASI output uses an ASI card to take the transport stream from the Zixi Broadcaster and delivers it through the coax cable. The ASI card is not doing any processing, just moving it from the Zixi Broadcaster to the cable.
## To Create an ASI Output:
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In the ZEC Outputs page, click **+New Output**.
The **New output** window is displayed.
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Type in the unique identifier for this output in the **Output Name**.
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Select an** Input Stream** to be made available on this output from the drop-down list.
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Select the **Show in Matrix** check box to display this stream in the Matrix (see [ZEC Using the Matrix](docId\:OfxetHpsUO9EIMqpWFZEa)). Default: Selected.
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Select **ASI**.
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Specify the **Output parameters** (see [Output Stream Parameters Table](docId\:HpkSZ1tC8txOfQBqH-cMF) below).
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Click **OK**.
The new **ASI Output** with its settings is created and now appears on the screen.
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### Output Stream Parameters Table
| **Parameter** | **Description** |
| ----------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| ***Output Parameters*** | |
| **Card** | Select the ASI network card. Only the physical ASI cards that have been installed on the machine will appear in the drop-down list. |
| **Stuffing** | Select this checkbox to achieve CBR (constant bitrate) by padding the ASI stream with TS null packets. |
| **PLL** | Select this checkbox to enable a phase-locked loop. A phase-locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is related to the phase of an input signal. When selecting this option, the system will adjust the bitrate that is sent according to the fullness rate of the output buffer. |
| **Initial buffer time** | To avoid underflows, specify the output buffer size that will be filled before starting the transmission. |
| **Bitrate** | Specify the actual bitrate in kbps or the maximum stream bitrate in case of a VBR stream. |
| ***Enable Decryption*** | Select this checkbox to decrypt an encrypted stream. |
| **Decryption type** | If the stream has been encrypted, you can decrypt it through the output by selecting this checkbox and specifying the type of encryption that was used.
Select **Automatic** to decrypt a stream that has been encrypted using **Automatic** encryption.
Only if the stream has not been encrypted, select **None** (default).
**Important Notice: If the stream has been encrypted, you must decrypt it in the output.** |
| **Decryption key** | If the decryption type includes a key, enter the key to decrypt the stream during output. |