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Technical Specifications
Xtium-CL MX4 User's Manual
Note 3.4: Interfacing to an Open Collector Output
RS-422 (+) input
RS-422 (-) input
FG/system GND
DC
Bias Voltage
Vcc/2
GND
Frame Grabber System
Interfacing Open Collector Output to RS-422 Inputs
Generic Open Collector Output
Vcc
Vcc
Pull-up resistor needed if it is not
already present in the Shaft Encoder.
Value depends on the characteristics
of the Shaft Encoder Output.
100 ohm
J5: Multi-Board Sync / Bi-directional General I/Os
There are 8 bi-directional General I/Os that can be interconnected between multiple boards. These
bi-directional I/Os can be read/written by Sapera application. Bi-directional General I/Os no.1 and
no.2 also can also act as the multi-board sync I/Os.
The multi-board sync feature permits interconnecting multiple Xtium boards to synchronize
acquisitions to one or two triggers or events. The trigger source origin can be either an external
signal or a software control signal. The board sending the trigger(s) is the “Sync Master” board,
while the one or more boards receiving the control signal(s) are “Sync Slaves”.
Setup of the boards is done either by setting parameters via a Sapera application or by using
CamExpert to configure two camera files (.ccf). For testing purposes, two instances of CamExpert
(one for each board) can be run on the system where the frame grabbers are installed.
Hardware Preparation
Interconnect two, three, or four Xtium boards via their J5 connector using the OR-YXCC-
BSYNC20 cable (for 2 boards) or the OR-YXCC-BSYNC40 cable (see Board Sync Cable Assembly
OR-YXCC-BSYNC40 for 3 or 4 boards).
Configuration via Sapera Application Programming
Sync Master Board Software Setup: Choose one Xtium as “Sync Master”. The Sapera
parameter
CORACQ_PRM_BOARD_SYNC_OUTPUT1_SOURCE and/or
CORACQ_PRM_BOARD_SYNC_OUTPUT2_SOURCE select the signal(s) to send to the “Sync Slave”
boards
.
Other “Sync Master” board parameters are set as for any external trigger application, such as
External Trigger enable, detection, and level. See Sapera documentation for more details.
Sync Slave Board Software Setup: The Sapera parameter
CORACQ_PRM_EXT_TRIGGER_SOURCE and/or CORACQ_PRM_EXT_LINE_TRIGGER_SOURCE
are set to Board Sync #1 or #2.
