| Sl. No. | Module | Part code | Specification |
| 1 | RS422-HS | FSIM-50-Y01 | No. of Channels: 4 (Full-duplex) UART Speed: 1.0 MBPS USART Speed: 15 Mbps |
| 2 | RS232 | FSIM-50-Y02 | No. of channels: 4 (Full-duplex) UART Speed: 115.2 Kbps |
| 3 | RS485 | FSIM-50-Y03 | No. of channels: 4 (Full-duplex) UART Speed: 115.2 Kbps |
| 4 | LED-SWITCH | FSIM-50-Y05 | No. of IO ports: 8 Selectable Options: LED: 8 ports Switch: 8 ports 4 LED + 4 Switch ports |
| 5 | RS422-LS | FSIM-50-Y07 | No. of channels: 4 (Full-duplex) UART Speed: 1.0 MBPS USART Speed: 300 Kbps (Slew controlled) |
| 6 | ARINC | FSIM-50-Y09 | Dual ARINC Port |
| 7 | CAN | FSIM-50-Y011 | Dual CAN Port |
