●Hands-Free Unit (HFU). Provides the voice terminal user with full speakerphone capability. This includes hands-free telephone conversation, on-hook dialing, monitor-on-hold, and teleconferencing at a short distance from the voice terminal. To use this accessory, you must program AUtO Answer- Intercom. The HFU is for use with all analog voice terminals
except 5-button and 10-button HFAI. An HFU used with a 7406D voice terminal requires a local power unit.
●Headset-and-Headset- Adapter. Enables a user to answer and listen to calls without lifting the handset. The headset and headset adapter is for use with all analog voice terminals except 5-button and 10-button HFAI.
●In-Range, Out-of-Building (IROB) Analog Voice Terminal Protectors. A voice terminal can be placed in another location outside of the main building but within 1000 feet of the MERLIN H system control unit. IROB protectors protect the control unit and voice terminal from exposure to lightning, contact with power lines, and power currents induced by nearby power lines.
●Loudspeaker Paging System. An optional loudspeaker paging system allows people with MERLIN II system voice terminals to page co-workers and/or make announcements through loudspeakers.
●Music Coupler. A music coupler connects a music source (such as a cassette player) to the MERLIN II system. It also provides a secondary bridged connection to provide Music-on-Hold. In addition, it allows the music source to be connected to a loudspeaker paging system to provide background music at the same time.
1-34 System Hardware