ETC E-SPM-RM-A User Manual

ETC Setup Guide

Unison Echo™ Rack Mount Station Power Supply w/ Aux Power

Overview

The Echo Rack Mount Station Power Supply with Auxiliary Power (E-SPM-RM-A) is designed for use with
the Echo control system to supply bus power for up to 16 Echo architectural control stations on the
topology-free EchoConnect control network and provides 24 Vdc auxiliary power (maximum 36 watts) for
Echo devices. The E-SPM-RM-A also supports connection of up to 16 compatible power panels or
distributed power controllers over EchoConnect.

Note:

If you are using Cat5 (or Cat5e) wiring, an external Echo Cat5 Termination Tray is
required. Contact ETC for ordering details. Control wiring instructions between the
termination tray and this Rack Mount Station Power Supply with Auxiliary will be
provided with the Unison EchoConnect Cat5 Termination Tray installation instructions.

For use with ETC Dimming and Relay Products.

Installation

Install Unit in Equipment Rack

The E-SPM-RM-A utilizes 2U of rack space.

Step 1: Locate the included rack mounting hardware kit including the mounting screws and

washers.

Step 2: Use the hardware provided to mount the unit to the mounting rails in your equipment rack.

Power and Control Wiring

The rack mount enclosure is provided with wiring connections on the rear of the unit.

• AC Power

• EchoConnect (Station Bus) and ESD Ground

• 24 Vdc Auxiliary power

Corporate Headquarters  Middleton, WI, USA  Tel [phone]  Service: (Americas) [e-mail]
London, UK
Rome, IT
Holzkirchen, DE
Hong Kong
Web: www.etcconnect.com

7186M2202

Rack Mount Station Power Supply with Auxiliary Page 1 of 3 Electronic Theatre Controls, Inc.



Tel [phone]  Service: (UK) [e-mail]



Tel [phone]  Service: (UK) [e-mail]



Tel [phone]  Service: (DE) [e-mail]



Tel [phone]  Service: (Asia) [e-mail]



Rev A  Released 2015-06  ETC intends this document to be provided in its entirety.



© 2015 ETC. All Rights Reserved.  Product information and specifications subject to change.

ETC Setup Guide

Rack Mount Station Power Supply with Auxiliary

Connect Power

Three IEC power cables are provided with this unit from the factory including US, UK, and Shuko. Supply
the Echo Station Power Supply with a single phase of 100-120VAC (.25A max) or 230-240 VAC
(.125A max), 50-60Hz.

Step 1: Connect the regional specific IEC power cable to the receptacle on the rear of the unit.

Connect EchoConnect (Station Bus) Wiring and ESD Ground

Termination is available for up to six runs of EchoConnect station bus wiring to the removable pluggable
connector labeled “Station Bus” on the rear panel of the unit. EchoConnect is a two-wire topology-free
system that allows the E-SPM-RM-A to provide power for up to 16 Echo sensors and stations and allows for
up to 16 power controllers. EchoConnect is a bidirectional protocol that uses one pair of wires (data+ and
data-) for both data and power. ETC recommends using Belden 8471 (or approved equal) Class II wire.

Note:

ETC requires that all stations be grounded. Pull an additional 14 AWG (2.5mm
provided ESD Ground terminal bar when control wires are not installed in grounded metal conduit.

Step 1: Remove the 16 pin screw terminal connector labeled “Station Bus” from the rear panel.
Step 2: Connect the Belden 8471 wires to the two pin screw terminal connector. This connection is

Step 3: Replace the connector to the rear panel.

Step 4: When required, terminate the 14 AWG (2.5mm

The total combined length of an EchoConnect wire run (using Belden 8471, or equal) may
not exceed 1,640 feet (500m).

2

) wire for grounding to the

polarity dependent. Refer to the connector label for notation of “data+ and data-”.

• Connect the white wire to the data + terminal.

• Connect the black wire to the data - terminal.

2

) Echo station ESD ground wire to the

provided ground terminal bar on the rear of the unit.

Connect 24 Vdc Auxiliary Power Wiring

Termination is provided for up to 5 runs of auxiliary power to the removable pluggable connector labeled
“Aux Power” on the rear panel of the unit. Auxiliary power provides 24 Vdc power that is required to
power compatible Echo devices.

Step 1: Remove the 10 pin screw terminal connector labeled “Aux Power” from the rear panel.

Step 2: Connect the auxiliary power wires, typically 16 AWG (1.5mm

terminals. This connection is polarity dependent. Refer to the connector label for notation of
“+ and -”.

• Connect the red wire to the + terminal.

• Connect the black wire to the - terminal.

Step 3: Replace the connector to the rear panel.

2

) red/black wire pair into the

Rack Mount Station Power Supply with Auxiliary Page 2 of 3 Electronic Theatre Controls, Inc.