Aiphone Three Call Master Station

Aiphone TD-3H/B Three Call Handset Master Intercom Station

The Aiphone TD-3H/B is a three call handset master station for multi-channel selective-call intercom systems. This unit operates on loop wiring and is fully intermixable, supporting all-master, master-selective or mixed system configurations.

The TD-3H/B provides full-duplex handset communication with up to three talk paths. The handset cradle can be reversed for desk use, and the station supports break-in calling and call extension via buzzer or light. When used in an all-master system, up to four TD-3H/B units can be interconnected with a PS-1225UL power supply.

Key Features

• 3 talk paths for simultaneous communication and paging
• Full-duplex handset communication
• Handset cradle reversible for wall or desk mounting
• Station-select break-in call
• Call extension buzzer or light capability
• Loop wiring topology — intermixable configurations
• All-master, master-selective or mixed system support
• Compatible with DE-UR door station and IF-DA interface adaptor

Technical Specifications

• Power consumption: 70 mA per station
• Communication type: Handset (full-duplex)
• Terminals: C, 1, 2, 3, D, +, -
• Door release contact: N/O dry contact, 30 V AC/DC, 1 A (at DE-UR)
• Mounting: Desk mount or surface mount directly to wall or 1-gang box
• Wire type: 16-conductor overall shield (Aiphone #812216)
• Max wiring distance: 2,200 ft (22 AWG) / 4,800 ft (18 AWG) between TD master stations
• Power supply: PS-1225UL

Dimensions

• 210 mm (H) x 100 mm (W) x 73 mm (D)