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1200‑Pair Standing‑Type Compliant Single‑Sided Telecom is a floor‑standing open‑frame main distribution frame engineered for medium‑scale telecom equipment‑rooms. Distinct from wall‑mount VD‑3028 and double‑sided VD‑3029, this is a single‑sided standing‑type MDF, delivering 1200‑pair copper‑line termination capacity within compact footprint H1800 × W560 × D150 mm. It is constructed from heavy‑duty cold‑rolled steel and complies with IEC mechanical specifications, acting as central cross‑connect hub for analog telephone and DSL subscriber circuits.
Adopting screw‑based modular assembly design, it supports custom dimension rework. It is well‑suited for projects with moderate line volume, where floor‑standing deployment is preferred but double‑sided working capacity is unnecessary.
1.Single‑Sided Floor‑Standing Layout For 1200‑Pair Moderate Capacity
Unlike wall‑hung units constrained by wall load‑bearing limits or bulky double‑sided frames targeting ultra‑high pair‑count, this single‑sided standing‑type design hits 1200‑pair capacity. All termination and jumper operations are completed from one working plane. It fits equipment‑rooms that have available floor‑space yet do not require dual‑side simultaneous‑maintenance workflows, avoiding over‑investment on excess hardware capacity.
2. Screw‑Modular Knock‑Down Construction Optimised For Logistics
It adopts screw‑joint modular structure instead of integral welded frame. Components can be disassembled for compact packaging. This lowers shipping volume and weight, facilitating transportation into sites with narrow doorways, small elevators or complicated access passages. On‑site technicians assemble the whole frame by standard screws without special welding equipment.
3. IEC‑Standard Cold‑Rolled‑Steel Robust Mechanical Structure
Fabricated from high‑strength cold‑rolled steel with anti‑corrosion surface treatment. Strictly follows IEC dimensional norms. Mounting positions are compatible with mainstream global terminal blocks, surge‑protection modules and test accessories. The rigid frame resists long‑term deformation caused by weight of large‑quantity trunk cables and jumpers.
4. Moderate‑Depth Footprint Optimised For Equipment‑Room Layout
Dimension depth reaches 150 mm, offering adequate rear‑side space for trunk‑cable routing, compared with thinner wall‑mount frames. It reserves proper cable‑bending radius for heavy copper cables and prevents sharp‑bend‑induced conductor damage, while not occupying excessive floor‑space. Multiple frames can be arranged side‑by‑side for capacity expansion when subscriber‑line quantity grows.
5. Flexible Custom‑Size Support For Site‑Specific Constraints
Beyond standard 1800 × 560 × 150 mm dimension, height, width and depth can be modified according to actual equipment‑room layout. It adapts to pre‑planned rack rows or special site space restrictions, eliminating forced reconstruction of machine‑room infrastructure.
6. Front‑Focused Cable‑Routing Design Simplifies Daily O&M
Vertical mounting rails and reserved cable‑guide positions organise jumpers and incoming trunk cables neatly on the operating side. It reduces cable tangling during subscriber‑line re‑allocation, testing and troubleshooting work, lowering daily maintenance workload for telecom operators and system integrators.
| Category | Specification |
| Model | VD‑3028 |
| Total Termination Capacity | 1200‑pair telephone / DSL copper subscriber lines |
| Structure Type | Single‑sided floor‑standing open MDF frame |
| Standard Dimensions | H:1800 mm × W:560 mm × D:150 mm |
| Material | Anti‑corrosion‑treated heavy‑duty cold‑rolled steel |
| Compliance Standard | IEC mechanical dimension standard |
| Assembly Method | Screw‑based knock‑down modular on‑site assembly |
| Installation Mode | Floor‑standing, side‑by‑side row‑deployable |
| Applicable Accessories | Compatible with standard MDF terminal blocks, protection & test modules |
| Application Medium | Analog telephone lines, DSL copper subscriber cables |
• Medium‑sized enterprise and campus secondary telecom equipment‑rooms
• Residential compound intermediate communication nodes with 800‑1200 subscriber lines
• Telecom operator branch‑office moderate‑capacity copper‑line termination projects
• Machine‑rooms with floor‑standing requirement but no need for double‑sided operation
• International tender projects complying with IEC mechanical specifications
• Phased‑expansion projects reserving space for adding extra MDF frames later
| Item | Details |
| Minimum Order | 1 unit |
| Customization | Non‑standard height / width / depth, OEM marking (bulk‑order only) |
| Production Capacity | 150 sets per month |
| Lead Time | 9‑15 working‑days for standard size; 18‑28 working‑days for custom dimensions |
| Packing | Knock‑down shock‑resistant export carton / wooden case |
| Trade Terms | FOB, CFR, CIF, EXW |
Q: How is VD‑6420‑1‑013‑00 different from VD‑3028 and VD‑3029?
A: VD‑3028 is wall‑mount single‑sided 1380‑pair unit, limited by wall‑bearing capacity. VD‑3029 is floor‑standing double‑sided 2400‑pair unit for large‑capacity dual‑side‑O&M. VD‑6420‑1‑013‑00 is floor‑standing single‑sided 1200‑pair MDF, for scenarios needing floor‑standing installation while without demand for double‑sided maintenance. It uses knock‑down screw‑modular packing for better logistics performance.
Q: Does this frame include terminal blocks and protective modules?
A: Only the steel frame skeleton is supplied. Termination blocks, surge‑protection and test‑hardware need separate procurement based on project technical specifications.
Q: Can multiple VD‑6420‑1‑013‑00 frames be arranged side‑by‑side for capacity expansion?
A: Yes. Standard dimension supports row‑by‑side deployment inside telecom‑rooms. Additional frames can be added as subscriber‑line quantity increases for phased‑capacity‑growth projects.
Q: What installation prerequisites are required?
A: It needs flat solid machine‑room floor and reliable earthing points. Since it is single‑sided, only front‑side working‑space needs reserving. The rear‑side space is mainly for trunk‑cable routing.
Q: Is on‑site assembly complicated for field technicians?
A: Complete assembly drawings and matching screw fasteners are provided. Standard telecom technicians can finish knock‑down‑component assembly without special tools or welding operations.
