Emcon - TEMPEST North America: +1 (613) 270-9009

Crypton Interface Device

Crypton Interface Device (CID)

Emcon's Crypto Interface Device (CID) offers a low cost solution for interfacing DB-25 terminated shielded cables and TEMPEST fibre optic modems to KG 84 devices. This eliminates the need to use external equipment with military-style 55 pin circular connectors.

The CID is a milled aluminum box equipped with a circular 55 pin mil-connector which mates directly to the KG 84 and a DB-25 connector for connection to system wiring or TEMPEST fibre optic modem.

Sufficient surface area surrounds the DB-25 connector to ensure good electrical bonding to the TEMPEST fibre optic modem or shielded backshell of the cable connector.

The CID is a passive device designed to maintain TEMPEST compliance. The removable cover features a recessed compression gasket which forms an RF tight seal. The shielding performance of the CID exceeds triple shielded cable.

Crypton Interface Device Resources:


  • KG 84 to DB-25 interface
  • Replaces fixed plant adapter
  • Reconfigure connector pin-outs
  • Mates with TEMPEST fibre optic modem or shielded DB-25 backshells
  • Low cost, high productivity
  • Eliminates the need for external equipment
  • Exceeds triple shielded cable for ultimate protection


Crypton Interface Device

Physical: Height: 4.1cm (1.6 in)
Width: 8.9 cm (3.5 in)
Depth: 4.8 cm (1.9 in)
Option: The CID can be configured to suit customer requirements
Warranty: Three-year, parts and labour, return to depot