The Kaelus MI-548 is a bi-directional Diplexer, designed to combine or split 1800, 2100, 2300 and 2600 MHz bands. The MI-548 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 1800, 2100, 2300 and 2600 MHz bands systems
Compact & lightweight
Low insertion loss & high return loss
Low passive IM performance
Single twin and dual twin models available
7/16 (F), 4.3-10 (F) or NEX10 (F) connectors
Hard Wired and DC Autosense versions available
Provisions for wall or mast mounting
Mechanical block diagram
Mechanical block diagram
Electrical block diagram
Electrical block diagram
Technical specifications
Port Name
LOW
HIGH
Passband
1695 – 2200 MHz
2300 – 2700 MHz
Insertion loss
1695 – 2200 MHz 0.1 dB typical
2300 – 2700 MHz 0.12 dB typical
Return loss
20 dB typical, 18 dB minimum
Maximum input power
250 W (average)
Intermodulation products
-160 dBc with 2 x 20 W carriers
Rejection
50 dB minimum in 2300 – 2700 MHz
50 dB minimum in 1695 – 2200 MHz
electrical
Impedance
50 Ω
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.
Insertion loss
1 dB max
Return loss
12 dB min
Input voltage range
8 – 30 V DC max 0.3 W
DC current rating
2 A continuous, drop max 2.4 V
environmental
For further details of environmental compliance, please contact Kaelus.
Temperature range
-40 ºC to +65 ºC | -40 ºF to +149 ºF
Ingress protection
IP67
Lightning protection
10 kA maximum (8/20 us)
MTBF
> 1,000,000 Hours
Compliance
ETS 300 019 1-4E CLASS 4.1E (OPERATIONAL)
ETS 300 019 1-1 CLASS 1.2 (STORAGE)
mechanical
Feature
Single Mount
Dual Mount
Dimensions H x D x W
239 x110 x48.5 mm | 9.41 x 4.33 x 1.91 in
With Auto-Sense 239 x110 x60 mm | 9.41 x 4.33 x 2.36 in
239 x110 x89 mm | 9.41 x 4.33 x 3.5 in
With Auto-Sense 239 x110 x118 mm | 9.41 x 4.33 x 4.65 in
Weight
2.6 kg | 5.7 lb gross / 2.8 kg | 6.2 lb net
4.4 kg | 9.7 lb gross / 5.0 kg | 11.0 lb net
Finish
Painted, NCS 1502-R
Mounting
Pole/wall bracket supplied with two metal clamps for 40-140 mm diameter poles
Ordering information
Part Number
Configuration
Optional Features
Connectors
DC/AISG Configuration
MI-5480n
Single Mount
BASE MODEL
6 x 7/16 (F)
Refer to DC /AISG table
MI-5481n
Dual Mount
BASE MODEL
12 x 7/16 (F)
Refer to DC /AISG table
MI-5483n
Single Mount
BASE MODEL
6 x 4.3-10 (F)
Refer to DC /AISG table
MI-5484n
Dual Mount
BASE MODEL
12 x 4.3-10 (F)
Refer to DC /AISG table
MI-5487n
Single Mount
BASE MODEL
6 x NEX10 (F)
Refer to DC /AISG table
MI-5488n
Dual Mount
BASE MODEL
12 x NEX10 (F)
Refer to DC /AISG table
DC / ASIG CONFIGURATION
MI-548nA
Auto-Sense
MI-548n1
NO DC Path
MI-548n2
DC to LOW and HIGH
MI-548n3
DC to HIGH
MI-548n4
DC to LOW
Auto-Sence Priority
MI-548nA.1
FPO to LOW and HIGH
MI-548nA.2
XOR to LOW and HIGH
MI-548nA.3
HIGH Priority 1 and LOW Priority 2
MI-548nA.4
LOW Priority 1 and HIGH Priority 2
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