SPNIS21

FAQS

• What is ABB SPNIS21?
  It is the Symphony Plus HR Series Cnet network interface module.
• What does SPNIS21 do?
  It is the intelligent front end between a node and Cnet, allowing network nodes to communicate.
• Which module works with SPNIS21?
  ABB explicitly states that it works with SPNPM22.
• Which Cnet rates are documented?
  10 MHz or 2 MHz.
• What power does SPNIS21 require?
  +5 VDC at 825 mA, 4.1 W typical.
• What ambient range is documented?
  0 to 70 degrees C (32 to 158 degrees F).
• What system capacity does ABB list?
  Over 62,000 system nodes, 250 Cnet-to-Cnet interface nodes, and 250 nodes on one network in the documented interface combination.
• Is SPNIS21 the same product as SPNPM22?
  No. SPNIS21 is the Cnet interface; SPNPM22 is the companion network processing module.
• Is SPNIS21 an alias for INNIS21?
  No. ABB presents SP hardware as a later form/fit/function replacement family for grey IN alternatives; the exact model identities remain separate.
• Can SPNIS21 automatically replace INNIS21?
  Not without engineering review. Verify revision, companion module, firmware, rack, cable, termination, and project configuration.
• Which ABB kits include SPNIS21?
  ABB catalog examples include SPICI800 and SPIIL02-L, with model-specific companion modules and hardware.
• Is SPNIS21 currently cataloged?
  Yes, it appears in ABB Symphony Plus Product Catalog Rev G; the exact present formal lifecycle phase remains HOLD.
• Are origin, HS code, dimensions, and weight proven?
  No. They remain HOLD without exact ABB evidence.
• Is an existing ApterPower product ID verified?
  No exact indexed detail page or public product ID was verified; an authenticated duplicate audit is required.