Optional "Pass-Key Only" Option for Model 4503
Optional "pass-key only" access ensures proper authorized usage of the Model 4503 Seismic-Proof DB9 A/B Switch
Model 4503 was designed to withstand an environment subject to vibrations. This switch and its feed-through connector have successfully passed the rigorous seismic testing of the EPRI "SQURTS" program, qualifying it for use in nuclear power plants.
Model 4503 allows data to pass through all pins of the DB9/F connector interface and switches all pins simultaneously. The Keylock Option provides "pass-key-only" access to switching. Key is captive in B position and removable in A position. Model 4503 switch is available with mounting ears to secure it to a panel.
Model 4503 Features:
- Optional "pass-key only" access ensures proper authorized usage (Catalog No. 304503-Opt-1)
- Optional "mounting ears" allow firm attachment (Catalog No. 512959)
- Optional accessory "feed-through" connector (Catalog No. 513904, DB-9 F/B Adaptor Plate)
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