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

technical specifications
Band Name180021002600
downlink
Passband1805 - 1880MHz2110 - 2170MHz2620 - 2690MHz
Insertion loss0.5dB typical0.4dB typical0.4dB typical
Return loss20dB typical, 18dB minimum
Maximum input power200W (average)*200W (average)*200W (average)*
Intermodulation products-160dBc in RX band at ANT
uplink
Passband1710 - 1785MHz1920 - 1980MHz2500 - 2570MHz
Gain12dB
Return loss16dB minimum
Bypass return loss12dB minimum
Bypass loss2dB typical2.2dB typical2dB typical
Noise figure1.4dB typical1.4dB typical1.4dB typical
Output IP325dBm typical
l-band
Passband1427 - 1517MHz
Insertion loss0.25dB typical
Maximum input power200W average (*)
(*) Limited to 500W (average) combined power at the ANT and BTS ports
electrical
Impedance50Ohms
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 version2.0
Power consumption, AISG mode< 4W
AISG connector, current ratingIEC60130-9, 8-pin female
environmental
For further details of environmental compliance, please contact Kaelus.
Temperature range-40ºC to +65ºC | -40°F to +149°F
Ingress protectionIP67
Lightning protectionRF: ±5kA (8/20us), AISG: ±2.5kA (8/20us)
MTBF>1,000,000 hours
ComplianceEMC: 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 W226 x 111 x 341 mm | 8.9 x 4.3 x 13.4in (excluding brackets and connectors)
Weight10kg | 22.05lbs
FinishPowder coated, NCS 1502-R
ConnectorsSee ordering information
MountingPole/wall bracket using two metal clamps, suits 40-140mm diameter poles
ordering information
Part NumberConfigurationOptional FeaturesConnectorsAISG Mode
MI-18501TWIN, 2 in / 2 outBASE MODEL7/16 (F)
1xAISG
COMMON MODE
TWOTWO (*)
MI-18502TWIN, 2 in / 2 outBASE MODEL7/16 (F)
1xAISG
COMMON MODE
TRITWO (**)
MI-18506TWIN, 2 in / 2 outBASE MODEL7/16 (F)
2xAISG
INDEPENDENT
MI-18531TWIN, 2 in / 2 outBASE MODEL4.3-10 (F)
1xAISG
COMMON MODE
TWOTWO (*)
MI-18532TWIN, 2 in / 2 outBASE MODEL4.3-10 (F)
1xAISG
COMMON MODE
TRITWO (**)
MI-12736TWIN, 2 in / 2 outBASE MODEL4.3-10 (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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