621-9938R Honeywell - Serial I/O Module Control Memory Xchange Module Medium Description: For use with

Medium Description: For use with PM 802F or PM 803F

Backplane connector: 1 (short edge)

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

Data input: Four words of analog output from CPU or NIU

Operating Altitude: 2000m (6561 ft)

621-9938R Honeywell - Serial I/O Module Control Memory Xchange Module Medium Description: For use withOverview 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