evertz 5600ACO User manual

Model 5600ACO Automatic Changeover Unit
Version 1.5
Model 5600ACO
Automatic Changeover
Instruction Manual
© Copyright 2003, 2004, 2005
EVERTZ MICROSYSTEMS LTD.
5288 John Lucas Drive,
Burlington, Ontario,
Canada L7L 5Z9
Phone: [phone]
Sales: [email protected] Fax: [phone]
Tech Support: [e-mail] Fax: [phone]
Web Page: http://www.evertz.com
Version 1.5 June 2005
The material contained in this manual consists of information that is the property of Evertz Microsystems and is
intended solely for the use of purchasers of the 5600ACO Automatic Changeover. Evertz Microsystems
expressly prohibits the use of this manual for any purpose other than the operation of the 5600ACO.
All rights reserved. No part of this publication may be reproduced without the express written permission of
Evertz Microsystems Ltd. Copies of this manual can be ordered from your Evertz dealer or from Evertz
Microsystems.

Model 5600ACO Automatic Changeover Unit
Version 1.5
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Model 5600ACO Automatic Changeover Unit
Version 1.5
IMPORTANT SAFETY INSTRUCTIONS
The lightning flash with arrowhead symbol within an equilateral triangle is
intended to alert the user to the presence of uninsulated “Dangerous voltage”
within the product’s enclosure that may be of sufficient magnitude to constitute a
risk of electric shock to persons.
The exclamation point within an equi-lateral triangle is intended to alert the user
to the presence of important operating and maintenance (Servicing) instructions
in the literature ac-companying the product.
• Read this information
• Keep these instructions.
• Heed all warnings.
• Follow all instructions.
• Do not use this apparatus near water
• Clean only with dry cloth.
• Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
• Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
• Do not defeat the safety purpose of the polarized or grounding type plug. A polarized plug has two
blades with one wider than other. A grounding type plug has two blades and a third grounding
prong. The wide blade or the third prong is provided for your safety. If the provided plug does not
fit into your outlet, consult an electrician for replacement of the obsolete outlet.
• Protect the power cord from being walked on or pinched particularly at plugs, convenience
receptacles and the point where they exit from the apparatus.
• Only use attachments/accessories specified by the manufacturer
• Unplug this apparatus during lightning storms or when unused for long periods of time.
• Refer all servicing to qualified service personnel. Servicing is required when the apparatus has
been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled
or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does
not operate normally, or has been dropped.
WARNING
TO REDUCE THE RISK OF FIRE OR ELECTRIC – SHOCK, DO NOT EXPOSE THIS APPARATUS
TO RAIN OR MOSITURE”
WARNING
DO NOT EXPOSE THIS EQUIPMENT TO DRIPPING OR SPLASHING AND ENSURE THAT NO
OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, ARE PLACED ON THE EQUIPMENT”
WARNING
TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM THE AC MAINS, DISCONNECT THE
POWER SUPPLY CORD PLUG FROM THE AC RECEPTACLE”
WARNING
THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERALBLE”

Model 5600ACO Automatic Changeover Unit
Version 1.5
INFORMATION TO USERS IN EUROPE
NOTE
This equipment with the CE marking complies with both the EMC Directive (89/336/EEC) and the Low
Voltage Directive (73/23/EEC) issued by the Commission of the European Community.
Compliance with these directives implies conformity to the following European standards:
• EN60065 Product Safety
• EN55103-1 Electromagnetic Interference Class A (Emission)
• EN55103-2 Electromagnetic Susceptibility (Immunity)
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to the European Union EMC directive. These limits are designed to provide reasonable
protection against harmful interference when the equipment is operated in a commercial environment.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at his own expense.
INFORMATION TO USERS IN THE U.S.A.
NOTE
FCC CLASS A DIGITAL DEVICE OR PERIPHERAL
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at his own expense.
WARNING
Changes or Modifications not expressly approved by Evertz Microsystems Ltd. could void the user’s
authority to operate the equipment.
Use of unshielded plugs or cables may cause radiation interference. Properly shielded interface cables
with the shield connected to the chassis ground of the device must be used

Model 5600ACO Automatic Changeover Unit
Version 1.5
REVISION HISTORY
REVISION DESCRIPTION DATE
0.1 Preliminary version Feb 03
1.0 First Release Mar 03
1.1 Added Table 2-3 – WA05600SYNCHRO Cable diagram Aug 03
1.1.1 Added warning about proper termination of sync outputs in section 2.4.1 Sep 03
1.2 Added info about connecting 500ACO2-HDSD cards in ACO Extension mode Sep 03
1.2.1 Added clarification on ACO Extension mode in sections 2.6 and 3.2.1 Dec 03
1.3 Added info in sections 2.5 and 3.4 about new dual GPI mode Jan 04
(available in firmware version 1.3 and later)
1.4 Added info in sections 3.3.1 and 3.3.2 about fast switching and Bank A priority Feb 04
(available in firmware version 1.4 and later)
1.5 Updated Safety Instructions, fixed minor typographical errors Jun 05
Added Firmware upgrade instructions
Information contained in this manual is believed to be accurate and reliable. However, Evertz assumes no responsibility for the use thereof nor
for the rights of third parties, which may be effected in any way by the use thereof. Any representations in this document concerning
performance of Evertz products are for informational use only and are not warranties of future performance, either express or implied. The only
warranty offered by Evertz in relation to this product is the Evertz standard limited warranty, stated in the sales contract or order confirmation
form.
Although every attempt has been made to accurately describe the features, installation and operation of this product in this manual, no
warranty is granted nor liability assumed in relation to any errors or omissions unless specifically undertaken in the Evertz sales contract or
order confirmation. Information contained in this manual is periodically updated and changes will be incorporated into subsequent editions. If
you encounter an error, please notify Evertz Customer Service department. Evertz reserves the right, without notice or liability, to make
changes in equipment design or specifications.

Model 5600ACO Automatic Changeover Unit
Version 1.5
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Model 5600ACO Automatic Changeover Unit
Version 1.5
TABLE OF CONTENTS
1. OVERVIEW..................................................................................................................................1-1
1.1. HOW TO USE THIS MANUAL............................................................................................1-3
2. INSTALLATION...........................................................................................................................2-1
2.1. REAR PANEL .....................................................................................................................2-1
2.1.1. Coaxial Connections................................................................................................2-1
2.1.2. Linear Time Code, Parallel Remote Control and Auxiliary Connections..................2-1
2.1.3. Power Connections..................................................................................................2-2
2.2. MOUNTING.........................................................................................................................2-2
2.3. POWER REQUIREMENTS ................................................................................................. 2-3
2.4. 5600MSC CONNECTIONS ................................................................................................. 2-3
2.4.1. Sync Outputs ...........................................................................................................2-3
2.4.2. 10 MHz Output.........................................................................................................2-3
2.4.3. DARS Outputs .........................................................................................................2-3
2.4.4. LTC and GPIO Connections....................................................................................2-4
2.4.5. Synchronizing the Menu Settings Of The Two 5600MSC Units ..............................2-4
2.5. CONNECTING THE GENERAL PURPOSE INPUTS AND OUTPUTS .............................. 2-5
2.6. CONNECTING 500ACO2-HD/SD AUTO CHANGEOVER MODULES............................... 2-6
3. HOW TO OPERATE THE AUTOMATIC CHANGEOVER...........................................................3-1
3.1. AN OVERVIEW OF THE STATUS INDICATORS .............................................................. 3-1
3.1.1. Operating Mode Indicators.......................................................................................3-1
3.1.2. Input Indicators ........................................................................................................3-2
3.1.3. Power Supply Indicators..........................................................................................3-2
3.2. FRONT PANEL CONTROL ................................................................................................3-2
3.2.1. Automatic Changeover Mode ..................................................................................3-2
3.2.2. Manual GPI Changeover Mode ...............................................................................3-3
3.2.3. Manual Front Panel Changeover Mode................................................................... 3-3
3.3. DIP SWITCHES...................................................................................................................3-3
3.3.1. Setting the Switchover Detection Speed..................................................................3-4
3.3.2. Setting the Switching Priority Mode.........................................................................3-4
3.4. GPI INPUTS ........................................................................................................................3-5
3.5. GPO TALLY OUTPUTS...................................................................................................... 3-6

Model 5600ACO Automatic Changeover Unit
Version 1.5
4. TECHNICAL DESCRIPTION .......................................................................................................4-1
4.1. SPECIFICATIONS...............................................................................................................4-1
4.1.1. LTC Outputs.............................................................................................................4-1
4.1.2. Coaxial Inputs and Outputs......................................................................................4-1
4.1.3. ACO General Purpose Inputs and Output ...............................................................4-1
4.1.4. MSC General Purpose Inputs and Output...............................................................4-2
4.1.5. Changeover Conditions: ..........................................................................................4-2
4.1.6. Electrical ..................................................................................................................4-2
4.1.7. Physical....................................................................................................................4-2
4.2. SERVICING INSTRUCTIONS.............................................................................................4-2
4.2.1. Changing the Fuses.................................................................................................4-3
4.2.2. UPGRADING THE FIRMWARE...............................................................................4-3
4.2.2.1. Overview ...................................................................................................4-3
4.2.2.2. Terminal Program Setup...........................................................................4-4
4.2.2.3. Initiating Firmware Upgrade Mode From The Terminal Program..............4-5
4.2.2.4. Uploading the new firmware......................................................................4-6
4.2.2.5. Completing the Upgrade...........................................................................4-6
Figures
Figure 1-1: Redundant Master Clock/SPG with Auto Changeover System Diagram....................................1-2
Figure 2-1: 5600ACO Rear Panel..................................................................................................................2-1
Figure 2-2: Typical GPI Circuitry....................................................................................................................2-5
Figure 2-3: Typical GPO Circuitry..................................................................................................................2-6
Figure 2-4: ACO Extension Mode Diagram ...................................................................................................2-7
Figure 3-1: Model 5600ACO Front Panel Layout...........................................................................................3-1
Tables
Table 2-1: AUX I/O Pin Definitions.................................................................................................................2-2
Table 2-2: ACO CTRL/STATUS and MSC GPIO Terminal Strip Pin Definitions...........................................2-2
Table 2-3: WA05600Synchro Cable ..............................................................................................................2-5
Table 3-1: Primary Input Preference Behaviour.............................................................................................3-3
Table 3-2: DIP Switch Functions....................................................................................................................3-4
Table 3-3: Switchover Detection Speed Switch Settings...............................................................................3-4
Table 3-4: Primary Reference Mode Switch Settings....................................................................................3-4
Table 3-5: GPI Input Mode Switch Settings...................................................................................................3-5
Table 3-6: Single GPI mode operation...........................................................................................................3-5
Table 3-7: Dual GPI mode operation .............................................................................................................3-5
Table 4-1: 7700 Series or 5600ACO Upgrade Cable (Evertz part #WA-S76)...............................................4-3

Model 5600ACO Automatic Changeover Unit
OVERVIEW Version 1.5 Page 1-1
1. OVERVIEW
The 5600ACO Automatic Changeover is intended for use with two 5600MSC Master Clock / Sync
Generators. The 5600ACO system uses latching relays to ensure maximum reliability and minimal
disruption in the event of any failure. The complete system provides the highest level of security for
television station video and time synchronization systems. Two power supplies are included as a
standard feature, to alleviate any single point of failure concerns.
The front panel has three switches, recessed into the panel for added security. There is an AUTO /
MANUAL switch, a GPI / FRONT PANEL switch and an A / B select switch for manual changeover. In
automatic mode, all signals from both 5600MSCs are scrutinized to detect any abnormal signals. For
example if a level, pulse width, phase, time code error or other abnormality is detected, the 5600ACO
circuitry will trigger and the entire bank of signals will be switched to the backup 5600MSC. In manual
mode the changeover can be operated from a GPI or from the front panel switch. Twenty-two LEDs
provide status information as to the health of the two 5600MSCs, together with indication as to which
one is active. In addition two GPO outputs indicate which master is active and when the inputs from
both masters are not the same.
The 5600ACO offers connections for 6 colour black, (or bi-level or tri-level sync signals), 10MHz, DARS
and two linear time codes (LTC) to each of the two Master 5600MSCs. Each 5600MSC Master offers
two LTC outputs that may be used for different time codes. All four LTC signals are fed to the 5600ACO
on two 'D' connectors, one for each Master. The LTC outputs from the selected master are available on
two XLR connectors.
Each 5600MSC is equipped with 2 GPI inputs and 2 GPO outputs. To facilitate installation, these
connections are through to a 2 x 6 pin terminal block on the 5600ACO. The outputs from the
5600MSCs are passed straight through the 5600ACO. The inputs to the 5600MSCs are internally split
by a 'Y' connector, to ensure that both 5600MSCs receive the same GPI contact closures.
In the event of a changeover occurrence, it is necessary that all outputs on one 5600MSC have the
same timing as those on the other. Identical timing for both 5600MSCs is assured by locking both to the
same frequency and phase source (e.g. GPS or by genlocking one 5600MSC to the other). Identical
phasing of the independent black outputs is assured by implementing the Syncro mode in the
5600MSCs. To use this mode, both 5600MSC communication ports are connected together using the
link cable supplied with the 5600ACO. With both 5600MSCs operating in Syncro mode, timing
adjustments made to one 5600MSC will be automatically applied to both. The link cable is connected
permanently, so that any system re-timing will be applied to both 5600MSC units.

Model 5600ACO Automatic Changeover Unit
OVERVIEW Version 1.5 Page 1-2
Features:
• Relay switches for all the system critical outputs from two 5600MSC units
• 8 video/sync/DARS or other coaxial signals
• 10MHz frequency reference output
• Time Code outputs
• Automatic changeover is a voting system based on which source has the most valid signals and
that the good signals on the present master are also on the backup.
• Three front panel switches select automatic, front panel or GPI activation of changeover
• Front panel switches are recessed to prevent accidental operation
• 20 Front panel status LEDs show the health of each of the inputs
• 10 Front panel status LEDs show the operational modes of the changeover
• Redundant power supply
AUX I/OGPSCOM
FUSE :
1.0 A
MODEL
5600MSC
ETHERNET
LN ACT 10/100
MODEM
123 45 6
IN LTC OUTOUT
10MHz
DARS / AE S / ANALOG
ANALOG TG OUT AES OUT
BA NK 1 SY NC OUT BAN K 2 SYN C OUT
SDI BLACK
21
2121
TG GENLOCK
MICROSYSTEMS LTD.
MADEIN CANADA SDI TG OUT
21
SD
DARS OU T
SD
SDI TGOUT
HD
SDI BLACK
HD
DA LR
GEN L OC K
10Mhz
6 Timeable
Black Burst DARS
TestSignals
SDI and
HDSDI
Modem
Computer
NTP
TestSignals
AnalogVideo
and Audio
BalancedAudio
GPS
LTC 1
Dual
AC
LTC 1
LTC 2
GPI out for ACO
GPI in/out for MSC
TestSignals
SDIand
HDSDI
Modem
NTP
TestSignals
AnalogVideo
and Audio
BalancedAudio
GPS
LTC 1
Dual
AC
Dual
AC
5600MSC
5600MSC
5600ACO
AUX I/ OGPSCOM
FUSE:
1.0 A
MODE L
5600MSC
ETHERNET
LN ACT 10/100
MODEM
123 45 6
IN LTC OUTOUT
10MHz
DA R S / AE S / A NA LO G
ANALOG TG OUT AES OU T
BANK 1 SYNC OU T BANK 2 SYN C OUT
SDI BLACK
21
2121
TG GENLOCK
MICROSYSTEMS LTD.
MAD E IN CA NA DA SDI TG O UT
21
SD
DARSOUT
SD
SDI TGOUT
HD
SDI BLACK
HD
DALR
GENLOCK
Figure 1-1: Redundant Master Clock/SPG with Auto Changeover System Diagram

Model 5600ACO Automatic Changeover Unit
OVERVIEW Version 1.5 Page 1-3
1.1. HOW TO USE THIS MANUAL
This manual is organized into 4 chapters: Overview, Installation, Operation, and Technical Information.
There are individual tables of contents at the beginning of each chapter as well as an overall table of
contents at the beginning of the manual to aid in finding the information you want.
"This symbol is intended to alert the user to important operating
instructions.
The exclamation point within an equi-lateral triangle is intended to alert the
user to the presence of important safety related operating and maintenance
(Servicing) instructions in this manual.

Model 5600ACO Automatic Changeover Unit
OVERVIEW Version 1.5 Page 1-4
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Model 5600ACO Automatic Changeover Unit
INSTALLATION Version 1.5 Page 2-1
2. INSTALLATION
2.1. REAR PANEL
Figure 2-1: 5600ACO Rear Panel
The following sections describe the purpose of the rear panel connectors of the 5600ACO. Sections
2.1.1 to 2.1.3 describe the specific signals that should be connected to the 5600ACO. Sections 2.4 and
2.5 give more detail on connecting the system.
2.1.1. Coaxial Connections
There are 8 groups of 3 BNC connectors on the 5600ACO rear panel. In each group there is one
labelled A, another labelled B for connection of the indicated signal from the respective 5600MSC
Master Clock/SPG. The BNC labelled OUT provides the output from the auto changeover unit for
further distribution throughout your plant.
DARS OUT This group of BNC connectors is for connecting the Digital Audio Reference Signal
(DARS) outputs.
SYNC 1 to 6: These groups of BNC connectors are for connecting the sync pulse / colour black
outputs.
10 MHz: This group of BNC connectors is for connecting the 10 MHz outputs.
2.1.2. Linear Time Code, Parallel Remote Control and Auxiliary Connections
AUX I/O: These two 9 pin male ‘D’ connectors contain GPI inputs and outputs and two LTC
outputs from the 5600MSC units and should be connected to the AUX I/O Connectors
on the respective 5600MSC units using the straight through 9 pin cables provided. The
pinout of the AUX I/O connector is as follows:

Model 5600ACO Automatic Changeover Unit
INSTALLATION Version 1.5 Page 2-2
Pin
# Name Description
1 LTC+ Primary LTC + output from 5600MSC.
2 GPO1 GPO 1 output from 5600MSC
3 AUX LTC+ LTC 2 out + from 5600MSC
4 GPI1 GPI 1 input from 5600MSC
5 GND Signal Ground.
6 GPI2 GPI 2 input from 5600MSC
7 GPO2 GPO 2 output from 5600MSC
8 AUX LTC- LTC 2 out - from 5600MSC
9 LTC- Primary LTC – output from 5600MSC
Table 2-1: AUX I/O Pin Definitions
LTC OUT: These two male XLR connectors provide the balanced LTC1 and LTC2 time code
outputs from the changeover.
ACO CTRL STATUS:The top row of the 12 pin terminal strip has two GPI inputs to control the
5600ACO and 2 GPI Outputs that provide tallies to indicate the status of the 5600ACO.
MSC: The bottom row of the 12 pin terminal strip has the two GPI Outputs from the A and B
5600MSC units and a pair of GPI inputs that will be connected to both the A and B
5600MSC units.
The cables can be secured into the removable portion of the terminal strips using a small
screwdriver. The removable part of the terminal strip is then inserted into the rear panel
and secured using the hold down screws. The pinout of this connector is shown in
Table 2-2.
ACO GPI1 ACO GPI2 GND GND ACO GPO1 ACO GPO2
MSC A GPO1 MSC A GPO2 MSC B GPO1 MSC B GPO2 MSC A & B
GPI1 MSC A & B GPI2
Table 2-2: ACO CTRL/STATUS and MSC GPIO Terminal Strip Pin Definitions
2.1.3. Power Connections
LINE: The 5600ACO has redundant universal power supplies operating on 100 to 240VAC,
60 or 50 Hz.
2.2. MOUNTING
The 5600ACO is equipped with rack mounting angles and fits into a standard 19 inch by 1 3/4 inch (483
mm x 45 mm) rack space. The mounting angles may be removed if rack mounting is not desired.

Model 5600ACO Automatic Changeover Unit
INSTALLATION Version 1.5 Page 2-3
2.3. POWER REQUIREMENTS
Power requirements are 100 to 240 volts AC at 50 or 60 Hz. The 5600ACO has redundant universal
power supplies that automatically sense the input voltage. Power should be applied by connecting a 3-
wire grounding type power supply cord to each of the power entry modules on the rear panel. The
power cord should be minimum 18 AWG wire size; type SVT marked VW-1, maximum 2.5 m in length.
The power entry modules combine a standard power inlet connector, two 5 x 20 mm fuse holders and
an EMI line filter. See section 4.2.1 for information on changing the fuses
CAUTION - To reduce the risk of electric shock, grounding of the centre pin
of the mains plug must be maintained
Make sure that both power cords are disconnected before opening the top
cover of the unit.
2.4. 5600MSC CONNECTIONS
The 5600MSC unit connected to the A inputs of the 5600ACO will be called Master A. The 5600MSC
unit connected to the B inputs of the 5600ACO will be called Master B.
2.4.1. Sync Outputs
Connect the six Sync outputs of the Master A 5600MSC unit to the A Sync inputs of the 5600ACO.
Connect the six Sync outputs of the Master B 5600MSC unit to the B Sync inputs of the 5600ACO.
Connect the Sync outputs of the 5600ACO to your plant distribution amplifier system.
"
To ensure proper signal detection and distribution, terminate each sync output
with 75Ω. If a sync output is double terminated or unterminated, the 5600ACO will
hunt for a good input signal by switching back and forth between input A and B.
The flashing LEDs will indicate the Sync output at fault.
2.4.2. 10 MHz Output
Connect the 10 MHz output of the Master A 5600MSC unit to the A 10 MHz input of the 5600ACO.
Connect the 10 MHz output of the Master B 5600MSC unit to the B 10 MHz input of the 5600ACO.
Connect the 10 MHz output of the 5600ACO to your plant 10 MHz reference system.
2.4.3. DARS Outputs
If your 5600MSC units are fitted with the AVTG option, connect the unbalanced DARS output of the
Master A 5600MSC unit to the A DARS input of the 5600ACO. Connect the unbalanced DARS output
of the Master B 5600MSC unit to the B DARS input of the 5600ACO. Connect the DARS output of the
5600ACO to your plant unbalanced AES distribution amplifier system.

Model 5600ACO Automatic Changeover Unit
INSTALLATION Version 1.5 Page 2-4
2.4.4. LTC and GPIO Connections
Connect the AUX I/O output of the Master A 5600MSC unit to the A AUX I/O input of the 5600ACO
using one of the straight through interconnect cables provided. Connect the AUX I/O output of the
Master B 5600MSC unit to the B AUX I/O input of the 5600ACO using one of the straight through
interconnect cables provided.
The LTC code outputs are available on two XLR connectors on the rear panel. Output level is from
approximately 0.5 V to 4 V using the LTC LEVEL item on the Output Setup menu adjustable in the
5600MSC units. Pin 1 of the XLR is ground, and pins 2 and 3 provide a balanced output. The LTC
Output sub-menus on the Output Setup menu in the 5600MSC units are used to configure the LTC
outputs.
The GPI1 and GPI2 inputs on both 5600MSC units are connected to the GPI1 and GPI2 inputs on the
bottom row of the 12 pin terminal block. The GPO 1 and GPO2 outputs on the Master A 5600MSC unit
are available on the MSC A GPO1 and MSC A GPO2 pins on the bottom row of the 12 pin terminal
block. The GPO 1 and GPO2 outputs on the Master B 5600MSC unit are available on the MSC B
GPO1 and MSC B GPO2 pins on the bottom row of the 12 pin terminal block.
The ACO GPI1 and GPI2 control inputs for the 5600ACO are available on the ACO GPI1 and ACO
GPI2 pins on the top row of the 12 pin terminal block. See section 3.4 for information about the
operation of the 5600ACO GPI inputs. The GPO1 and GPO2 outputs from the 5600ACO are available
on the ACO GPO1 and ACO GPO2 pins on the top row of the 12 pin terminal block. See section 3.5 for
information about the operation of the 5600ACO GPO outputs.
The GPI and GPO cables can be secured into the removable portion of the terminal strips using a small
screwdriver. The removable part of the terminal strip is then inserted into the rear panel. See Table 2-2
for the pinout of the terminal block.
2.4.5. Synchronizing the Menu Settings Of The Two 5600MSC Units
In the event of a changeover occurrence, it is necessary that all outputs on one 5600MSC have the
same timing as those on the other. Identical timing for both 5600MSCs is assured by locking both to the
same frequency and phase source (e.g. GPS or by genlocking one to the other). Identical phasing of
the independent black outputs is assured by implementing the Syncro mode in the 5600MSCs. To use
this mode, connect both 5600MSC communication ports together using the WA05600Synchro cable
supplied with the 5600ACO or make your own as shown in Table 2-3. On the 5600MSC connected to
the A inputs of the 5600ACO, set the Serial Port Mode to Synchro Tx. On the 5600MSC connected to
the B inputs of the 5600ACO, set the Serial Port Mode to Synchro Rx. The system configuration of
both units can now be accomplished by setting the menu items of the Master A unit only. Most of the
menu settings on the Master B unit can be viewed but cannot be changed. These menu items will be
dimmed when they are viewed on the Master B unit. Menu items of the Master B that can be changed
will be shown in the normal display brightness. See the 5600MSC manual for a full description of
Synchro mode operation.

Model 5600ACO Automatic Changeover Unit
INSTALLATION Version 1.5 Page 2-5
5600MSC
SynchroRx End 5600MSC SynchroTx End
9 pin D
Male Pin Belden 9501 9 pin D Male Pin
1 1
TxD 2 -------1b------ RxD 3
RxD 3 -------1a------ TxD 2
4 4
Gnd 5 ---drain---- Gnd 5
6 6
RTS 7 CTS 8
CTS 8 RTS 7
9 9
Frame Gnd Shield ---drain---- Frame Gnd Shield
Table 2-3: WA05600Synchro Cable
2.5. CONNECTING THE GENERAL PURPOSE INPUTS AND OUTPUTS
The 12 pin terminal strip connector has 2 general purpose inputs and 2 general purpose outputs for
control/status of the Auto changeover, as well as the GPI inputs and Outputs from the two 5600MSC
units. The signals on the top row of the connector are for the 5600ACO only and do not connect to the
5600MSC units. (see section 3.3) The signals on the bottom row of the connector are connected
directly to the 5600MSC units (see section 2.4.4). The GPI cables can be secured into the removable
portion of the terminal strips using a small screwdriver. The removable part of the terminal strip is then
inserted into the rear panel.
The GPI inputs are considered high if you leave an input floating (not connected) or pull it up to +5
volts. The GPI inputs are considered low when the GPI input is below 0.8 volts. The user can make the
GPIs low simply by connecting the GPI input pins to ground using a button, switch, relay or an open
collector transistor. Figure 2-2 shows the circuitry for each of the GPI input pins.
+ 5 VDC
1 K ohm
to
internal
circuit
10 Ohm
GPI Input
Figure 2-2: Typical GPI Circuitry.
The outputs are internally pulled up to 5 volts. Care must be taken to limit the load to 0.5W so there is
no affect on the power supply source in the frame. Figure 2-3 shows the circuitry for each of the GPO
output pins.

Model 5600ACO Automatic Changeover Unit
INSTALLATION Version 1.5 Page 2-6
GPO Pin
from
internal
circuit
+ 5 VDC
10 K
Figure 2-3: Typical GPO Circuitry.
2.6. CONNECTING 500ACO2-HD/SD AUTO CHANGEOVER MODULES
The Evertz 500ACO2-HD/SD dual SDI Auto changeover is designed to provide additional changeover
switches to extend the capabilities of the 5600ACO for HD or SD serial digital video, DVB-ASI, AES
audio or additional analog switches. These unit can also be operated as a standalone changeover unit
with two independent 2X1.
The 5600ACO will act as the master and multiple 500ACO2-HD/SD can be used as slaved devices. In
order to use the 500ACO2-HD/SD with the 5600ACO, the 5600ACO DIP switch must be set to enable
ACO Extension mode. The DIP switch is located inside the 5600ACO, and is accessible by removing
the top cover of the unit. (See section 3.3) To enable ACO extension mode set DIP switch 1 to the On
(Closed) position. Multiple 500ACO2-HD/SD can be connected using the two available GPI outputs as
shown in Figure 2-4.
"
The Front Panel GPI operating mode will be disabled when the 5600ACO is
operating in ACO extension mode. (DIP switch 1 is set to the On position) The GPI
LED will Blink when the MANUAL CONTROL MODE switch is set to the GPI position
and DIP switch 1 is On. See section 3.4.
When the 5600ACO is operating in ACO extension mode, and the front panel CHANGEOVER MODE
switch is set in the Auto position, the 500ACO2-HD/SD modules will signal the 5600ACO the status of
all the inputs by means of the ACO GPI1 and ACO GPI2 inputs. The 5600ACO will decide if a
changeover is necessary based on all the inputs on the 5600ACO, and the ACO GPI1 and ACO GPI2
inputs from all the 500ACO2-HD/SD connected on the wired ORed bus. The 5600ACO provides
control of the 500ACO2-HD/SD module’s switches by means of the ACO GPO1 output.
"The 5600ACO firmware must be version 1.2 or higher to operate in this mode

Model 5600ACO Automatic Changeover Unit
INSTALLATION Version 1.5 Page 2-7
......
5600ACO GPI2
GPI1
500ACO2-HD/SD
unit 1 500ACO2-HD/SD unit 2 5002ACO-HD/SD
unit n
GPO1
GPI1 GPI1 GPI1
GPO1 GPO2 GPO1 GPO2 GPO1 GPO2
Figure 2-4: ACO Extension Mode Diagram

Model 5600ACO Automatic Changeover Unit
INSTALLATION Version 1.5 Page 2-8
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