… and steel doors. Keep removal tamper working. The tamper magnet is inserted into the mounting hole, so an adhesive-only mount defeats it. Wire tamper to a 24-hour circuit. Keep hardware clear of drop seals, gaskets, finger stock and knife e …
The door contact still has to meet every IDS rule. The mount only changes how it's attached. The mount must still deliver Text Source Listed switch "UL 634 HSS level 2. Level 2 rated switches only include Balanced Magnetic Switches that pas …
… option. What the research found: No fetched UL 634 Level II document describes adhesive mounting of the switch or its magnet. The surface-mount specification calls for screw mounting through cross holes, and execution "Per Manufacturer's In …
The RF door is the most delicate part of the shield, and it's installed while the dirtiest trades are still working. Historical: MIL-HDBK-1195 §2.6.2.1 (superseded Navy handbook): "Protective coverings must be provided to protect delicate …
… a metal frame" for UL compliance. "Prepare a deburred 1" hole directly opposite to the mounting site of the magnet module." "All wires must route within the metal frame." Maximum operating gap stated as 1/8 in (3.2 mm). "The tamper circuit …
… where the shield vendor approves No fetched UL 634 Level II document describes adhesive mounting of the switch Not a method for the switch itself; see the adhesive section below Concealed HSS in the frame Standard hollow-metal frames Requir …
How an RF door seals. A normal door has gaps at every edge. An RF door closes them with metal-to-metal contact all the way around: Part What it does Knife-edge A continuous metal blade on the door leaf (or frame) Finger stock Rows of spring …
… conductive elastomeric gaskets." Genisco uses "a gasketed pipe to penetrate into a shielded environment." Premier and Genisco both offer threaded-pipe outputs. ETS-Lindgren's "/PEN" option provides the penetration conduit as part of the fil …
… on the protected side, or factory-prepared frame Practitioner (manufacturer) Adhesive-mounting a UL 634 Level II switch Not a documented method; defeats the removal tamper design Screw to bracket, spacer or strut Practitioner (manufacturer) …
… for understanding what kinds of things an enclosure specification addressed: structure, doors, vents, filters, grounding, testing and warranty. The public mirror doesn't include 94-106's Figure 1 performance values. How vendors use the name …
… anything covers it 4 Power filters, signal filters, waveguides, honeycomb vents and door frames installed and bonded or welded Bond and gasket inspection 5 Single-point ground installed; isolation verified Isolation check before other trade …
Some openings do not fit the single pedestrian door model. The Tech Spec addresses three common cases in §3.E.6. Door type Requirement Roll-up door Minimum 18-gauge steel; secured inside the SCIF with deadbolts on both sides; alarmed Doubl …
… require tight grasping, tight pinching, or twisting of the wrist" FF-L-2890C Hardware mounting height An industry hardware source notes FF-L-2890 hardware mounted 34 in. to 48 in. above finished floor Practitioner (I Dig Hardware) Vault doo …
Practitioners report that door findings frequently delay SCIF inspections, and that most are hardware selection or installation errors. Failure Requirement it breaks Basis Deadlatch or non-QPL lock installed where an FF-L-2890 deadbolt is r …
A door-hardware practitioner writes: "Most SCIF doors fail to pass accreditation as a result of poor installations, not defective products." Trap Why it fails Fix Source type Deadlatch where an FF-L-2890 deadbolt is required Tech Spec 3.E s …
Print this for the trailer wall. It covers shielded rooms and acoustic-only perimeters. Do Don't Get shield-vendor and door-maker attachment and wiring details before rough-in Drive screws, nails, anchors, powder pins or hanger rod through …
The integration is ordinary access control engineering: the detector becomes an input, and ACS logic decides what the inner door does. The discipline is in what the detector must not touch. Signal path Implementation Label Detector to ACS D …
Power isn't the only conductor that crosses a boundary. Every telephone pair, fire alarm loop, door contact, reader cable and data line is a path too. What signal filters do. A signal filter is also low-pass, but it's tuned to pass the want …
Vault doors are covered by Federal Specification AA-D-600D. They belong on vaults and some open storage rooms, not on standard SCIF entrances. Class Lock Forced Covert Surreptitious Notes 5-A (Armory) FF-L-2937 (mechanical) 10 min 30 min ? …
A SCIF perimeter door is a reinforced pedestrian door, not a vault door. Tech Spec §3.E.6 and UFC 4-010-05 §3-4.6.1–3-4.6.6 set the construction. Item Requirement Wood door "1 3/4 inch-thick solid wood core (i.e. wood stave, structural …
Regardless of category, Tech Spec §3.E.5 and UFC 4-010-05 §3-4.6 apply the same baseline to every SCIF perimeter door. Requirement Source and detail Life safety and accessibility Comply with applicable building code, life safety and acces …
Door type Locking hardware (Tech Spec) ACS rule Primary entrance (3.E.2) FF-L-2890 deadbolt plus an FF-L-2740 combination lock (or FF-L-2740 integrated hardware the AO previously approved) Approved access control device; by-pass keyway allo …
An electrified lock or trim on the leaf needs power and signal carried from the frame. On an RF or heavy acoustic door, the path matters. What the published sources say: UFGS 13 49 20.00 10 §2.6.1.5–.6: "Install electric connectivity for …
… terms: Countermeasure What it looks like in a building Shielding Welded or modular shielded rooms, foil-backed wallboard, shielded racks Filtering Power and signal filters where conductors cross the boundary Distance and control of space In …
A shield that passed its acceptance test degrades with use. Doors are the moving part, and they wear first. RF door maintenance items: Item Action Finger stock Keep clean and unpainted. Replace bent or broken fingers. ETS-Lindgren designs t …
Knowledge base · public-level
Ask a question the way you would ask a colleague on the jobsite. SCIF Answers covers ICD 705, the IC Tech Spec, UL 2050 Extent 3, doors and locks, acoustics, RED/BLACK and RF shielding: 344 sections across 19 modules, each one citing the public document it relies on.
Built 12 September 2026. Public-level information only: the Accrediting Official, Cognizant Security Authority and CTTA set the requirements for any real facility. Planning a SCIF or SAPF? Talk to LA CCTV Supply or see SCIF Security.
