LAWO mc236 xp, Инструкция по установке и обслуживанию, Страница: 21 / 59

mc²36 xp Installation & Service Guide Version: 1.0/1 21/59
4. The Hardware
Connection to the Core
The local I/O signals are streamed to and from the media network via the MISC A port (on the rear panel). Once
the physical connections are in place, you must use HOME to configure the senders and receivers, and then
connect the streams to the Core. Both the physical connections and streaming configuration must be in place
before the local I/O will work.
Internally, the local I/O has a single RAVENNA/AES67 interface and so redundant streaming is not supported.
The streams are fully compatible with the SMPTE ST2110-30/31, AES67 and RAVENNA standards.
All connections must be made via the media network (i.e. to and from a RAVENNA-compatible network switch).
This ensures that the network's PTP clock signal is available to all streaming ports.
The Ethernet cable must meet the following specification:
·
Cable: CAT 5 or better (CAT 5e/6/7); straight (1:1).
·
Connector: RJ45.
·
Network Speed: 1000, 100 or 10 Base-TX LAN. 1000 Base-TX (Gigabit Ethernet) is recommended.
·
Length: up to 100m.
The RAVENNA/AES67 interface provides:
·
RAVENNA: multi-channel digital audio-over-IP.
·
Up to 256 bi-directional channels at 48kHz AND 96kHz.
·
Up to 128 TX and 128 RX streams.
RAVENNA provides full SMPTE ST2110-30 and AES67 compatibility, since these protocols are a subset of
the RAVENNA specification.
The media network must be properly configured and managed. i.e. it must use a suitable network
architecture; all components must support multicast (as opposed to unicast); a proper Quality of Service
(QoS) must be configured; and so on.
Please DO NOT attempt to connect the streaming ports using an unqualifying IP network, as correct
operation cannot be guaranteed.
You can find more details about the data network requirements and suitable components in the Lawo IP
Networking Guide .
Default IP Address
The NET ID button and LED can be used to reset the service IP address of the RAVENNA/AES67 interface to
its default = 192.168.110.253 . Note that, for safety reasons, a press and hold is required; a quick press of the
button performs no action.
To perform a reset: first, make sure that the interface is booted and operating normally - the NET ID LED should
be blinking yellow. Then, using a pointed object, press and hold the recessed button until the LED lights
continuously. When the LED switches off, the reset is complete.