Extron PCM 340 (part number 70-656-23) — an adjustable-pipe drop ceiling mount for PoleVault System AV products and projectors up to 50 lbs (22.7 kg).

Projectors and PoleVault-mounted AV gear both need to hang above a suspended ceiling at a precise, repeatable drop, and the PCM 340 is the plate that makes that possible. It secures above the tile grid with turnbuckles and safety wire, then accepts a slotted 25-inch pipe that telescopes from 1.5 to 23 inches of drop in half-inch increments so the installer can dial in the exact throw distance before locking it off. Extron also builds 1- and 2-gang cutouts into the plate for an optional power accessory, and the pipe's slot keeps signal cabling tucked inside rather than run loose above the ceiling.

Key Capabilities

• Supports PoleVault System AV products and projectors to 50 lbs (22.7 kg)
• Adjustable drop from 1.5 in to 23 in in 0.5 in steps
• 25 in slotted pipe with 1.5"-11.5 NPT threading routes cables internally
• Optional 1- and 2-gang cutouts for a power accessory in the base plate
• Aluminum base plate and pipe with a 70,000 psi steel safety tie wire
• CE, c-UL and UL rated with OSHPD anchorage pre-approval

Where It Is Used

Above 2x2 or 2x4 suspended ceiling tiles in boardrooms, classrooms and training rooms where a projector or PoleVault-mounted device needs a fixed, code-compliant drop from the structural ceiling to the image plane.

Specifications at a Glance

• Model: Extron PCM 340, part number 70-656-23
• Maximum load capacity: 50 lbs (22.7 kg)
• Base plate: 1.2 in H x 26.4 in W x 8.0 in D (2.9 x 67.0 x 20.3 cm)
• Product weight: 4.5 lbs (2 kg); shipping weight: 9 lbs (5 kg)
• 3 years parts and labor warranty

Also referenced as Extron PCM340, PCM-340, part number 7065623.