The OP5351 features 32 input channels operating at 5V (CMOS/TTL) or 3.3V (LVTTL).
- The 32 channels are grouped into two banks of 16 channels each.
- The signals of each bank are made available to the user at one DB37F connector of the chassis in which the module is installed.
- The voltage input for each bank is configurable for either 5V (CMOS/TTL Logic ) or 3.3V (LVTTL)
- The OP5351 is galvanically isolated to real environment signals, providing protection to the simulator from damaging voltages.
- All inputs are sampled simultaneously.
Each channel implements the circuit shown below:
Voltage Jumper Settings
Each group of 16 channel can be configured for 5V or 3.3V operation, using the jumpers P3 and P4:
Typical Use Cases
The card is ideal for interfacing with devices operating at low voltage.
TTL signals are not recommended for long-distance data transmission. We recommend using this board with cable lengths no longer than 1.5 meters (5 ft). When using longer lengths, OPAL-RT recommends terminating the lines to avoid over/undershoots or using alternative transmissions, such as differential mode (e.g: LVDS OP5355-3, RS422 OP5356-5 [5V] or OP5355-3 [3V3]).
For details on how to terminate the lines and to interconnect equipment with the OP5351 board, refer to the WP CMOS/TTL opal RT_rev 1.0.