OSEE ACOHD6800 User manual

ACOHD6800
4X1 Intelligence Switcher
User Manual

Product Information
Model:
ACOHD6800 4X1 Intelligence Switcher
Version:
V010001
Release Date:
March 12th, 2015
Company
OSEE TECHNOLOGY CO., LTD.
Contact Information
Address:
No.22 Building, No.68 zone, Beiqing Road, Haidian District,
Beijing, China
Post Code:
100094
Tel:
([phone]
Fax:
([phone]
Web:
http://www.osee-dig.com/
E-mail:
[email protected]

About this manual
Important
The following symbols are used in this manual:
The further information or know-how for described subjects above which
helps user to understand them better.
The safety matters or operations that user must pay attention to when using
this product.
Contents
The user manual applies to the following device types:
ACOHD6800
The images of ACOHD6800 adopted in the following descriptions.
Any of the different specifications between the device types are elaborated.
Before reading the manual, please confirm the device type.

Contents
Contents ..........................................................................................................I
Chapter 1 Product Overview .........................................................................1
Chapter 2 Safety.............................................................................................3
Chapter 3 Unpack and Installation ...............................................................5
Chapter 4 Features ...................................................................................... 11
4.1 ACOHD6800 Module Features.......................................................... 11
4.2 Rear Connector Features .................................................................13
Chapter 5 Operation and Control ...............................................................17
5.1 Instructions on Control and Operation ...........................................17
5.2 Instructions on Parameter Settings.................................................18
5.2.1 Parameter Settings .........................................................................18
5.2.2 Menu Items.....................................................................................19
5.3 LED Indicator.....................................................................................26
5.4 Network Control ................................................................................28
Chapter 6 Specifications .............................................................................35

Product Overview
1
Chapter 1 Product Overview
This article is mainly about ACOHD6800 module, which is a 1RU card that can
be installed in 6800N series frame.
ACOHD6800 4×1 module is an emergency switcher, it offers supervision for
the real-time state of input signal, detection and alarm for video loss, EDH,
freeze frame and black burst. It can manually or automatically switch from the
primary input to the backup input once detecting abnormal signals or alarms,
thus it will keep consistency for the output. It is widely used in studio,
transmission control rooms, TV Stations and so on.
ACOHD6800 4×1 module offers four SD/HD-SDI input signals, one video loop
output with clock recovery, and the primary input IN1 offers a bypass relay
protection for the output. It supports the clean switching technology which is
realize by the internal circuitry, this technology provides continuous video
streams, and ensures a smooth switching without video flashing and audio
noise.
Switch control can be performed automatically or manually via GPI or a
matched remote control panel. In manual mode, switch control can be
undertaken via a remote control panel, or simply via GPI. In automatic mode,
the card will perform switch control based on internal signal analysis with alarm
conditions, and the status of the inputs. You can get the switched results by the
status of the connected remote control panel or the web page on the
connected computer. In automatic mode, you can set the automatic switching
mode, selecting from downward or upward. The IN1 is a particular bypass
channel to ensure continues output in case of a power failure.
Figure 1-1 The Module of ACOHD6800
ACOHD6800 modules support the following features:
Features
Provides switching among three input HD/SD-SDI signals, and

Product Overview
2
provides one reference input signal, one HD/SD-SDI output
Support selecting control mode between manual control and automatic
control
The automatic mode performs based on signal analysis of video loss,
EDH, freeze frame, black burst and audio supervision.
Build-in automatic horizontal corrector, and adjustable delay
Detecting the trigger of alarm criteria for the control mode switch-over
Support controls through remote control panel, GPIO and RS422
Input IN1 bypass to the output in the event of power failure or module
missing
The input cable equalization automatically
Support clean switching technology
Configures the modules through switches or network control panel
Functionality
Alarms when video lost, static frame or detecting black field
Supports power off memory, the settings will be restored if the module
loses power
Provides frame synchronizer
Supports intelligent protection function in order to avoiding "misuse".
When the input signal is detected abnormal, the switching operation for
output would be invalid.
Product Module
Table 1-1 Input/Output Signals Supported by ACOHD6800
Module Type
Input
Output
ACOHD6800
four HD/SD-SDI video input
one REF input
one HD-SDI loop output with
clock recovery
Signal Flow Chart
The signal flow chart for this unit is shown as in Figure 1-2:
Figure 1-2 The Signal Flow Chart of ACOHD6800

Safety
3
Chapter 2 Safety
FCC Caution:
Any Changes or modifications not expressly approved by the party responsible
for compliance could void the user's authority to operate the equipment.
This device complies with part 15 of the FCC Rules.
Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
Note: This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or more of
the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

Safety
4
Warnings:
Read, keep and follow all of these instructions for your safety. Heed all
warnings.
4×1 Switcher
Upgrading of the converter is subject to change without notice.。
Contact your Customer Service representative if parts are missing or
damaged.
Position
Do not block any ventilation openings.
Do not use this unit near water.
Do not expose the unit to rain or moisture.
Do not install near any heat sources such as radiators, heat registers,
stoves, or other apparatus (including amplifiers) that product heat.
A nameplate indicating operating voltage, etc., is located on the rear
panel.
The socket-outlet shall be installed near the equipment and shall be
easily accessible.

Unpack and Installation
5
Chapter 3 Unpack and Installation
Unpack
When unpacking the components of this switcher, please verify that none of
the components listed in Table 3-1 are damaged or lack. If there is any missing,
contact your distributors or Beijing Osee Digital Technology Ltd. for it.
Table 3-1 Packing List
No.
Item
Quantity
Comments
1
Switcher
1
ACOHD6800
2
Rear connector
1
3
Attachments
1
4
User manual
1
5
warranty card
1
About Unpacking and Shipping
This product was carefully inspected, tested, and calibrated before
shipment to ensure years of stable and trouble-free service. Before
you install this unit, do the followings:
Check the equipment for any visible damage that may have
occurred during transit.
Confirm receipt of all items on the packing list.
Contact your dealer if any item on the packing list is missing.
Contact the carrier if any item is damaged.
Remove all packaging material from the product before you install
the unit.
Retain at least one set of the original packaging materials, in the
event that you need to return a product for servicing.
If the original package is not available, you can supply your own

Unpack and Installation
6
packaging as long as it meets the following criteria:
The packaging must be able to withstand the product’s weight.
The product must be held rigid within the packaging
There must be at least 5 cm of space between the product and the
container.
The corners of the product must be protected.
Ship products back to us for servicing prepaid and, if possible, in the
original packaging material. If the product is still within the warranty
period, we will return the product prepaid after servicing.
Installation
1. Prepare for installation
Make sure you have prepared the followings before mount the converter:
Inspect for any apparent physical damage that may have occurred in
transit.
Make sure you have received all the components listed in packing list.
if there are any anti-static package or other packages, please take off
them.
Keep the package in case of future usage.
The safety matters or operations that user must pay attention to when using
this product.
Check out the consumption of module and the maximum power of frame
before installation, the maximum power ratings for different frames are
shown as in Table 3-2.
Ensure that all handling precautions are taken to avoid electrostatic
discharge or other damage to sensitive electronic components. Wear an
earth strap and perform all PCB assembly at an appropriate anti-static work
station. Follow the instructions carefully to fit the modules.

Unpack and Installation
7
Table 3-2 Maximum Power Ratings for 6800N Series Frames
Frame
Maximum Voltage
Redundant Power
Supplies
Numbers of Slots
6800N-C1
40W
Yes
4
6800N-C2
60W
Yes
10
2. Install the module
Follow the following steps to install the module:
Step 1 Install a rear connector
First, install the rear connector at the rear of the frame. Locate the
position for rear connector and insert the rear connector along the
slot, as shown in Figure 3-1 and Figure 3-2.
Figure 3-1 Rear Panel-Insert the Rear Connector
Figure 3-2 Rear Panel-Fix the Rear Connector

Unpack and Installation
8
Step 2 Fasten the screw to fix the rear connector, as shown in Figure
3-3.
Figure 3-3 Rear Panel-Fasten the Rear Connector
Step 3 Locate the slot for module, as shown in Figure 3-4.
Figure 3-4 Front Panel-Push the Module into the Slot
Step 4 Get the module installed in the slot.
Then, push the module slightly along the slot, press module again
to confirm that the module is installed firmly and then close
extractor handle, as shown in Figure 3-5.
Figure 3-5 Front Panel-Close the Extractor Handle of the Module

Unpack and Installation
9
Step 5 Install the front panel.
At last, install the front panel of the frame, as shown in Figure 3-6.
Figure 3-6 Front Panel-Install the Front Panle
Uninstallation
Follow the following steps to remove the module:
Step 1 Remove the front panel of the frame.
Step 6 Loosen and take off the module
Press down the extractor handle to loosen the module, as shown in
Figure 3-7.
Figure 3-7 Press Down the Extractor Handle
Then, hold the swivel handle, and pull out the module along the slot
of the frame.
Step 7 Install the front panel.
Take off the module, and mount the front panel on the frame.
Step 8 Take off the rear connector
Unscrew the screws of the rear connector, and take off the rear
connector.

10

Features
11
Chapter 4 Features
4.1 ACOHD6800 Module Features
The control switches and the LED indicator lights of ACOHD6800 module are
as shown in Figure 4-1:
Rotary switch
Toggle switch
LED Indicators
Extractor Handle
LED Indicators
Figure 4-1 The Switches and LED Lights of ACOHD6800
1. Rotary switch
It is a rotary switch which has 16 positions coded from 0 to F, it is used to
select and point to a parameter item.
2. Toggle switch
It is a toggle switch which has 3 positions which will get back to the middle
position automatically, It is used to set the parameters which has been
selected by SW1 through toggling up or down the handle.
3. LED Indicator
4. The module has a number of LED indicators, and they are indicate the
module status and functions, refer to “3 Alarm Settings
The automatic mode performs based on these alarm criteria: video loss,

Features
12
EDH, freeze frame, black burst and audio loss.
In the following alarm table, the details about the alarm settings are as
follows: Alarm Trigger Conditions, Alarm Levels and the trigger
intervals(Duration), as shown in Table 5-5:
Table 5-5 the Comparison of Alarm Settings and Alarm Conditions
Alarm
Items\Settings
Alarm Trigger Conditions
Default Settings
Alarm Levels
Trigger
Intervals(s)
Signal Loss
Detecting SDI IN1, SDI IN2, SDI
IN3, or SDI IN4 of video is loss or
unknown.
First-level
alarm
0
Black Burst
The video is black burst when
detecting the input signal is lower
than Black Burst Threshold and
higher than the Black Burst
Duration.
Second-level
alarm
1
Freeze
The video freezes when detecting
the input signal is higher than
Freeze Threshold and Freeze
Duration.
Second-level
alarm
125
EDH Error
Detecting the EDH error of the
input signal
Second-level
alarm
1
Audio Loss
If any group of audio is loss, it will
trigger Audio Loss alarm.
Second-level
alarm
1
The duration of each alarm trigger condition is adjustable, the range is
0~65535. If the alarm level is reached for less time than its trigger duration,
then the alarm will not trigger.
Alarm Levels
First-level alarm: when detecting the first-level alarm, it will not
activate the automatic switch between input channels, but there
will be the corresponding alarms reflecting in the button status of
remote control panel, SNMP prompts and the indicator status.

Features
13
Second-level alarm: when detecting the second-level alarm, it will
activate the automatic switch. You can set the duration after
detecting the alarm condition and before the trigger for switching
operation. Less than this duration, it will not activate the switching
operation if the alarm restored, otherwise it will activate the
switching operation if the alarm still not vanished.
The parameters modification of the module can be done through these
switches (SW1 and SW2), or in the network control page.
LED Indicator”for details.
Refer to “Chapter 5 Operation and Control”for the operation instructions of the
switches and LED indicators.
4.2 Rear Connector Features
1. Illustration for rear connector
We provide a rear connector module to support SDI input and output
function for ACOHD6800 module. The rear connector is shown as in
Figure 4-2:
Figure 4-2 The Rear Connector of ACOHD6800
The interfaces on the rear connector of ACOHD6800 are shown as Table
4-1:

Features
14
Table 4-1 The interfaces on the Rear Connector
Interface
Connector
Description
Comments
SDI IN1
BNC
SD/HD-SDI input1
Set as the primary signal
source, the signal is normally
direct as the output signal
source.
SDI IN2
BNC
SD/HD-SDI input2
Set as the secondary signal
source, the signal will be direct
as the output signal source
when IN1 is fault.
SDI IN3
BNC
SD/HD-SDI input3
Set as the third signal source,
the signal will be direct as the
output signal source when IN2
is fault.
SDI IN4
BNC
SD/HD-SDI input4
Set as the reference signal
source, usually using still
image, such as color stripe, test
chart as this signal. it can be
output to SDI OUT manually
when the other three signals
were all fault.
REF
BNC
Sync signal input
For external synchronization,
connect a synchronous signal
to REF IN
SDI OUT
BNC
SDI output
Output the selecting signal
source. When the module was
pulled out or power failure, the
SDI IN1 will be selected as the
signal source and output. Video
loop output with clock recovery.
GPI/GPO
/RS422
DB15
GPI/GPO/RS422
Connect to a remote control
panel or other control devices
for remoter control via this
interface
When ACOHD6800 module is in normal status, plug out the module and
the output signal will switch to a backup channel signal, the switching time
is less than 2s. Then if the module is plugged in, the output signal will
switch to the latest output signal source, and the switching time is less than
2s.