621-9938R Honeywell - Serial I/O Module Control Memory Xchange Module Output signal: 4 … 20

Output signal: 4 … 20 mA (overload > 25 mA)

Function: Duplexed Field Control Unit (for Vnet/IP and FIO

I/O & Control Capabilities

Allowable Capacitive Load: 20 nF max

Isolation Voltage: 250V continuous (outputs-to-backplane

621-9938R Honeywell - Serial I/O Module Control Memory Xchange Module Output signal: 4 … 20Overview Honeywell 621 9938R is a Serial I O Module (SIOM) used in redundant serial I O configurations, installed in slot N of the remote Serial I O card file. It controls the serial I O card file and interfaces with the 621 9939 SLM in the processor card file. Specifications Model: 621 9938R Type: Serial I O Module Application: Redundant or nonredundant serial I O configurations Communication Ports: Dual ports for redundant serial I O lines