Telecom Tower Base Station Energy Monitoring Solution
Precise multi-channel metering for the AC & DC (-48Vdc) power system of telecom tower base stations — run it standalone, or hand the data straight into your own IoT platform.
One base station, two power worlds — measure both with one solution
A tower site always runs two power systems at the same time: an AC side (mains, back-up generator, aircon, lighting) and a DC side (-48Vdc for the communications equipment). Every consumer group needs its own metering point — that is exactly what this solution is built for.
AC + DC in one site
Utility mains, back-up generator, AC distribution cabinet, air conditioner and lighting on the AC side — plus each operator's communications equipment on the -48Vdc side. Different owners, different loads, all on one monitoring chain.
Multi-channel by design
One meter covers up to 6 DC circuits, or 4 three-phase / 12 single-phase AC circuits (mixed allowed). Split-core CTs and Hall-effect sensors install without cutting the main line — ideal for retrofit sites.
Local, or into your IoT
Run it as a standalone local monitoring system, or integrate with your existing IoT platform via RS485 (MODBUS-RTU) or the AWT100 gateway (MQTT / MODBUS-TCP). No platform replacement required.
A typical tower site, preset for you
Based on real-site samples — the standard monitoring points of a telecom tower base station, divided into the AC power side and the DC power side.
AC circuits to be monitored
Why these points
AC side at a glance
| Circuit | Type | Rating |
|---|---|---|
| Mains Supply | 3-phase | 3×100A · 380~456Vac |
| Back-up Generator | 3-phase | 3×100A · 380~456Vac |
| AC Distribution Cabinet | 3-phase | 3×100A · 380~456Vac |
| Air Conditioner | 3-phase | 3×32A · 380~456Vac |
| Lighting #1 | 1-phase | 16A · 230Vac |
| Lighting #2 | 1-phase | 16A · 230Vac |
DC circuits to be monitored
Why these points
DC side at a glance
| Circuit | Type | Rating |
|---|---|---|
| DC Main Circuit | DC | 250A · -48Vdc |
| Base Station Equipment #1 | DC | 50A · -48Vdc |
| Base Station Equipment #2 | DC | 50A · -48Vdc |
| Base Station Equipment #3 | DC | 50A · -48Vdc |
| Base Station Equipment #4 | DC | 50A · -48Vdc |
| Base Station Equipment #5 | DC | 50A · -48Vdc |
Two meters and two sensor families cover the whole site
Per the scenario preset, here is exactly how the Acrel hardware is deployed on each monitoring point.
AC power metering
Mains #1 · Generator #1 · AC DB output #1 · Aircon #1 — 4 three-phase circuits
- 1× DTSD1352-4S multi-circuit AC energy meter
- 4× AKH-0.66/K-Φ16N 100A/50mA split-core CT (1 set = 3 CTs)
Lighting #1-2 — 2 single-phase circuits
- 1× DTSD1352-4S multi-circuit AC energy meter
- 1× AKH-0.66/K-Φ16N 100A/50mA split-core CT (1 set = 3 CTs)
DC power metering
Base Station Equipments #1-5 + DC Main #1 — 6 DC circuits
- 1× AMC16L-DETT multi-circuit DC energy meter
- 5× AHKC-EKA 50A/5V split-core Hall-effect sensor
- 1× AHKC-EKB 250A/5V split-core Hall-effect sensor
| Location | Core Product | Qty |
|---|---|---|
| AC 3-phase circuits mains · generator · AC DB · aircon | DTSD1352-4S multi-circuit AC meter 4× 3-phase circuits · RS485 (MODBUS-RTU) | 1 meter |
| AC 1-phase lighting circuits lighting #1-2 | DTSD1352-4S multi-circuit AC meter 2× 1-phase circuits · RS485 (MODBUS-RTU) | 1 meter |
| AC 3-phase CTs | AKH-0.66/K-Φ16N split-core CT 100A/50mA · class 0.5 · φ16mm · 1 set = 3 CTs | 4 sets |
| AC 1-phase lighting CTs | AKH-0.66/K-Φ16N split-core CT 100A/50mA · class 0.5 · φ16mm · 1 set = 3 CTs | 1 set |
| DC circuits 5× BS equipment + 1× DC main | AMC16L-DETT multi-circuit DC meter 6× DC circuits · -48Vdc · RS485 (MODBUS-RTU) | 1 meter |
| DC 50A sub-circuits | AHKC-EKA split-core Hall sensor 0~50A DC · 0~±5Vdc · φ20mm | 5 pcs |
| DC 250A main circuit | AHKC-EKB split-core Hall sensor 0~250A DC · 0~±5Vdc · φ40mm | 1 pc |
The three devices behind the whole solution
Two multi-channel energy meters, one IoT gateway — plus the split-core sensors that pair with them. All designed and manufactured by Acrel for consistent quality, protocols and service.
DTSD1352-4SAC multi-circuit energy meter
- Up to 4× 3-phase or 12× 1-phase circuits (mixed allowed)
- Rated 3×380~456Vac L-L / 3×220~264Vac L-N, via -A/50mA CT
- RS485 (MODBUS-RTU) · aux. 85~265Vac/Vdc
- CE certified · pairs with AKH-0.66/K split-core CTs
AMC16L-DETTDC multi-circuit energy meter
- Up to 6 DC circuits on one meter, -48Vdc rated
- Via -A/5Vdc Hall-effect sensor · RS485 (MODBUS-RTU)
- Aux. -40~60Vdc; supplies ±12Vdc to paired Hall sensors
- 2MB data storage · IEC / CE certified
AWT100 SeriesIoT gateway
- Upstream 4G / WiFi / Ethernet (MQTT, MODBUS-TCP)
- Downstream RS485 (MODBUS-RTU), up to 25 circuits / 300m
- Aux. 85~265Vac (via AWT100-POW) or 24Vdc
- CE-RED certified · factory-integrated with Acrel meters
AKH-0.66/K-Φ16NSplit-core current transformer
- 100A/50mA AC ratio · accuracy class 0.5
- 16mm aperture, split-core — install without cutting cables
- Pairs with DTSD1352-4S AC meter · 1 set = 3 CTs
AHKC-EKASplit-core Hall-effect sensor
- 0~50A DC input · 0~±5Vdc output
- φ20mm aperture · powered by ±12Vdc from AMC16L-DETT
- Pairs with AMC16L-DETT DC meter
AHKC-EKBSplit-core Hall-effect sensor
- 0~250A DC input · 0~±5Vdc output
- φ40mm aperture · powered by ±12Vdc from AMC16L-DETT
- Pairs with AMC16L-DETT DC meter
Two ways to get the data into your system
Both meters speak RS485 (MODBUS-RTU). Depending on what you already have, connect them directly to your own IoT gateway — or let the AWT100 gateway bridge them to your platform over MQTT / MODBUS-TCP.
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