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VD‑3028 is a high‑capacity wall‑mount copper telephone main distribution frame, built for bulk subscriber line termination and cross‑connection inside building telecom closets, campus communication rooms and branch‑exchange sites. Different from floor‑standing large‑scale MDF racks that occupy substantial floor area, this wall‑hung structure delivers 1380‑pair termination capacity while saving valuable ground space. It adopts screw‑based modular assembly rather than complex welded integral frames, enabling on‑site flexible assembly. Custom dimension variants are supported for project‑specific layout constraints.It centralizes incoming trunk cables and subscriber drop‑lines, serving as the physical cross‑connect hub for analog telephone, DSL and copper‑based communication infrastructures.
1.Space‑Saving Wall‑Mount High‑Density 1380‑Pair Capacity
Most high‑pair‑count MDF units adopt bulky floor‑standing cabinet designs. VD‑3028 mounts directly onto solid wall surfaces, delivering full 1380‑pair termination capability without consuming precious telecom‑room floor space. Perfect for sites with limited floor area but large copper‑line termination requirements, such as multi‑story building basement communication closets.
2. Screw‑Modular Field‑Assembly Architecture
Instead of heavy pre‑welded one‑piece frames shipped as oversized bulky cargo, this model uses screw‑joined modular components. It can be partially disassembled for compact logistics transport, then assembled on‑location by technicians. This lowers shipping costs and simplifies handling inside narrow building access corridors and elevators.
3. Flexible Custom‑Size Support For Project‑Specific Layouts
Beyond the standard dimension H1850 × W550 × D80 mm, the frame allows custom height / width / depth modifications. Integrators can tailor frame dimensions to match pre‑reserved wall niches, existing cabinet rows or special building‑site space restrictions, avoiding forced on‑site re‑construction of wall openings.
4. Rigid Structural Frame Optimised For Wall‑Hung Load‑Bearing
Constructed from high‑strength sheet metal with anti‑corrosion surface treatment. The whole frame distributes the weight of terminal blocks and heavy copper cables evenly across multiple wall‑fixing points. It resists long‑term mechanical deformation caused by hundreds of terminated subscriber cables, guaranteeing stable long‑term wiring performance for copper‑line cross‑connections.
5. Front‑Access‑Oriented Maintenance Layout
All termination and cross‑connection operations are accessible from the front side of the wall‑mounted frame. Technicians complete cable jumpers, line testing and troubleshooting without needing rear‑side working space, which is a major benefit for installation against solid back walls with zero rear clearance.
6. Compatible With Industry‑Standard MDF Terminal Accessories
The frame’s mounting positions are reserved for mainstream terminal blocks, protection units and test modules widely used in global copper‑telecom projects. Users can select matching termination hardware according to local project standards without special custom‑made adapters.
| Category | Specification |
| Model | VD‑3028 |
| Total Termination Capacity | 1380 pair telephone / copper subscriber lines |
| Mounting Style | Wall‑mount installation |
| Standard Dimensions | H:1850 mm × W:550 mm × D:80 mm |
| Assembly Method | Screw‑based modular field assembly |
| Material | Anti‑corrosion treated heavy‑duty sheet metal frame |
| Custom Option | Custom height, width, depth sizes available upon request |
| Applicable Accessories | Compatible with standard MDF terminal blocks, protection & test units |
| Application Medium | Analog telephone lines, DSL copper subscriber cables |
• Multi‑floor apartment / hotel building telecom‑closet copper‑line termination
• Campus and hospital branch communication‑room cross‑connect points
• Small‑to‑medium telephone exchange subscriber distribution nodes
• Renovation projects where floor‑standing MDF racks cannot be deployed
• Structured‑wiring projects requiring high‑capacity wall‑hung distribution
• System‑integrator bulk telecom‑infrastructure tender deployments
| Item | Details |
| Minimum Order | 1 unit |
| Customization | Non‑standard frame dimensions, OEM marking (bulk‑order only) |
| Production Capacity | 180 sets per month |
| Lead Time | 8‑14 working‑days for standard size; 18‑28 working‑days for custom dimensions |
| Packing | Knock‑down foam‑protected export carton for modular components |
| Trade Terms | FOB, CFR, CIF, EXW |
Q: How is VD‑3028 different from floor‑standing MDF distribution frames?
A: Floor‑standing MDF occupies floor space and requires dedicated equipment‑room ground area. VD‑3028 is wall‑mounted, achieving 1380‑pair high‑density termination while saving floor space. Its screw‑modular knock‑down design also optimizes transportation for sites with narrow access passages.
Q: Does wall‑mount installation require special reinforced wall structure?
A: It needs solid bearing‑capable masonry or concrete walls. Hollow thin partition walls are not suitable for direct mounting due to the cumulative weight of frame plus large‑volume copper cables.
Q: Can I change frame dimensions for my on‑site wall‑niche size?
A: Yes. Custom height, width and depth can be manufactured according to customer drawings or dimension requirements for bulk‑order projects.
Q: Are terminal blocks and protection units included in the delivery scope?
A: The listing supplies only the metal distribution‑frame skeleton. Termination blocks and protective modules need separate selection and purchase based on local project specifications.
Q: Can technicians complete screw‑modular assembly on‑site easily?
A: Yes. It comes with assembly drawings and standard screw fasteners; regular telecom technicians can finish frame assembly without special‑purpose tools.
