User manual

Rolera Thunder User Manual 26
I/O Connector
Pinout
The I/O (Input/Output Status) connector provides information about trigger function, DAC, and
TTL signals. Inputs must be at least 3.15 V for a high and less than 0.9 V for a low.
The numbers on the I/O connector diagram correspond to the numbers given to the definition of
each of the pins. The I/O connector is a female, Hirose HR10A connector. An I/O cable (Part # 37-
513-001) to access Trigger Input (Pin 1), Frame Readout (Pin 3), Camera exposing output (Pin 2),
and Shutter Output (Pin 4) is available.
Figure 23. Input/Output Connector
INPUT/OUTPUT (I/O) TABLE
#
I/O INPUT DESCRIPTION
1
Trigger Input
This input is internally tied high through a 4.7kΩ resistor. A rising
edge of the Trigger Input signal initiates the trigger. The trigger
source would normally hold this input low and then drive it high to
initiate the trigger.
2
Camera Exposing Output Active high. A high level on this output indicates that the camera is
exposing (integrating).
3
Frame Readout Active high. A high level on this output indicates that data is being
transferred.
4
Shutter Output TTL output for timing of external shutter driver. Signal is high during
Shutter Open Delay and exposure time. The pin does not provide
power to drive the shutter directly, so an external shutter drive
controller is required.
5
Spare Input Reserved
6
Trigger Ready This output notifies accessory devices that the camera is ready to
receive a trigger.
7
TX Out Accessory Serial Transmit
8
RX IN Accessory Serial Receive
9
Power Status A high level on this output indicates that the camera power is
switched on (+5 V = on, 0 V = off).
10
GND System digital ground. Any external circuitry intended to interface
with the trigger control signals must reference this ground
connection.
Table 4. Input/Output Definitions