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User’s Manual
DVR-4TH/8TH/16TH Series
SPECO TECHNOLOGIES 07/10
18
Main Monitor (S-Video/ BNC/ VGA)
S-Video, BNC, and VGA output connectors are available for connecting to a
main monitor. The main monitor displays live image and playback recorded
video in full-screen or multiple window format.
Digital Output (Main Monitor)
A digital output connector is provided for connection to a displaying device
that transfers data digitally to show the best video quality.
Call Monitor (BNC)
The call monitor is used to display full screen video of all installed cameras in
sequence. The BNC call monitor connector allows the user to connect an
optional call monitor to the DVR-4TH/ 8TH/ 16TH series unit. Reference to
dual monitor support in section Dual Main Output
.
Video Input
A group of BNC connectors is provided for video input streams from installed
cameras. The number of connectors equals to the number of channels. The
DVR-4TH/ 8TH/ 16TH series unit has 4/ 8/ 16 BNC connectors on the rear
panel, respectively.
Video Looping
The other group of BNC connectors positioned on the rear panel is for looping
out video input.
RS-232C
The unit provides a RS-232C communication port for sending and receiving
signals.
Alarm I/O & RS-485 Ports
The unit provides Alarm I/O and RS-485 ports that offer users the flexibility
required to connect the unit to other devices.
Refer to appendix Alarm I/O Pin Definition for detailed pin definition on the
Alarm I/O for the DVR-4TH/ 8TH/ 16TH series unit.
NAS
The DVR-4TH/ 8TH/ 16TH series unit can connect to a Network Attached
Storage (NAS) device through this connector to increase storage space and
allow vast recording.