site master

The Site Master Family of Handheld Cable and Antenna Analyzers have measurement capabilities which include precision return loss/VSWR, cable loss and distance-to-fault measurements. Patented RF interference rejection enables accurate, repeatable measurements in the presence of high RF activity.

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PROTEKViewer.exe
RF Master Protek A434 GUI Manual
RF Master Protek A434 User's Manual

GPRS flash videos

The purpose of this course is to provide a comprehensive overview of General Packet

Radio Services system, hereafter referred to as the GPRS system, including essential

system design aspects. It is assumed that the reader is already familiar with circuit-

switched communication in GSM (Global System for Mobile Communications) networks.

All abbreviations and terms used in the entire student guide can be found in the Glossary

at the end of the document

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GPRS

Introduction to Mobile Data.rar

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Introduction to Mobile Data.rar

Optical fiber training

 تقنية الألياف البصرية (فايبر) تتيح للعمل الحصول على خدمات قطاع الأعمال الحالية والمستقبلية بالإضافة إلى أحدث خدمات وتطبيقات النطاق العريض (Broadband).

• سرعة اتصال عالية جداً (تصل إلى 2GB).
• نطاق عريض يوفر سعات عالية وسهولة في ترقية السعات حسب الحاجة.
• توفر حلول اتصال عالية الأمان.
• توفر عدة خدمات من خلال نفس شبكة النفاذ.
• تقنية جديرة بالثقة فهي أحد حلول الاتصال الأكثر قوة واستقراراً.
• أعلى مستويات الجودة لخدمات الاتصالات المقدمة من خلالها.
• تضمن التوافق مع حلول الاتصالات المستقبلية كما أنها قابلة للترقية.
• تعمل بشكل دائم مع ضمان الدعم الفني على مدار الساعة.

وهذه ملفات توضح كيفية العمل على الالياف الضوئية ( optical fiber )  والاجهزة المستخدمة مثل ماكينة اللحام وجهاز عمل الاختبار للالياف ( OTDR , splicing machine ) .

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Fiber.pdf

M200 Manual

optical_primer.pdf

CDMA videos from ericsson

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part 1

part 2

part 3

part 4

telecom power supply training

    Power System Overview

Cabinets are classified into AC cabinets and DC cabinets according to the types of input power for cabinets.

The input power for AC cabinets is AC power. It may be single-phase 220V current or three-phase 380V AC, but not all input power for devices/modules inside cabinets is AC. If a cabinet is equipped with AC/DC power components, DC equipment can be installed into AC cabinets. The input power for DC cabinets is DC power. It is generally -48V and the input power for devices/modules inside the cabinet is DC. However, in some cases, if a cabinet is equipped with an inverter (DC/AC power components), AC devices/modules can also be installed into DC cabinets.

However, the Power Distribution Specifications for Service and Software Products DKBA1315-2004.11 determines that only AC devices/modules can be installed into AC cabinets and only DC ones can be installed into DC cabinets. That is, AC devices/modules and DC ones cannot be mixed into one cabinet.

The power supply system for AC and DC cabinets is divided into AC cabinet power supply system and DC cabinet power supply system. AC cabinet power supply system is used to supply cabinets with AC power and DC system is to supply cabinets with DC power.

     Inverter and Power Cable

In the following situations, use inverters:

Customers cannot provide AC power and they can only provide -48V DC power or the AC power provided by customers is not stable but the provided -48V DC power is stable (such as the regions of Africa).

All power supply cabinets are single-phase input and the power sum of all power supply cabinets is not more than 15KVA.

Inverters can only be installed outside cabinets, not inside cabinets and only standalone inverters can be used.

At present, the following inverters are available to Huawei: 3KVA, 6KVA and 10KVA. The power leadin configuration is as follows:

                                                                                                                                 Table 1 Power cable configuration for inverters

Inverter	DC leadin	Protection ground cable
3KVA	1*16mm^2, blue, one piece 1*16mm^2, black, one piece	1*6mm^2, yellow and green, one piece
6 KVA 10KVA	1*35mm^2, blue, two pieces 1*35mm^2, black, two pieces	1*6mm^2, yellow and green, one piece

The default configuration terminals for DC leadins and protection ground cables are OT-xxmm^2-M8 terminals (xx is the cross-sectional area of cable cores) and they are three times as many as cable cores. For example, if one 1*16mm^2 blue cable is to be distributed for surveys, the default configuration is three OT-16mm^2-M8 terminals. Terminals are distributed to sites without processing.

 

 

 

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Fundamentals of Telecom power supply_ems chengaoping

Power supply Installations_040803

PS48100-2-25 PS48300-30

PS481000_2_100 system_ems1

PS481000_5_100 system

PS48300_25 system_ems1

PS48300_3_25 system_021202

PS4835025_20030802

PS48400-3-2900 PS48600-3-2900 Power Supply

PS48400_2C_50 system_ems_021202

PS48600_2D PS48400-2d system_ems1