112
Loud Bell
Description
The G1-824 digital telephone system provides a relay for various control functions. Two of these
functions are Station Loud Bell and CO Line Loud Bell. The relay is found of the G1-MSC printed circuit
card.
CO Line Loud Bell allows one or more CO lines to be directed to provide an interrupted relay closure
when a CO line detects an incoming call. The relay closure may be used to provide signaling to an
external tone ringer or it may be wired with external equipment so as to switch an AC or DC voltage to
provide power to an external ringing device. See also Relay Assignment, page 138 of this document and
CO Line Programming, page 44 of this document.
Station Loud Bell allows one or more stations to be directed to provide an interrupted relay closure when
the system causes the station(s) to ring. The relay closure may be used to provide signaling to an
external tone ringer or it may be wired with external equipment so as to switch an AC or DC voltage to
provide power to an external ringing device. See also Relay Assignment, page 138 of this document.
Conditions
G1-824
One relay is provided per MSC card. Only one MSC Card can be installed in each system.
Programming
Mode 06, Relay Assignment provides the capability to program the relays for use as Station Loud Bells,
CO Line Loud Bells, or other functions within the system. For more information, please see Relay
Assignment, page 138 of this document.
Mode 40-[STN]-04 is programmed with the selected relay if that relay is to be used in conjunction with a
Loud Bell for the station.
CO Line Loud Bell, Mode 35-[TK]-06 provides the ability to assign individual trunks directly to CO Line
Loud Bell relays. On this Mode, the options exist to assign the CO line to either one of the possible CO
Night Bell Relays. See CO Line Programming, page 44 of this document.
Operation
Once programmed, operation is automatic.
Note:
While CO Loud Bell and Station Loud Bell are mutually exclusive items on the relay assignment
Mode, if a Station Loud Bell is programmed and the programmed station is one of the stations
assigned in a CO Ringing Assignment Mode (Mode 01 - Day Service, Mode 02 - Night Service),
the bell will be activated any time that the programmed station rings, whether ringing is caused by
an intercom call or an incoming CO call.
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