OSEE SAC6840N User manual

SAC6840N
2X1 Switcher
USER MANUAL

Product Information
Model: SAC6840N 2X1 Switcher
Version: V010001
Release Date: June 30th, 2008
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]

Contents
Chapter 1 Introduction ............................................................................................ 1
Overview............................................................................................................................................ 1
Features.............................................................................................................................................. 1
Module Descriptions .......................................................................................................................... 2
Back Connector.................................................................................................................................. 2
SAC6840N................................................................................................................................. 2
Signal Flow ........................................................................................................................................ 3
Chapter 2 Installation.............................................................................................. 3
Overview............................................................................................................................................ 3
Maximum Power Ratings for Frame.................................................................................................. 4
Unpacking the Module....................................................................................................................... 4
Preparing the Product for Installation ........................................................................................ 4
Check the Packing List............................................................................................................... 4
Installing the Module ......................................................................................................................... 4
Install the front panel. Making the Connections ................................................................................ 5
Removing the Module........................................................................................................................ 5
Setting Jumper.................................................................................................................................... 6
LED Indicator .................................................................................................................................... 6
GPI/GPO Interface............................................................................................................................. 7
Chapter 3 Operation and Control............................................................................ 7
Switches and Key............................................................................................................................... 7
Chapter 4 Specifications........................................................................................11
SDI Video Input ................................................................................................................................11
SDI Video Output............................................................................................................................. 12
Analog Composite Video Output ..................................................................................................... 12
Warranty for osee product................................................................................... 13
What the warranty covers: ............................................................................................................... 13
What the warranty does not cover:................................................................................................... 13

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Chapter 1 Introduction
Overview
The SAC6840N is a SD-SDI/ASI 2X1 switcher, supports clean switching, and the switching function of
which is finished based on internal circuit. When power failure happens, the signal is still through
depended on the relay located at back connector, simultaneously, the setting of output is not changed.
The module can work at two modes, either AUTO mode or MANUAL mode. To AUTO mode,
switching happens when alarm occurs or internal status changes. To MANUAL mode, remote control
panel is optional to the module.
The module can be installed in 6800N series frame.
Tab. 1-1 Description of SAC6840N Switcher
Module Description
SAC6840N
2 channels serial digital signal input, 1 channel analog reference input,
1 channel PGM output, 1 channel output of COMP or SD-SDI/ASI,
ONET bus-mastering interface and GPI/GPO interface.
Features
The SAC6840N offers the following features:
PGM OUT characters bypass function, so the signal can’t break.
One channel of analog composite video signal which can pre-supervise the signal quality of input
The outputs are reclocked signals
Clean switching technique ensures video has no flickering, audio has no cacophony.
Three control modes, AUTO mode, MANUAL mode and BYPASS mode.
Auto mode based on freeze frame, black field, EDH, and audio status, such as loss, overload, parity
error, and etc.
2X over-sampling and 10-bit D/A conversion ensure high-quality images.
Can identify multi-format input, such as 525, 625, SDI and ASI signal
Auto-equalizing technique can compensate 300m Belden 8281 cable.
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,

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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.
Module Descriptions
Back Connector
Fig.1-1 Back Connector of 6800-C2 frame
SAC6840N
Fig.1-2 Back Connector of SAC6840N

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Tab. 1-2 description of SAC6840N Back Connector
Item Prescription
REF IN Analog reference input
IN 1 Serial digital input 1
IN 2 Serial digital input 2
PGM OUT Reclocked SDI video output (Bypass)
PVW/MON OUT Reclocked SDI video output or analog
composite output
ONET ONET bus interface
GPI/GPO GPI/GPO interface
Signal Flow
Fig. 1-3 Signal Flow of SAC6840N
Chapter 2 Installation
Overview
The power consumption for module and the maximum power ratings that frame can sustain have to be
confirmed before installing the module.
In this chapter, the following topics on installation process for SAC6840N are discussed below:
Unpacking the module
Setting Jumper
Installing the module
Making the connections
Removing the module

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Maximum Power Ratings for Frame
The maximum power ratings that different types of frames can sustain are listed in the Table 2-1
Tab. 2-1 Maximum Power Consumption
Frame Maximum Voltage Redundant Power Supplies Numbers of Slots
6800N-1U 40W Yes 4
6800N-2U 60W Yes 10
Unpacking the Module
Preparing the Product for Installation
Contact your dealer right now if any items are missing.
Follow the procedures below before installing the module:
Check the equipment for any invisible damage that may have occurred during transit.
Confirm all the items listed on the packing list have been received.
Remove all the packing material including electrostatic-resistant packing.
Retain these packing for future use.
Check the Packing List
Tab. 2-2 Packed Components
Model Name Description
SAC6840N SAC6840N module (1pc); back connector (1pc), and other accessories
Installing the Module
Caution：Static electricity may cause sensitive semiconductor out of order. Avoid installing
or removing the module in the electrostatic-induced environment.
Follow the following steps to install the module:
Step 1

SAC6840N 2X1 Switcher - 5 -
Step2
Step3
Step 4
Step5
Fig. 2-1 Installation of 2U Frame of 6800N Series
Locate the position for back connector and insert the back connector
Fasten the screw to fix the back connector.
Locate the slot for module.
Get the module installed in the slot, push the module slightly along the slot, press module again to
confirm that the module is installed firmly and then close swivel handle.
Install the front panel.
Install the front panel. Making the Connections
Please connect signals based on Fig. 1-2.
Removing the Module
Follow the following steps to remove SAC6840N module:
1. Open the front part of frame.
2. Open the swivel handle to the full.

SAC6840N 2X1 Switcher - 6 -
3. First make sure the frame stands firmly, and then pull the module gently along the slot till out
of frame.
4. Install the front panel.
Setting Jumper
Tab. 2-3 Description of SAC6840N Jumpers
Item Description
JP02 (used to choose control signal
when communicating)
Note: you must choose only one
option
RXD_INT: remote control from 6800 series frame
RXD_ONET: control signal from ONET remote control
panel
RXD_BOOT: reserved
JP03 (used to choose one signal of
PVW/MON OUT in the back
connector)
Used to choose which one will be output, Reclocked SDI
video output or analog composite output
JP17 (used to choose reference
signal )
FRM_REF: reference signal comes from common signal
provided by 6800 series frame
B_REF: reference signal is provided by Ref located at back
connector
JP10
ON/OFF
Please set at ON if JP17 is at B_REF,
While set at OFF if JP17 is at FRM_REF.
LED Indicator
Table 2-4 LED Indicator Function
Item（color）Description
POWER（green）On: Power is supplied.
Auto（green）On: The device works on AUTO mode.
Bypass (green) On: The device works on BYPASS mode.
OUT 1 (green) On: output the first source
OUT 2 (green) On: output the second source
SDI (green) On: SD-SDI signal
Off: ASI signal
SDT (green) On: 625
Off: 525
1ER (orange) On: there is error in the first source
2ER (orange) On: there is error in the second source

SAC6840N 2X1 Switcher - 7 -
GPI/GPO Interface
Tab. 2-5 the Definition of GPI/GPO pins
Pin 1 2 3 4 5 6 7 8 9
Definition GPI0 GPI1 GPI2 GPI3 GND GPO0 GPO1 GPO2 GPO3
I/O Attribute Input Input Input Input Ground Output Output Output Output
Tab. 2-6 GPI control prescription
GPI0 GPI1 GPI2 GPI3 Prescription
0 0 0 X MANUAL mode Switch to the first source
1 X Switch to the second source
0 1 0 X AUTO mode It has no effect on the output when the
status of GPI2 changes
1 X
1 0 0 X BYPASS mode Switch to the first source
1 X Switch to the second source
1 1 0/1 X Invalid, no switch
Note: switching can be fulfilled only when the module is in the control mode of BYPASS or MANUAL.
Chapter 3 Operation and Control
Switches and Key
Refer to Figure 3-1 or Table 3-1（Bank 0）or Table 3-2（Bank 1）to complete control
Fig. 3-1 Switches and Key
Rotate SW1 at the position of 0, and select the proper Bank by SW2.
Bank Selection
The SW1 has two Banks
Rotate the SW1 at the position of “0”. The position of “0” is always used to select Bank.
Turn SW2 up or down to select Bank.
1. SW1 Mode Selection
SW1
SW2
SW3

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SW1 is a 16-position rotary switch, which is used to select the specific setting.
The selection range is: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F.
2. SW2 Mode Selection
SW2 is a toggle switch, which is used to decide the concrete figure of the setting made by SW1.
SW2 is a 3-position toggle switch, used to decide the concrete figure of the setting made by SW1.
To keep SW2 at the position of “UP” or “DOWN”, the continuous adjustment can be achieved.
3. SW3
Press the SW3 to activate OSD.
Tab. 3-1 Bank 0 Function Setting
SW1
Position Function Options Default
0 Select Bank
Bank 0，Bank 1
Bank 2，Bank 3
Bank 4
Bank 0
1 Select video
standard
525
625
AUTO
AUTO
2 Select control mode
Bypass
1
Auto
Manual
Auto
3 Auto switching
mode
Switch to
Switch back Switch back
4 Select output signal Source 2
Source 1
5 Remote Control
selection
Internal
ONET
6 Test signal Color Bar
Normal Normal
7 OSD mode Automatic
On On
8 reserve
9 horizontal position
of Tally 000--082 041
A Alarming display Realtime
Normal Normal
B Audio Mon Sel Out 1-2
Out 3-4 Out 3-4
C Control the error of
de-embedding
Bypass
Mute Bypass
D V-bit mute Enable/Disable Enable

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SW1
Position Function Options Default
E Reserve Reserve
F Reserve Reserve
Note : 1 To BYPASS mode, the input signal is switched directly by relay with no processing
by internal circuit.
Tab. 3-2 Bank 1 SW1 Function Setting
SW1
position Function Options Default
0 Select Bank
Bank 0，Bank 1
Bank 2，Bank 3
Bank 4
Bank 0
1 Select Audio Group
Group 1
Group 2
Group 3
Group 4
CH 1
2 Select the type of
audio meter 1
NONE
VU
PEAK
VU+ PEAK
VU+ PEAK
3 elect the type of
audio meter 2
NONE
VU
PEAK
VU+ PEAK
VU+ PEAK
4
The horizontal
position of audio
meter 1
000~255 8
5
The horizontal
position of audio
meter 2
000~255 165
6 Select audio test
level
-18dB
-20dB -20dB
7 Freeze threshold 0~255 30
8 Freeze delay 0~255 050 Frames
9 Motion Delay 0~255 100 Frames
A Black field delay 0~255 050 Frames
B EDH error threshold 0~255 040 Fields
C EDH error number 0~32768
D~F reserve reserve

SAC6840N 2X1 Switcher - 10 -
Tab. 3-3 Bank 2 SW1 Function Setting
SW1
Position Function Options Default
0 Select Bank
Bank 0，Bank 1
Bank 2，Bank 3
Bank 4
Bank 0
1 Carrier En. Enable/Disable Disable
2 Lock En. Enable/Disable Enable
3 EDH En. Enable/Disable Disable
4 EDH Err En. Enable/Disable Disable
5 In1 Freeze En. Enable/Disable Disable
6 In1 BB En. Enable/Disable Disable
7 In1 G1 Loss En. Enable/Disable Disable
8 In1 G2 Loss En. Enable/Disable Disable
9 In1 G3 Loss En. Enable/Disable Disable
A In1 G4 Loss En. Enable/Disable Disable
B In1 CH1 Mute En. Enable/Disable Disable
C In1 CH2 Mute En. Enable/Disable Disable
D In1 CH3 Mute En. Enable/Disable Disable
E In1 CH4 Mute En. Enable/Disable Disable
F Reserved
Tab. 3-4 Bank 3 SW1 Function Setting
SW1
Position Function Options Default
0 Select Bank
Bank 0，Bank 1
Bank 2，Bank 3
Bank 4
Bank 0
1 In2 Freeze En. Enable/Disable Disable
2 In2 BB En. Enable/Disable Disable
3 In2 G1 Loss En. Enable/Disable Disable
4 In2 G2 Loss En. Enable/Disable Disable
5 In2 G3 Loss En. Enable/Disable Disable

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SW1
Position Function Options Default
6 In2 G4 Loss En. Enable/Disable Disable
7 In2 CH1 Mute En. Enable/Disable Disable
8 In2 CH2 Mute En. Enable/Disable Disable
9 In2 CH3 Mute En. Enable/Disable Disable
A In2 CH4 Mute En. Enable/Disable Disable
B~F Reserved
Tab. 3-5 Bank 4 SW1 Function Setting
SW1
position Function Options Default
0 Select Bank
Bank 0，Bank 1
Bank 2，Bank 3
Bank 4
Bank 0
1 Auto phase 625:0—1074999
525: 0--800899
2 Auto timing Press to set
3~E Reserved Reserve
F Restore the default
of parameters Press to set
Note: Bank 2 and Bank 3 determine which criterion is in operation.
Enable: the criterion is in operation; Disable: the criterion is invalid.
Chapter 4 Specifications
In this chapter, the specifications in the following subjects are introduced:
SDI Video Input
SDI Video Output
Analog Composite Video Output
SDI Video Input
Table 4-1 SDI Video Input Specifications
Item Parameter
Standards SMPTE 259M-C, 270 Mbps，
525/625 SDI Component
Impedance 75Ωtermination
Return Loss >18dB to 360MHz

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Item Parameter
Connector BNC (IEC169-8)
Equalization Auto to 30dB@270 Mbps
SDI Video Output
Table 4-2 SDI Video Output Specifications
Item Parameter
Standards SMPTE 259M-C, 270 Mbps，
525/625 SDI component
Connector BNC (IEC169-8)
Impedance 75Ω
Return Loss >18dB to 270MHz
Signal Level 800 mV ± 10%
DC Offset 0 V ± 0.5 V
Rise/Fall Time 400 to1500ps（20% to 80% of
amplitude）
Overshoot <10%
Jitter <0.2 UI（740ps）Peak
Analog Composite Video Output
Table 4-3 Analog Composite Video Output Specifications
Item Parameter
Standards NTSC, PAL or PAL-M
Level 1Vp-p+/-3dB
Impedance 75Ω
Return Loss >40 dB to 5 MHz
DC Offset 0V±0.05 V
Frequency Response ±0.2 dB to 5 MHz
Differential Gain <1%
Differential Phase <1.5°
Signal to noise 75dB to 5.75MHz
Note: Specifications are subject to change without notice

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Warranty for osee product
What the warranty covers:
osee warrants its products to be free from defects in material and workmanship during the warranty
period of two year from purchase date. If a product proves to be defective in material or workmanship
during the warranty period, osee will, at its sole option, repair or replace the product with a similar
product. The replacement unit will be covered by the balance of the time remaining on the customer’s
original limited warranty.
No sales personnel of the seller or any other person is authorized to make any warranties other than
those described above, or to extend the duration of any warranties on behalf of osee, beyond the time
period describe above.
This warranty is extended to the first consumer only, and proof of purchase is necessary to honor the
warranty. If there is no proof of purchase provided with a warranty claim, osee reserves the right not to
honor the warranty set forth above. Therefore, labor and parts may be charged to the consumer.
What the warranty does not cover:
1. Any product on which the serial number has been defaced, modified or removed.
2. Damage, deterioration or malfunction resulting from:
Accident, misuse, neglect, fire, water, lightning, or other acts of nature, unauthorized product
modification, or failure to follow instructions supplied with the product
Repair or attempted repair by anyone not authorized by osee
Any damage of the product due to shipment.
Removal or installation of the product.
Causes external to the product, such as electric power fluctuations or failure.
Use of supplies or parts not meeting osee product’s specifications.
Normal wear and tear.
Any other cause which does not relate to a product defect.