HELO Plus H.264 Streaming and Recording Encoder v1.0 13 www.aja.com
Power LED
Green -
Power on and normal operation
Amber -
Safeboot, intended only for recovery from software installation failure
"HELO Plus Safeboot" on page 17
Flashing Green -
Identify feature on
Audio Level Meter
The Audio Level Meter in the center of the front panel indicates the level of the
two audio output channels being streamed or recorded.
The meter's LEDs are colored to indicate the amount below 0dBfs when averaged
over a one millisecond time interval.
dBfs
LED Color and Location
-2 db
Red LED 1 (top)
-12 db
Yellow LED 2
-20 db
Yellow LED 1
-30 db
Green LED 4
-40 db
Green LED 3
-50 db
Green LED 2
-60 db
Green LED 1 (bottom)
NOTE: These audio level meters are for guidance only. Third-party audio metering
should be employed when doing critical audio editing and mixing.
Rear Panel
Figure 3. HELO Plus Rear Panel
2 Ch Analog
Audio In
SDI LED
HDMI LED
LAN LEDs
2 Ch Analog
Audio Out
SDI
Input
SDI
Output
HDMI
Input
HDMI
Output
Mini-USB
Config Port
RJ45 LAN
Connector
Power
Connector
Connections
Audio
• Audio Input (2 channel 3.5mm TRS connector)
• Audio Output (2 channel 3.5mm TRS connector)
NOTE: Embedded audio from SDI or HDMI is also supported.
