MI-183
MI-183
The Kaelus MI-183 is designed to enhance cell uplink coverage in 1800 and 2100 MHz bands through improved system noise figure, reducing operational and capital expenditure. It features improved base station sensitivity, internal diplexing, excellent noise figure performance, and full AISG operation with RET antenna support.
Technical Specifications
- Downlink: Passband for 1800 MHz is 1805-1880 MHz and for 2100 MHz is 2110-2170 MHz with typical insertion loss of 0.5dB and 0.3dB respectively.
- Uplink: Passband for 1800 MHz is 1710-1785 MHz and for 2100 MHz is 1920-1980 MHz with a nominal gain of 12dB.
- L-Band Bypass Path: Passband is 1427-1496 MHz with typical insertion loss of 0.25dB.
- Electrical: Impedance is 50 Ohms.
Power Supply and Alarm
The default operating mode is Current Window Alarm Mode (CWA), configurable to customer requirements. DC supply voltage ranges from +9 to +15V DC with a normal mode current of 165mA at 12V.
AISG Mode of Operation
The TMA unit switches to AISG mode when valid AISG 2.0 frames are detected. Power consumption in AISG mode is less than 4W.
Environmental Specifications
- Temperature range: -40ºC to +65ºC
- Ingress protection: IP67
- Lightning protection: RF ±5kA, AISG ±2.5kA
- MTBF: >1,000,000 hours
Mechanical Specifications
- Dimensions: 224 x 115 x 244 mm
- Weight: 8kg
- Mounting: Pole/wall bracket for 40-140mm diameter poles
Ordering Information
Various configurations are available with different connector types and AISG modes, identified by part numbers such as MI-18301, MI-18302, etc.
Compliance
Complies with EMC: EN 301 489-8, Safety: IEC/EN 62368-1, and other relevant standards.
Catalog excerpts
MI-183 TMA TWIN 1800/2100 WITH L-BAND BYPASS Designed to be deployed in collocated L-Band, 1800 and 2100 systems, the Kaelus MI-183 enhances cell uplink coverage in 1800, 2100 through improved system noise figure, thereby saving operational and capital expenditure. Microdata Telecom rebranding to Kaelus! Microdata Telecom and Kaelus have had combined operations since Oct 2019 when Microdata acquired Kaelus. We strongly believe that by operating under one global brand we will clarify our strengthened position in the telecom market and from January 18th 2021, we are unifying the brands to Kaelus. • Improved base station sensitivity through gain in the 1800 and 2100 uplink • Internal diplexing on the antenna port of L-Band, 1800 and 2100 bands: 2 Antenna ports • Excellent noise figure performance • Full AISG operation and RET antenna support, AISG2.0 compatible • Small and light for minimum visual impact © Kaelus 2020. All rights reserved Page 1 Contact Us: +1 303 768 8080 | +61 (0) 7 3907 1200 | www.kaelus.com
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© Kaelus 2020. All rights reserved Page 2 Contact Us: +1 303 768 8080 | +61 (0) 7 3907 1200 | www.kaelus.com
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ELECTRICAL BLOCK DIAGRAM ANTI © Kaelus 2020. All rights reserved Page 3 Contact Us: +1 303 768 8080 | +61 (0) 7 3907 1200 | www.kaelus.com
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MECHANICAL BLOCK DIAGRAM Rev 2 Sep 24 2021 © Kaelus 2020. All rights reserved
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