Connect A Radio Clock To The Nvr - EverFocus ENVR8304X 04CH User Manual

The following time synchronization function must work with the radio-controller clock.
Time Sync Enable: Check to enable the time synchronization with the connected
radio-controlled clock.
Time Sync Interval: Select a time sync interval time (by hour) for the NVR to synchronize the
time with the radio-controlled clock.
Time Sync Range: The time sync range means the allowed time difference between the NVR
and the radio clock. If the time difference exceeds the entered time sync range (by second),
the NVR cannot be synchronized unless you manually set up the exact same time as the clock
or within the time sync range.
For example, if the radio-controlled clock time is 12:00:00 and you enter 30 seconds for the
time sync interval, the allowed time difference between the NVR and the clock should be
within 30 seconds which means the NVR time can be 11:59:30 ~ 12:00:30.
Time Sync Range
Radio-controlled Clock time
NVR time
First Sync of: Enter a first sync start time.
Apply To: Click the button to apply the same settings to the desired cameras.

6.3.1.1 Connect a Radio Clock to the NVR

To use a Radio Clock, you need to connect it to the alarm inputs of the NVR.
Connection Diagram:
Connect the positive (+) /negative (-) wires to the alarm inputs (1~4) /(G) of the NVR.
ENVR8304X 4CH:
Alarm Out Alarm In
COM NC G G 4 3 G G 2 1
1~4
G
Alarm I/O of NVR
30 Seconds
12:00:00
11:59:30~12:00:30
ENVR8304X 8CH / 16CH:
+
-
Radio Clock
88
60 Seconds
12:00:00
11:59:00~12:01:00
Alarm In Alarm Out
1~4
G
Alarm I/O of NVR
ECOR HD 16X1 DVR
+
-
Radio Clock