The Siemens 6GT2701-2CA02 is a SIMATIC RTLS Anchor RTLS4420A — a fixed-position receiver in a real-time locating system that uses Chirp spread-spectrum technology (IEEE 802.15.4a CSS) to track tags across a facility. It is designed for the RTLS4400 system and mounts on a standard DIN rail (DIN 60 715 TH35) inside an IP40 enclosure, so it lives in a control cabinet or sheltered indoor location, not on the open plant floor. The anchor operates in the 2.4 GHz ISM band (2400–2480 MHz) with a maximum data rate of 1000 kbit/s over a mesh network. It draws 0.2 A at 24 VDC from a 5-pin plug-in connector, and its transmit power is adjustable from 0.00025 mW up to 100 mW — useful for tuning cell size in dense deployments.
Range / Maximum: 1000 m in open-air conditions. That is the theoretical line-of-sight maximum; real indoor range will be shorter due to walls, machinery, and multipath. The manual should be followed for site-specific placement. Accuracy of localization: typical 1.5 m. This is the precision you can expect for tag position estimates under normal conditions — adequate for zone-level tracking (which room or bay the tag is in) but not for sub-meter asset location. The anchor requires an external antenna via an RSMA female connector and ships with an antenna cable between 2 m and 3 m. The single external antenna is included as an accessory.
This is a spare part for the RTLS4400 system, so it is typically sourced against an existing BOM line.
Dimensions: 86 mm deep, 35 mm wide, 58 mm high. Color: light grey. Material: plastic. Two LEDs on the front provide status indication. The supply and I/O connect via a 5-pin plug-in connector. There are 0 digital inputs and 1 digital output — the output can be used to signal a tag event to a PLC or alarm.