Bogen - TWK354 2 WIRE CALL IN MODIFICATION UPC 765368430318

Bogen TWK354 2 WIRE CALL IN MODIFICATION Wire Converter Accessory Group

TWK351 / TWK354 Wire Converter

The model TWK351 is an adapter used in instances where there is existing 3-wire (2-conductor + shield) room wiring. The TWK351 cannot be used with the SCR25A module. If 3-wire operation using the TWK351 wire converter is desired, CA10A call switches must be used (CA11A Call-in switches will not work in this application). The TWK353 is a 3-transformer assembly only used for 2233 systems

Architect and Engineer Specifications A two-wire adapter shall be provided and shall eliminate the need for a three-annunciator lead for call-in signaling with the Multi-Graphic communication systems. When used with Multi-Graphic products, the TWK351 shall provide for normal, urgent, and emergency signaling over two wires. The TWK351 shall provide 24 station positions per card. The system shall be expandable in increments of 24 and shall provide for a maximum of 10 watts of audio power per channel. The TWK351 shall operate from 24V DC, consuming not more than 2.4 watts. It shall connect with system components using plug-in centerline connectors. The TWK353 shall be used for 2233 systems.