User Guide

AV inputs

When using Pearl Mini, we recommend using two video sources in up to two full HD channels simultaneously for best performance. However, you can connect up to three video sources to Pearl Mini in the following scenarios:

  1. One 1080p 30 fps channel configured with three layouts, one for each full HD video source without any scaling and make the video image fill the whole frame.
  2. Two 1080p 30 fps channels: one channel for a picture in picture switched program for HD recording at 1080p30 fps at 8 Mbps, and a second channel with duplicate content at a lower resolution of 720p30 fps at 2 Mbps for streaming that uses the first channel as the video source, see Add video sources or a channel as a source. The switched program can have up to three layouts: two that are picture in picture that includes your main camera and one other video source such as a document camera or a laptop with slides, and a third layout of your main camera.

Pearl Mini supports the use of many common signal converters and input adapters.

Pearl Mini Input Ports

Input port Qty Details

SDI1

1

Linear PCM audio/video input. Supports up to 3G-SDI signals.
HDMI™ 2 Linear PMC audio/video input, non-HDCP protected. DVI-I (using an adapter) is single link.
RCA2 2

RCA consumer line-level audio inputs function as a stereo pair (-10 dBV).

  • White = left
  • Red = right
3.5 mm2 1

Mic-level input to connect a passive or active stereo electret microphone (unbalanced)

XLR3

2

Combo XLR / TRS audio inputs operate as a stereo pair (left/right) by default.

  • XLR/TRS 1 = left
  • XLR/TRS 2 = right

You can configure the ports to operate as independent mono inputs using the Admin panel, see Configure audio ports for stereo or mono.

XLR inputs accept balanced and unbalanced, mic level and professional line level signals with a maximum of up to 12.3 VRMS, +24 dBu.

Mic-level (balanced) inputs supply optional 48 V phantom power across both XLR ports. See Enable or disable phantom power.

Connecting devices that are not designed for phantom power when phantom power is enabled on the XLR ports can seriously damage those devices. Always check the phantom power LED before connecting devices to the XLR ports. A direct box can be used to provide the correct mic-level signal to the XLR port and offers some isolation protection in case of accidental exposure to 48 V phantom power.

TRS3 2

Combo XLR / TRS audio inputs operate as a stereo pair (left/right) by default.

  • XLR/TRS 1 = left
  • XLR/TRS 2 = right

You can configure the two ports to operate as independent mono inputs using the Admin panel, see Configure audio ports for stereo or mono.

TRS inputs accept balanced and unbalanced, pro line level signals (+4.0 dBu) up to to 12.3 VRMS, +24 dBu.

1 SD-SDI audio is not supported
2 In the Admin panel, RCA/3.5 mm includes audio signals from the RCA audio pair and the 3.5 mm stereo audio inputs by default. You can disable one or the other using the Admin panel, see Assign audio sources to an input.
3 You cannot use both XLR audio inputs and the TRS audio inputs at the same time.

Only content that is not HDCP-protected is captured from HDMI and SDI sources.