Solutions & Applications
Telecom Network Sync · 5G Infrastructure · Data Center Connectivity · Optical Networks · Critical Networks
Enterprise Campus Optical Interconnect: 10G-400G Transceivers & CWDM for Multi-Building Networks
Full campus optical solution covering 10G to 400G transceivers, AOCs, and CWDM — up to 10 km reach on existing fiber, zero carrier dependency.
10 kmCampus Reach
18λCWDM Per Fiber Pair
10G–400GSpeed Range
1. The Challenge
Enterprise campus networks face a different set of constraints than data centers:
Multi-Building Topology
5–20 buildings spread across a campus need 10–100 Gbps backbone links. Laying new fiber costs $50–200/meter. Maximize existing fiber plant.
Carrier Fiber Dependency
Leased dark fiber from carriers costs $500–2,000/month per pair with 90-day lead times. Campus-owned fiber avoids recurring OPEX entirely.
Bandwidth Growth
Wi-Fi 7 upgrades, security camera migration to 4K, and building management IoT demand 2–4× backbone bandwidth every 3 years.
IT Generalist Operation
Campus IT teams are not optical engineers. They need transceivers that are plug-and-play, standardized, and vendor-interoperable.
2. Campus Architecture
CWDM MUX enables 18 independent wavelengths over a single fiber pair connecting buildings up to 10 km apart. Core, DR site, HPC lab, and office buildings all share the same fiber plant with dedicated λ per link.
| Link Type | Product | Form Factor | Reach | Typical Use |
|---|---|---|---|---|
| Short intra-building | 25G SFP28 AOC | SFP28 | 3–30 m | Floor switch to IDF closet |
| Medium intra-building | 100G QSFP28 AOC | QSFP28 | 3–30 m | Core to distribution switch |
| Inter-building (short) | 100G QSFP28 LR4 | QSFP28 | 10 km SMF | Building A to B (<10 km=""> |
| Inter-building (CWDM) | 100G QSFP28 CWDM4 | QSFP28 | 2 km SMF | 18λ on one fiber pair |
| High-bandwidth backbone | 400G QSFP-DD FR4 | QSFP-DD | 2 km SMF | Core ring, HPC lab uplink |
| Mux | CWDM MUX/DEMUX (18-CH) | 1RU passive | N/A | Consolidate inter-building links |
3. Key Benefits
$0 monthly carrier fiber OPEX — use campus-owned fiber
18λ CWDM channels per fiber pair, 1270–1610 nm
10G–400G one supplier for every campus speed tier
Plug & Play — zero configuration, insert and link comes up
4. Why Apex
| Capability | Why Apex |
|---|---|
| CWDM fiber maximization | 18-channel passive CWDM MUX enables 18 independent 10G/25G/100G links over a single fiber pair. No power, no configuration. |
| Vendor-interoperable coding | All transceivers ship with multi-vendor-compatible coding for Cisco, Juniper, Arista, HPE/Aruba — no "unsupported transceiver" errors. |
| Standardized sparing | A single SKU per speed covers all switch brands. Reduce spares inventory by 60% vs. OEM-locked optics. |
| Same-day shipping | 10G, 25G, 100G, and 400G campus optics ship from stock. Emergency replacements dispatch same day. |
Designing or upgrading a campus optical backbone?
Our campus network engineers will audit your building topology, recommend a CWDM plan, and deliver a full BOM with fiber reach validation — typically within 48 hours.
Email: Info@apexallinone.com | WhatsApp/Phone: +852 9821 3834
