Specifications

CHRONO Series DVR
10
ETC
• Audio Out: The DVR does not have amplified audio output, so you will need a speaker with an amplifier.
• RS-232C: An RS-232C connector is provided to connect an ATM or POS machine for Text-In function. Use a cable with a DB9 (female)
connector to connect to the DVR.
• Network: Connect a Cat5 cable with an RJ-45 connector to the DVR connector for remote monitoring, remote playback, remote setup. See
Chapter 3-2. DVR Configuration for configuring the Network connections.
• USB: Four USB ports are provided to connect external devices like HDD, Flash memory for Backup, System upgrade or USB mouse. Two
USB ports are located on the rear panel and the other two are on the front panel. A USB mouse can only be connected to the front panel‟s
USB port dedicated to the mouse.
• Reset: The DVR has a Reset switch that will only be used to return all the settings to the original factory settings. First, turn off the DVR to
reset the unit. Turn it on again while poking the straightened paperclip in the reset hole. Hold the switch until the DVR initializes.
• Power Connector: Connect the adapter cable to the power connector on the rear panel. (DC12V, 6.67A) Input AC power to the adapter.
(Free voltage from 100V to 240V, 50/60Hz)
Sensor Input
16(8) sensor input connectors are provided to connect external devices. You can use sensors to signal the
DVR of an event. To make connections on the terminal block, press and hold the button and insert the wire
in the hole below the button.
Alarm Output & RS485
16(8) alarm output connectors are provided to connect external alarms such as sirens or lights. 4
alarm output connectors have internal relays and the others are TTL signals.
The RS485 connector can be used to control PTZ cameras. The DVR can also be controlled remotely
by a control keyboard – VT-KBD1.
• Front USB: Two USB ports are provided to connect external devices like HDD, Flash memory for
Backup, System upgrade or USB mouse on the front panel. A USB mouse can be connected only on
the front panel USB port dedicated to the mouse.
Note : This manual covers CHRONO Series DVRs, VT-CN840 and VT-CN1680. The DVRs are identical except for the number of cameras,
audio inputs and alarms. The illustrations and descriptions in this manual refer to VT-CN1680.