Samsung SRD-1650DC User manual

8 Channel
16 Channel DVR
User Manual SRD-830DC/850DC/870DC/
1610DC/1630DC/1650DC/1670DC

2_ overview
FEATURES
The SRD DVR (Digital Video Recorder) employs H.264 video encoding for 8 or 16 channel inputs and G.723 audio
encoding for 4 or 16 channels while simultaneously supports hard disc recording and playback.
These DVRs also supports network connectivity, providing remote monitoring from a remote PC transferring video
and audio data.
Provides convenient User Interface
8/16 CH Composite Input Connectors
Supports CIF(S)/2CIF(M)/4CIF(L) recording formats
With the network specific codec, network transfer enabled regardless of the recording conditions
De-interlacing processor for better picture quality
HDMI enabling superior picture output quality
Display of HDD information and status by using HDD SMART
4CIF Size (NTSC: 704*480, PAL: 704*576) Recording in 480 (NTSC)/400 (PAL) IPS speed (SRD-870DC/1670DC)
CIF(S) Size (NTSC: 352*240, PAL: 352*288) Recording in 480 (NTSC)/400 (PAL) IPS speed (SRD-850DC/1650DC)
CIF(S) Size (NTSC: 352*240, PAL: 352*288) Recording in 240 (NTSC)/200 (PAL) IPS speed (SRD-1630DC)
CIF(S) Size (NTSC: 352*240, PAL: 352*288) Recording in 120 (NTSC)/100 (PAL) IPS speed
(SRD-830DC/1610DC)
8/16-channel Loop Through Video port connection
Hard Disk overwrite function
Mass storage hard disk backup through high-speed USB 2.0
Mass storage hard disk backup through eSATA (SRD-850DC/870DC/1650DC/1670DC)
Backup function using USB 2.0 flash memory and external CD/DVD writer
Simultaneous Record and Playback of 8/16-channel video data
Various Search Modes (Search by Time, Event, Backup, POS and Motion Detection)
Various Recording Modes (Time Lapse, Event, Scheduled Recording)
Extended Hard Disk Connection (USB 2.0, eSATA) (SRD-850DC/870DC/1650DC/1670DC)
Alarm Interface (Input: 8/16, Output: 4, Reset: 1)
Remote Monitoring function by Windows Network Viewer
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overview

English _3
OVERVIEW
IMPORTANT SAFETY INSTRUCTIONS
Read these operating instructions carefully before using the unit.
Follow all the safety instructions listed below.
Keep these operating instructions handy for future reference.
Read these instructions.
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 the other. A grounding type plug has two blades and a third
grounding prong. The wide blade or the third prong are 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.
Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the apparatus. When a cart is used, use
caution when moving the cart/apparatus combination to avoid injury from
tip-over.
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.
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4_ overview
overview
BEFORE START
This user manual provides Information for using the DVR such as brief introduction, part names, functions, connection
to other equipment, menu setup, etc.
You have to keep in mind the following notices :
SAMSUNG retains the copyright on this manual.
This manual cannot be copied without SAMSUNG’s prior written approval.
We are not liable for any or all losses to the product incurred by your use of non-standard product or violation of
instructions mentioned in this manual.
Prior to opening the case, please consult a qualified technician first. Whenever this is needed power must be
removed from the unit.
Before installing an additional HDD or connecting an external storage device (USB memory or USB HDD) to this
DVR, check the compatibility. Consult your provider for the compatibility list.
Warning
Battery
It is essential that when changing the battery in the unit, the replacement battery must be of the same type
otherwise there may be a possibility of an explosion.
The following are the specifications of the battery you are using now.
Normal voltage : 3V
Normal capacity : 170mAh
Continuous standard load : 0.2mA
Operating temperature : -20°C ~ +85°C
(-4°F ~ +185°F)
Connect the power cord into a grounded outlet.
The Mains plug is used as a disconnect device and shall stay readily operable at any time.
Batteries shall not be exposed to excessive heat such as sunshine, fire or the like.
System Shutdown
Turning off the power while the product is in operation, or undertaking improper actions may cause damage
or malfunction to the hard drive or the product.
Please turn off the power using the Power button on the front of your DVR.
After selecting <OK> in the pop-up menu, you can pull off the power cord.
You may want to install a UPS system for safe operation in order to prevent damage caused by an
unexpected power stoppage. (Any questions concerning UPS, consult your UPS retailer.)
Operating Temperature
The guaranteed operating temperature range of this product is 0°C ~ 40°C (32°F ~ 104°F).
This product may not work properly if you run right after a long period of storage at a temperature below the
guaranteed one.
Prior to using a device that has been stored for a long period in low temperatures, allow the product to stand
at room temperature for a period.
Especially for the built-in HDD in the product, its guaranteed temperature range is 5°C ~ 55°C (41°F ~ 131°F).
Likewise, the hard drive may not work at a temperature below the guaranteed one.
Ethernet Port
This equipment is in door use and all the communication wirings are limited to inside of the building.
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CALIFORNIA USA ONLY
This Perchlorate warning applies only to primary CR (Manganese Dioxide)
Lithium coin cells in the product sold or distributed ONLY in California USA.
“Perchlorate Material - special handling may apply,
See www.dtsc.ca.gov/hazardouswaste/perchlorate.”

English _5
OVERVIEW
Standards Approvals
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.
Package Contents
Please unwrap the product, and place the product on a flat place or in the place to be installed.
Please check the following contents are included in addition to the main unit.
Remote Control Mouse Power Cable
Network Viewer Software /
User Manual CD User Manual Remote Control Battery (AAA)
SATA Cable (4EA) Audio Extension Cable (optional)
(SRD-850DC/870DC/1650DC/1670DC) HDD Fixing Screw (16EA)
Bracket Fixing Screw(4EA) Bracket Rack
For models that are not equipped with the HDD, one SATA cable is provided for HDD installation.
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6_ overview
overview
CONTENTS
OVERVIEW

2Features
3Important Safety Instructions
4Before Start
8Part Names and Functions (Front)
10 Part Names and Functions (Rear)
13 Remote Control
INSTALLATION

14 Checking the installation environment
15 Rack Installation
15 HDD Addition
CONNECTING WITH OTHER DEVICE

18 Connecting the Video, Audio, and Monitor
18 Connecting the USB
19 Connecting External SATA HDD
19 Connecting POS Device
19 Connecting the Alarm Input/Output
20 Connecting the RS-485 Device
21 Connecting the Network
LIVE

23 Getting Started
25 Live Screen Configuration
29 Live Mode
31 SPOT Out
32 Zoom
32 Audio ON/OFF
32 Freeze
33 Event Monitoring
USING THE DVR

34 System Setup
44 Setting the Device
52 Setting the Recording
55 Setting the Event
58 Backup
59 Network Configuration
66 Controlling a PTZ device

English _7
OVERVIEW
SEARCH & PLAY

68 Search
71 Playback
WEB VIEWER

73 Introducing Web Viewer
74 Connecting Web Viewer
75 Using Live Viewer
81 Using Search Viewer
85 Viewer Setup
95 About
BACKUP VIEWER

96 SEC Backup Viewer
APPENDIX

98 Product Specification (SRD-830DC/1610DC/
1630DC)
101 Product Specification (SRD-850DC/870DC/
1650DC/1670DC)
104 Product Overview
105 Default Setting
108 Troubleshooting

8_ overview
overview
PART NAMES AND FUNCTIONS (FRONT)
830DC/850DC/870DC
1610DC/1630DC/1650DC/1670DC
1234
5678
90
ALARM HDD NETWORK BACKUP REC
DVD RECORDER
REC
ZOOM
MODE
FREEZE
AUDIO
BACKUP
ALRAM
SEARCH
TELE WIDE VIEW PRESET
MENU
RETURN
USB
OPEN/CLOSE
1 3 4
7 10 6 5
2
9 8
1234
5678
9 101112
13 14 15 16
ALARM HDD NETWORK BACKUP REC
DVD RECORDER
REC
ZOOM
MODE
FREEZE
AUDIO
BACKUP
ALRAM
SEARCH
TELE WIDE VIEW PRESET
MENU
RETURN
USB
OPEN/CLOSE
1 3 4
7 6 5
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OVERVIEW
Part Names Functions
LED Indicator
ALARM : Lights on when an event occurs.
HDD : Displays the normal access to HDD.
Upon access to HDD, LED repeats on and off.
NETWORK : Displays both network connection and data transfer status.
BACKUP : Displays when Backup is in progress.
REC : Lights on when recording is in progress.
Camera Control
PTZ : Sets PTZ Mode ON/OFF.
ZOOM(TELE) : Sets the screen to the x2 digital zoom.
Runs the TELE function in the PTZ Mode.
FREEZE(WIDE) : Runs the FREEZE function in the Live Mode.
Runs the WIDE function in the PTZ Mode.
BACKUP(VIEW) : Runs the BACKUP function.
Runs the Preset View function in the PTZ Mode.
SEARCH(PRESET) : Goes to the search screen.
Runs the Preset Setup function in the PTZ Mode.
REC Starts or ends the recording.
/
Step Rewind () : Used for backward frame-by-frame search while in PAUSE.
Fast Rewind () : Used for quick backward search while in Play.
(-x2, -x4, -x8, -x16, -x32, -x64)
Stop : Used to stop the playback.
►/Play/Pause : Used to pause or resume the screen.
/Fast Forward () : Used for quick forward playback. (x2, x4, x8, x16, x32, x64)
Step Forward ( ) : Used for forward frame-by-frame search while in PAUSE.
Direction /
Select Button
Used to change a value or move the cursor up/down/left/right (◄ ►).
Selects a menu item or executes the selected menu.
USB Port 1 / 2 Connects the USB devices.
MODE
Each button press in the Live Mode switches the screen to 16-, 9-, 4-, 6-, 8-, 13- split screen,
PIP, and auto sequence mode in order.
In play mode, each press of the button will switch the screen mode to 16-, 9-, 4-, 1-, and
13-split in order. (1 live channel + (N-1) live channel)
AUDIO Sets Audio ON/OFF.
ALARM Cancels the ALARM LED and the audible alarm when the alarm is going off, and to remove the
icon.
MENU/RETURN Either goes to the system menu screen or moves to the upper menu from the lower menu.
Channel Used to select channel numbers directly in the Live Mode, or numbers in the numeric input
mode.
Jog shuttle
When a scroll bar appears in each menu, acts as a scrolling.
In Play mode, - Jog : Pauses the playback and steps backward or forward.
- Shuttle : Fast playback forward or backward.
OPEN/CLOSE Used to open and close the DVR-RW disc tray.
Power Power LED : Displays the power ON/OFF status.
Power Button : Used to turn the DVR ON/OFF.

10_ overview
overview
PART NAMES AND FUNCTIONS (REAR)
830DC
1610DC/1630DC
850DC
1650DC
13 24 5 6 9 10 11 12 1413
13 24 5 6 9 10 11 12 1413
13 24 5 6 7 8 9 10 11 12 1413
13 24 5 6 7 8 9 10 11 12 1413

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OVERVIEW
870DC
1670DC
13 24 5 6 7 8 9 10 11 12 1413
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12_ overview
overview
Part Names Functions
AUDIO IN
Audio input signal port (RCA jack) and port for optional audio extension cable.
SRD-1650DC/1670DC (Audio 5~16CH)
SRD-850DC/870DC (Audio 5~8CH)
AUDIO OUT Audio Signal Output Port (RCA jack).
VIDEO IN Composite Video Signal Input Port (BNC type connector).
LOOP OUT Used to transfer a video signal to other video devices.
VIDEO OUT Composite Video Signal Output Port (BNC type connector).
VGA VGA Video Signal Output Port.
HDMI HDMI connector port.
eSATA 1/2 Ports used for external storage device connections. (SATA HDD)
NETWORK NETWORK connector port.
USB USB connector port.
RS-485 Used for RS-485 communication. (TX+, TX-, RX+, RX-)
ALARM
- ALARM IN 1~16(SRD-1610DC/1630DC/1650DC/1670DC) : Alarm Input port.
- ALARM IN 1~8(SRD-830DC/850DC/870DC) : Alarm Input port.
- ALARM RESET IN : Alarm Reset port.
- ALARM OUT 1~4 : Alarm Output port.
SPOT
A live screen output port, separate from the VIDEO OUT.
SPOT 1 : Supports Single, 4-, 9-, 16-split, and Auto Sequence modes
SPOT 2 : Supports Single, 4-split, and Auto Sequence modes (only for 5 ~ 8 CH).
SPOT 3 : Supports Single, 4-split, and Auto Sequence modes (only for 9 ~ 12 CH).
SPOT 4 : Supports Single, 4-split, and Auto Sequence modes (only for 13 ~ 16 CH).
SRD-1670DC : SPOT 1, 2, 3, 4
SRD-870DC : SPOT 1, 2
SRD-830DC/850DC/1610DC/1630DC/1650DC : SPOT 1
AC 100-240V~ IN AC 100 ~ 230V (PAL)
AC 110 ~ 220V (NTSC)

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OVERVIEW
REMOTE CONTROL
Using the numeric buttons
CHANNEL 1–9 Press each button between 1 to 9.
CHANNEL 10 Press the [+10] button first, then press the 0 button again within 3 seconds.
CHANNEL 11–16 Press the [+10] button first, then press any number between 1 to 6 within 3 seconds.
Changing the Remote Control ID
Press the ID button of the remote control and check the ID displayed on the DVR screen.
The factory default ID of the remote control is 00.
Enter 2 digits of your selection in order, while pressing the system [ID] button.
When ID input is done, press the system [ID] button again to check the setting.
If you want to change the remote control ID to 08: Press 0 and 8 in order while the system [ID] button is pressed.
Remote control's ID and DVR’s ID should be matched for proper operation. Refer to “Remote Devices”. (Page 48)
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SEARCH
Displays the search menu.
POWER
Displays the Exit pop up screen.
NUMBER [0~+10]
Used as the numeric input keys, or displays a single
channel.
T/W
Zooms in or out.
BACKUP
Displays the Backup Menu.
MODE
Changes the screen mode.
MENU
Goes to the system menu screen.
Up/Down/Left/Right(▲▼◄ ►)/ENTER
Moves the cursor up/down/left/right, and runs the
Select Menu.
FREEZE
Freezes the screen temporarily.
ZOOM
Runs the digital zoom (x2) function.
VIEW
Runs the View function in the PTZ mode.
OPEN/CLOSE
Opens or closes the CD tray.
DVR
Activates the DVR function.
ID
Sets the ID of the system.
Select 2 digits from 0 ~ 9 while pressing the ID Key.
PTZ
Displays or ends PTZ.
SCROLL ,.
Moves the menu scroll.
RETURN
Returns to the previous screen.
AUDIO
Turns Audio on/off.
ALARM
Cancels the Alarm.
REC LOCK
Selects the recording lock function.
PRESET
Displays the Preset Setup.
REC
Starts or ends the live recording.
Skip Backward (by unit time),
Slow Rewind, Slow Forward,
Skip Forward (by unit time) Move Frame
While paused, moves to the previous/next frame.
FR, STOP, PLAY/PAUSE, FF

14_ installation
Please take note of the followings before using this product.
Do not use the product outdoor.
Do not spill water or liquid in the connection part of the product.
Do not impose the system to excessive shock or force.
Do not pull out the power plug forcefully.
Do not disassemble the product on your own.
Do not exceed the rated input/output range.
Use a certified power cord only.
For the product with an input ground, use a grounded power plug.
CHECKING THE INSTALLATION ENVIRONMENT
Samsung Digital Video Recorder (“DVR” hereinafter) is a
state-of-art security device, and contains mass storage hard
disk(s) and critical circuits inside.
When the temperature rises inside the product, the product
may breakdown and the product life be shortened. Please
pay attention to the following recommendations before
installation.
The followings are the recommendations when Samsung DVR is installed on a rack.
Please ensure that the rack inside is not sealed.
Please ensure the air is circulated through the inlet/outlet as shown in the picture.
If the DVR or other devices on a rack is to be stacked as in the picture, provide a
suitable space or install a ventilating opening for air circulation.
For natural air convection, place the inlet at the bottom of the rack and the outlet on
top.
It is strongly recommended that a fan motor is installed at the inlet and the outlet for air
circulation. (Please fit a filter at the inlet to screen dust or foreign substances.)
Please maintain the temperature inside the rack or surrounding areas between 0°C ~
40°C (32°F ~ 104°F) as shown in the figure 1.
Rack Mount Instructions - The following or similar rack-mount instructions are
included with the installation instructions :
A) Elevated Operating Ambient - If installed in a closed or multi-unit rack assembly, the
operating ambient temperature of the rack environment may be greater than room
ambient. Therefore, consideration should be given to installing the equipment in an
environment compatible with the maximum ambient temperature (Tma) specified by
the manufacturer.
B) Reduced Air Flow - Installation of the equipment in a rack should be such that the
amount of air flow required for safe operation of the equipment is not compromised.
C) Mechanical Loading - Mounting of the equipment in the rack should be such that a hazardous condition is
not achieved due to uneven mechanical loading.
D) Circuit Overloading - Consideration should be given to the connection of the equipment to the supply circuit
and the effect that overloading of the circuits might have on overcurrent protection and supply wiring.
Appropriate consideration of equipment nameplate ratings should be used when addressing this concern.
E) Reliable Earthing - Reliable earthing of rack-mounted equipment should be maintained. Particular attention should
be given to supply connections other than direct connections to the branch circuit (e.g. use of power strips).
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One Year: 24HR X 365 DAY =8,760 HR
Temperature
Unit: ºC
Life (Unit: HOURS)
[Figure 1]
[Figure 2]
installation

English _15
INSTALLATION
RACK INSTALLATION
Install the Bracket-Rack as shown in the figure, and then fasten the
screws on both sides (2 screws on each side).
Fix the screws not to be loosened by vibrations.
HDD ADDITION
You can install additional HDDs.
Make sure to unplug the power cord from the wall outlet to prevent possible electric shock, injury or product
damage.
Please consult your provider for further information on HDD installation since improper installation or settings may
damage the product.
Number of HDDs supported : Default 1 HDD + Up to 4 HDDs added
Make sure to unplug the power cord from the wall outlet before proceeding with the installation.
By factory default, the unit is equipped with one HDD.
Cautions for data loss (HDD care)
Please pay attention so that the data inside the HDD is not damaged.
Before adding a HDD, please check the compatibility with this DVR product.
HDD is vulnerable to malfunction due to its sensitive nature especially against shock when operating.
Please ensure that the HDD is free from such shock.
We are not liable for any damage to the HDD incurred by user’s carelessness or miss use..
Cases might cause damage to HDD or recorded data
To minimize the risk of data loss from a damaged HDD, please backup data as often as possible.
Data may be lost due to external impacts during disassembly or installation of the DVR.
HDD may be damaged if the DVR is suddenly stopped by a power cut or power off during operation.
HDD or files stored inside may be damaged if the main body is moved or impacted during the HDD operation.
Cautions when adding a HDD
When adding a HDD, ensure that the cable does not get caught or the insulation does not come off.
Pay attention so as not to lose the disassembly screws or accessories.
If the screws or accessories are not put together correctly, the product may breakdown or not operate properly.
Please check the HDD compatibility before adding a HDD.
Please contact your nearest dealer to obtain the list of compatible devices.
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16_ installation
installation
First, loosen the screws on both sides and remove
the cover.
Disconnect the power and HDD Signal cable from
the existing HDDs, then loosen the screws (x4) in
the left/right and upper sides and remove the upper
brackets.
Install a HDD (x1) on the lower bracket and fix it
with screws.
Firmly secure the screw so that it does not become
loose from vibration.
Install HDDs (x3) on the upper bracket and fix them
with screws.
When the installation of additional HDDs is done,
insert the lower and upper brackets into the DVR
and fix them with the provided screws.
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Upper Bracket
Lower Bracket
Cover
Upper Bracket
Lower
Bracket

English _17
INSTALLATION
When the installation of additional HDDs is done,
connect the power cable and connect the HDD
data cables (SATA Cable) to connectors c~ hon
the main board.
Note that the number of a HDD data calbe is nothing to
do with operation of the HDD. Just make arrangements
of the connectors considering the length of each
connector.
Check if the connectors are properly connected
and there is no problem with wiring, and close the
cover and fix it with screws.
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Cover

18_ connecting with other device
The following figures are based on Model SRD-1670DC.
CONNECTING THE VIDEO, AUDIO, AND MONITOR
CONNECTING THE USB
There are two USB ports at the front and one at the back of the product.
You can connect a USB HDD, USB CD/DVD player, USB memory or mouse to the USB port.
If a USB HDD is connected to the system, recognition and settings are available in “Menu > Setting the Device >
Storage Device”. (Page 46)
This product supports hot-plugging, which connects/removes the USB device during the system operation.
If you use the USB device for Backup purposes, format it with FAT32 on PC if it is not formatted on the DVR.
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connecting with other device
VIDEO IN
AUDIO IN
SPOT AC 100-240V~IN
VIDEO OUT
(VGA)
VIDEO OUT
(composite)
AUDIO OUT
HDMI
VIDEO IN

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CONNECTING WITH OTHER DEVICE
CONNECTING EXTERNAL SATA HDD
SRD-830DC/1610DC/1630DC does not support a port for SATA connection.
There are two external SATA ports on the rear side of the product.
If an external SATA HDD is connected to the system, recognition and settings are available in “Menu > Device >
Storage Device”.
The DVR supports Hot Plug function to allow connection and disconnection of SATA HDD devices while the
system is in use.
Only one SATA HDD can be connected to an external SATA port.
Use a cable shorter than 1 m for the external SATA HDD connections.
CONNECTING POS DEVICE
You can connect a POS device to the RS-232C port on the product’s rear side when you connect it directly with
a RS-232C cable.
Connection setup for the RS-232C port is available in “Menu > Device > POS Devices”, press the
<POS Device Setup> button and set <Baudrate, Parity, Data, Stop bit and Transfer Type>. (Page 49)
CONNECTING THE ALARM INPUT/OUTPUT
The Alarm In/Out port at the back is composed of the following.
Alarm In Port for SRD-830DC/850DC/870DC
Alarm In Port for SRD-1610DC/1630DC/1650DC/1670DC
Alarm Out Port
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20_ connecting with other device
connecting with other device
ALARM IN 1 ~ 8 (SRD-830DC/850DC/870DC) : Alarm Input Port
ALARM IN 1 ~ 16 (SRD-1610DC/1630DC/1650DC/1670DC) : Alarm Input Port
ALARM RESET : On receiving an Alarm Reset signal, the system cancels the current Alarm Input and resumes
sensing.
ALARM OUT 1 ~ 4 : Alarm Output Port
CONNECTING THE RS-485 DEVICE
Connect the RS-485 device through the back port.
You can connect and control the PTZ camera which supports the RS-485 communication.
Transfer Type : You may select either Half Duplex or
Full Duplex as the data transfer type.
Baud Rate : Supported Baud rates are 600/1200/
2400/4800/9600/19200/38400.
Check if the RS-485 device is compatible with the
product first.
Pay attention not to change the polarity (+/–) of the
RS-485 device when connecting it.
Depending on camera’s type, connection polarity can be
different.
For further information, refer to the respective PTZ
Camera’s documentation.
Ex : DVR(TX+/–) ¥SCC-C6433,35(RX+/–)
DVR(TX+/–) ¥SCC-C6403,07(TX+/–)
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ALARM OUT ALARM IN ALARM IN
PTZ device
Half Duplex Type
Data (–)
Data (+)
Full Duplex Type
Rx(+)
Rx(–)
Tx(–)
Tx(+)
Rear
Tx(–)
Tx(+)
Rx(–)
Rx(+)