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OPTOMER Cable Reserve Frames
OPTOMER offers three cable reserve frame models: SZ-2, SZ-2.2, and SZ-2.3. Each model differs in capacity, construction, and intended application, making it possible to select the right solution for both small FTTH installations and large-scale operator networks.
What is a cable reserve frame used for?
A cable reserve frame enables safe storage and management of excess fiber optic or telecommunication cable in a single location.
The solution helps to:
maintain the correct cable bending radius,
organize cable reserves,
reduce the risk of mechanical damage,
prepare the infrastructure for future network expansion,
simplify maintenance and service operations.
Three frame models for different applications. Compare the differences.
SZ-2 – Lightweight and Cost-Effective
An aluminum frame designed for a single cable reserve. Ideal for smaller cable reserves and installations where low weight and simple installation are important. A practical choice for standard FTTH deployments and local access networks.
SZ-2.2 – Two Cable Reserves, Higher Capacity
A stainless steel frame designed to store two separate cable reserves. Suitable for locations where two independent cables must be organized within a single installation point, such as during network expansion projects.
SZ-2.3 – Maximum Capacity and Flexibility
A steel frame with adjustable arms that can be set in three positions to accommodate different cable reserve volumes. Suitable for cable diameters up to 20 mm and cable capacities of up to 700 m. Recommended for large linear cable reserves in backbone and operator networks.
Installation and Cable Securing
The installation principle is similar for all three models. The frame is mounted to a wall using the supplied mounting kit and four fixing points. The cable is coiled into even loops, placed on the frame arms, and secured with cable ties to prevent unwinding.
The mounting hole spacing differs between models. SZ-2 and SZ-2.2 require a 300 × 300 mm fixing pattern, while SZ-2.3 uses a smaller 220 × 220 mm fixing pattern. For the SZ-2.3 model, the adjustable arms must additionally be set to one of three positions according to the planned cable reserve capacity.
Frequently Asked Questions
Which frame offers the highest cable capacity?
The SZ-2.3 model can accommodate up to 700 m of cable, depending on cable diameter.
Which model can store two cable reserves?
SZ-2.2.
Which model supports the largest cable diameters?
SZ-2.3 supports cable diameters up to 20 mm.
Can these frames be used in FTTH networks?
Yes. The SZ-2 model is particularly popular in FTTH deployments.
Can all frame models be installed inside the foundation of an outdoor cabinet?
Yes. According to the manufacturer’s documentation, SZ-2, SZ-2.2, and SZ-2.3 can be installed inside outdoor cabinet foundations as an alternative where the construction of a telecommunication manhole is not feasible.
Can the SZ-2.3 be adjusted for smaller cable reserves?
Yes. The adjustable arms can be set in three positions, providing coiled cable diameters of 680 mm, 780 mm, or 880 mm.
Are these frames suitable for telecommunication manholes?
Yes. All three models are designed for installation in telecommunication manholes and cable chambers.
| Parameter | SZ-2 | SZ-2.2 | SZ-2.3 |
|---|---|---|---|
| Material | Aluminium | Stainless steel / Aluminium | Steel |
| Color | RAL 7035 | RAL 7035 | RAL 7035 |
| Weight | 0.9 kg | 2.2 kg / 1.5 kg | 4.4 kg |
| Dimensions (W × H × D) | 550 × 550 × 118 mm | 620 × 620 × 170 mm / 610 × 610 × 170 mm |
680–880 × 680–880 × 185 mm (adjustable) |
| Mounting | 4 × Ø7 mm holes, 300 × 300 mm spacing |
4 × Ø7 mm holes, 300 × 300 mm spacing |
4 × Ø7 mm holes, 220 × 220 mm spacing |
| Cable Diameter Range | Ø7–13 mm | Ø10–14 mm | Ø7–20 mm |
| Maximum Capacity | 210 m (Ø7 mm cable) | 200 m (Ø10 mm cable) | 700 m (Ø7 mm cable, maximum arm extension) |
| Adjustable Arms | No | No | Yes, 3 positions (Ø680 / Ø780 / Ø880 mm) |
Cable Capacity by Cable Diameter
| Cable Diameter | SZ-2 | SZ-2.2 | SZ-2.3 (min. – max. arm extension) |
|---|---|---|---|
| Ø7 mm | 210 m | – | 520-700 m |
| Ø8 mm | 160 m | – | 400-540 m |
| Ø9 mm | 120 m | – | 320-440 m |
| Ø10 mm | 100 m | 200 m | 280-370 m |
| Ø11 mm | 50 m | 150 m | 240-320 m |
| Ø12 mm | 20 m | 80 m | 170-250 m |
| Ø13 mm | 10 m | 40 m | 100-210 m |
| Ø14 mm | – | 20 m | 80-190 m |
| Ø15 mm | – | – | 40-170 m |
| Ø16 mm | – | – | 20-150 m |
| Ø17 mm | – | – | 100 m |
| Ø18 mm | – | – | 80 m |
| Ø19 mm | – | – | 40 m |
| Ø20 mm | – | – | 20 m |
SZ-2, SZ-2.2, SZ-2.3 cable spare length frames
DESCRIPTION
OPTOMER cable reserve frames are designed for the safe storage and management of cable reserves in telecommunication manholes, cable chambers, and other network infrastructure facilities.
➜ Efficient cable reserve management and organization
➜ Maintains the required minimum cable bending radius
➜ Suitable for a wide range of cable diameters and reserve lengths
➜ Available in versions for storing one or two cable reserves
➜ Models with cable capacities of up to 700 m
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