12
2.2 Rear View
SD Card
RS-232
ALARM DC12V
RS-485
AUDIO
IN
IN
OUT
OUT
VIDEO
TO
MONITOR
TO
MUX'S VCR IN
FROM MUX
MAIN MONITOR
ETHERNET
10/100
I/O
25 26 27 28 29 30 3132 33 34 35 37 38 36VIDEO IN Connector: This BNC connector is used to connect the video output from a camera or a
MUX to the DVR.
FROM MUX MAIN MONITOR Connector:This BNC connector is used to connect the live video output
from a MUX to the DVR.
AUDIO IN Connector:This connector is used to connect the audio output from a camera, a MUX or
other devices to the DVR.
ETHERNET 10/100 Connector: This is one standard RJ-45 connector for 10/100 Mbps Ethernet
networks.
RS-485 Port: The RS-485 com munication ports function as connectors when two or more units are
serially connected to expand the storage capacity.
SD CARD Slot: This is used for system software updating and archiving/accessing critical images.
RS-232 Port: The RS-232 communication port functions as a connector to an external con trol device.
Please refer to RS-232 & RS-485 Protocol for more details.
VIDEO OUT Connector:The connector provides the unit’s composite video signals to a MUX.
MONITOR Connector: The connector provides the unit’s composite video or a MUX’s live signal if
connected to a display device.
AUDIO OUT: This provides the unit’s audio signal to a speaker.
ALARM I/O: This is a 9-PIN D-SUB connector including SWIT CH OUT, GROUND, ALARM OUT, DISK
FULL, RECORD IN, ALARM RESET, and ALARM IN for connecting with external devices. Please
refer to the next section for details.
Plug Inlet: The inlet connects to an external power supply. Connect 12 V DC UL Listed Class 2 Power
Supply.
Wire Catch: The wire catch secures the power cord and keeps it in place (so that it does not droop or
hang loosely).
Ground Screw’s: The ground screw is for chassis terminal.
13
2.3 ALARM In/Out
ALARM IN
ALARM OUT
RECORD IN GROUND
DISK FULL
ALARM RESET
NO CONNECTION NO CONNECTION
SWITCH OUT
12345
6789
ʽTHIS FIGURE IS LOOKED FROM THE REAR
1. GND: Ground Contact.
2. ALARM OUT (OUTPUT): This is an alarm output trigger. Connect this to external devices such
as buzzers or lights. (
5V
0V(Active))
3. DISK FULL (OUTPUT): This is a disk full output trigger. Connect this to external devices such
as buzzers or lights. (
5V
0V(Active))
4. ALARM RESET (INPUT): This pin connects to an alarm-clear device for clearing an alarm.
(
5V
0V(Active))
5. RECORD IN (IN PUT): This pin connects to a record trigger device for starting a record.
(
5V
0V(Active))
6. SWITCH OUT (OUTPUT): This pin, sending out timing signals (fallin g / negative) to a
multiplexer, connects to a multiplexer’s trigger terminal so the multiplexer can switch to use the
same recording speed as the DVR.
7. NO CONNECTION
8. NO CONNECTION
9. ALARM IN (INPUT): This is an alarm input which can be programmed in the menu system to
Normally Open or Normally Closed. (
5V
0V(Active))