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Schedule II 

Network Elements of Various Services 

Network  

Network elements 

Basic Telephone Service 

PSTN Access 

Copper loop  

(This would include Drop wire or internal wiring, 

Distribution point, Pillar, Cabinet, Transmission  cables, 

and Main distribution frame) 

ISDN  

(This would include Terminal adapters, Network 

termination device, Line termination equipment and 

Exchange termination equipment) 

POTS  

(This would include customer premises apparatus PCO 

terminal, Exchange line card / RLU, other non traffic 

sensitive equipment and Remote Switching Unit (RSU), 

Digital Loop Carrier (DLC) etc.) 

Bulk subscribers (including DID trunk) 

VPT equipment  

(This would include Micro wave equipment,  

MARR equipment, Satellite base equipment) 

Short distance 

Switches  

charging area 

Local exchange (except line card) 

(SDCA) network 

SDCC transit switch / Local cum transit switch  

Transmission media and equipment  

RSU to Local Exchange Transmission Link 

Local exchange to local exchange link 

Exchange to transit switch. 

Interconnection link 

Intra circle long 

Switches  

distance network 

Trunk automated exchange level two (TAX 2) 

Transmission media and equipment  

Transit switch to Transit switch link 

Transit switch to TAX II link 

TAX II to TAX II link 

TAX II to TAX I link 

Interconnection link