NNOI

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====== Cat Interface 9 (CI-9) ======

CI-9 is a plug standard for connecting [[nyamii|Nyamii]] to cyberdecks and stationary setups. They are small oval magnetic plugs with 9 contacts.

  * 2 power pins
  * 2 ground/shield pins
  * 2 high-speed data pins
  * 1 sync/handshake pin
  * 1 safety cutoff pin

**[[cablecat|Cablecats]]** use the full pin set for deep immersion and fast bidirectional transfer.

**[[dreamcat|Dreamcats]]** mainly use the sensory-link and sync lines, with reduced power draw and softer signal limits.

Devices auto-detect species/type and adjust voltage, bandwidth, and immersion depth.

===== Physical Design =====

The plug should be amber, the cable can be any off-the-shelf color. Furthermore, the plug should contain one or multiple LEDs capable of displaying:

  * white -> standby
  * blue -> linked
  * violet -> dreaming
  * red -> fault

===== Safety Features =====

The plug should optimally have an automatic current limiter, a thermal cutoff, a neural feedback dampener and soft-eject so deck-side safety mechanisms work.

===== Port Variant Names =====

  * CI-9S = standard short plug
  * CI-9L = locking port for stationary rigs
  * CI-9M = medical/clinical monitored version
  * CI-9A = adapter format for old cyberdecks

===== Common Slang =====

  * Ninejack
  * Catjack
  * Softjack (for [[dreamcat|Dreamcat]]-safe versions)
  * Hardjack (for industrial [[cablecat|Cablecat]] rigs)