Nurse Call

Network Devices

Network devices are small, discreet and blend perfectly into any sort of decor.

Up to 256 network devices can be used per system, each containing a non-volatile memory to store it’s unique address identification number.

Network devices consist of Call Points, Displays, Monitoring Points, Ceiling Receivers and Addressable Over door Lights.

They do not include ancillary devices such as Slave Over door Lights or Ceiling Pulls, the button on the transmitter or pull it from it’s belt clip to fill the area with infra-red signals.

Network Controller

The Network Controller supplies power to and controls the system.

An RS232 printer port is fitted internally to allow the printing of system setup data and information from the controller’s built-in 500 event data logger.

All programming is carried out at the Network Controller using the front panel buttons under Keyswitch control.

The Network Controller constantly monitors all devices on the network and indicates the exact ID number of any faulty device, helping to simplify fault-finding. The following names and any four alphanumeric characters can be given to devices via a menu in the Network Controller:

Annex, Area, Bathroom, Bedroom, Conservatory, Corridor, Dining room

Disabled WC, Display, Door, Doorbell, Drugs Cab, Entrance, ESMI Unit

Exit, Fire exit, Flat, Floor, Gents WC, Hairdresser, Kitchen, Ladies WC, Laundry

Lift, Lounge, Meeting RM, OD Light, Phone, Quiet Room, Reception, Room, Shower, Sluice, Special Staff Room, Toilet, Treat Room, TV Room, Ward Zone.

Planning an Installation

 The System operates at 24V d.c. and can be compared to a very sophisticated analogue addressable fire alarm system where the wiring of the system is of paramount importance. However, with this system, a ‘star’ rather than a ‘loop’ wiring scheme is used.

In order to allow the use of ordinary unscreened cables and reduce the risk of voltage drop, the ONLY recommended method of wiring system involves the use of ‘Network Splitters’.

These devices have six fused ‘limbs’ for the wiring of individual sections of the system and they provide a convenient way of wiring, testing and protecting the system. In addition to simplifying the wiring and reducing voltage drop, the Network Splitter’s fault and power LEDs also help find installation faults.

Each network splitter has one input and one output network connection (both unfused) and six 'limb' outputs that are fused.

The unfused connections are for the connection of the network ‘Spine’ which should normally be wired in at least 1mm2 cable (e.g. TW&E).

No other networked devices should be connected to the spine except Network Splitters.

The fused outputs i.e.’ Limbs’ are for the connection of individual circuits containing networked devices. These should be wired in four or six core security cable.

In excess of 60 addressable devices can be connected to each network splitter. Consequently four splitters are capable of accommodating an entire system. However, for larger systems and for convenience it is likely that more will be used.

Addressing

As network devices are ‘soft addressed’ after installation no consideration need be made as to how different network devices will interact with each other.

Within rooms, however, ancillary devices must be connected to a call point and it is simplest to loop in and out of slave over door lights (if fitted). If slave over door lights are not fitted, loop in and out of call points.

Caregivers today are increasingly required to provide higher operating efficiencies while simultaneously offering more personalized patient-centered care. Westminster can offer a wide range of nurse call systems to fit your needs and budget.

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