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