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MI-127

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
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technical specifications
Band Name 1800 2100
downlink
Passband 1805 - 1880MHz 2110 - 2170MHz
Insertion loss 0.5dB typical 0.3dB typical
Return loss 20dB typical, 18dB minimum
Maximum input power 200W (average) 200W (average)
Intermodulation products -160dBc in RX band at ANT -168dBc in RX band at ANT
uplink
Passband 1710 - 1785MHz 1920 - 1980MHz
Gain 12dB
Return loss 16dB
Bypass return loss 14dB
Bypass loss 2dB typical 2.2dB typical
Noise figure 1.4dB typical 1.3dB typical
Output IP3 25dBm typical
Maximum input power with no damage 12dB typical
electrical
Impedance 50Ohms
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 mode 165mA @ 12V
DC supply current, alarm mode 320mA 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 version 2.0
Power consumption, AISG mode < 4W
AISG connector, current rating IEC60130-9, 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 protection IP67
Lightning protection IEC61312-1, RF: ±5kA (8/20us), AISG: ±2.5kA (8/20us)
MTBF >1,000,000 hours
Compliance EMC: 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 W 224 x 109 x 209 mm | 8.8 x 4.3 x 8.21in (excluding brackets and connectors)
Weight 6.7kg | 14.8lbs
Finish Powder coated, NCS 1502-R
Connectors See ordering information
Mounting Pole/wall bracket using two metal clamps, suits 40-140mm diameter poles
shipping information
Carton size 360 x 270 x 180mm │ 14.7 x 10.63 x 7.09in
Gross weight (including packaging) 7.5kg │ 16.5lb
Carton Qty / Pallet 48
ordering information
Part Number Configuration Optional Features Connectors AISG Mode
MI-12751 TWIN, 2 in / 2 out BASE MODEL 7/16 (F)
1xAISG		 COMMON MODE
ONETWO (*)
MI-12752 TWIN, 2 in / 2 out BASE MODEL 7/16 (F)
1xAISG		 COMMON MODE
TWOTWO (**)
MI-12756 TWIN, 2 in / 2 out BASE MODEL 7/16 (F)
2xAISG		 INDEPENDENT
MI-12731 TWIN, 2 in / 2 out BASE MODEL 4.3-10 (F)
1xAISG		 COMMON MODE
ONETWO (*)
MI-12732 TWIN, 2 in / 2 out BASE MODEL 4.3-10 (F)
1xAISG		 COMMON MODE
TWOTWO (**)
MI-12736 TWIN, 2 in / 2 out BASE MODEL 4.3-10 (F)
2xAISG		 INDEPENDENT
(*) ONETWO: the TMA is identified as 1 logic unit with 2 subunits each
(**) 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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