FRAMOS D455e - Inter Packet Delay; Heartbeat Time; Inter Cam Sync Mode

FRAMOS Industrial Depth Camera D400e Series - User Manual
Version 1.6.0
from 2021-10-15 44 of 64
8.8.2 Inter Packet Delay
The Inter Packet Delay is the delay introduced by the camera between sending two consecutive
packets on the stream channel. This delay reduces the effective network load (on NIC or switch)
and creates timeslots for processing packets from other devices on the network. The Inter Packet
Delay is very useful when multiple cameras are streaming to one PC on the same Network Interface
Card (NIC). For more information, please refer to FRAMOS Industrial Depth Camera D400e Series
- Tuning System For Best Performance [Ref-4].
8.8.3 Heartbeat Time
Heartbeat mechanism is used to determine whether the logical link between D400e camera and
application running on host is active. Host sends the heartbeat command to the camera in regular
intervals and the camera sends a response. If the camera does not respond in a certain interval,
the host considers the camera disconnected. If the camera does not receive a heartbeat command
in the same interval, it considers the host disconnected.
For more information, please refer to document d400e_api_extensions.md (part of the D400e
software package).
8.8.4 Inter Cam Sync Mode
Enables synchronous streaming of multiple cameras and stream synchronization to an external
event. FRAMOS D400e camera provides the following Inter Cam Sync modes:
 Default
 Master
 Slave
 Genlock Mode (only FRAMOS D400e Global Shutter based cameras)
 External Event
 External Event Burst
Inter Cam Sync Mode feature in conjunction with Output Trigger Enabled and User Output Level
features defines the state of the M8 power connector pin 3 (Opto-Isolated Output).
Information: When camera operates in "External Event Mode" or "External Event
Burst Mode", camera internal streams and laser projector are active even if no
external event pulse is applied and no stream is sent to the host. This should
be taken into consideration when designing applications using those operating
modes.
For more information please refer to FRAMOS Industrial Depth Camera D400e Series - External
Event Camera Synchronization [Ref-2] and FRAMOS Industrial Depth Camera D400e Series - Multi-
Camera Synchronization [Ref-3].