MI-127

TMA TWIN 1800/2100

Designed to be deployed in collocated 1800, 2100 systems, the Kaelus MI-127 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.

FEATURES

  • Improved base station sensitivity through gain in the 1800, 2100 uplink
  • Internal diplexing on the high band port of 1800,2100 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

technical specifications
Band Name18002100
downlink
Passband1805 - 1880MHz2110 - 2170MHz
Insertion loss0.5dB typical0.3dB typical
Return loss20dB typical, 18dB minimum
Maximum input power200W (average)200W (average)
Intermodulation products-160dBc in RX band at ANT-168dBc in RX band at ANT
uplink
Passband1710 - 1785MHz1920 - 1980MHz
Gain12dB
Return loss16dB
Bypass return loss14dB
Bypass loss2dB typical2.2dB typical
Noise figure1.4dB typical1.3dB typical
Output IP325dBm typical
Maximum input power with no damage12dB typical
electrical
Impedance50Ohms
power supply and alarm (current window alarm mode, default)
Current window alarm mode (CWA) is the default operating mode and can be configured to specific customer requirements. Please contact Kaelus for more information.
DC supply voltage+9 to +15V DC
DC supply current, normal mode165mA @ 12V
DC supply current, alarm mode320mA max
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, 1.6A
environmental
For further details of environmental compliance, please contact Kaelus.
Temperature range-40ºC to +65ºC | -40°F to +149°F
Ingress protectionIP67
Lightning protectionIEC61312-1, RF: ±5kA (8/20us), AISG: ±2.5kA (8/20us)
MTBF>1,000,000 hours
ComplianceEMC: EN 301 489-8
Safety: IEC/EN 62368-1
Operation: ETSI EN 300 019-1-4 class 4.1E
Storage: ETS 300 019-1-1 class 1.2
mechanical
Dimensions H x D x W224 x 109 x 209 mm | 8.8 x 4.3 x 8.21in (excluding brackets and connectors)
Weight6.7kg | 14.8lbs
FinishPowder coated, NCS 1502-R
ConnectorsSee ordering information
MountingPole/wall bracket using two metal clamps, suits 40-140mm diameter poles
shipping information
Carton size360 x 270 x 180mm │ 14.7 x 10.63 x 7.09in
Gross weight (including packaging)7.5kg │ 16.5lb
Carton Qty / Pallet48
ordering information
Part NumberConfigurationOptional FeaturesConnectorsAISG Mode
MI-12751TWIN, 2 in / 2 outBASE MODEL7/16 (F)
1xAISG
COMMON MODE
ONETWO (*)
MI-12752TWIN, 2 in / 2 outBASE MODEL7/16 (F)
1xAISG
COMMON MODE
ONETWO (*)
MI-12756TWIN, 2 in / 2 outBASE MODEL7/16 (F)
2xAISG
INDEPENDENT
MI-12731TWIN, 2 in / 2 outBASE MODEL4.3-10 (F)
1xAISG
COMMON MODE
ONETWO (*)
MI-12732TWIN, 2 in / 2 outBASE MODEL4.3-10 (F)
1xAISG
COMMON MODE
ONETWO (*)
MI-12736TWIN, 2 in / 2 outBASE MODEL4.3-10 (F)
2xAISG
INDEPENDENT
(*) ONETWO: the TMA is identified as 1 logic unit with 2 subunits
(**) TWOTWO: the TMA is identified as 2 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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