MI-255

TRIPLEXER 700-900/1800-2100/2300-2600

The Kaelus MI-255 is a bi-directional Triplexer, designed to combine or split 700. 800, 900, 1800, 2100, 2300 and 2600 MHz bands. The MI-255 provides low insertion loss and high return loss with excellent passive inter-modulation performance in an extremely small and lightweight IP67 capable package

FEATURES

  • Enables antenna & coax sharing for 700. 800, 900, 1800, 2100, 2300 and 2600 MHz bands systems
  • Compact & lightweight - perfect for Small Cell applications
  • Low insertion loss & high return loss
  • Low passive IM performance
  • Single twin and dual twin models available
  • 7/16 (F) or 4.3-10 (F) connectors
  • Hard Wired and DC Autosense versions available
  • Provisions for wall or mast mounting

technical specifications
Band Name700-9001800-21002300-2600
Passband698-960 MHz1710-2170 MHz2300-2690 MHz
Insertion loss<0.2dB typical
Return loss18dB minimum
Maximum input power250W (average)400W (average)250W (average)
Rejection50dB minimum
1710 - 2170 MHz
2300 - 2690 MHz
50dB minimum
698 - 960 MHz
2300 - 2690 MHz
50dB minimum
698 - 2170 MHz
electrical
Impedance50Ohms
Intermodulation products-160dBc / -117dBm @2x43dBm
dc / aisg
For hardwired versions, DC/AISG can be fully connected (DC all) or a specific connection can be orderd (DC custom).
For DC autosense versions, the DC/AISG path is automatically selected. In bottom of the tower applications (combiner mode), each RF channel port is sequentially checked for the presence of DC voltage. If more than one port has voltage, the port that has the highest (programmed) priority is passed to the common port. If a short circuit is detected on the common port DC/AISG is disabled. In top-of-tower applications (splitter mode), DC/AISG is passed to all ports that do not present a short circuit. If a short circuit is detected, the shorted RF port will be disabled for DC/AISG while other RF ports remain connected.
Input voltage range8 - 30V DC
DC current rating2A continuous
environmental
For further details of environmental compliance, please contact Kaelus.
Temperature range-40°C to +60ºC | -40°F to +140°F
Ingress protectionIP67, Outdoor unit
Lightning protectionIEC61312-1, RF: ±10kA (8/20us)
MTBF>1,000,000 hours
ComplianceETSI 300 019-1-4 Class 4.1E (OPERATIONAL)
ETSI 300 019-1-1 Class 1.2 (STORAGE)
mechanical
Hardwired DC
Dimensions H x D x W (single unit)170 x 150 x 50mm | 6.69 x 5.91 x 1.97in
Dimensions H x D x W (twin unit)170 x 150 x 107mm | 6.69 x 5.91 x 4.21in
Weight2.6kg | 5.73lbs (Single)
3.1kg | 6.83lbs (Twin)
Autosense
Dimensions H x D x W (single unit)170 x 150 x 62mm | 6.69 x 5.91 x 2.44in
Dimensions H x D x W (twin unit)170 x 150 x 128mm | 6.69 x 5.91 x 5.04in
Weight2.9kg | 6.4lbs (Single)
3.7kg | 7.4lbs (Twin)
FinishPainted, NCS 1502-R
Connectors7/16 (F) or 4.3-10 (F)
MountingPole/wall bracket supplied with two metal clamps for 45-178 mm diameter poles
selection guide
Part NumberDescriptionConnectors
MI-2550nSingle7/16 (F)
MI-2551nDual7/16 (F)
MI-2553nSingle4.3-10 (F)
MI-2554nDual4.3-10 (F)
dc/aisg configuration
Part Number700-900 (1)1800-2100 (2)2300-2600 (3)
MI-255nAAuto-Sense, FPO
MI-255nA.2Auto-Sense, XOR
MI-255nA.3Auto-Sense, Priority 321
MI-255nA.4Auto-Sense, Priority 123
MI-255nA.5Auto-Sense, Priority 231
MI-255nA.6Auto-Sense, Priority 213
MI-255n1BlockBlockPass
MI-255n2BlockPassBlock
MI-255n3PassBlockBlock
MI-255n4BlockPassPass
MI-255n5PassPassPass
MI-255n6PassBlockPass
MI-255n7BlockBlockBlock
electrical block diagram
ELECTRICAL BLOCK DIAGRAM
mechanical block diagram
MECHANICAL BLOCK DIAGRAM MECHANICAL BLOCK DIAGRAM

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