MIL-HDBK-1191
11.12.5.1
Network Operation Modes. Each equipped unit will be an operating
zone of a floor level network. Operating zones and network modes will
function as follows:
11.12.5.2
Operating Zone Mode. Each unit can operate as an independent
zone with all calls from within the unit routed to the local zone master
station in the unit. When in operating zone mode, the local zone master
station has full dedicated use of all system features and intercom channel.
No system busy signals will be allowed.
11.12.5.3
Network Mode. All functions and programmed patient data from any
local zone master station can be captured by and combined with the functions
and patient data of any other master station in the network. Anyone master
station can handle all calls from any combination of operating zones or an
entire network.
11.12.6
Call Types.
The following are the types of calls signaled.
11.12.6.1
Patient Call.
Patient call for routine or priority assistance
from a patient bed.
11.12.6.2
Patient Call Cord Set Disconnect. Patient call cord set has been
disconnected from the patient bedside station (will signal an emergency
call).
11.12.6.3
Emergency Patient or Staff Call. Patient or staff call for
emergency assistance from any patient or emergency call station.
11.12.6.4
Medical Device Alarm. Alarm signal from a patient bedroom
indicating that an attached medical device needs service.
11.12.6.5
Staff Intercom Call.
Staff intercom call from a staff or duty
station location.
11.12.6.6
Reminder Call. Master station attendant call/signal to dispatch
and remind staff that assistance is needed at a patient location as a result
of a patient or staff call.
11.12.7
Tone and Light Call Signal.
11.12.7.1
Call Annunciation. Each call will annunciate throughout a unit by
various combinations of illuminated lights and tones.
11.12.7.2
Annunciator Lights. Light colors, with steady or flashing
illumination, will allow adequate distinction between call types and
priorities.
11.12.7.3
Tone Annunciation. Tone signals will sound at the master, staff
and duty stations only. Tone signals will sound at different intermittent
pulse rates to allow adequate distinction between call types and priorities.
11.12.7.4
Annunciation Coordination. Tone and light signals for each call
type and priority will be consistent for all tone/visual and AVNC systems.
11.12.8
Call Priorities.
11.12.8.1
Call Prioritization.
Processing of calls will be sequenced in a 4
11-16
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