Optimus COU-02/0ETH User manual

9I259 13/02/11

COU-02/0ETH version 1.1 R&D Department 4
COU-02ETH
Ethernet controlled
change over unit
Contents
1. INTRODUCTION ...................................................................................................................5
2. BLOCK DIAGRAM .................................................................................................................6
3. FRONT INDICATORS AND CONTROLS...................................................................................7
4. REAR INDICATORS AND CONNECTIONS...............................................................................8
4.1. General view.............................................................................................................. 8
4.2. Control module .......................................................................................................... 8
4.3. COU-02/ESETH card ................................................................................................. 12
4.3.1. Fitting the card in the COU-02/0ETH............................................................... 12
4.3.2. Connections ................................................................................................ 12
4.4. Expansion card ........................................................................................................ 15
5. STARTING UP A COU-02/0ETH...........................................................................................16
5.1. Adding the unit to the installation by means of the P.A. Manager software....................... 16
5.2. COU-02/0ETH configuration parameters ...................................................................... 17
5.2.1. Configuration of the General tab .................................................................... 17
5.2.2. Configuration of the I/O Contacts tab ............................................................. 20
5.3. Connecting the unit to the installation structure ........................................................... 21
5.4. Connection to the IP network of the installation ........................................................... 21
5.5. Sending configurations to the unit .............................................................................. 21
5.6. Editing the configured parameters .............................................................................. 21
6. CHANGING THE IP ADDRESS OF THE UNIT BY SOFTWARE.................................................22
7. TECHNICAL SPECIFICATIONS ............................................................................................23
8. NETWORK SPECIFICATIONS ..............................................................................................24
9. SOFTWARE AND FIRMWARE VERSIONS .............................................................................26
10. DOCUMENT VERSION TRACKING .......................................................................................26
11. GUARANTEE .......................................................................................................................27

COU-02/0ETH version 1.1 R&D Department 5
COU-02ETH
Ethernet controlled
change over unit
1. INTRODUCTION
Unit for automatic changeover to a backup amplifier for Optimax installations.
Supports automatic switching of the line inputs and outputs of faulty power units to power units defined
as backup power units.
Each COU-02/0ETH supports surveillance of 6 power units for switching to 2 backup power units. Each
power unit for which surveillance is required must have a COU-02/ESETH card. In the event of failure,
the card switches 2 analog channels and the loudspeaker line to the backup amplifier.
The unit and each of the COU-02/ESETH cards that it contains are configured by means of the connection
to an ETHERNET network, using the P.A. Manager software.
When the changeover is made from a faulty amplifier to a backup amplifier, the latter automatically
acquires the configurations of the unit it is replacing.
In the event that there are more than two faulty amplifiers, the unit determines which ones are to be
replaced by the two backup amplifiers, according to the priority level assigned to each amplifier.
Operation:
When a fault occurs in a zone amplifier (temperature alarm, disconnection of the two ETH inputs, power
failure or high line impedance error), the FAIL contact of this amplifier is activated. This FAIL, connected
to the CTRL of the COU-02/ESETH card, triggers switching of the zone amplifier for the backup amplifier.
Principal characteristics:
Double Ethernet connection for installations with redundant network systems.
Operation in stand-alone mode or with P.A. Manager control software.
Input/output contacts configurable for backup amplifier fault detection or auxiliary functions.
Surveillance of equipment operation by means of P.A. Manager software and/or basic TELNET
functions.
IP address configuration by means of DIP switches, facilitating the replacement of equipment in an
installation, or remotely by software configuration.
Dispatch of system status alarms.
Front LEDs indicating the status of the amplifiers (OK/FAIL) and the status of the backup amplifiers
(OK/FAIL/IN USE/STAND-BY).
Occupies three units of height on 19'' Rack cabinets.

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COU-02ETH
Ethernet controlled
change over unit
AUDIO SIGNALS
LOUDSPEAKER LINES
2. BLOCK DIAGRAM

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COU-02ETH
Ethernet controlled
change over unit
3. FRONT INDICATORS AND CONTROLS
(1) OK Indicator of Backup Amplifier 1
Green LED. Indicates that backup amplifier 1 is
operative, without any faults.
(2) FAIL Indicator of Backup Amplifier 1
Red LED. Indicates a FAULT in backup amplifier
1.
(3) STANDBY Indicator of Backup Amplifier
1
Green LED. Indicates that the backup amplifier is
NOT operating as a replacement for any zone
amplifier.
(4) IN USE Indicator of Backup Amplifier 1
Yellow LED. Indicates that the backup amplifier is
operating as a replacement for a zone amplifier.
(5) RESTORE Button of Backup Amplifier 1
When a high impedance error is detected on a
loudspeaker line, if a zone amplifier fails, it is
replaced by a backup amplifier. Once the problem
has been solved, the RESTORE button must be
pressed to return the system to normal
operation.
(6) OK, FAIL, STANDBY, IN USE indicators
and RESTORE button of Backup Amplifier 2
These serve the same purpose as the OK, FAIL,
STANDBY, IN USE indicators and RESTORE
button of Backup Amplifier 1, applied in this case
to Backup Amplifier 2.
(7) ETH A (ETHERNET A) indicators
RX: When lit, it indicates that data is being
received through the ETHERNET A input.
TX: When lit, it indicates that data is being
transmitted through the ETHERNET A input.
10 Mbps: Indicates the transmission speed
of the IP network (lit: 10 Mbps; unlit: 100
Mbps. The use of a transmission speed of 100
Mbps is highly recommended).
LINK: Indicates connection to the network
through the ETHERNET A input.
(8) ETH B (ETHERNET B) indicators
These serve the same purpose as the ETHERNET
A indicators, applied in this case to ETHERNET B.
(9) Zone Amplifier 1 to 12 FAIL Indicator
Red LED. Indicates a FAULT in the zone amplifier.
(10) Zone Amplifier 1 to 12 OK Indicator
Green LED. Indicates that the zone amplifier is
operative, without any faults.
(11) POWER SWITCH
ON/OFF switch.
(12) ON/OFF INDICATOR
Power supply indicator.
Figure 1

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COU-02ETH
Ethernet controlled
change over unit
4. REAR INDICATORS AND CONNECTIONS
4.1. General view
(1) Control module
Serves to connect the power supply, the IP network and the backup amplifiers to the COU-02/0ETH
(see section 4.2.).
(2) Slot for COU-02/ESETH
card number 6 (see section
4.3.).
(3) Slot for COU-02/ESETH
card number 5
(4) Slot for COU-02/ESETH
card number 4
(5) Slot for COU-02/ESETH
card number 3
(6) Slot for COU-02/ESETH
card number 2
(7) Slot for COU-02/ESETH
card number 1
(8) Expansion card
4.2. Control module
(1) Power supply input (24 V DC)
(2) Ground contact and (3) Chassis contact
In all Public Address installations it is very important
that there is one single point of connection between
the signal ground connection and the mains supply
ground contact.
If the Public Address installation is composed of
several equipment units, their chassis will probably
be joined, either by means of the ground terminal of
the mains connection, or because they are fitted in a
rack cabinet.
If the ground connections are also joined by the
signal circuits, it is advisable to remove the jumper
between the ground connection and the chassis from
all the units except one.
Figure 2
The image shows a COU-02/0ETH with two COU-02/ESETH cards inserted.
Figure 3

COU-02/0ETH version 1.1 R&D Department 9
COU-02ETH
Ethernet controlled
change over unit
Figure 4b
Figure 6
Figure 4a
Figure 5
(4) Contacts +, S and –C of backup
amplifier 1
Use these contacts to connect the line out of
backup amplifier 1.
In installations without paging security,
connect the line out of backup amplifier 1 as
shown in Figure 4a.
In installations with paging security, refer to
Figure 4b.
(5) Contacts +, S and –C of backup
amplifier 2
Use these contacts to connect the line out of
backup amplifier 2.
Use the same connections as in Figures 4a
and 4b, but in this case use the COU-
02/0ETH contacts marked BACKUP
AMPLIFIER 2.
(6) Input/output contacts (IN/OUT
CONTACTS)
Configurable input or output contacts.
Normally contacts 1 and 2 are used for fault
detection in backup amplifiers 1 and 2 (see
example in Figure 5).
To configure these, refer to section 5.2.2.
(7) Supply fuse (2 A)
(8) OUTPUT 1 of Backup Amplifier 1
Audio output towards backup amplifier 1. An
RJ45 connector is used.
The signal present in this output is the
signal of INPUT 1 of the COU-02/ESETH card
whose amplifier is faulty and has switched to
backup amplifier 1.
Use Cat 5 STP cable for its connection (see
Figure 6).
(9) OUTPUT 2 of Backup Amplifier 1
Audio output towards backup amplifier 1. An
RJ45 connector is used.
The signal present in this output is the
signal of INPUT 2 of the COU-02/ESETH card
whose amplifier is faulty and has switched to
backup amplifier 1.
Use Cat 5 STP cable for its connection (see
Figure 6).
Pin 1: Audio H (hot).
Pin 2: Audio C (cold) if the
signal is balanced
Pin 3: Not used
Pin 4: Not used
Pin 5: Not used
Pin 6: Priority contact
Pin 7: Not used
Pin 8: GND

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COU-02ETH
Ethernet controlled
change over unit
N.B.: The IP address can also be set by software (see
section 6). If this action is taken, the IP ADDRESS DIP
switches on the unit cease to be operative.
(10) OUTPUT 1 of Backup Amplifier 2
Audio output towards backup amplifier 2. An
RJ45 connector is used.
The signal present in this output is the signal of
INPUT 1 of the COU-02/ESETH card whose
amplifier is faulty and has switched to backup
amplifier 2.
Use Cat 5 STP cable for its connection (see Figure
5).
(11) OUTPUT 2 of Backup Amplifier 2
Audio output towards backup amplifier 2. RJ45
connector is used.
The signal present in this output is the signal of
INPUT 2 of the COU-02/ESETH card whose
amplifier is faulty and has switched to backup
amplifier 2.
Use Cat 5 STP cable for its connection (see Figure
5).
(12) ETHERNET A input 10 Mb, ACT and
LINK LED indicators
10 Mb: Indicates the speed of the ETHERNET
network connected to the ETHERNET A input. If
the LED is lit, it indicates a speed of 10 Mb. If it
is not lit, it indicates a network speed of 100 Mb.
ACT: ACTIVITY indicator. It lights when data is
being sent or received through the ETHERNET A
input.
LINK: When lit, it indicates the connection of the
ETHERNET A input with the HUB or SWITCH.
(13) ETHERNET B input 10 Mb, ACT and
LINK LED indicators
These serve the same purpose as the ETHERNET
A indicators, applied in this case to the
ETHERNET B input.
(14) ETHERNET A connector
RJ45 type connector. Used for connection to
the ETHERNET network. Use Cat 5 STP cable
for its connection.
(15) ETHERNET B connector
RJ45 type connector. Used, in a redundant
network, as a secondary connection to the
ETHERNET network. Use Cat 5 STP cable for
its connection.
If the ETH A connection fails, the amplifier
automatically switches to this B connection,
so that the PA system continues to operate.
(16) IP ADDRESS DIP switches
The IP address of the COU-02/0ETH is configured
through these 4 DIP switches. This address
identifies the equipment unit in the network, and
so each unit must have a unique IP address.
An IP address is represented by means of a 32-
bit binary number. The IP addresses are
expressed as decimal notation numbers: the 32
bits of the address are divided into four octets
(an octet is a group of 8 bits). In the amplifier,
each octet is represented by A0 to A7 for the first
octet, B0 to B7 for the second octet, C0 to C7 for
the third octet, and D0 to D7 for the fourth octet.
In an octet, each bit can have the value 0 (DIP
switch OFF) or 1 (DIP switch ON). In order to
obtain the decimal value of the octet, the decimal
values of each bit that is in the ON position must
be added up (from left to right: 1, 2, 4, 8, 16,
32, 64 and 128).
Figure 6 shows an example in which the IP
address 192.168.100.128 is configured.
Table I on the next page shows all the DIP switch
combinations from 0 to 255.
When the IP address of a unit is changed, it is
necessary to restart the unit by means of the
ON/OFF switch on the front.
Figure 7
Figura 6