Copyright© 1999-2000, Alpha Communications®, All Rights Reserved
42 Central Drive • Farmingdale NY 11735-1202 • Phone (631) 777-5500 • Fax (631) 777-5599
TOLL-FREE 1-800-666-4800 • Web: www.AlphaCommunications.com • Email: email@example.com
Rev. 1 - 07/99
Door Release Adaptor
The Alpha Communications® PK410D adaptor
prevents tenants from opening the door without first
activating the 'TALK' circuit. Before the door can
be opened, the talk button on the intercom must be
pushed; then conversation can be completed be-
fore opening the door.
After the talk button is pushed, the tenant has a 30-
second time limit to open the door. The PK410D is
designed for use with the PK543 amplifier and
IR104E (or equivalent type) apartment room sta-
Integrated circuit technology
• Low power requirements
• Easy installation
Dimensions: Length: 4.75" (120mm)
Width: 2.38" (60mm)
Depth: 2.25" (57mm)
Construction: High-quality electronic components
mounted on a printed circuit board
and housed in a rugged extruded
16 VAC, 10 VA.
Connections: Positive screw terminals
Do to continuous product improvement, all colors, sizes, materials,
finishes and specifications are subject to change without notice.
ARCHITECTS' AND ENGINEERS'
The door release adaptor shall be Alpha Communi-
cations®/Tektone PK410D or approved equal and
shall provide for talk-controlled door release when
used in conjunction with Alpha Communications®
amplifier model PK543 and apartment station model
IR104E (or equivalent).
The adaptor shall have rugged construction and
feature integrated circuit technology. Positive screw
terminals shall be for installation wiring. Contractor
shall observe all local and national electrical and