Telenor Tier 3 Data Center April 2011 About

Telenor Tier 3 Data Center April 2011

About Telenor. Tier 3 Data Center Telenor built it´s own Data Centar in accordance with the latest industrial standards. Telehousing services in Telenor Data Center are available to customers from January 2011. Telenor´s Telehousing services are tailored to the needs of large companies, financial institutions, ISP´s, content providers and others for whom the service availability and the equipment and IT systems security are of primary business importance. Standards • • • Telenor Group Local Standards (SRPS) RATEL regulations ASHRAE recommendations Fire Brigade Regulations TIA-942 (Telecommunications Industry Association) • • Site space and layout Cabling infrastructure Tiered reliability Environmental considerations

Basic Site Infrastruct. Redundant Site Infrastuct. Capacity Components Concurrently Maintainable Site Infrastruct. Fault Tolerant Site Infrastruct. Data Center Tiers • Multi-million dollar business • Two independent utility paths • 99, 995% availability • Fully redundant (2 N+1) • Annual downtime due to • Able to sustain 96 -hour power outage site is 0, 04 hours • Large company • Multiple power and cooling paths • 99, 982% availability • Fault tolerant (N+1) • Annual downtime due to • Able to sustain 72 -hour power outage site is 1, 6 hours • Medium-size business • Single path of power and • 99, 749% availability cooling • Annual downtime due to • Some redundancy in power site is 22, 0 hours and cooling system • Typically small business • Single path of power and • 99, 671% availability cooling • Annual downtime due to • No redundant components site is 28, 8 hours

Telenor Tier 3 Data Center One of the most advanced Data Centers in SEE region • Separatestand alone facilitywith 2. 600 m 2 space with full N+1 redundancyon all mechanical, electrical and connectivity infrastructure • • • Technical space on three floors Loading/delivery docking area Freight elevator, capacity 2, 500 kg Built in the 2009 th with the flat roof and without windows Controlled access to facility via single entrance More emergency exits Accommodation ofuser´stelecommunication equipment • • • Cabinets/racks - Pre-installed standard racks (600 x 1. 070 x 42 U) Cage – optional Data room – optional Space with necessary infrastructure for collocation of storage racks Web portal – real-time monitoring of all relevant service parameters Hands & Eyes services Anti-static floor 2 Raised floor, construction height 65 cm, maximum load 1500 Kg/m Structured cabling (Power cabling under raised floor, Data cabling overhead)

Telenor Tier 3 Data Center Power supply • Two independent 10 k. V underground utility feeders, from different utility transformer substations 110/10 k. V • Mains: 3 x 400/230 V AC, 50 Hz (Dry transformers 10/0. 4 k. V) • Dual power feeds, possibility of maintenance one power branch without affecting the functionality of the system • Redundant UPS systems - 2 x(n+1) with total power 2 x(3 x 400 k. VA), 2 h autonomy • Diesel generator backup for all critical loads, 72 hours autonomy (at full capacity) before refueling, 2 N redundant • Dual UPS power feed for each rack, fused by 1 x 32 A+1 x 32 A • Power supply system with overload protection and protection discriminat (selectivity) of circuit breakers Air conditioning /Cooling • Redundantair-conditioning, free-coolingchillers, indoor CRAC (Computer Room Air Conditioner)units, (N+1) redundancy • • Air-conditioning system separated from the rest of the facility • Concurrentlymaintainableair-conditioningand power supply system withoutthreat to availabilityof the telehousing services Environmentalconditionscontrolsystem maintainingconstantlevels of temperature(22°C - 26°C (24 ± 2°C)) and humidity (40 -60% (50 ± 10%))

Telenor Tier 3 Data Center Security • • • Physical security system with 24 x 7 x 365 access control Video surveillance of the entire facility providingarchive recordings to 3 months Monitoring elements are connected to alarm systems. All doors are built in accordance with WK standard • Electronicaccess controlsystem over ID cards and PIN codes –access allowedonly to pre-definedareas, with continual monitoring • • The security fence around the building of 2. 2 m hight is connected with concrete bollards. Complete site perimeter is secured by IC barriers integrated in existing alarm system. Fire Detection and Suppression • Zoned fire detection system utilising VESDA (Very Early Smoke Detection Aspirating) • • Zoned fire suppression system (IG-55) • The closest fire brigade is 12 minutes away from the facility Fire retarding walls (F 90) Monitoring elements are connected to alarm systems. Smoke detectors are placed on the ceiling and under the raisedfloor; functioningin terms of power failor

Telenor Tier 3 Data Center Communication infrastructure • ~ 2700 km of fiber optic network in Serbia, Hungary and Bulgaria • Multiple connections with local Internet providers and operators • BGP (Border Gateway Protocol) over several Tier 1 ISP`s • DWDM capacity of 40 wavelengths, 10 Gbps per wavelength (expandable up to 80 wavelengths with 40 Gbps per wavelength) • Completely redundant networking equipment with dual power supplies and spare units for all critical equipment • Telenor Serbia is building the best data (All IP) network in Serbia • Services (Dark fiber, Wavelength, SDH capacities, Ethernet solutions) Monitoring • All systems and network are monitored by Telenor`s NOC 24/7/365 • Trouble ticketing system