Data Sheet-6
All features & specifications subject to change without notice. DOC 104476 PN 11401
©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL (425)-355-6000 FAX (425)-347-7757 WEB http://www.rane.com
Architectural Specifications
The programmable audio system shall provide:
• Programmable level controls for all inputs and outputs
• A mix of four microphone (or line) inputs
• Two line-level inputs
• Three line-level outputs
• Six channels of matrix mixing with crosspoint level control
on each output
• A selectable pink noise source for each output
• Acoustic Echo Canceller, as required.
• Digital Hybrid, as required.
• RS-232 or contact closure control
The inputs and outputs shall use Euroblock connections
with active balanced designs using cross-coupled outputs. All
inputs shall have programmable level controls with an
operating range from –15 to +16 dB, in 1 dB steps. All
outputs shall have programmable level controls with an
operating range less than -80 and greater than +3 dB, in 1 dB
steps. Each output shall have a six channel matrix mixer with
crosspoint levels and routing controls. All crosspoints shall
have programmable level controls with an operating range
from –15 to +16 dB, in 1 dB steps. Each output shall have a
selectable limiter.
If required, the audio system shall provide for a connec-
tion to a Plain Old Telephone Service (POTS) two-wire line
using a digital hybrid. The digital hybrid must provide for
more than 32 milliseconds of line echo cancelling and a return
loss of more than 40 dB. Programmable DTMF dialing, auto-
answer and auto-disconnect shall also be provided.
If required, the audio system shall provide for an Acoustic
Echo Canceller (AEC). The input to the AEC shall provide a
means to select and mix different audio sources. These audio
sources shall include a microphone mix, a Line input and an
Aux input. The AEC reference shall provide a means to select
different audio sources. These audio sources shall include the
selection of the Program output of the audio system, a mix of
the Line, Aux and Hybrid inputs, and an external audio
source. The AEC shall be continually adaptive and not require
training.
The programmable audio system shall be a Rane Corpo-
ration ECM 64e, an ECA 2 Acoustic Echo Canceller module
(as required), and a DH 1e Digital Hybrid module (as
required).
Available Accessories
• Optional Acoustic Echo Canceller module (ECA 2)
• Optional Digital ECM 64e Hybrid Module (DH 1e)
Parameter Specification Limit Units Conditions/Comments
DSP Adaptive Line Echo Canceller
Frequency Response 250 to 3500 Hz
Tail Length 32 ms
Total Echo Cancellation Up to 60 dB Receive State only
Adaptive Echo Cancellation 45 dB
THD & Noise <0.1% 0 dBu, 20-20k Hz (80 kHz BW)
Signal-to-Noise Ratio >60 dB Inputs @ 0 dB, Outputs @ +4 dB
Maximum Output Level -10 dBm
DTMF Tone Burst 100 ms
Connector Type RJ11C
Unit: Agency Listing FCC Part 68 REN IC Compliance 0.1B
Shipping: Size 4.5" x 12" x 14" 11.5 cm x 30.5 cm x 35.5 cm
..........Weight 4 lb 1.8 kg
ECM 64eAD Rear Panel
ECM 64e Rear Panel
DH 1e Specifications
ECM 64e
CONFERENCING SYSTEM
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