Lakparinji

Lakparinji Working as a Content Creator, Technical Video Creator...
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❝Born to express, not to impress.❞

Field-Based System Engineer ⚙️ | Railway | AFC | TETRA | SCADA | CBTC | CCTV | Network | Telecom | PAVA | AI | Root Cause Driven | Real Troubleshooting | Building Practical Nepali Tech Community 🚀 Enthusiastic, creative, self-motivated and responsible engineer (Electronics and Communication plus Networking) with leadership skill and social responsibilities.

RAID 5: Speed plus security, ensuring data keeps spinning even when one disk stops.Ready for swapping
24/04/2026

RAID 5: Speed plus security, ensuring data keeps spinning even when one disk stops.

Ready for swapping




24/04/2026

If you can’t explain it simply, you don’t understand it well enough- TechGuffadi fixes that. 🥹😜🎖️🥇



Techguff : Network connector types;🟢 Fiber Optic Connectors (Speed Kings ⚡)👉 Long distance + ultra-high speed👉 Used in I...
24/04/2026

Techguff : Network connector types;

🟢 Fiber Optic Connectors (Speed Kings ⚡)
👉 Long distance + ultra-high speed
👉 Used in ISPs, data centers
• LC Connector –> Most used today
• SC Connector –> FTTH connections
• MTP/MPO Connector –> 40G/100G backbone

🟠 Copper Ethernet (Daily Network 🖥️)
👉 Office, home, LAN
• RJ45 Connector –> Standard LAN port
• Cat6 / Cat6A → up to 10Gbps
• Cat8 → up to 40Gbps (short range)

🔵 Data Center Connectors (Core Power 🔥)
👉 High-speed server connections
• SFP –> 1G
• SFP+ –> 10G
• QSFP –> 40G
• QSFP28 –>100G

📡 RF Connectors (Wireless World)
👉 Antennas, telecom, CCTV
• SMA Connector –> WiFi antennas
• BNC Connector –> CCTV
• N-Type Connector –> Towers

🚆 Industrial / Railway Connectors
👉 Harsh environment (dust, vibration, water)
• M12 Connector –> Rugged Ethernet
• Industrial RJ45 –> Stronger LAN

🧠 Quick Logic
Fiber = Distance + Speed
RJ45 = Everyday network
SFP/QSFP = Data center backbone
RF = Wireless signals
M12 = Industrial strength

💬 Follow TechGuffadi Lakparinji for real-world networking made simple!




23/04/2026

Everybody wants to build, but nobody wants to do maintenance.
-Kurt Vonnegut

𝑻𝒆𝒄𝒉𝒈𝒖𝒇𝒇 𝑵𝒆𝒕𝒘𝒐𝒓𝒌 𝑺𝒆𝒓𝒊𝒆𝒔 - 𝑷𝒂𝒓𝒕 7:- 𝑭𝑻𝑻𝑯 𝑭𝒊𝒆𝒍𝒅 𝑰𝒏𝒔𝒕𝒂𝒍𝒍𝒂𝒕𝒊𝒐𝒏 𝑮𝒖𝒊𝒅𝒆​Here is FTTH (Fiber to the Home) journey:​Simplified 3-...
22/04/2026

𝑻𝒆𝒄𝒉𝒈𝒖𝒇𝒇 𝑵𝒆𝒕𝒘𝒐𝒓𝒌 𝑺𝒆𝒓𝒊𝒆𝒔 - 𝑷𝒂𝒓𝒕 7:- 𝑭𝑻𝑻𝑯 𝑭𝒊𝒆𝒍𝒅 𝑰𝒏𝒔𝒕𝒂𝒍𝒍𝒂𝒕𝒊𝒐𝒏 𝑮𝒖𝒊𝒅𝒆

​Here is FTTH (Fiber to the Home) journey:

​Simplified 3-Step Installation Guide
​⚡ Step 1: Neighborhood Network Connection
We start at the ISP central hub and run the main fiber optic line to the distribution box (FDB) on your nearest utility pole.

​🏡 Step 2: The Home Run
From that pole, we carefully run an individual "Drop Cable" directly to your house, ensuring there are no sharp bends.

​📡 Step 3: Inside Setup & Activation
Once inside, we terminate the fiber, connect it to the ONT (Modem), and finally to your Wi-Fi Router, where we test the signal and activate your service.






Techguff: As a QA/QC Inspector in a railway project 🚆Here are some real site observations and findings 👇🏻🔥 Fiber Managem...
22/04/2026

Techguff: As a QA/QC Inspector in a railway project 🚆
Here are some real site observations and findings 👇🏻

🔥 Fiber Management = Network Stability ko backbone!

यो फोटोमा देखिएको जस्तो Fiber panel मा साना-साना गल्तीले ठूलो समस्या ल्याउन सक्छ 👇

🔴 Exposed Fiber (SNAG-01) → Signal loss + Damage risk
🟡 Wrong Bend Radius (SNAG-02) → Light leakage → Performance drop
🟢 Mis-identified Fiber (SNAG-03) → Troubleshooting nightmare 😵‍💫

👉 Clean routing, सही labeling र proper handling नै professional work को चिन्ह हो।

👉 Fiber neat भएन भने network stable कहिल्यै हुँदैन।

💡 “Good fiber management = Zero headache networking.”






Techguff Networking Series:- Part 6: Subnetting (The Logic Behind the Mask 🎭)Let’s break it down in a real-world way. 💡🍕...
21/04/2026

Techguff Networking Series:- Part 6: Subnetting (The Logic Behind the Mask 🎭)

Let’s break it down in a real-world way. 💡
🍕 1. Why Subnetting? (The Pizza Logic)
👉 एउटा ठूलो network = एउटा ठूलो pizza 🍕
👉 यदि सबैलाई एउटै plate मा serve गरियो भने?

👉 Chaos, congestion, broadcast storm!

Solution? Subnetting.
ठूलो network लाई स-साना logical groups मा बाँड्ने;
✔️ Management सजिलो
✔️ Performance better
✔️ Security stronger

Waste Management 🧠
५ वटा device को लागि पुरै /24 network use गर्नु भनेको resource waste हो।
👉 यहीँ काम लाग्छ VLSM (Variable Length Subnet Mask)

😷 2. The Mask is the Real Game
IP address त नाम मात्र हो…

👉 असली control Subnet Mask ले गर्छ।

यसले छुट्याउँछ:
👉 कुन भाग Network
👉 कुन भाग Host

/24, /25, /30; यी numbers होइनन्,
👉 यी हुन् “boundary walls” 🚧

Pro Tip ⚡
👉 /30 = perfect for Point-to-Point links
किनभने यसमा मात्र 2 usable IP हुन्छन्।

🏆 3. The 3 Golden Questions
Subnetting solve गर्दा सधैं यी 3 कुरा निकाल्नुहोस्:

1️⃣ Network Address
👉 जहाँ subnet सुरु हुन्छ (Not usable)

2️⃣ Broadcast Address
👉 जहाँ subnet सकिन्छ (Not usable)

3️⃣ Valid IP Range
👉 जहाँ तपाईं device assign गर्न सक्नुहुन्छ!

Field Reality 🔍
Binary बिर्सिए पनि एउटा कुरा नबिर्सनुहोस्—
👉 Gateway IP सधैं valid range भित्रै हुनुपर्छ!

🛠️ 4. How to Master Subnetting
❌ Formula मात्र कण्ठ नगर्नुहोस्
✅ Logic बुझ्नुहोस्

✔️ Binary table (128, 64, 32, 16, 8, 4, 2, 1) दिमागमा बसाल्नुहोस्
✔️ CIDR chart आफ्नो wall मा टाँस्नुहोस्
✔️ Daily practice गर्नुहोस्

👉 Example:
192.168.10.50/27
आफैं subnet निकाल्ने challenge लिनुहोस् 💪

😅 Common Student Mistake:

धेरैले के गर्छन्?
👉 Network ID वा Broadcast ID device मा हाल्ने

अनि भन्छन्—
“तैट! Invalid IP देखायो!”

📌 Remember:
यी दुई IP सधैं reserved हुन्छन्।

🔥 Final Techguff Thought:
Subnetting भनेको formula होइन,
👉 यो network design गर्ने “thinking skill” हो।

21/04/2026

Upgrade yourself before the system marks you as "Deprecated."

भन्छु तर सक्दिन यार! 🥹



TechGuff Line:👉 “Good racking looks clean… Great racking makes your network survive.”
21/04/2026

TechGuff Line:
👉 “Good racking looks clean… Great racking makes your network survive.”



Techguff Memories; 📠🎖️My first project; PBX exchange with VoIP (Voice over IP) system Switching cabinet and The Main Dis...
20/04/2026

Techguff Memories; 📠🎖️

My first project; PBX exchange with VoIP (Voice over IP) system Switching cabinet and The Main Distribution Frame (MDF) enhancement project!




💡 Fiber Networking:- The Troubleshooting Masterclass जब Fiber Network डाउन हुन्छ, धेरैले सीधै "Cable Fault" भन्दिन्छन्। ...
20/04/2026

💡 Fiber Networking:- The Troubleshooting Masterclass

जब Fiber Network डाउन हुन्छ, धेरैले सीधै "Cable Fault" भन्दिन्छन्। तर Field Reality अलि बेग्लै छ। Fiber troubleshooting भनेको Guess-work होइन; यो Logic + Tools को गेम हो। 🛠️

1. The LOS Mystery (Loss of Signal) 🔴
Device मा LOS देखिनुको सिधै अर्थ हो- Light पुगिरहेको छैन। यसका मुख्य "Suspects" यिनी हुन्:
√ Physical Cut: Fiber नै ब्रेक भएको।
√ Loose Connection: Connector ठीकसँग नअडिएको।
√ Hardware Fail: SFP module वा OLT port मा समस्या।

2. Attenuation: The Silent Killer 📉
Fiber मा Light ट्राभल गर्दा केही Loss हुनु Normal हो, तर Limit काट्यो भने Disaster सुरु हुन्छ।
Causes: Dirty connectors, sharp bending (Fiber बढी मोडिनु), वा झुर Splicing।
The Fix: Power Meter प्रयोग गरेर dBm चेक गर्ने। यदि Signal Range भन्दा बाहिर छ भने, बुझ्नुस् त्यहाँ "Leakage" छ।

3. OTDR: The X-Ray of Fiber 🩺
जब समस्या कहाँ छ थाहा हुँदैन, तब इन्ट्री हुन्छ OTDR (Optical Time Domain Reflectometer) को। यसले Fiber भित्रको पूर्ण "Map" देखाउँछ।
√ कति Distance मा Cut छ?
√ कुन Splice मा कति Loss छ?

Pro Insight: OTDR ले एउटा सानो ग्राफबाटै नेटवर्कको कुण्डली निकालिदिन्छ। यसलाई Fiber Troubleshooting को X-ray भन्दा फरक पर्दैन।

⚠️ The Golden Rule: Clean Before You Connect!
धेरै जसो Advanced समस्याको समाधान एउटा सानो Cleaning ले गर्छ। फोहोर Connector जोड्नु भनेको धमिलो लेन्सले फोटो खिच्नु जस्तै हो! तपाईँको Data कहिल्यै Clear हुँदैन।

Techguff Bottom Line: Fancy टूल्स भन्दा पहिला आफ्नो Basic सफाइ र Connection चेक गर्नुस्। ९०% समस्या त्यहीँ समाधान हुन्छन्। ✨

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