Yacht Butler

The Navtech Yacht Butler is based on the Xtra-Sense MSL MayDay system; an innovative and highly flexible means of calling for attention on a large yacht. It can also be applied to identify or track the location of on-board crew or guests when the fob transmitter is used.
The principal components of this wireless system simply plug into standard ac socket outlets. The ‘Call’ signal is transmitted through the fixed ac power wiring from one location to another, within the vessel, using a powerful and reliable proprietary data transmission technology.

The system is especially suited to areas where wireless radio based signalling systems are unreliable or limited.

15 Channel / Zone System
The basic Butler 15 system is designed primarily for small to medium size yachts, where up to 15 zones are adequate.

99 Channel / Zone System
The Butler 99 system is a more sophisticated product designed primarily for longer range signalling in the larger yachts and cruise ships, typically requiring more than 15 zones.

The Navtech Yacht Butler System consists of:

‘Butler’ Call Button
A small radio transmitter unit housed in a polished wooded* case for placing on a dining table, cocktail bar or similar, the button is pressed to initiate the request for attention. Pressing the button sends a trigger out to the Transponder unit in the vicinity of the Butler Button; a short range devices that will typically work up to approximately 10m, depending upon local conditions.

Key Fob Trigger
The Key Fob Trigger is a small radio transmitter unit carried by personnel, which is used to initiate the request for attention. Pressing the key fob button sends a trigger out to the Transponder unit in the vicinity. These are short range devices, which will typically work up to approximately 10m depending upon the environment.

Transponder
Transponder units within the range of the push button units will receive the trigger signal, but are programmed to react to specific Butler units. If the Transponder is programmed to react to the trigger, the Transponder beeps to acknowledge receipt of the call and then sends its own MSL coded signal into the ac  wiring.
The coded MSL signal transmitted includes the identity code of the Transponder sending the signal. By knowing the location of the Transponder, the location of the triggering signal can be determined.

Yacht Butler Display Receivers
The Butler Receiver unit monitors the ac wiring for coded signals from any Transponder. When a signal is detected, the ‘Receiver is triggered to decode the signal and indicate the identity of the Transponder that sent the signal.

Butler 15 System
The basic Model 15 system comprises up to 16 Transponder codes and a Display Receiver with a two digit display to illustrate Transponder codes from 0 - 15. (To avoid confusion, the use of code 0 is not used, thus the system is generally limited to 15 codes or zones). In addition to the display, an internal sounder activates to draw attention to the alarm. A single change over relay provides an option to trigger a third party device.

Butler 99 System
The Model 99 system is a high performance system designed for signalling over larger yachts and ships. It offers up to 100 Transponder codes and a Display Receiver with a two digit display to illustrate Transponder codes from 0 - 99. (To avoid confusion, the use of code 0 is not used, thus the system is generally limited to 99 codes or zones).
A key feature of this system is the facility to prevent simultaneous Transponder signals from blocking or interfering with one another.
A large yacht on a single distribution panel can be covered by the 99 Zone System.

By the installation of additional but simple wiring, the system is also capable of operation on yachts which have separate generators and switch panels.