Tender Brief : Supply Of supply of 4 wire spt for ibs suitable for ofc communcation. , supply of 4 wire spt for ibs suitable for ofc communcation. each set shall comp rise one no of signal post telephone (spt) master unit (installed in sms office) alone with o ne no. of slave unit(which shall be installed on ibs post). both master and slave must work on 24v dc and must be suitable for (25kvac re area. it shall work on ofc. material should be supply at consignee depot. approval of sample material should be taken from consignee bef ore bulk before. [ warranty period: 30 months after the date of delivery ] ] Read More