Standalone DVR SEC-DVR304 User Manual
10
4.2
SEC-DVR304 Back view
Name
Description
1
Video Input Connectors (1-4)
Connect system cameras to these BNC connectors. The
internal 75
Ω
termination is always ON.
2
Call Monitor Output Connector
(CALL OUT)
Connect TV monitor to this BNC connector for call monitor
display.
3
Main Monitor Output
Connectors (MAIN OUT)
Connect TV monitors to the BNC connector for main
monitor display.
4
Audio Input Connectors
(AUDIO IN)
The RCA connector accepts line-in audio signal supplied
from external devices such as microphone amplifiers.
5
Audio Output Connectors
(AUDIO OUT)
The connector supplies line-out audio signal to external
devices such as speakers. Recorded audio will be
supplied from AUDIO OUT during playback.
6
Main Monitor Output VGA
Connector (MAIN OUT VGA,
optional)
Connect VGA monitor to the optional D-SUB 15-pin female
connector for main monitor display.
7
USB2.0 Connector
Connect to USB 2.0 compatible storage device, such as
USB 2.0 disk drive, DVD+RW, card reader, etc.
8
RS-485 Connector
Connect this connector to RS-485 compatible PTZ
camera(s) or keyboard. Please refer to the manuals come
with the RS-485 compatible devices for the correct settings.
9
Alarm Input Connectors
Connect these connectors to external devices such as
