Rane ECM 64 User Manual

DATA SHEET

Description

The ECM 64 Conference System is part of Rane’s
Engineered Conference System (ECS) line of professional
audio products. When all you have is a small conference room
requiring four mics, two line-level devices and a telephone,
and you want the best in full duplex conferencing, the ECM
64 is the product of choice. Like Rane’s larger conference
system, the ECB 62 and ECM 82, the ECM 64 is flexible in
many different applications. The ECM 64 can work on its
own for presentation and conference rooms, or as an add-on
for the larger ECS.

Features

• Four Programmable Mic or Line-level Inputs

• Two Programmable Balanced Line-level Inputs

• Three Programmable Balanced Line-level Outputs

• Six Channels of Matrix Mixing

• Separate Routing Functions for Each Output

• Pink Noise Source Selection for Each Output

• Level Meter for all Inputs and Outputs

• Optional Acoustic Echo Canceller Module (ECA 1)

• Optional Digital Hybrid Module (DH 1)

• RS-232 Control System Connection using Rane’s RW 232

• Front Panel Control of Output One’s Level and Off-Hook

• Front Panel Lock Selection

• 1 Working and 16 Non-Volatile Memories

• Four External Control Inputs for MRP (Memory Recall Port)

• Firmware Updates via RW 232

• External Control Inputs for Off-Hook, Privacy, Volume Up,

Volume Down, and Mute

• External Open Collector Status Outputs for Off-Hook, Privacy,

Mute, and Ring

ECM 64

CONFERENCE SYSTEM

The ECM 64 has six inputs and four outputs, and is
basically four independent six channel matrix mixers. All
audio inputs and outputs use Euroblock type connections. All
audio connections use Euroblocks. All Inputs are balanced
except for the external AEC Reference which is unbalanced.

Inputs include:

• Four programmable mic or line-level Inputs with rear panel

selectable phantom power that are mixed to one audio mix,
called Mic Mix

• Two programmable line-level Inputs called Line In and

Aux In

• A selectable external AEC Reference.

Outputs include:

• Three programmable balanced outputs

• Two unbalanced outputs (AEC Reference Out and AEC

Out).

• When installed, the optional Digital Hybrid (DH 1)

becomes the fourth programmable output.

There are two optional modules for the ECM 64, the DH 1
and the ECA 1. The DH 1 is a Digital Hybrid and allows for
connecting to a Plain Old Telephone Service (POTS), also
called a two-wire phone line. The ECA 1 is an Acoustic Echo
Canceller module, required when using the ECM 64 for
conferencing applications. Using optional modules gives the
system designer more applications flexibility. By ordering the
ECM 64AD, both of these modules are factory installed.

The ECM 64AD supports both two-wire and four-wire
audio connections. Two-wire connections use standard
telephone lines. A two-wire line consists of one balanced
audio line used for both the transmit and receive audio paths.
A four-wire connection uses separate audio pairs for the
transmit and receive audio paths. Devices such as a video
codec, audio over ISDN (like the Telos Zephyr™) and
personal computers that support Voice Over IP use four-wire
audio connections.

The ECM 64AD can operate as a standalone conference
system by itself, with switch closures using the MRP/EXT
Port, or with a personal computer running RaneWare® or
with a RS-232 based control system like AMX or Crestron.

To operate the ECM 64AD by itself, just connect micro­phones, a speaker, a telephone line, and a telephone set for
dialing. From the front panel, use the OFF HOOK button to
connect and disconnect the ECM 64AD to and from the phone
line, and use the VOLUME buttons for Program level.

…Continued on page 2

Data Sheet-1

ECM 64

CONFERENCING SYSTEM

For simple external control, using switch closures, use the
MRP/EXT (DB-15 female) connector on the rear panel. From
this connector memories can be recalled and some control
functions can be performed. Control functions on this
connector include Off Hook, Privacy, Volume Up and Down
and Mute. Status signals are also available from this connec­tor which include Off Hook, Privacy, Mute and Ring.

Full control of the ECM 64, including programming,
DTMF dialing and receiving status signals are available via
the rear panel RW 232 port. This port can interface directly to
any RS-232 port on a personal computer or control system.

Status LEDs on the front of the ECM 64 indicate Input
and Output Signal present and Overload conditions, Off Hook
(OH), Ring (RNG), Privacy (PRV), Mute (MUT), Auto­Answer (AA), a monitored input or output Level Meter, RW
232 communication (COM) and Power.

Front panel controls include Mic Gain switches for Line
or Mic inputs, OFF HOOK to connect to and disconnect from
a telephone call, VOLUME DOWN and UP to control
Program (OUT 1) level, and PORT STEP to select which
Input or Output to monitor on the LEVEL Meter.

ECM 64 Applications

• ECM 64 by itself - Small presentation room requiring a
programmable audio system with up to four microphones,
two line inputs and three outputs. Combined with a Rane

SRM 66, the ECM 64 makes a great audio system for hotel
room combining.

• By installing the DH 1, the ECM 64 becomes a digital
hybrid to interface with a standard POTS type telephone
line. This is also a useful add-on to the larger ECS (ECB

62 with an ECM 82A).

• By installing the ECA 1, the ECM 64 becomes an audio
system for a small video conference room connected by a
four-wire device, such as a video codec or a personal
computer that supports Voice Over IP.

ECM 64AD Applications

• Small conference room requiring full duplex conferencing
over a standard POTS type telephone line.

• Small conference room requiring full duplex conferencing
with a four-wire device, such as a Video Codec or a
personal computer that supports Voice Over IP.

• Small conference room requiring full duplex conferencing
with both a standard POTS type telephone line and a four­wire device.

Non-Volatile Memories

Batteries not included. All memories are stored in an
Electrically Erasable Prom (EEPROM) with a data retention
of 200 years. Stored Memories may be recalled by remote
switch contact closures using the Memory Recall Port (MRP)
or RS-232. The translation between switch closure and the 16
Memories is programmable. Current settings, called working
memory, are also non-volatile. Selecting a memory transfers
its contents to working memory.

Typical ECM 64AD installation

The ECM 64AD is preprogrammed to operate out of the box
using the following system configuration:

• Mix In routed to the AEC In

• Out 1 is used for the room speakers and the AEC Ref.

• Line In, Aux In and Hybrid routed to Out 1 (Program)

• AEC Out, Aux In and Hybrid routed to Out 2 (video codec)

• Mix In, Line In, Aux In and Hybrid routed to Out 3 (VCR)

• AEC Out, Line In and Aux In are routed to the Hybrid

Data Sheet-2

RaneWare®

Rane’s Windows-compatible software, called RaneWare,
is included at no extra cost, allowing the units to be controlled
in real time. The latest version of RaneWare is available at
Rane’s Internet site, http://www.rane.com. The software’s
easy-to-use graphical interface features control of all param­eters, and extensive on-line help. Memories may be recalled,
copied, and stored. A Site Control window is provided with
password protection so that all units can recall stored memo­ries without further access. Local Edit mode allows param­eters to be viewed and edited without affecting a unit. These
parameters can then be sent to a unit or saved in a file. The
software is operational even without an ECM 64 connected,
using an offline device. The Rane RPD 1 may be used to
control the ECM 64 from a remote location using a modem.
Also the Rane Via 10 Ethernet Bridge allows remote control
of the ECM 64 over a 10Base-T Ethernet.

ECM 64

CONFERENCE SYSTEM

Data Sheet-3

ECM 64 Block Diagram

AUX I N

LINE IN OUT 3

EXT .

AEC RE F.

MIC 1

MIC 2

MIC 3

MIC 4

RW 232

RW 232

OUT

MRP/EXT .

PHON E

LINE

Ph an to m

+12V

INPUT LED

123

4

1

1K

Gain Se lec t

1

034 46dB

SSM- 2017

DRIV ER

Mic 1 Level

Gain Se lec t

1

1K

034 46dB

SSM- 2017

Mic 2 Level

1K

Gain Se lec t

1

034 46dB

SSM- 2017

Aux In

Mic 3 Level

Gain Se lec t

1

1K

034 46dB

SSM- 2017

-10dB

10K

-10dB

10K

47K

IN

RJ11

RJ11

RW 232

INTE RFACE

FRONT PA NEL

ON/OFF HOOK
VOL UP/DWN

PHON E
REL AY

DAA

Line In

MIC MI X LINE IN AUX IN HYBRID RX

OUT 1 OUT 2 OUT 3 HYBR ID TX

4

RW 232

ADDRE SS

TX

RX

DIGIT AL HYBRI D MODUL E

Hy brid RX

DAC

DAC

DAC

DAC

DAC

DAC

DAC

MSTR OUT
MSTR SET

Mi c Mi x

Ex t.

Out 1

Mi x

DC AVG

CONVE RTERS

123

OL

+5V

.

SIGN AL

.

DATA

CLK

LD

WRITE

Echo C anc eller

In

AEC R ef
CTRL

AEC Ref Switch

AEC CT RL

A/D PORT S 1-8

RW 232 DATA

USER HYBRID CTRL

LEVEL & M IX CTR L

MRP

ADDRESS

PRO CESSOR

LIN E ECHO CANCEL LER

DTMF DECODING

RI RO

Mi c Mi x

Aux In

Line I n

S/LD1 S/LD2

Mi c Mi x

AEC

Line I n

Aux In

Hy brid RX

Noise

MSTR OUT
MSTR SET

DAC

DAC

DAC

DAC

DAC

DAC

DAC

DATA

WRITE

CLK

Out 1

Acoustic

Modul e

Ctr l.

NOISE CTRL

HYBRID CT RL.

Out

Re f.

(OPTIONAL)

VU P ORT

MEMORY

TITO

CONTROL

-10dBu

-10dBu

Pi nk No is e
Gen.

Ctrl

LEV EL

MET ER

NON-V OLATILE

MEMORY

Hy brid TX

Hy brid RX

AEC

Noise

Out

Line I n

Aux In

Hy brid RX

Mi c Mi x

AEC

Line I n

Aux In

Hy brid RX

Noise

Mi c Mi x

AEC

Line I n

Aux In

Hy brid RX

Noise

Mi c Mi x

AEC

Line I n

Aux In

Noise

MSTR OUT
MSTR SET

MSTR OUT
MSTR SET

MSTR OUT
MSTR SET

DAC

DAC

DAC

DAC

DAC

DAC

DAC

DAC

DAC

DAC

DAC

DAC

DAC

DAC

LIMI TER

DATA

WRITE

DATA

WRITE

CLK

CLK

AEC

DAC

DAC

DAC

DAC

DAC

DAC

DAC

LI MITE R

DATA

WRITE

CLK

OL

+5V

OUTPUT LE D

DRIV ER

.

SIGNAL

.

1

+10dB

LD

+10dB

S/L D3

LD

301

+10dB

S/LD4

LD

+4dB

S/LD5

LD

301

(OPTIONAL )

ECA 1 Specifications

Parameter Specification Limit Units Conditions/Comments

DSP Adaptive Acoustic Echo Canceller
Frequency Response

..........3.5 kHz operation 125 to 3625 Hz

..........7 kHz operation 125 to 7125 Hz

Audio Processing Delay <50 ms Local to Remote Output
Tail Length Up to 250 ms
Total Echo Cancellation Up to 60 dB Receive State only
Adaptive Echo Cancellation 45 dB
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

Data Sheet-4

PRO GRAM
OUT 1

OUT 2

AEC RE F

OUT

AEC OUT

ECM 64 Features and Specifications

Parameter Specification Limit Units Conditions/Comments

Mic Inputs: Type Active Balanced

.....Connectors Euroblock

.....Impedance 1.67k 1% ohms

.....Phantom Power 12 V 10 mA / Selectable

.....Signal LED Threshold -25 2 dBu Mic Levels @ 0 dB

.....Overload LED Threshold 11 2 dBu Mic Levels @ 0 dB

.....Maximum Level Input Levels set to -15 dB

..........@ 0 dB 12 dBu

..........@ 34 dB -22 dBu

..........@ 46 dB -34 dBu

Line Inputs: Type Active Balanced

.....Connectors Euroblock

.....Impedance 10k 1% ohms

.....Signal LED Threshold -19 2 dBu

.....Overload LED Threshold 17 2 dBu

.....Minimum Level -19 dBu Input Levels @ +16 dB

.....Maximum Level 18 dBu Input Levels @ -15 dB

Line Outputs: Type Active Balanced Cross-coupled

.....Connectors Euroblock

.....Impedance 50 1% ohms

.....Signal LED Threshold -19 2 dBu Output Levels @ 0 dB

.....Overload LED Threshold 18 2 dBu Output Levels @ 0 dB

.....Maximum Level 21 dBu Output Levels @ +4 dB

.....Limiter: Threshold 5 dB above set Output Level 1 dB

..........Attack Time 10 ms 1 dB step

..........Release Time 50 ms 1 dB step

System

THD & Noise <0.05 .05 % +4 dBu, 20-20k Hz (80 kHz BW)
Signal-to-Noise Ratio >80 2 dB Inputs @ 0 dB, Outputs @ +4 dB
Crosstalk >70 3 dB @ 1 kHz
Unit: Agency Listing

..........120 VAC Model Class 2 Equipment National Electrical Code

UL / CSA Exempt Class 2 equipment
Certified FCC part 15J Class B Device

..........230 VAC Model CE-EMC EMC Directive 89/336/EEC

CE-Safety Exempt Art. 1 of LVD 73/23/EEC
Power Supply: Agency Listing

..........120 VAC Model UL File no. E137895

CSA File no. LR53696-75

..........230 VAC Model CE-EMC EMC Directive 89/336/EEC

CE-Safety LV Directive 73/23/EEC
Power Supply: Input 95-250 VAC IEC line cord jack

..........Output +5 VDC, 5.0 A Pin 3

-12 VDC, 1.5 A Pin 4

+12 VDC, 0.8 A Pin 5

Return Pins 1 & 2
Unit: Construction All Steel

..........Size 1.75" H x 19" W x 8.5" D (1U) (4.4 cm x 48.3 cm x 21.6 cm)

..........Weight 6 lb (w/o power supply) (2.7 kg)

Shipping: Size 4.5" x 20.3" x 13.75" (11.5 cm x 52 cm x 35 cm)

..........Weight 11 lb (5.0 kg)

Note: 0 dBu=0.775 Vrms *Level Controls Set at “0”

Data Sheet-5

ECM 64

CONFERENCING SYSTEM

ECM 64 Rear Panel

ECM 64ad Rear Panel

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 connec­tion 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, auto­answer 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 Corpo­ration ECM 64, an ECA 1 Acoustic Echo Canceller module
(as required), and a DH 1 Digital Hybrid module (as re­quired).

Available Accessories

• Optional Acoustic Echo Canceller module (ECA 1)

• Optional Digital ECM 64 Hybrid Module (DH 1)

DH 1 Specifications

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 Haz (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

©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL [phone] FAX [phone] WEB http://www.rane.com

Data Sheet-6

All features & specifications subject to change without notice. DOC 104181 PN 11511 7-00