Block library

Commercial Security CAD blocks

Both halves of a security drawing: the field devices - dome and bullet cameras, access-control keypads - and the head end they report to, alarm panels and equipment racks. The cameras carry aim and field-of-view parameters, so a coverage plan can be drawn rather than sketched.

12 blocks in 1 family. DXF R2018, drawn in inches.

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Families in Commercial Security

Drafting with commercial security blocks

A security or low-voltage drawing shows two things: what sits in the field and what it reports back to. This category covers both with 12 blocks. The field side is dome and bullet cameras, a PIR motion detector, an access-control keypad, a door position switch, a panic button and a CO2 monitor; the head end is the alarm panel, an NVR rack and a server rack, plus a floor safe and a queue stanchion for retail and bank layouts. A low-voltage designer or security integrator draws them on a device plan over the architectural background. There is no single NCS layer for security; T-SECR and E-SECR are both common, with the head-end racks on the telecom room layout.

The cameras are the useful ones. Each carries fov, reach and aim parameters, so the dashed field of view is part of the block: the dome defaults to a 90 degree cone and the bullet to 70 degrees, both at a 48 in drawn reach you can stretch to 240 in. The motion detector draws its coverage as a 90 degree fan, 30 in reach by default. Scale the reach to represent the lens's real useful distance at plan scale, and overlapping cones then show dead zones before the contractor finds them.

Head-end equipment is drawn to real size: the server rack is 24 x 42 in and the NVR rack 24 x 30 in, both with the service face at +Y. Leave working room in front of and behind racks for the door to open and a technician to stand; the manufacturer's clearance sheet governs. The panel it feeds is usually close to an electrical panel, whose NEC 110.26 working space the rack must not intrude on.

Field notes. Keypads and panic buttons are operable parts, so the 2010 ADA Standards reach range of 48 in maximum applies to their mounting height. The door contact inserts on the frame line with the magnet on the leaf, so place it at the latch edge. The CO2 monitor mounts low because CO2 is heavier than air, which is noted on the block.

Download them free as DXF, DWG or PNG, or place and aim the cameras in the CADdillo editor at app.caddillo.com, no AutoCAD required.

Every commercial security block, with its size

Plan-view footprint in inches. Each name opens the block's section on its family page, with DXF, DWG and PNG downloads.

Commercial Security CAD blocks: questions

How do I show camera coverage on a security plan?

Use a camera block that draws its own field of view. The dome camera defaults to a 90 degree cone and the bullet to 70 degrees; field of view runs 20 to 360 degrees, reach 12 to 240 in, and aim 0 to 360 degrees. Set reach to the lens's usable distance at your plan scale and overlapping cones show the gaps.

What size is a server rack in plan view?

The server rack block is 24 x 42 in, with width adjustable 23 to 30 in and depth 36 to 48 in; the NVR rack is 24 x 30 in. Both insert at the back-left corner on the wall line with the service face at +Y. Leave front and rear clearance per the rack manufacturer so doors open fully.

How high should an access-control keypad be mounted?

A keypad is an operable part, so the 2010 ADA Standards reach ranges apply: 48 in maximum above the floor for an unobstructed forward or side reach. The keypad block is 4 x 6 in and inserts at its mount point on the wall line; note the height on the device schedule since plan view cannot show it.

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