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RS485 Terminal [485 A / B]
The recorder can control PTZ (Pan/Tilt/Zoom) cameras using RS485 half-duplex serial communications
signals. Connect RX+/TX+ and RX-/ TX- of the control system to the A and B (respectively) of the recorder.
See "Chapter 3 -- Configuration" and the PTZ camera's manual for configuring the RS485 connection.
Alarm Input / Output Terminal [ALARM IN] / [ALARM OUT]
Note: To make connections on the Alarm Terminal Strip, press and hold the button and insert the
wire in the hole below the button. After releasing the button, tug gently on the wire to
make certain it is connected. To disconnect a wire, press and hold the button above the
wire and pull out the wire.
The 4-Channel model has 4 Alarm Input Terminals [AI1] to [AI4].
[AI1] to [AI8] or [AI4] (Alarm Input) : You can use external devices to signal the recorder to react to events.
Mechanical or electrical switches can be wired to the [AI] (Alarm Input) and [GND] (Ground) terminals. The
threshold voltage of electrical switches for [NC] (Normally Closed) is above 2.4 V and for [NO] (Normally
Open) is below 0.3 V, and should be stable at least 0.5 seconds to be detected. The voltage range of alarm
input is from 0 V to 5 V. See "Chapter 3 -- Configuration" for configuring alarm input.
[GND] (Ground) : Connect the ground side of the Alarm input and/or alarm output to the GND terminal.
Note: All the terminals marked GND are common.
[NC]/[NO] (Relay Alarm Outputs) : The recorder can activate external devices such as buzzers or lights.
Connect the device to the [COM] (Common) and [NC] (Normally Closed) or [COM] and [NO] (Normally
Open) terminals. [NC]/[NO] is a relay output which sinks 1 A 30 V
Configuration" for configuring alarm output.
[ARI] (Alarm Reset In) : An external signal to the Alarm Reset In can be used to reset both the Alarm Out
signal and the recorder's internal buzzer. Mechanical or electrical switches can be wired to the [ARI] (Alarm
Reset In) and [GND] (Ground) terminals. The threshold voltage is below 0.3 V and should be stable at least
0.5 seconds to be detected. Connect the wires to the [ARI] (Alarm Reset In) and [GND] (Ground) terminals.
Network Port [10/100BASE-T]
The recorder can be networked using the 10/100Mbps Ethernet connector. Connect a Cat5 cable with an
RJ-45 jack to the recorder connector. The recorder can be networked with a computer for remote monitoring,
searching. See "Chapter 3 -- Configuration" for configuring the Ethernet connections.
Important: The network port is not designed to be connected directly with cable or wire
intended for outdoor use.
Please keep away a cat5 cable and other cable which has a lot of noises,
lightning and surge.
Serial Port [SERIAL]
Reserved.
Audio Input / Output Connector [AUDIO IN 1 to 4] / [AUDIO OUT] (RCA pin jack)
Your recorder can record audio from up to four sources. Connect the audio sources to the Audio Input
Connectors 1 to 4 as needed using RCA jacks.
Connect the Audio Output Connector to your amplifier.
Note: It is the user's responsibility to determine if local laws and regulations permit recording
audio.
The recorder does not have amplified audio output, so you will need a speaker with an
amplifier. The recorder does not have a pre-amplifier for audio input, so the audio input
should be from an amplified source, not directly from a microphone.
16
(maximum). See "Chapter 3 --
peak
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