https://www.cyberdata.net/
As part of a networked security infrastructure, the CyberData Networked Dual Door Strike Relay Module allows monitoring and control of a two of doors when used in a 'mantrap' or 'airlock' configuration. Power for the strikes can be from the internal 12V @ 500 mA supply or from an external source.
Multicast Wall Mount Speaker
The CyberData Clock Kit enables the CyberData V2 Ceiling Speaker for wall mounting.
The SIP-enabled IP Call Button is a Power over Ethernet (PoE 802.3af) device that can be mounted under a desk or in a discrete location. If an event takes place, the user depresses the button.