Rane ECS Hardware (ECB 62e and ECM 82e) - Manual (Page 2)

HW Manual-2
CUSTOMIZING ECS
Before installing ECS components, there are a few options
that need to be determined first. All but one of these require
removing the top covers before installation.
ECS 62 STEREO EXPANSION MODULE
See the description and installation diagram of the ECS 62
Stereo Expansion module into the ECB 62e Base on page HW
Manual-6. The ECS 62 installs by seating the card onto
factory installed standoffs on the motherboard.
ECB 62e BASE WITH BOTH STEREO & MONO
PORTS
The ECB 62e Base and ECS 62 Stereo Expansion module
are shipped with jumpers in the stereo position. Both mono
and stereo sources may be used by changing the Mono
Jumper blocks as described on page HW Manual-6.
Mono Input signals must be wired to both the Left and
Right Inputs of the Base. Both Left and Right Port Outputs
produce the same mono signal. See Figure 1 below, and page
HW Manual-12 for mono source cable wiring.
Only the bottom ports (Right Channel) are monitored by
the Base. Therefore, threshold detection and metering are not
operational from the ECS 62.
ECM 82eA MIXERS WITH AEC
Systems may or may not require an AEC. Systems that do
require an AEC are those that require teleconferencing.
Although most video codec's have an AEC, their AEC
typically cannot operate with auto-mixers. It is always best to
use the ECM 82eA with a video codec. Systems not requiring
an AEC are those that only require speech reinforcement.
There are times you may wish to install multiple ECM
82eA’s. These are systems with a group of table microphones
where the General or Chairperson sits, and a group of ceiling
microphones or a gallery area. For these types of systems you
may want to set the table's ECM 82eA to soft suppression and
the other ECM 82eA to moderate or strong suppression. For
these types of systems connect each MIX OUT of the ECM
82eA to its respective MIX # input on the ECB 62e.
ECM 82e MIXER POST-GATE/PRE-GATE SWITCH
When installing a sound system with zones, it’s best to use
a Post-Gate mix of the Mics to create a Zone from the AUX
Output. This maintains the NOMM level for the Mixer. See
Applications - System 4 in the RaneWare Operators
Manual.
RaneWare note: the AUX Output is not turned On or Off
from the Mixer Output control.
This switch is set to Post-Gate at the factory. For installa-
tions requiring recording, place this switch in the Pre-Gate
position. This provides a more natural sounding recording.
This switch is located inside the ECM 82e Mixer. See the
diagram on page HW Manual-10.
ECM 82 MIXER PRE-AEC/POST-AEC SWITCH
Under normal circumstances a single AEC is used for the
entire system. When using a single AEC with multiple
mixers, daisy-chain the ECM 82e Mixers together using MIX
OUT to MIX IN. The last mixer in the chain and the one that
connects to the MIX 1 input on the ECB 62e must be the
ECM 82eA. For this type of configuration the MIX IN switch
on the ECM 82eA must be placed in its PRE-AEC position.
Rane ships the MIX IN switch on the ECM 82e in PRE-AEC
position.
The ECM 82e Mixer is shipped with the MIX IN (on the
rear panel) being mixed with the microphones before the
Echo Canceller. The internal MIX INPUT switch allows the
MIX IN to be combined with the microphone signals before
the Echo Canceller, thus providing echo cancellation to the
microphones of the upstream Mixer. To change to the Mix
Input to the pre-Echo Canceller setting, set the internal MIX
INPUT switch to the POST-AEC position. See the diagram on
page HW Manual-10 to locate the switch.
Figure 1. ECB 62e Base with both Stereo and Mono Ports