Technical Insights & Executive IT Guides

When organizations in Dhaka or Chattogram expand into a new floor or factory facility, IT infrastructure is too often treated as an afterthought after interior carpentry and glass partitions are already completed. The result is visible surface conduits, Wi-Fi dead zones in boardrooms, overheated server closets, and unsegmented flat networks. ### 1. Coordinate Early with Interior Architects Before false ceilings and floor tiles are sealed, finalize your floor-box locations, access point ceiling drops, biometric door lock cable conduits, and server room power/AC requirements. Always specify 100% pure solid copper Cat6/Cat6A cabling with 20% spare drops at key workstations. ### 2. Segment Your Network with VLANs Never place corporate laptops, finance servers, IP CCTV cameras, biometric devices, and guest Wi-Fi on a single flat `192.168.1.x/24` subnet. Use managed L2/L3 switches and a Next-Gen Firewall to isolate: - **VLAN 10 (Management & Servers)** - **VLAN 20 (Corporate Staff & Departmental Subnets)** - **VLAN 30 (Voice / IP-PBX with QoS Priority)** - **VLAN 40 (CCTV & Access Control IoT — Blocked from Internet)** - **VLAN 99 (Guest Wi-Fi — Client Isolated)** ### 3. Size Your Server Room Power & Backup Properly Pair your rack servers and core switches with a True Online Double-Conversion UPS (0ms transfer time) and enforce the **3-2-1 Backup Rule**: three copies of critical data, across two storage media (Primary Server RAID + Enterprise NAS), with one encrypted copy replicated off-site.

Export-oriented RMG, textile, and pharmaceutical facilities in Bangladesh are frequently required by international buyers and C-TPAT standards to retain continuous video footage for 30, 60, or 90 days. ### Why Standard Consumer Estimates Fail Many contractors estimate storage using aggressive motion-only assumptions or low-bitrate defaults. In a busy production floor or loading dock with 24/7 movement, motion recording is virtually identical to continuous recording. ### The Engineering Formula For a 4MP IP camera using H.265+ compression at 15 FPS (approx. 1.5 Mbps average bitrate): - **Daily storage per camera**: `1.5 Mbps ÷ 8 × 86,400 seconds ≈ 16.2 GB / day` - **90-day storage per camera**: `16.2 GB × 90 days ≈ 1.46 TB` - **For 64 Cameras (90 Days)**: `64 × 1.46 TB ≈ 93.4 TB usable capacity` (requiring an 8-bay or 16-bay enterprise NVR with 10x 12TB surveillance-grade drives after formatting and RAID parity).

Buying 25 managed PoE switches, a rack server, and 40 IP cameras is fundamentally different from buying a consumer gadget. Enterprise procurement committees, audit teams, and IT heads require: 1. **Technical Compatibility Verification**: Ensuring SFP+ transceivers, PoE wattage budgets, rack rail kits, and licensing tiers match. 2. **Bundled Products + Implementation Services**: Combining hardware supply with structured cabling, VLAN configuration, and AMC support in one unified quotation. 3. **Formal Revision History & Approval Audit Trails**: Tracking `Rev 1` through `Rev N` with clear validity dates, VAT/Tax breakdown, delivery schedules, and official PDF sign-off.