2 0 H a M e s i l a S t . , N e s h e r 3 6 8 8 5 2 0 , I s r a e l
P O B 2 5 0 0 4 , H a i f a 3 1 2 5 0 0 1 , I s r a e l
T e l : ( + 9 7 2 ) - 7 2 - 2 7 2 3 5 0 0 F a x : ( + 9 7 2 ) - 7 2 - 2 7 2 3 5 1 1
Page no. 45 | Appendix No. 1
8.14
Genlock
8.14.1
genlock <mode>
The genlock mechanism is used to synchronize multiple cameras video signals.
Mode
Description
0 (default)
Disabled – the genlock is off and the camera will work in free-run mode
1
Input Slave Auto – automatic genlock signal synchronization.
When the genlock input cable is connected the camera, it will try to lock on the
external tri-level sync signal, otherwise the camera will run in free-run mode. On
lol (loss-of-lock) event the camera will return to free-run mode after specified
timeout (see
command). Image may flicker or even disappear
while camera tries to lock on external tri-level sync signal.
The configured video mode (see
sync signal for successful genlock operation.
2
Input Slave Force – genlock is always active and try to sync on external tri-level sync
signal. Camera will not output any image unless genlock is synchronized.
The configured video mode (see
sync signal for successful genlock operation.
8.14.2
genlock_status
This command is used to check the current genlock status.
Status
Description
0
Genlock is disabled or genlock is enabled and successfully synchronized on external tri-
level sync signal.
1
Genlock is enabled and failed to synchronize on external tri-level sync signal. This status
indicates that either there is no input signal, the reference input signal doesn’t match
the configured video mode or the signal is unstable.
Example:
Command: genlock_status
Response: genlock_status 0
8.14.3
genlock_lol_filter <time_ms>
The loss-of-link (lol) timeout can be configured to prevent glitches in the unstable genlock signal. A loss-of-link is
only registered when an unstable link is detected for more than a specified lol timeout, in which case the
connection will be reset and an attempt will be made to synchronize the signal again. If a camera re-synchronizes
often, it is advised to increase the lol timeout.
Value
Reset
Minimal
Maximal
time_ms
1000
0
10000