▁the ▁track side ▁equipment ▁is ▁from ▁– ▁ 6 0   ° C ▁up ▁to ▁+ ▁ 8 5   ° C . ▁E SS O ▁does ▁not ▁require ▁any ▁special ▁communication ▁line . ▁The ▁system ▁oper ates ▁in ▁conditions ▁of ▁un st ead y ▁power ▁supply . ▁E SS O ▁has ▁compact ▁space - s aving ▁design ▁and ▁can ▁be ▁easy ▁installed ▁at ▁any ▁type ▁of ▁track . ▁The ▁system ▁is ▁adapt able ▁to ▁different ▁signal ing ▁systems . ▁ ▁M PT s - I ▁ ▁Computer - based ▁inter lock ing ▁system ▁for ▁points ▁and ▁signals ▁M PT s - I ▁is ▁designed ▁for ▁central ized ▁control ▁of ▁track side ▁equipment , ▁i . e . ▁points , ▁signals , ▁level ▁cross ings , ▁etc . ▁at ▁the ▁railway ▁stations ▁to ▁ensure ▁traffic ▁working ▁with ▁high ▁degree ▁of ▁safety ▁using ▁the ▁modern ▁micro processor ▁technology . ▁The ▁computer - based ▁inter lock ing ▁system ▁is ▁a ▁functional ▁analog ▁of ▁the ▁relay - type ▁elect rical ▁inter lock ing ▁systems . ▁M PT s - I ▁is ▁intended ▁for ▁construction ▁of ▁new ▁and ▁updating ▁existing ▁elect rical ▁inter lock ing ▁systems . ▁ ▁S IR - E SS O ▁ ▁S IR - E SS O ▁implements ▁algorithm ▁of ▁automatic ▁block ▁system ▁with ▁the ▁instructions ▁for ▁signal ing ▁equipment ▁control ▁and ▁actions ▁of ▁the ▁station ▁operator ▁reserved . ▁S IR - E SS O ▁is ▁designed ▁to ▁be ▁used ▁as ▁the ▁basic ▁equipment ▁of ▁inter mitt ent ▁train ▁operation ▁control ▁system ▁on