Honeywell 621-9938 Serial I/O Module (SIOM) I/O Power Supply Module 3300/48-01-01-01-00 is a case expansion

3300/48-01-01-01-00 is a case expansion monitor designed for precise measurement with configurable relay modules and environmental resilience

160 mA @ +24 VDC (Isolated)

Load Resistance: Ch1: 0–350 Ω / 0–130 Ω

Data & Monitoring

Honeywell 621-9938 Serial I/O Module (SIOM) I/O Power Supply Module 3300/48-01-01-01-00 is a case expansionOverview 621 9938 is a Honeywell Serial I O Module (SIOM) with dual communication ports and front status LED. Functions Slot installation: N Terminating resistors: 200 300 (2 per SIOM at end of link) Communication Ports: 2 (redundant serial I O lines) Optional accessory: 621 9928R SLS Configuration DIP switches: 4 8 position, 1 4 position SW1 address range: 02032 (step 8)