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MI-185

MI-185

TMA TWIN 1800/2100/2600 with L-Band bypass

Designed to be deployed in collocated 1800, 2100, 2600 and L band systems, the Kaelus MI-185 enhances cell uplink coverage in 1800, 2100 and 2600 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.

FEATURES

  • Improved base station sensitivity through gain in the 1800, 2100 and 2600 uplink
  • L-Band by pass
  • Internal diplexing: 2 Antenna ports
  • Excellent noise figure performance
  • Full AISG operation and RET antenna support, AISG2.0 compatible
  • Small and light for minimum visual impact
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technical specifications
Band Name 1800 2100 2600
downlink
Passband 1805 - 1880MHz 2110 - 2170MHz 2620 - 2690MHz
Insertion loss 0.5dB typical 0.4dB typical 0.4dB typical
Return loss 20dB typical, 18dB minimum
Maximum input power 200W (average)* 200W (average)* 200W (average)*
Intermodulation products -160dBc in RX band at ANT
uplink
Passband 1710 - 1785MHz 1920 - 1980MHz 2500 - 2570MHz
Gain 12dB
Return loss 16dB minimum
Bypass return loss 12dB minimum
Bypass loss 2dB typical 2.2dB typical 2dB typical
Noise figure 1.4dB typical 1.4dB typical 1.4dB typical
Output IP3 25dBm typical
l-band
Passband 1427 - 1517MHz
Insertion loss 0.25dB typical
Maximum input power 200W average (*)
(*) Limited to 500W (average) combined power at the ANT and BTS ports
electrical
Impedance 50Ohms
aisg mode of operation (auto selected on valid aisg 2.0 frames)
AISG signals can be applied to the BTS ports. The TMA unit switches to AISG mode when valid frames are detected on either port.
DC supply voltage +9.0V to +31V DC
AISG version 2.0
Power consumption, AISG mode < 4W
AISG connector, current rating IEC60130-9, 8-pin female
environmental
For further details of environmental compliance, please contact Kaelus.
Temperature range -40ºC to +65ºC | -40°F to +149°F
Ingress protection IP67
Lightning protection RF: ±5kA (8/20us), AISG: ±2.5kA (8/20us)
MTBF >1,000,000 hours
Compliance EMC: EN 301 489-23
Safety: IEC/EN 62368-1
Operation: ETSI EN 300 019-1-4 class 4.1E
Storage: ETSI 300 019-1-1 class 1.2
mechanical
Dimensions H x D x W 226 x 111 x 341 mm | 8.9 x 4.3 x 13.4in (excluding brackets and connectors)
Weight 10kg | 22.05lbs
Finish Powder coated, NCS 1502-R
Connectors See ordering information
Mounting Pole/wall bracket using two metal clamps, suits 40-140mm diameter poles
ordering information
Part Number Configuration Optional Features Connectors AISG Mode
MI-18501 TWIN, 2 in / 2 out BASE MODEL 7/16 (F)
1xAISG		 COMMON MODE
TWOTWO (*)
MI-18502 TWIN, 2 in / 2 out BASE MODEL 7/16 (F)
1xAISG		 COMMON MODE
TRITWO (**)
MI-18506 TWIN, 2 in / 2 out BASE MODEL 7/16 (F)
2xAISG		 INDEPENDENT
MI-18531 TWIN, 2 in / 2 out BASE MODEL 4.3-10 (F)
1xAISG		 COMMON MODE
TWOTWO (*)
MI-18532 TWIN, 2 in / 2 out BASE MODEL 4.3-10 (F)
1xAISG		 COMMON MODE
TRITWO (**)
MI-18536 TWIN, 2 in / 2 out BASE MODEL 4.3-10 (F)
2xAISG		 INDEPENDENT
(*) TWOTWO: the TMA is identified as 2 logic units with 2 subunits each
(**) TRITWO: the TMA is identified as 3 logic units with 2 subunits each
electrical block diagram
ELECTRICAL BLOCK DIAGRAM
mechanical block diagram
MECHANICAL BLOCK DIAGRAM MECHANICAL BLOCK DIAGRAM

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