FL422:
RS-422 Surge Protector
FL485:
RS-485 lightning protector, 4500V protection
FL-BNC:
BNC video lightning protector, 4500V protection
FL45-E100 Surge Protection Devices For 10/100Mbps Ethernet
Surge Protection Devices For Gigabit Ethernet
Model232I:
RS-232 Isolator Protector, 2500V isolation
Model232D:
Extend RS-232 signal up to 1.2KM, 2500V Isolation
CAN232:
CAN to RS-232 Converter, 9~48VDC, wall mounting
CAN485:
CAN to RS-485 Converter, 9~48VDC, wall mounting
USB8485I:
USB to 8-port RS-485/422 Converter, 2KV Isolation, 9VDC