Blankom-Encoder-EN-V3-2019-RR.docx
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RRI 26. Februar 2019
Installation Notes
All types of the IRENIS-BLANKOM family are partly 19“devices with 1 RU height designed for installation in 19” racks. In addition to the front
panel screws an internal module support is required at the rack.
Depending on the Frontend used and the operating adjustments, the SAT-RF-input ports carrying DC Voltage (13V /18V, max. 400 mA).
By connecting a mains cable, the device can become functional without any auxiliary appliances. The power supply units are designed for the
wide range of 100-230V AC; a manual adjustment of the voltage is not necessary.
For some models the second power connector is feeding another independent power supply for internal redundancy. For a maximum of
redundancy both power supplies should use different circuits.
All the outputs are decoupled from one another. Thus, the circuit does not have any effect on the functioning of the device. Connections that are
not required need not to be terminated.
Suggestion:
CAT 6E Ethernet cable for GigabitEthernet, DSTP (double shielded twisted pair) for the streaming ports.
Note:
IPv4 global scope sessions use multicast addresses in the range 224.2.128.0 - 224.2.255.255 with SAP Announcements being sent to
224.2.127.254 Port 9875 (note that 224.2.127.255 is used by the obsolete SAPv0 and MUST NOT be used).
IPv4 administrative scope sessions using administratively scoped IP multicast. The multicast address to be used for announcements is the highest
multicast address in the relevant administrative scope zone.
For example, if the scope range is 239.16.32.0 - 239.16.33.255, then 239.16.33.255 is used for SAP Announcements.
Sources:
http://www.etsi.org/deliver/etsi_en/300400_300499/300468/01.15.01_60/en_300468v011501p.pdf
https://www.dvb.org/standards
As a
Multicast capable Switch
we recommend is the HP (ARUVA) 2530 24G or 48G.
(For Floor switches we have an own branded one and support IGMP as well) IGMP should be set to ON in the port configs. The latest HP
Firmware might not be the best choice. Better to test IGMP functions before installation into a HOT running System and eventually do a
downgrade of the Firmware. This one works:
General notes about Streams:
Multicast streams:
Multicast Address Ranges:
We recommend, that the addressing of your Multicast streams should be in conjunction with this listings to avoid conflicts with other network equipment or protocols.
https://www.iana.org/assignments/multicast-addresses/multicast-addresses.xhtml
One small part from this:
IPv4 Multicast Address Space Registry
Last Updated
2018-01-05
Expert(s)
Stig Venaas
Note
Host Extensions for IP Multicasting [
RFC1112
] specifies the extensions required of a host implementation of the Internet Protocol (IP) to support
multicasting. The multicast addresses are in the range 224.0.0.0 through 239.255.255.255. Address assignments are listed below.
The range of addresses between 224.0.0.0 and 224.0.0.255, inclusive, is reserved for the use of routing protocols and other low-level topology discovery
or maintenance protocols, such as gateway discovery and group membership reporting. Multicast routers should not forward any multicast datagram
with destination addresses in this range, regardless of its TTL.
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Registries included below
Local Network Control Block (224.0.0.0 - 224.0.0.255 (224.0.0/24))
Internetwork Control Block (224.0.1.0 - 224.0.1.255 (224.0.1/24))
AD-HOC Block I (224.0.2.0 - 224.0.255.255)
