Tigo Access Point (TAP) 158-00000-02 Wireless Mesh Communication Device

The Tigo Access Point (TAP) 158-00000-02 is a wireless mesh communication device that serves as the link between Tigo TS4 module-level power electronics (MLPE) and the Cloud Connect Advanced (CCA) data logger. Measuring 126.2 × 130.0 × 26.8 mm and mounting directly on the module frame without tools, each TAP covers up to 300 TS4 units within a 35 m (115 ft) radius and connects to the CCA via RS485 cable. Offered as a standalone unit, the 158-00000-02 is intended for installers and integrators who are adding wireless monitoring and rapid shutdown capability to a system where a CCA is already in place, or who are sourcing TAPs separately to expand coverage across a growing array.

Key specifications

• Coverage capacity: up to 300 TS4 units per TAP; maximum distance to farthest TS4 unit 35 m (115 ft)
• Operating voltage: 5–25 VDC (powered by the CCA via the RS485 communication cable); 0.5 W average, 1 W peak consumption
• Connectivity: RS485 cable to CCA (18–22 AWG recommended); supports daisy-chain connection of multiple TAPs
• Compatibility: TS4-A-O, TS4-X-O, TS4-A-S, and TS4-X-S units; up to 7 TAPs per CCA for a total system capacity of 900 TS4 units
• Physical & certifications: 227 g (0.5 lbs); -30°C to 70°C (-22°F to 158°F); IP68/TYPE 3R environmental rating; FCC, IC, CE, UKCA, UL (CSA), IEC certified; NEC rapid shutdown compliant

See every module, not just the string

String inverters report aggregate output — when one module drops due to shading, soiling, or a cell defect, the loss is averaged across the string and easy to miss for weeks or months. The TAP wirelessly collects individual module performance data from each TS4 unit and relays it to the CCA, which surfaces it in the Tigo Energy Intelligence platform as current and historical trends per panel. That visibility translates directly into faster fault identification, more accurate yield-loss attribution, and cleaner documentation for manufacturer warranty claims — all without adding a separate monitoring subscription.

Key applications

• Residential rooftop systems — provides wireless module-level monitoring and rapid shutdown for homes using TS4-A-O, TS4-A-S, TS4-X-O, or TS4-X-S units; a single TAP covers up to 300 modules within a 35 m radius.
• Array coverage expansion — up to 7 TAPs can be daisy-chained to a single CCA via RS485, scaling total system monitoring to 900 TS4 units across larger or multi-zone arrays.
• NEC 690.12 rapid shutdown compliance — the TAP relays grid status to TS4 MLPE units for module-level deactivation, meeting NEC rapid shutdown requirements for residential and commercial rooftops.
• TAP additions to existing Tigo systems — the standalone format is the right choice when a CCA is already installed and additional TAPs are needed to extend wireless coverage to a new array section or roof face.
• TAP replacements in existing installations — a direct swap for a failed TAP in any system where the CCA and TS4 units are already in place.

Powering and pairing the TAP

The 158-00000-02 draws power directly from the CCA via the RS485 communication cable, eliminating the need for a separate power source at the module level. It mounts on the module frame using the included bracket — available in top or side position — without requiring any additional tools. Up to 7 TAPs can be connected to a single CCA in a daisy-chain configuration via RS485 cable (18–22 AWG recommended), with each TAP covering up to 300 TS4 units within a 35 m (115 ft) radius. For new installations without an existing CCA, the TAP is bundled alongside the CCA, DIN rail power supply, and outdoor enclosure in the CCA Kit 348-00000-52 for a complete commission-ready monitoring and rapid shutdown node.

Why choose the Tigo Access Point (TAP) 158-00000-02?

The 158-00000-02 delivers the full TAP feature set as a standalone unit — the practical choice for expanding coverage in existing Tigo systems, replacing a failed TAP, or integrating wireless MLPE communication into a custom installation where the CCA and enclosure are already specified. Its tool-free bracket mounting, CCA-powered operation via RS485, and IP68/TYPE 3R rating make it equally suited to rooftop and ground-mount deployments in any climate. Rapid shutdown compliance through NEC 690.12 ensures the unit meets current code requirements without additional hardware, while compatibility with all major TS4 optimizer and switch variants keeps it flexible across residential and commercial system architectures.