Adtec digital EN-30 (version 1.02.02) Manual - Manual (Page 37)

How to Connect via FTP
FTP connections can be made to the adtec device using any ftp client.
Host:
Default Username: adtec
Default Password: none
Port: 21
FTP is only useful for collecting logs from the device.
How to Use API Commands
The Adtec EN-30 device is unique in that it handles two physical encoders. To accommodate
commands for controlling both encoders, you will need to specify which encoder you are
working with for each command you issue.
Please make the following adjustments:
● Instead of using *.ecmd as noted the API descriptions, you will need to use.
○ *.ecmd0 to specify the first encoder.
○ *.ecmd1 to specify the second encoder.
Example: (*.ecmd0 TRA) will give you the transport status of the first encoder.
How Video Rates are Configured
(Example is pertinent to MPEG2 (VE1))
Video rates can be configured manually or automatically. The factory default is to automatically
set the video rate based on TMR. This option is referred to as VAF (Video Autofill). VAF
determines what the TMR is. It reserves 3.5% for null packets. It detects the video input
resolution for each channel. It automatically calculates the required headroom for audio pids. It
sets the video bit rate for each channel accordingly to maximise available bandwidth.
SD encode bitrate = 1.00 to 15.00 Mbps
HD encode bitrate = 7.00 to 60.00 Mbps
Example:
TMR is set to 40 Mbps.
Channel 1 has a SD 720x480i source.
Channel 2 has a HD 1920x1080i source.
15.00 Mbps will be allocated to channel 1 because the source is standard definition. 19.10Mbps
will be allocated to channel 2 (this is the available bandwidth after VAFs calculation)
If VAF is set to OFF, the video rate can be manually adjusted for each channel. If the manual
configured video rate would cause an egress overflow, the VAF logic will constrain the
misconfiguration and reconfigure the video rate for both channels.
Example: