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MCS Based Paging and Talk Back System

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Central exchange type paging & talkback system : The Microcontroller based central exchange paging & talkback system consists of:a) Desktop operator console with LCD;b) Central exchangeMicrocontroller unit for 20 FCSs;d) Power supply unit in 19 sub-rack & Rack assembly for mounting the items b, c & d. Desktop operator consoleMicro controller based-with LCD display: Selective, Conf., Group,All call, Emergency siren, comm. with the FCSs in different groups, Date / Time Updation, standby operation, Alert Tone & Display of calling FCS ID (No.), soft keypad, Ergonomic design are the main features. Available in 20/40/60 FCSs/Zones versions. Powder coated MS enclosure provided. Available in Handset / Gooseneck mic models. Cables : a).Signal cable - 6 core 0.5 sq.mm ATC overall pvc sheathed armoured cable;b).Power supply cable - 3 core 1.5 sq.mm ATC overall pvc sheathed armoured cable:c).Loudspeaker Cable - 2 core 0.75 sq.mm ATC overall pvc sheathed armoured cable. Connection: 6 core 0.5sq.mm ATC armoured cable from each FCS is terminated at the MJB. The MJB has terminals for connecting page,private & FS cables. The power supply is extended to all FCSs. The page o/p of each FCS is fed to the page horn speaker thro' a speaker junction box. System Operation: 1). FCS to Master Control Station (MCS): To talk to operator, the field person lifts the FCS handset & presses the FS switch. An audio beep & a blinking LED attracts the attention of the MCS Operator. The numeric ID of the calling FCS is also seen in the LCD in the MCS. If more than one FCS is calling the MCS operator, all the numeric IDs of the calling FCS are on the LCD. Simultaneously an audio beep and a blinking LED is also present. The MCS operator determines the priority by which the FCS are to be contacted. Accordingly he selects the particular top priority FCS from the calling FCS units. The operator converses with the selected FCS in private Mode. Once the call with the FCS is over, the MCS operator selects the next FCS on priority. 2). MCS to FCSs:To talk to a particular FCS, the MCS man lifts the handset & keys in the numeric ID of that FCS; an announcement is heard thro' the page speaker of that FCS. If the FCS operator is nearby, he lifts the handset of the FCS and converses with the MCS operator in pvt. mode. Once the call is over, the handsets are put back in normal position. An alert tone precedes all paging announcements from the console. 3). FCS to FCS : FCS in a particular group/zone can call on page mode the FCSs within the group / zone and converse in private mode. The basic operation of page & party conversation within the zone can be done by all the FCSs in the zone. Whenever a page announcement is made from the zone, it is heard in all the speakers of the other stations in the zone. The wanted person can go to the nearest FCS and talk in private mode. The private conversation now taking place can be heard by any other FCS operator in the zone and can take part in the private conversation, if necessary. The existence of private conversation can be seen by the glow of private LED in all the field stations irrespective of whether a particular FCS operator is taking part in private conversation or not. 4). Additional functions by MCS operator: a). The MCS operator can call a group or groups or all the groups & make a page call or any other announcement as required. An alert tone precedes all paging announcements from the MCS. b). The MCS operator can initiate a siren which will be heard through the page loudspeakers in all the FCS. c). The MCS operator can initiate safety messages thro' an interface unit. * Price indicated is for 1 piece of Central Exchange MCS MJB.


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