PA SYSTEM/ NURSE CALL SYSTEM
PABGM SYSTEM
A paging system allows for one-way communication to a large audience. Regardless of the broadcast source, a one-way paging system lets the speaker provide clear, amplified instructions throughout a facility. The paging employee speaks a message into a telephone and that message is then broadcast through a network of speakers. Messages can also be recorded and broadcast at a later time. 
There are a number of advantages to using a one-way paging system versus other means of mass communication:
Emails are often ignored or captured by spam blockers.
Mass texts depend on a strong, local phone network.
A paging system is hard-wired into the building's infrastructure, allowing reliable mass communication.
A network of speakers ensure that a message is communicated to every area of a building simultaneously. It's also possible to send pages to specific building "zones" if needed.
Another key benefit of a paging system is that no dedicated broadcast mechanism is required. An employee can simply pick up the phone, select the paging system and broadcast to the entire building.
Some Common Use Cases For Paging Systems
Paging systems can be used to send a variety of messages. The most common example of a paging system is rapid communication between employees in a retail setting. A department store cashier can request assistance from another department to answer a customer question. In a similar example, a large manufacturing facility can page an employee who has an incoming call, but is likely not near a specific phone.
One of the most important uses for paging is to warn employees of a fire or other emergency. In those scenarios, there is no more effective means of quickly communicating with your workforce.
NURSE CALL SYSTEM
A basic system consists of patient calling stations, emergency calling stations, a central nurse station, dome lights with possible central corridor horns and duty stations.
Emergency calls are placed from designated EC-103/115 Pull/Push Cord stations which are distinctly identified by the flashing suite dome light and central annunciator suite LED. The Central Nurse’s station will sound a fast pulsing alert tone and trigger any corridor horns that are connected.
All tones may be silenced but the alarm can only be reset from the station that initiated the call. If the nurse fails to respond to the call within a preset period, the tones will re-initiate.
Normal calls are placed from a Call Station which are distinctly identified by the slow fl ashing suite dome light and central annunciator LED. Similar silencing capabilities for emergency calls are provided for normal calls.
When duty stations are used, the system may be remotely silenced and monitored for alarm calls.