Details: central control rack configured for 3 intercom groups (with adequate amplifier) mic connection box ptt microphone headphone with throat mic (explosion proof) headphone with throat mic (noise compensated) headphone with boommic with water-tight plug(10 mtr cable) mic connection box(explosion proof with inbuilt visual indicator and muting of external speaker combined audio visual alarm (ip-44) device 100 dbfor jet compartment, mcr and engine room (f & a) loud speaker horn type (8-15w) with ip67 loud speaker horn type (8 to 15w) complete set of installation & commissioningmaterial including accessories, etc sets of all intra unit connecting cables tally for all cables (2 nos. for each cable),terminals, equipment etc on board spares documentation loud speaker (1 to 4w) 8-15w horn(ip67) (explosion proof) connectorisation for intercom stw hats & sats for intercom training for intercom monthly warranty extension charge input central rack output amplifier rack microphone station (console fitti
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