Pearl-2 Tech specs

Video inputs

Local video inputs:(2) 12G SDI
(2) HDMI™ 1.4a1 / DVI2
(2) 4K HDMI™ 1.4a (UHD/DCI)3 / DVI2
(2) USB 3.0 (UVC) – rear panel
Video over Ethernet5:RTSP4
NDI® 5, or NDI|HX6 (alpha channel support)
SRT (push)6
Connectors:(4) HDMI type A (female)
(2) BNC (female)
(2) USB-A (female) – rear panel
(1) RJ-45
Aspect ratios:3:2, 4:3, 16:9, 16:10, and custom aspect ratios
Standard resolutions:PAL, PAL wide, NTSC, NTSC wide
Input resolution range:640×480 to 4096×2160
Frame rate:Up to 60 fps7
Video input color spaces:HDMI: RGB 4:4:4, YCRCB 4:2:2, YCRCB 4:4:4
SDI: RGB 4:4:4, YCRCB 4:2:2
Maximum cable length for SDI:300 ft
Maximum cable length for USB 3.0:6 ft

Audio inputs

Analog audio inputs:(4) XLR pro line level (+4.0 dBu) up to 12.3 VRMS +24 dBu (balanced/unbalanced, mono or two L/R stereo pairs)
(1) RCA consumer line level -10 dBV (L/R stereo pair)
Connectors:(4) XLR (female)
(2) RCA (female)
Digital audio inputs9:(2) SDI8
(4) HDMI
(3) USB (rear panel)
(6) RTSP (from RTSP input over Ethernet)
(6) NDI (from NDI input over Ethernet)
(6) SRT (from SRT input over Ethernet)
Connectors:(2) SDI (female)
(4) HDMI (female)
(2) USB (female) – rear panel
(1) RJ-45 (female)
Audio gain control:0 dB to +30 dB
Audio mute:Yes
Configurable audio delay:-300 ms to +300 ms

Video processing

Video output color space:4:2:0, 8 bits per color
Video codec:H.264/AVC (ITU H.264, ISO/IEC 14496-10) 4:2:0, 8-bit color
– Encoding profile: High, Main, Baseline
– Profile levels: 3.0, 3.1,3.2,4.0,4.1, 5.1
Motion JPEG
Bitrate:1 to 50 Mbps (selectable)
Bitrate control:Constant
Hardware-accelerated video encoding:Optional
Video scaling:Software and hardware
Chroma keying:Upstream/downstream keying
Key frames:1/2 s and 1 s up to 5 s in 1-second intervals

Audio processing

Compression:MP3, AAC, and PCM
Sampling rate:MP3: 22 kHz, 44 kHz, 48 kHz
AAC: 16 kHz, 22 kHz, 44 kHz, 48 kHz
PCM: 22 kHz, 44 kHz, 48 kHz
Bitrate:64 to 320 kbps (MP3 and AAC)

Video output

Signal types:(1) HDMI 2.0 (port 1)
(1) HDMI 1.4a (port 2)
(6) H.264/AVC digital video over Ethernet
(4) NDI (unicast)
(6) RTSP
(6) SRT (push)
(6) HLS (push)
Connectors:(2) HDMI
(1) RJ-45 (female)
Encoded channels:Up to six 1080p channels at 30 fps or one 4K channel at 30 fps (recommended)
Streaming protocols:MPEG-TS and FLV
SRT (push) over UDP
HLS (push) over HTTP/HTTPS
Multi-publish to streaming server / CDN (SRT, RTSP, RTMP, RTMPS)
HLS (pull) – Native Apple HTTP/HTTPS stream for iPad, iPhone, and iPod Touch
Multicast streams:RTP, MPEG-TS and RTP, and MPEG-TS over UDP and SAP
Resolution ranges:Recorded: 480p to 2160p
Streamed: H.264: 480p to 2160p
NDI streamed: 480p to 2160p
HDMI output ports: 480p to 2160p
Frame rate:Up to 60 fps
Formats:H.264/AVC (ITU H.264, ISO/IEC 14496-10) 4:2:0, 8-bit color
– Encoding profile: High, Main, Baseline
– Profile levels: 3.0, 3.1,3.2,4.0,4.1
Motion JPEG
Network traffic shaping (multicast streams):4 Mbps to 95 Mbps (configurable)

Audio output

Analog audio output:(1) 3.5 mm stereo headphone jack – front panel
Digital audio outputs:RTSP, SRT, and NDI audio over Ethernet
HLS audio over HTTP/HTTPS
HDMI audio (embedded)

Monitor and control

Touch screen:4.3 inch touch screen monitor (built in) resolution: 800×480
USB keyboard:Connect a standard USB keyboard (optional)
USB status light:Connect a single USB status light (optional); supported models:
– Kuando BusyLight UC Alpha and UC Omega
– Delcom Products USB HID single-color and multi-color signal indicators

Recording and storage

Record formats:AVI, MOV, MP4, and MPEG-TS
Upload image formats:JPEG, PNG
Internal hard drive:512 GB SSD10
File transfer protocols:FTP, SFTP, SCP, AWS S3 client, and WebDAV client RSync
Network file share protocols:CIFS/SMB
File system for USB storage:FAT16, FAT32, XFS, EXT2, EXT3, EXT4, NTFS
External USB ports:(1) USB 3.0 – front panel
(2) USB 3.0 (UAV/UAC) – rear panel
Bitrate:Up to 50 Mbps


USB standards:USB 1.1, USB 2.0, and USB 3.0
HDCP compliant
Serial port:(1) Bidirectional RS-232 (female)
Serial port protocols:Data bits: 7 or 8 (default)
Stop bits: 1
Parity: None
Flow control: None, Hardware or Software
Serial port baud rate:19200 bps
Ethernet host port:(1) RJ-45 (female)
Ethernet data rate:10/100/1000 Base-T, half/full duplex with autodetect
Maximum Transmission Unit:68 to 1500 MTU (configurable)
Network discovery/announce:SAP

Network security

802.1x EAP methods:PEAP, EAP-TLS, EAP-TTLS

Administration and control

Admin panel:Local web UI for full administration. On-screen display and mobile UI for confidence monitoring, administration, and control.

Local Admin panel access using a USB mouse, keyboard, and monitor connected directly to Pearl-2 with built-in virtual keyboard and touch-screen monitor support.
Epiphan Live:Local web-based UI to easily control streaming, recording, and switching.
Secure access:Multiple user accounts and passwords.
HTTPS for secure Admin panel and Epiphan Live access, as well as local network access to the live channel broadcast.
Remote access:Remote login for rescue troubleshooting and control.
Cloud versions of the Admin panel and Epiphan Live available for Internet access.
API:Yes (HTTP/HTTPS or RS-232)
Crestron driver:Yes, see


Content management systems:Kaltura
Cloud access and management:Epiphan Edge
Control platforms:Crestron:


Power supply:Internal: 100-240 VAC, 50-60 Hz
Power use:0.8 A, 100-240 VAC
Operating temperature:32° to 104° F (0° to 40° Celsius)
Cooling:Fan air flow: Bottom front to back
Form factor:Portable desktop model
19″ rack mountable model
Dimensions (W × D × H):Pearl-2: 11.81″ × 9.45″ × 3.54″ (300 mm × 240 mm × 90 mm)
Pearl-2 Rackmount: 19 ⅛” × 3½” × 10 ⅞” (485 mm × 89 mm × 276 mm) – dimensions include mounting tabs
Weight:Pearl-2: 8.38 lbs (3.8 kg)
Pearl-2 Rackmount: 12.1 lbs (5.5 kg)
Regulatory compliance:FCC compliance: Part 15
CE compliance:
Directive 2014/30/EU – Electromagnetic Compatibility
Directive 2014/35/EU – Low Voltage Directive
Directive 2011/65/EU – RoHS
1HDCP compliant.
2Using HDMI port with adapter.
3Requires 4K feature add-on.
4Up to six 1080@30 inputs can be from RTSP sources or up to one 4K source can be from an RTSP source.
5A mix of video over Ethernet sources are supported. Just ensure total system load is withing acceptable levels.
6Up to six 1080@30 inputs or up to one 4K input source.
7Except the HDMI 4K input ports, which support up to 30 fps.
8Digital audio is de-embedded from the digital source.
9SD-SDI audio is not supported.
10Approximately 100 MB of HDD space is reserved for system use. Recording space can be virtually unlimited with offload to networked storage.
Pearl-2 rear