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Total des offres: 54674 + Nouveau 56

total: 39401
02 feb
Addendum: Extension of Closing Date and Amendment to Proposal Documents. Proposals are hereby invited for the impact study for network infrastructure – proposed Private Sector Participation (PSP) for optical fibre network, with consideration of the national rail policy and the recently enacted economic regulation of transport act, within a period of four (4) months. The following paragraphs detail the scope of work required for this demand request: a) They own, operate, and manage telecommunications network infrastructure which is key to safe and reliable freight operations. b) The networks have primarily been deployed for the support of the mission critical systems deployed for the safe movement of trains and pumping control operations of fuel. The fibre network is deployed to ensure connectivity of Relay rooms for the support of the Train Authorization Systems (TAS). In addition to the TAS the fibre optic cable is also responsible to connect Condition Assessment Systems (CAS), Tele-control for substations and Telecommunication High sites. c) The products that are in scope for the proposed PSP is the Optic fibre cables and DWDM. The following paragraph detailed these networks: - The fibre transmission network is made up of more than 9000km of optic fibre cable (Layer 1). TFR’s Layer 1 network consists of 24 – core, 36 – core, and 48 – core fibre cables. - The DWDM Optical Transport Network (Layer 2) provides multiplexing capability of bandwidth services across the Layer 1. The network is supported by over 140 network equipment rooms with approximately 159 Huawei Dense Wavelength Division Multiplexers (DWDM) nodes used for transmitting digital signals. d) Note that there is no common CMDB (Configuration Management Database) for fibre assets: - Resources and tools of trade dedicated to supporting and maintaining the above-listed elements. e) The TPL-owned fibre transmission is made up of 715Km of fibre: - Layer 1: (Passive fibre): 1 x 48 Core – mainly unused (~2 Pairs used) for IT and security services: “Semiexpress” route terminating only at pump stations: included in scope 1 x 24 Core for TPL process network, fully owned and operated by TPL (OT): “Omnibus” route terminating and valve and pump stations: excluded from scope. f) Maintained by TFR. - Layer 2: (Active fibre): • Optical equipment (Layer 2): Cisco Multi-Services-Provisioning-Platform. • End Of life: Support agreement ended in 2019. • Supported on time and material basis. • Monitored from Master Control Centre (MCC) at Durban. g) The other network that is deployed for Train safety is the radio network that consist of the Trunked and conventional radio networks. These networks are out of scope for the proposed PSP. (EN) Ajouter aux favoris
Date limite pour les candidatures en: 11 jours
Client: ONLINE TENDERS

Nombre: 118264969

Country: South Africa

Source: ONLINE TENDERS

02 feb

Nombre: 118264972

Country: South Africa

Source: ONLINE TENDERS

02 feb
Quotations are hereby invited for the following: ICT - Hardware: Supply of various items: • 1 x Shredder; • 2 x Portable power supply to charge laptop; • 1 x Portable projector. Specification: • Personal use shredder 1 - 2 users Shreds up to 8x A4 sheets (80 gsm) Cross cut (P4 Security level) 23L (222 A4 sheets) bin capacity Ultra quiet shredding 58 dBA Shreds staples and credit cards Cool down period (min): 15/30 Manual reverse / forward feature. • Portable Power supply to charge laptop - 10 - 300W of pure power to charge multiple devices simultaneously. Compact and portable design for easy transportation. Ultra-fast charging technology gets you powered up in no time. Numerous output ports are compatible with various devices. Built-in safety features protect your devices from overcharging and short circuits. The large 307WH capacity keeps your devices charged for longer journeys. Quiet operation makes it ideal for indoor and outdoor use. Sturdy construction ensures durability even in rugged environments. • Portable projector - Image Element DLP DMD; • Aspect Ratio: 16:9; • Contrast Ratio 400:1; • Output Resolution 854 x 480 (WVGA); • Input Resolution: General Input 1920 x 1080 (Full HD), Video Input Up to 4K UHD, Projection Distance 0.5 to 3m Screen, Size: 16.1 to 93" x 1 Brightness Up to 250 lumens x 2 Focus Manual Keystone Correction Auto / Manual (Vertical only x 3), Light Source LED (Estimated lifetime: 20,000 hours), Colour Reproduction Full Colour Throw Ratio 1.4:1 Offset 100%, Connectivity Input: Connectivity HDMI 1.4 Yes USB 2.0 (Type A) Yes (2 Ports) x 4, Micro SD Card Reader Yes (Up to 32 GB) Wi-Fi Yes Output Connectivity 3.5mm Stereo Mini Jack Yes Bluetooth 4.2) Wireless Standard Frequency 2.4 / 5 GHz Channel 802.11 a/b/g/n/ac Hardware CPU Quad Core Cortex-A53 (1.5 GHz) RAM 2 GB (DDR3 SDRAM) Built-in Memory 8 GB (User accessible: 4 GB) Operating System Android 7.1.2 Built-In Speaker 2.5 W, 4 O (Mono). Delivery Date: 2025/02/28. (EN) Ajouter aux favoris
Date limite pour les candidatures en: 3 jours
Client: ONLINE TENDERS

Nombre: 118264975

Country: South Africa

Source: ONLINE TENDERS