Avaya LUPCMALL, Инструкция по установке и эксплуатации, Страница: 16 / 68

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5.6. Night Ringer
The PCM Night Ringer signaling feature is designed to alert personnel to incoming calls after normal business hours. The
feature can be activated either by a 90V ring signal or by a contact closure. In the factory default configuration, the night ringer
sounds over all zones, however, a zone group can be programmed which will sound the night ringer only over a user-selected
group of zones.
The night ringer normally sounds a simulated ring tone. The ringer can be programmed to sound a chime tone or a tone
provided by a user-supplied external tone generator (see page 35).
Follow the instructions below for night ringer connections. Refer to the System Programming , Section 11, to set up a night
ringer zone group or to change to ringer tone.
To physically connect the Night Ringer:
1. Make sure that the power is OFF.
2A. For 90V Night Ring (RJ11) Jack Connection
Plug a modular cord into the 90V NGT RNG (RJ11) jack. The center conductors are
used for Station Access. The flanking conductors are for the 90V Night Ring Signal.
2B. For Contact Closure Connection
Screw terminal connections are provided for Night Ring Contact Closure activation.
Maximum contact resistance for contact closure activation is 1000 ohms.
NGT RNG is the contact closure source (+5V).
RT is the contact closure return (GND).
Note:
The Night Ring feature has priority over background music only. There is a
5 second delay after the night ring stops before background music is restored (bridges
inter-ring pause).
3. Reconnect power.
Figure 5-9: 90V Night Ring
RJ11 Connections
Figure 5-10: Night Ring
Contact Closure Connections