SEA-SeaI/O Expansion Units (connect to Base via RS-485)

410N SeaI/O-410N Expansion Module 16 Optically Isolated Input / 16 Reed Relay Output SeaI/O Expansion Module

420N SeaI/O-420N Expansion Module 16 Optically Isolated Input / 8 Form C Relay Output SeaI/O Expansion Module

430N SeaI/O-430N Expansion Module 32 Optically Isolated Input SeaI/O Expansion Module

440N SeaI/O-440N Expansion Module 32 Reed Relay Output SeaI/O Expansion Module

450N SeaI/O-450N Expansion Module 16 Form C Relay Output SeaI/O Expansion Module

464N SeaI/O-462N Expansion Module 96 Channel TTL Digital Interface SeaI/O Expansion Module

463N SeaI/O-463N Expansion Module 96 Channel TTL Digital Interface SeaI/O Expansion Module

470N SeaI/O-470N Expansion Module 16 A/D, 2 D/A, 8 Open-Collector Outputs, 8 Isolated Inputs SeaI/O Expansion Module

520N SeaI/O-520N Expansion Module 8 Optically Isolated Input / 8 High-Current Form C Relay Output SeaI/O Expansion Module

530N SeaI/O-530N Expansion Module 16 Optically Isolated Input / 16 Open-Collector Output SeaI/O Expansion Module