A__mic8 / A__digital8 User Guide
Version: 10.0.0/4
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3. Overview
3. Overview
The
A__mic8
and
A__digital8
are members of Lawo's A__line series. Each 1RU, 19-inch unit provides a range of
local inputs and outputs, plus two dual-redundant streaming ports for Audio over IP (AoIP). By networking multiple
nodes, signals can be easily distributed between different device locations.
Local IO
A__mic8 (985/01)
A__digital8 (985/02)
8 x mic/line in
8 x AES3 in
4 x line out
4 x AES3 out
8 x GPI
8 x GPI
8 x GPO
8 x GPO
Network Interfaces
The rear panel provides two female RJ45, Gigabit Ethernet interfaces to stream the unit's local IO signals to and
from the IP network. The interfaces support the SMPTE ST2110-30/31, AES67 and RAVENNA standards. By
connecting and configuring both ports to discrete network paths, the unit can support redundant streaming via
SMPTE 2022-7 Seamless Protection Switching. Using a standard CAT5 cable, the device can be located up to
80m from the network switch. To extend the cable length, an optional Coax converter must be fitted.
Wordclock IN & OUT
The
A__mic8
and
A__digital8
come with Wordclock IN and OUT to expand the unit's synchronization options.
Power
The interfaces have no fans or internal power supply. They can be powered using either Power over Ethernet
(PoE), or an external 12V DC power supply which is optional. Power redundancy is achieved by connecting both;
in this instance, PoE takes priority.
Control
The front panel display and rotary control provides access to basic parameters such as the IP address of each
streaming port. All other parameters are accessed via a series of HTML pages. These can be remotely controlled
from a computer connected to the streaming network by opening a web browser connection to either Ethernet
port. The device's Landing page provides access to all HTML resources. These include the Device Parameters
and GPIO pages (for local parameter control), and the RAVENNA Web UI (used to select the sync source, set
the sample rate and manage all streaming connections).
Once configured, all parameters are accessible via Ember+. From Image Version 10.0.0, this includes the internal
Routing Matrix which maps the device's local IO signals to and from the RAVENNA streams.
Parameters can also be controlled from an mc
2
mixing console if the mc
2
system and A__line device are
correctly configured. For more about this application, please refer to the separate "RAVENNA for mc
2
/Nova User
Guide".
